Title of Invention	PROCESS FOR PREPARING PERSONAL CLEANSING GEL COMPOSITION
Abstract	A process for preparing a personal cleansing gel composition, the process comprising preparing a solution comprising a chelating agent, a humectant and a hot diluent; heating the solution to a temperature below 100°C and adding a neutralizer and at least one of a surfactant, a conditioner, or a combination thereof, to provide a transparent mass; adding to the transparent mass a UV absorber and a colorant followed by de-aeration; adding a solution of rheology modifier to the de-aerated mass to provide a thickened solution; cooling the thickened solution and optionally adding at least one of preservatives, fragrances, emotive ingredients, solubilizers, active ingredients, free-radical scavengers and antioxidants to provide the personal cleansing gel composition, wherein the rheology modifier is added after the addition of neutralizer and under continued de-aeration conditions.

Title of Invention

PROCESS FOR PREPARING PERSONAL CLEANSING GEL COMPOSITION

Abstract

A process for preparing a personal cleansing gel composition, the process comprising preparing a solution comprising a chelating agent, a humectant and a hot diluent; heating the solution to a temperature below 100°C and adding a neutralizer and at least one of a surfactant, a conditioner, or a combination thereof, to provide a transparent mass; adding to the transparent mass a UV absorber and a colorant followed by de-aeration; adding a solution of rheology modifier to the de-aerated mass to provide a thickened solution; cooling the thickened solution and optionally adding at least one of preservatives, fragrances, emotive ingredients, solubilizers, active ingredients, free-radical scavengers and antioxidants to provide the personal cleansing gel composition, wherein the rheology modifier is added after the addition of neutralizer and under continued de-aeration conditions.

Full Text	FIELD OF THE INVENTION The invention relates to a process of preparation of personal cleansing gel composition for skin and/or hair. The invention relates to process of preparation of a personal cleansing gel composition, said personal cleansing gel composition comprising anionic surfactant, amphoteric surfactant, non-ionic surfactant, neutralizer and rheology modifier. In particular, the invention relates to a process for the preparation of personal cleansing gel compositions where the composition is devoid of air-bubbles. BACKGROUND OF THE ART Different kinds and varieties of personal cleansing gel composition are commonly available in market. Owing to the ingredients, which constitute them, they vary in their aesthetics appeal, fragrance, colour and delivery of desirable sensory and aroma therapeutic effects. An attractive visual appearance is sine qua non of beauty products to which personal cleansing gel composition is no exception. Therefore research has continually been focused on the general appearance of personal cleansing gel composition, improvements thereof and on processes, which provide products that find better acceptability amongst consumers. Transparent gel preparations appeal to the eye and air bubbles suspended in them further add to their aesthetic appeal. Many such products are known in the art and are available in the market. US 5,646,100 discloses an aqueous mild to the skin cleansing composition comprising laureth sulfate, an alkyl carboxy amido alkylene betaine, an alkyl polyglycoside and antibacterial effective amount of triclosan. US 6,518,228 discloses a ultra-mild, clear, aqueous, foamable skin cleanser composition comprising one salt of a fatty acid amide of an amino acid , acrylates/C10-30 alkyl acrylates crosspolymer, water. US 6,365,559 relates to a clear personal cleansing composition comprising water, sodium lauryl sulfate, an amphoteric cleansing agent compromising at least one betaine, a cloud point depressing agent comprising ammonium chloride, at least one preservative and optional ingredients. US 6,383,997 relates to an alcohol based antibacterial liquid formulation with high lathering properties, containing an antibacterial agent, an anionic surfactant, moisturizers, skin conditioners, and a high level of alcohol for frequent use in disinfecting the hands and body. US 5,866,110 relates to a mild liquid personal cleansing composition comprising an alkyl ethoxylated sulfate anionic surfactant, an amphoteric surfactant selected from the group consisting of betaine surfactants, an N-acylamino acid surfactant, or salt thereof, a cationic cellulose ether derivative, water and a C12 to C14 fatty alcohol. These prior patents disclose shower gel preparations, which may be opaque or transparent. However improvements have always been desirable and such products, which while appearing attractive are able to provide added sensory' and/or aroma-therapeutic effects are eagerly sought after. A step towards the preparation of such products has been the incorporation of insoluble particles containing desired active ingredients in shower gel formulations. Still more desirable are products wherein the incorporated particles, when used, may be suspended in the aqueous gel matrix to appear appealing to the eye. Achieving stability in such formulations, wherein the desired molecules have been suspended, is challenging. Even so, stabilization procedures, though not perfect, are known in the art. One of the problems associated with these procedures is the inadvertent appearance and stabilization of air bubbles in the formulation. A process to control the appearance of these air bubbles is not available in the known art. Even though a few suspended air bubbles are acceptable and help enhance the visual effect, an excess of these only makes the final formulation unattractive. High density of air bubbles also has a negative impact on the flowability characteristics of the gel composition, which is amplified manifold while handling the formulation on an industrial scale. Also, the presence of air bubbles causes hindrance during the filling procedure of the final formulation. Therefore the density of air bubbles present in the preparation need to be controlled necessarily. US 6,533,873 in particular discloses a shower gel formulation having a clear appearance which suspends insoluble particles, water insoluble liquids or bubbles and contains an acrylate copolymer, an anionic surfactant, a cationic polymer and, optionally, an amphoteric surfactant. The patent discloses several routes for the preparation of gels none of which is suitable for controlling the density of air bubbles. The products formed by following the disclosed methods contain suspended particles, which are rarely visible amongst a cluster of air bubbles. The air bubbles besides interfering in the filling operations of the final formulation make it look unsightly and unappealing to the onlookers. Hence there remains a need for gel products, which comprise suspended particles and are typically devoid of suspended air bubbles. Also there remains a need for a process by which gel products devoid of suspended air bubbles may be prepared. The need also remains for a process by which the density of air present in a gel preparation can be controlled. SUMMARY OF THE INVENTION According to one aspect of the present invention a process for the preparation of personal cleansing gel composition is disclosed. The process comprises the following steps: a) preparing a solution comprising a chelating agent, a humectant and a hot diluent; b) heating the solution to a temperature below 100°C and adding a neutralizer and at least one of a surfactant, a conditioner, or a combination thereof, to provide a transparent mass; c) adding to the transparent mass a UV absorber and a colorant followed by de-aeration to provide a de-aerated mass; d) adding a solution of rheology modifier to the de-aerated mass to provide a thickened solution; e) cooling the thickened solution and f) optionally adding at least one of preservatives, fragrances, emotive ingredients, solubilizers, active ingredients, free-radical scavengers and antioxidants to provide the personal cleansing gel composition. wherein the rheology modifier is added after the addition of neutralizer and under continued de-aeration conditions DETAILED DESCRIPTION OF THE INVENTION The present invention meets the above mentioned needs and other needs by providing a method to control the density of air bubbles present in a personal cleansing gel composition for skin and/or hair. In one of its embodiments the invention provides a process of preparation of a transparent personal cleansing gel composition containing suspended particles and typically devoid of any air bubbles. The invention provides a process for preparation of personal cleansing gel composition with enhanced aesthetic appeal. Firstly, a clear solution of chelating agents is made in hot diluent solution. Thereafter humectant is added to the mixture and it is reheated to a temperature below 100°C. To this mixture anionic surfactant, neutralizer, amphoteric surfactant, non-ionic surfactant, and conditioners are added sequentially to obtain a clear transparent mass. To this transparent mass a solution of neutralized UV absorber and thereafter colourant is added. The solution is de-aerated and temperature is maintained below 100°C. To the de-aerated mixture, a solution of rheology modifier is added to form a thickened solution. De-aeration is continued. The thickened solution is cooled and fragrances, preservatives, conditioners, active ingredients and emotive ingredients are added to obtain the personal cleansing gel formulation. Gel formulations prepared by following the disclosed sequence of the instant invention exhibit a conspicuous absence of air bubbles. The difference is striking when compared to personal cleansing gel formulations known in the prior art where a muddled mass of air bubbles appeared inadvertently. Owing to the absence of air bubbles an improvement in the flow-ability characters of the formulation is achieved. Further it is also noted that the filling procedures of the formulation becomes effortless at the time of final packing and dispensing. This is a much-desired attribute while carrying out the packaging of gel formulations in greater volumes. It has also been noted that the process steps for preparation of gel preparations are significant for the aesthetics of the final formulation. Thus depending upon the accuracy of the process used, a given set of ingredients may provide a bubble-free or bubbled formulation. Even slight departures from the process steps of the instant invention leads to the presence of air- bubbles in the final formulation. For instance when the steps of addition of neutralizer and rheology modifier are interchanged, the bubbles reappear, as in the process stated hereunder. Hot water is added to a mixer followed by a premixed clear solution of EDTA-TS/EDTA - DS powder, commonly known as ethylenediaminetetraacetic acid, and hot water. Thereafter glycerin is added to the mix. The solution is heated to temperature below 100°C. Thereafter SLES, also known as sodium lauryl ether sulphate, (m(EO) of 1 to 20) is added to main mixer and mixed thoroughly. To this TEA, also known as triethanolamine, premixed with water is added and mixed. Thereafter, acrylate copolymer is added to main mixer and mixed thoroughly for at least 15 minutes. Vacuum is applied and the mixture is cooled to about 50°C. Then cocoamido propyl betaine (CAPB) and alkyl glucoside are added to main mixer one by one and mixed thoroughly. This is followed by the addition of PEG/ PPG -8/ 3 Diisostearate to main mixer and mixed thoroughly until a clear transparent mass is formed. To the transparent mass Benzophenone-4 premixed with water and TEA is added and mixed thoroughly. Colour premixed with water is then added to main mixer and mixed thoroughly. The solution is thereafter cooled with cooling water/chilled to bring down the temperature to 40°C. Fragrance premixed with PEG-40 Hydrogenated Castor Oil and extracts are thereafter added followed by DMDM Hydantoin. The resultant formulation is allowed to cool to room temperature. The invention has herewith been described in further details with its various embodiments and examples all of which may be considered illustrative and in no way restrictive to the scope of the invention. The invention details a process of preparation of personal cleansing gel composition comprising an anionic surfactant, an amphoteric surfactant, a non ionic surfactant, a neutralizer and a rheology modifier along with conventional ingredients such as humectants. preservatives, chelating or sequestering agents, antioxidants, UV absorbers, skin conditioners (for skin cleanser), antimicrobial / antibacterial agents, emotive ingredients, cooling agents, fragrances, colouring agents, active ingredients, anti ageing active ingredients, solubilizers and diluents. The invention also discloses a process for the preparation of the gel preparation whereby the densityof air bubbles appearing inadvertently can be controlled effectively. As used herein the term 'personal cleansing composition' refers to transparent or opaque wash-off formulation for topical use in cleaning. They may be used for skin and or hair cleansing. Thus they may include shower gels and shampoos. These formulations may further comprise fragrances, smells, preservatives, skin moisturizers, sunscreen agents and such other agents, which have a desired sensory or aroma-therapeutic effect on the skin. As used herein the term 'air bubbles' refers to globular body of air or gas formed within a liquid. As used herein the term "surfactant' refers to agents that lower the surface tension of a liquid, allowing easier spreading, and lower the interfacial tension between two liquids. The term includes amphoteric, non-ionic, anionic, surfactants. The term is synonymous with wetting agents. The term 'rheology modifier' as used herein refers to compounds used to modify the rheology of a cosmetic formulation. The term 'particles' as used herein refers to units of active ingredients suspended in the gel formulation. The particle or unit may be in any of the physical forms such as solid, liquid or gaseous. The term as used herein may be considered synonymous with 'liquid droplets' or 'gas bubbles' suspended in gel. As used herein the term 'humectant' or 'humactant' refers to hygroscopic materials, which have property of absorbing water vapour from moist air until a certain degree of dilution is attained for example, polyols, gelatin, hyaluronic acid, honey, panthenol propylene glycol, sodium and ammonium lactate and the like. As used herein the term 'neutralizer' refers to a compound added to the composition to regulate its pH. The term includes organic and inorganic pH modifiers. The term 'emollient' as used herein refers to materials, which have been designed to soften the skin to touch and make the surface look smoother to the eye. Non-limiting examples of compounds, which may be used as emollients, include cyclomethicone, dimethicone, castor oil, isopropyl isostearate, etc. These emollients mostly work by forming a layer on the skin thus preventing the loss of water from the skin surface. As used herein the term 'skin conditioners' refers to an individual or combination of skin care products that help in improving the touch, feel, softness and appearance of skin. As used herein the term 'cooling agent' refers to a compound or a mixture of compounds added to a composition to provide a cooling effect, on application. The term 'fragrance' used herein refers to a mixture of fragrant essential oils, aroma compounds, fixatives, and solvents used to give the human body, objects, and living spaces a pleasant smell. The term as used herein may be considered synonymous with aroma, perfume, scent, smell and the like. As used herein the term 'solubilizer' refers to one or more compounds added to a composition to help dissolve such components as are typically insoluble in a given medium. The term 'antioxidants' used herein refers to one or more compounds, which prevent oxidation. The term includes compounds, which reduce oxidative damage As used herein the term 'chelating agent' refers to one or more compounds, which help maintain the integrity of a given formulation. The term includes sequestering agents. As used herein the term 'preservative' refers to one or more compounds that are added to the composition to protect it against decay or decomposition or to help improve its shelf life. As used herein the term 'colourant' refers to one or more compounds added to the composition to modify its hue. Within the scope of the instant invention the term 'emotive ingredient' encompass ingredients, which are symbolic of compounds known in literature for specific deliveries. The term is inclusive of plant and botanical extracts, minerals, salts, cooling agents and the like. The term 'active ingredient' used herein refers to components showing desirable characteristics in a gel formulation. These may be present in the formulation as suspended particles or otherwise. The term includes whitening components, anti-inflammatory agents, aging preventives, slimming agents, tonic agents, antioxidants (radical scavenger), humectants, silicones, conditioning agents, skin softeners, emollient, moisturizers, circulation promoters, drying agents, cooling agents, warming agents, vitamins, amino acids, wound healing promoters, irritation relaxants, analgesics, cell activators, skin colorants and enzyme components and the like. As used herein the term 'moisturizer' refers to one or more compounds added to the composition to counter skin dryness. The term 'UV absorbers' used in the present invention refers to the group or groups derived from compounds suitable for use as sun protection ingredients in cosmetic and/or personal care products. The term may be considered synonymous with sunscreens, sun protectants, UV protectants. As used herein the term 'vehicles' refers to an inert substance, which acts as a base for the formulation and in which all ingredients of a composition are mixed, individually, in combination or in a premixed form. The term may be considered synonymous with diluents, dilutant, volumizers, medium, thinner. As used herein, the term 'comprising' and its derivatives means are intended to be open ended terms that specify the presence of the stated features, elements, components, groups, integers, and/or steps, but do not exclude the presence of other, unstated features, elements, components, groups, integers, and/or steps. This definition also applies to words of similar meaning, for example, the term "have", "include", "be provided with" and their derivatives. All percentages, ratios and proportions herein are by weight of the composition, unless otherwise specified. All temperatures are in degrees Celsius (°C) unless otherwise specified. In one of its embodiments the invention discloses a process of preparation of personal cleansing gel composition said gel comprising anionic surfactants, nonionic surfactants, and amphoteric surfactants. Non limiting specific examples of surfactants applicable to the instant invention include alkyl benzene sulfonates, alkane sulfonates, olefin sulfonates, alkyl ether sulfonates, glycerol ether sulfonates, Sodium dodecyl sulfate (SDS), ammonium lauryl sulfate, and other alkyl sulfate salts Sodium laureth sulfate, also known as sodium lauryl ether sulfate (SLES) Soaps, or fatty acid salts, alpha.-methyl ester sulfonates, sulfofatty acids, alkyl sulfates, monoglyceride (ether) sulfates, fatty acid amide (ether) sulfates, mono- and dialkyl sulfosuccinates, mono- and dialkyl sulfosuccinamates, sulfotriglycerides, amide soaps, ether carboxylic acids and salts thereof, fatty acid isethionates, fatty acid sarcosinates, fatty acid taurides, acyl lactylates, acyl tartrates, acyl glutamates, acyl aspartates, alkyl oligoglucoside sulfates, protein fatty acid condensates (more particularly wheat-based vegetable products) and alkyl (ether) phosphates, Dodecyl betaine, Dodecyl dimethylamine oxide, Cocamidopropyl betaine,Coco ampho glycinate, alkyl betaines, alkyl amidobetaines, aminopropionates, aminoglycinates, imidazolinium betaines and sulfobetaines, fatty alcohol polyglycol ethers, alkylphenol polyglycol ethers, fatty acid polyglycol esters, fatty acid amide polyglycol ethers, fatty amine polyglycol ethers, alkoxylated triglycerides, alk(en)yl oligoglucosides, fatty acid-N-alkyl glucamides, protein hydrolyzates (more particularly soya- based vegetable products), polyol fatty acid esters, sugar esters, sorbitan esters and polysorbates, Alkyl poly(ethylene oxide), Copolymers of poly(ethylene oxide) and poly(propylene oxide) (commercially called Poloxamers or Poloxamines), Alkyl polyglucosides, including Octyl glucoside, Decyl maltoside, Fatty alcohols, Cetyl alcohol, Oleyl alcohol, Cocamide MEA, cocamide DEA, cocamide TEA and mixtures thereof. Non limiting examples of anionic surfactants which may be used in the instant invention are alkylarylsulphonates, e. g., sodium dodecylbenzene sulphonate, alkyl sulphates e. g., sodium lauryl sulphate, alkyl ether sulphates, e. g., sodium lauryl ether sulphate nEO, where n is from 1 to 20 alkylphenol ether sulphates, e. g., octylphenol ether sulphate nEO where n is from 1 to 20, and sulphosuccinates, e. g., sodium dioctylsulphosuccinate. Non limiting examples of nonionic surfactants which may be used in the instant invention are alkylphenol ethoxylates, e. g., nonylphenol ethoxylate nEO, where n is from 1 to 50 and alcohol ethoxylates, e. g., lauryl alcohol nEO, where n is from 1 to 50, ester ethoxylates, e. g., polyoxyethylene monostearate where the number of oxyethylene units is from 1 to 30, alkyl polygluclosides,alkyl glucosides e.g.,where alkyl (- C -) group is from 8 to 16. The anionic surfactants are generally present at levels of from 5 to 95%, preferably from about 10 to 85%, more preferably from about 10% to about 60% by weight based on the total weight of the composition. The non-ionic surfactants are generally present at levels of from 0.5 to 5 %, preferably from about 0.5 to 4%, more preferably from about 1% to about 3% by weight based on the total weight of the composition. The amphoteric surfactants are generally present at levels of from 0.5 to 5 %, preferably from about 0.5 to 4%, more preferably from about 1% to about 3% by weight based on the total weight of the composition. Non limiting examples of the rheology modifiers which may be used in the instant invention include acrylic polymers and copolymers, cross linked acrylic polymer and copolymers, alginates, carageenan, associative thickeners, microcrystalline celluloses, carboxymethyl celluloses, HECs, HPCs, HPMCs, methylclluloses, Guar and guar derivatives, polyethylenes, PVPs, PEOs, silica and silicones, clay and mixtures thereof. Specific non limiting examples of rheology modifiers which may be used in the instant invention include, acrylate copolymer, hydrogenated castor oil, solid triglycerides, fine solids (such as clays, zeolites, silicas, waxes), gums (such as guar gum, xanthan gum, carrageen, gum, Arabica), polysaccharides (such as cellulose or its derivatives, starch or its derivatives, dextrin, pectin), synthetic polymers including polycarboxylates (such as polyacrylates/maleates, polyamines, polyamides, vinyl-polymers and other homo-or co-polymers), and mixtures thereof. The rheology modifiers are generally present at levels of from 0.01 to 50%, preferably from about 0.5 to 25%, more preferably from about 7% to about 15% by weight based on the total weight of the composition. Non limiting examples of neutralizers which may be used in the instant invention include organic and inorganic neutralizers. Non-limiting examples of organic neutralizers are 2- amino-2-methyl-l, 3-propanediol (AMPD); 2-amino-2-ethyl-l, 3-propanediol (AEPD); 2- amino-2-methyl-l-propanol (AMP); 2-amino-l-butanol (AB); monoethanolamine (MEA); diethanolamine (DEA); triethanolamine (TEA); monoisopropanolamine (MIPA); diisopropanol-amine (DIPA); triisopropanolamine (TIPA); and dimethyl stearamine (DMS). A long chain amine neutralising agent such as stearamidopropyl dimethylamine or lauramidopropyl dimethylamine may be employed, as is described in U.S. Pat. No. 4,874,604. Also suitable are inorganic neutralisers, non limiting examples of which include sodium hydroxide, potassium hydroxide and borax The neutralizer is generally present at levels of from 0.1 to 5%, preferably from about 0.2 to 3%, more preferably from about 0.8% to about 2% by weight based on the total weight of the composition. Various conventional ingredients may be used as optional constituents of the instant invention such as humectants, neutralizers, preservatives, chelating or sequestering agents, antioxidants, UV absorbers, skin conditioners, hair conditioners,) antimicrobial/ antibacterial agents, emotive ingredients, cooling agents, fragrances, colouring agents, active ingredients, anti ageing active ingredients (for skin cleanser), solubilizers and diluents in the preparation of gel composition. Various humectants may be used as optional constituents of the instant invention. These may be selected from a group consisting of but not limited to urea, guanidine, glycolic acid, polyhydroxy alcohols such as sorbitol, glycerin, hexanetriol, propylene glycol, hexylene glycol and the like, polyethylene glycol, sugars and starches, sugar and starch derivatives, D- panthenol, hyaluronic acid, lactamide monoethanolamine, acetamide monoethanolamine, and mixtures thereof. The preferred humectant in the instant invention is glycerine. The humectants are generally present at levels of from 1 to 10%, preferably from about 2 to 8%, more preferably from about 2% to about 5% by weight based on the total weight of the composition. Various UV absorbers may be used as optional constituents of skin cleanser according to the instant invention. These may be selected from a group consisting of but not limited to UV absorbers and dispersants include p-aminobenzoic acid UV absorbers, anthranilic acid UV absorbers, salicylic acid UV absorbers, cinnamic acid UV absorbers, benzophenone UV absorbers, sugar UV absorbers, 3-(4'-methylbenzylidene)-d-camphor, 3-benzylidene-d,l- camphor, uroxanic acid, ethyl uroxanate, 2-phenyl-5-methylbenzoxazol, 2-(2'-hydroxy-5'-t- octylphenyl)benzotriazol, 2-(2'-hydroxy-5'-methylphenyl)benzotriazole, dibenzaladine, dianisoyl methane, 4-methoxy-4'-t-butyldibenzoylmethane, 5-(3,3-dimethyl-2- norbornyliden)-3-pentan-2-on, 2-hydroxy-4-methoxybenzophenone, octyldimethyl p- aminobenzoate, ethylhexyl p-methoxycinnamate, titanium oxide, kaolin, and talc. Preferably, the UV protecting group includes a group or groups derived from compounds suitable for use as sun protection ingredients in cosmetic and/or personal care products. Non-limiting examples of such compounds include para-aminobenzoic acid (PABA), dimethyl PABA, benzophenone-1, benzophenone-2, benzophenone-3, benzophenone-4,benzophenone-5, benzophenone-6, benzophenone-8, benzophenone-9,benzophenone-12, methoxycinnamate, ethyl dihydroxypropyl-PABA. glyceryl PABA, homosalate, methyl anthranilate, octocrylene, octyl dimethyl PABA, octyl methoxycinnamate, octyl salicylate, PABA, 2- phenylbenzimidazole-5-sulphonic acid, triethanolamine salicylate, 3-(4-methylbenzylidene)- camphor, avobenzone, and 2,6-dicarboxynaphtalenic acid. The UV absorbers are generally present at levels of from 0.001 to 2.0%, preferably from about 0.01 % . to 1.0% more preferably from about 0.02. % to about 0.10. % by weight based on the total weight of the composition. Various skin conditioners may be used as optional constituents of the instant invention. These may be selected from a group consisting of but not limited to stearate, olive oil, water, glycerin, urea, lactic acid and sorbitol, lanolin, esters and oils such as octyl dodecanol, hexyl decanol, oleyl alcohol, decyl oleate, isopropyl stearate, isopropyl palmitate, isopropyl myristate, hexyl laureate, dioctyl cyclohexane, silicones, Dimethicone PEG phosphate, PEGs, PPGs, diisostearates, PEG/PPG- dimethicones, polyquaternium. The conditioners are generally present at levels of from 0.1to 10%, preferably from about 0.5 to 8%, more preferably from about 1% to about 5 % by weight based on the total weight of the composition. Various cooling agents may be used as optional constituents of the instant invention. These may be selected from a group consisting of but not limited to ionic compounds, in particular ammonium salts, camphor, menthol, essential oils and derivatives thereof, menthyl lactate or menthyl 3-hydroxybutyrate The coolants are generally present at levels of from 0.001 to 3%, preferably from about 0.01 to 2%, more preferably from about 0.1% to about 1.0% by weight based on the total weight of the composition. Various fragrances may be used as optional constituents of the instant invention. These may be selected from a group consisting of but not limited to extracts from natural raw materials such as essential oils, concretes, absolutes, resins, resinoids, balsams, tinctures such as for example ambergris tincture; amyris oil; angelica seed oil; angelica root oil; aniseed oil; valerian oil; basil oil; tree moss absolute; bay oil; armoise oil; benzoe resinoid; bergamot oil; beeswax absolute; birch tar oil; bitter almond oil; savory oil; buchu leaf oil; cabreuva oil; cade oil; calamus oil; camphor oil; cananga oil; cardamom oil; cascarilla oil; cassia oil; cassie absolute; castoreum absolute; cedar leaf oil; cedar wood oil; cistus oil; citronella oil; lemon oil; copaiba balsam; copaiba balsam oil; coriander oil; costus root oil; cumin oil; cypress oil; davana oil; dill weed oil; dill seed oil; eau de brouts absolute; oakmoss absolute; elemi oil; estragon oil; eucalyptus citriodora oil; eucalyptus oil (cineole type); fennel oil; fir needle oil; galbanum oil; galbanum resin; geranium oil; grapefruit oil; guaiacwood oil; gurjun balsam; gurjun balsam oil; helichrysum absolute; helichrysum oil; ginger oil; iris root absolute; iris root oil; jasmine absolute; calamus oil; blue camomile oil; Roman camomile oil; carrot seed oil; cascarilla oil; pine needle oil; spearmint oil; caraway oil; labdanum oil; labdanum absolute; labdanum resin; lavandin absolute; lavandin oil; lavender absolute; lavender oil; lemon-grass oil; lovage oil; lime oil distilled; lime oil expressed; linaloe oil; Litsea cubeba oil; laurel leaf oil; mace oil; marjoram oil; mandarin oil; massoi (bark) oil; mimosa absolute; ambrette seed oil; musk tincture; clary sage oil; nutmeg oil; myrrh absolute; myrrh oil; myrtle oil; clove leaf oil; clove bud oil; neroli oil; olibanum absolute; olibanum oil; opopanax oil; orange flower absolute; orange oil; origanum oil; palmarosa oil; patchouli oil; perilla oil; Peru balsam oil; parsley leaf oil; parsley seed oil; petitgrain oil; peppermint oil; pepper oil; pimento oil; pine oil; pennyroyal oil; rose absolute; rosewood oil; rose oil; rosemary oil; Dalmatian sage oil; Spanish sage oil; sandalwood oil; celery seed oil: spike-lavender oil; star anise oil; storax oil; tagetes oil; fir needle oil; tea tree oil; turpentine oil; thyme oil; Tolu balsam; tonka bean absolute; tuberose absolute; vanilla extract; violet leaf absolute; verbena oil; vetiver oil; juniperberry oil; wine lees oil; wormwood oil; wintergreen oil; ylang-ylang oil; hyssop oil; civet absolute; cinnamon leaf oil; cinnamon bark oil; and fractions thereof or ingredients isolated therefrom; individual fragrance ingredients from the group comprising hydrocarbons, aliphatic alcohols, and their acetals aliphatic ketones and oximes thereof, aliphatic sulfur-containing compounds, aliphatic nitriles, aliphatic carboxylic acids and esters thereof, acyclic terpene alcohols, as well as formates, acetates, propionates, isobutyrates, butyrates, acyclic terpene aldehydes and ketones, cycloaliphatic alcohols, cycloaliphatic ethers, cyclic ketones, cycloaliphatic aldehydes, cycloaliphatic ketones, esters of cyclic alcohols, esters of cycloaliphatic carboxylic acids, araliphatic alcohols, esters of araliphatic alcohols and aliphatic carboxylic acids, aromatic and araliphatic aldehydes, aromatic and araliphatic ketones, aromatic and araliphatic carboxylic acids and esters thereof. Nitrogen- containing aromatic compounds, phenols, phenyl ethers and phenyl esters, heterocyclic compounds, lactones, and the like. The fragrances are generally present at levels of from 0.1.to 5%, preferably from about 0.25 to 3%, more preferably from about 0.5% to about 2% by weight based on the total weight of the composition. Various active ingredients may be used as optional constituents of the instant invention. These may be selected from a group consisting of but not limited to whitening components, anti-inflammatory agents, aging preventives, slimming agents, tonic agents, antioxidants (radical scavenger), humectants, circulation promoters, drying agents, cooling agents, warming agents, vitamins, amino acids, wound healing promoters, irritation relaxants, analgesics, cell activators, skin colorants and enzyme components and mixtures thereof. The active ingredients are generally present at levels of from 0.005 to 5%, preferably from about 0.01 to 3.0%, more preferably from about 0.5% to about 2.0 % by weight based on the total weight of the composition. Various solubilizers may be used as optional constituents of the instant invention. These may be selected from a group consisting of but not limited to polyhydric alcohols such as 1,2- propanediol, the various butanediols, glycerol, polyethylene glycol 400, also tetrahydrofurfuryl alcohol, diethylene glycol monoethyl ether, diethyltoluamide, monoisopropylideneglycerol, diisopropyl adipate, isopropyl myristate, vegetable oils, animal oils, alkyl glyceryl ethers, hydrocarbons, PEG-40 hydrogenated castor oil, PEG-60 Hydrogenated Castor oil, Oleth -20,Oleth-10,PPG-26-buteth-26,polysorbate-20,polysorbate- 21,polysorbate-80,polysorbate-81,polysorbate -85. The solubilizers are generally present at levels of from 0.1 to 9%, preferably from about 0.5 to 5%, more preferably from about 1% to about 4% by weight based on the total weight of the composition. Various chelating agents may be used as optional constituents of the instant invention. These may be selected from a group consisting of but not limited to Dimercaptosuccinic acid (DMSA), Dimercapto-propane sulfonate (DMPS), Alpha lipoic acid (ALA), Calcium disodium versante (CaNa2-EDTA), Disodium EDTA, EDTA - TS, Dimercaprol (BAL). The chelating agents are generally present at levels of from 0.001 to 0.5%, preferably from about 0.005 to 0.3%, more preferably from about 0.01%) to about 0.2% by weight based on the total weight of the composition. Various cosmeticaly and dermatologically suitable preservatives may be added to the instant composition. These may be selected from the group consisting of but not restricted to phenoxyethanol, para-hydroxybenzoic acid esters, also known as Parabens, for instance methyl para-hydroxybenzoate (methyl paraben), ethyl para-hydroxybenzoate (ethyl paraben) and propyl para-hydroxybenzoate (propyl paraben) and mixtures thereof; formaldehyde- releasing agents, for instance imidazolidinylurea or diazolidinylurea; haloalkynyl carbamates, for instance 3-iodo-2-propynyl butyl carbamate (IPBC); caprylyl glycol, also known as 1,2- octanediol; sodium benzoate; N-(3-chloroallyl)-hexaminium chloride (or Quaternium-15); polyhexamethylene biguanide hydrochloride (CTFA name: polyaminopropyl biguanide); alkyltrimethylammonium bromides, for instance dodecyltrimethylammonium bromide, myristyltrimethylammonium bromide and hexadecyltrimethylammonium bromide, and mixtures thereof. The preservatives are generally present at levels of 0.005 to 3.0%, preferably from about 0.01 to 2.0%, more preferably from about 0.05% to about 1.0% by weight based on the total weight of the composition. Free-radical scavengers and antioxidants for skin cleansing composition which may be optionally added to the compositions of the instant invention include but are not restricted to phosphonic acid derivatives such as ethylenediaminetetra (methylenephosphonic acid), methylene phosphonic acid, methylenephosphonic acid and salts thereof, in particular the sodium salts thereof; ethylenediaminetetraacetic acid and its salts, such as the sodium salt; guanosine; superoxide dismutase; tocopherol (vitamin E) and its derivatives (acetate); ethoxyquine; lactoferrin; lactoperoxidase, and nitroxide derivatives; superoxide dismutases; glutathione peroxidase; plant extracts with free-radical-scavenging activity, such as the aqueous extract of wheatgerm (Detoxiline), green tea, and mixtures thereof. The antioxidants are generally present at levels of from 0.001 to 5%, preferably from about 0.005 to 2.0%, more preferably from about 0.01. % to about 1.0% by weight based on the total weight of the composition. Colourants which may be optionally added to the compositions of the instant invention include but are not restricted to beta carotene, carotenoids, D&C Red 30 Talc Lake, D&C Red 7 Calcium Lake, D&C Red 34 Calcium Lake, mica/titanium dioxide/carmine pigments (e.g., Clorisonne Red from Engelhard, Duocrome RB from Engelhard, Magenta from Rona, Dichrona RB from Rona), Red 30 low iron, D&C Red Lake blend of Lake 27 & Lake 30, FD&C Yellow 5 Lake, Pigment Blue 15, Pigment violet 23, Acid red 33, Food red 1, Kowet titanium dioxide, yellow iron oxide, D&C Red 30 Lake, D&C Red 28 Lake, Cos Red Oxide BC, Cos Iron Oxide Red BC, Cos Iron Oxide Yellow, Cos Iron Oxide Yellow BC, Euroxide Red Unsteril, Euroxide Yellow Steril, Euroxide Red, Hydrophobic Euroxide Yellow, Hydrophobic Euroxide Red, FD&C Yellow no. 5, FD&C Blue no. 1, D&C Yellow 6 lake, D&C Yellow 5 Zr Lake, and mixtures thereof. The colourants are generally present at levels of from 0.00001 to 0.1%, preferably from about 0.00002 to 0.08%, more preferably from about 0.00005% to about 0.005% by weight based on the total weight of the composition. Emotive ingredients which may be optionally added to the compositions of the instant invention include but are not restricted to angelica extract, acerola extract, avocado extract, hydrangea extract, althea extract, arnica extract, aloe extract, apricot extract, apricot kernel extract, ginkgo biloba extract, fennel extract, turmeric extract, oolong tea extract, rose fruit extract, echinacea leaf extract, Scutellaria root extract, phellodendron bark extract, Japanese coptis extract, Prunus persica extract, barley extract, hypericum extract, white nettle extract, watercress extract, Cymbopogon schoenanthus extract, orange extract, sea water dry matter, seaweed extract, hydrolyzed elastin, hydrolyzed wheat powder, hydrolyzed silk, chamomile extract, carrot extract, artemisia capillaris extract, glycyrrhiza extract, ginseng extract, hibiscus sabdariffa extract, pyracantha fortuneana fruit extract, kiwi extract, cinchona extract, cucumber extract, guanosine, gardenia extract, sasa albomarginata extract, sophora root extract, menthol, cranberry extract, walnut extract, grapefruit extract, clematis extract, chlorella extract, mulberry bark extract, sea minerals, gentian extract, black tea extract, yeast extract, burdock root extract, rice bran fermentation extract, rice germ oil, ribes nigrum extract, arctostaphylos Uva-Ursi extract, comfrey extract, collagen, vaccinium vitis-idaea extract, asiasarum root extract, bupleurum root extract, umbilical cord extract, salvia extract, saponaria extract, sasa-bamboo extract, Crataegus fruit extract, zanthoxylum fruit extract, shiitake extract, rehmannia root extract, lithospermum root extract, perilla extract, tiliaceae extract, filipendula extract, peony root extract, acorus calamus root extract, birch bark extract, horsetail extract, ivy extract, hawthorn extract, sambucus extract, yarrow extract, peppermint extract, sage extract, mallow extract, cnidium rhizome extract, swertia herb extract, soy bean extract, jujube extract, wild thyme extract, green tea extract, clove extract, Imperata cylindrical extract, citrus unshiu peel extract, Japanese angelica root extract, calendula extract, peach kernel extract, bitter orange peel extract, houttuynia extract, tomato extract, natto extract, ginseng extract, garlic extract, wild rose extract, hibiscus extract, ophiopogon tuber extract, parsley extract, honey, witch hazel extract, parietaria extract, isodonis herba extract, loquat extract, coltsfoot extract, petasites japonicus extract, hoelen extract, butcherbroom extract, grape extract, propolis, sponge gourd extract, safflower extract, linden extract, paeonia extract, hops extract, pine tree extract, horse chestnut extract, lysichiton camtschatcense extract, mukurossi peel extract, balm mint extract, peach extract, cornflower extract, eucalyptus extract, saxifrage extract, citrus junos extract, coix seed extract, mugwort extract, lavender extract, apple extract, lettuce extract, lemon extract, Chinese milk vetch extract, rose extract, rosemary extract, Roman chamomile extract and royal jelly extract. The emotive ingredients are generally present at levels of from 0.001 to 5%, preferably from about 0.005 to 3.0%, more preferably from about 0.01. % to about 2.0% by weight based on the total weight of the composition. Various cosmetically acceptable vehicles may be used for the preparation of compositions as per the instant invention. These may be selected from the group consisting of but not restricted to aqueous diluents, alcohols, and combinations thereof. The vehicles will generally be present at levels of from quantity sufficient (q.s) to 100 of the composition. The amounts of the components are preferably at least 50% of anionic surfactants, 5 - 10% of amphoteric surfactants, 1-5% of non ionic surfactant, 1-10% rheology modifier, 0.10% - 1% of neutralizer, 1-5% of humectant, 1-5% soubilizer, compositions), 0.1% - 1.0% antioxidants (for skin cleansing compositions), colouring agents, fragrance, emotive ingredients and water q.s. Further water, EDTA - TS, Glycerine, SLES, TEA, Carbopol Aqua SF -1, CAPB, Decyl Glucoside, PEG/PPG/ Diisostearate, Benzophenone, TEA, colourant, DMDM Hydantoin, antioxidant, PEG-40 Hydrogenated Castor Oil, plant extracts, Trichlorocarbanilide are also present in the composition. Further preferred components include: at least 50% of anionic surfactants, 5 - 10% of amphoteric surfactants, 1-5% of non ionic surfactant, 1-10% rheology modifier, about 1% of pH adjuster, 1-5% of humectant, 1-5% soubilizer, colouring agents, fragrance, emotive ingredients and water q.s. The personal cleansing composition prepared by process of present invention wherein the density of the air bubbles present has been controlled is disclosed hereunder in form of a preferred non limiting example which may be considered illustrative and non restrictive to the scope of the present invention. These may be used as illustrative of the best mode of operation. Example 1 EDTA-TS 0.01 - 0.3 w/w %; Glycerine, 1.0 - 6.00 w/w %; SLES, 25 - 60.00 w/w %; TEA, 0.10 - 2.00 w/w %; Acrylate Copolymer, 5.00 - 12.00 w/w %; CAPB, 2.00 - 8.00 w/w %; Alkyl Glucoside, 0.50 - 5.00 w/w %; PEG/PPG /3 Diisostearate, 0.10 - 3.00 w/w %; Benzophenone - 4, 0.005 - 0.50 w/w %; Colours, 0.00001 - 0.001 w/w %; DMDM Hydantoin, 0.05 - 0.50 w/w %; Fragrance, 0.25 - 3.00 w/w %; Antioxidant, 0.001 - 0.50 w/w %; PEG-40 Hydrogenated Castor Oil, 0.50 - 4.0 w/w %; Extracts, 0.0005 - 0.50 w/w %;DM Water, qs-100%. Example 2 EDTA - TS, 0.05 w/w %; Glycerine 6 w/w %; SLES , 65 w/w %; TEA, 2 w/w %; Acrylate Copolymer, 12 w/w %; CAPB, 8 w/w %; Alkyl Glucoside, 5 w/w %; PEG/PPG/ Diisostearate, 2 w/w %; Benzophenone , 0.5 w/w %; TEA, 1 w/w %; Colourants, 0.001 w/w %; DMDM Hydantoin, 0.5 w/w %; Fragrance, 2 w/w %; Antioxidant, 0.5 w/w %; PEG-40 Hydrogenated Castor Oil, 3 w/w %; Extracts, 0.5 w/w%; DM Water, qs - 100%. Example 3 EDTA - TS, 0.05 w/w%; Glycerine, 1 w/w%; SLES, 25 w/w%; TEA, 0.1 w/w%; Acrylate Copolymer, 5 w/w%; CAPB, 2 w/w%; Alkyl Glucoside, 0.5 w/w%; PEG/PPG /3 Diisostearate, 0.1 w/w%; Benzophenone - 4, 0.005 w/w%; TEA 0.15 w/w%; Colours, 0.00001 w/w%; DMDM Hydantoin, 0.05 w/w%; Fragrance 0.25 w/w%; Antioxidant, 0.003 w/w%; PEG-40 Hydrogenated Castor Oil, 0.5 w/w%; Extracts, 0.0005 w/w%; Water, qs - 100%. Example 4 EDTA - TS, 0.1 w/w%; Glycerine, 3 w/w%; SLES, 45 w/w%; TEA, 0.9 w/w%; Acrylate copolymer, 9 w/w%; CAPB, 5 w/w%; Alkyl Glucoside, 2.5 w/w%; PEG/PPG/ Diisostearate, 1 w/w%; Benzophenone, 0.025 w/w%; TEA 0.0125 w/w%; Colourant, 0.001 w/w%; DMDM Hydantoin, 0.3 w/w%; Fragrance, 0.9 w/w%; Tinogard, 0.03 w/w%; PEG-40 Hydrogenated Castor Oil, 2.25 w/w%; Extracts, 0.1 w/w%; Active ingredient, 0.3 w/vv%; DM Water, qs - 100%. Process for preparation: Hot water is added to a mixer followed by a premixed clear solution of EDTA-TS/EDTA - DS powder and hot water. Thereafter glycerin is added to the mix. The solution is heated to temperature below 100°C. Thereafter SLES (m(EO) of 1 to 20) is added to main mixer and mixed thoroughly. To this TEA premixed with water is added and mixed. Thereafter, CAPB is added to main mixer and mixed thoroughly. Then alkyl glucoside is added to main mixer and mixed thoroughly. This is followed by the addition of PEG/ PPG -8/ 3 Diisostearate to main mixer and mixed thoroughly until a clear transparent mass is formed. To the transparent mass Benzophenone-4 premixed with water and TEA is added and mixed thoroughly. Colour premixed with water is then added to main mixer and mixed thoroughly. Vacuum is applied and maintained at 100 - 400 mmHg till the entire mass is completely clear of any aeration to get completely de-aerated mass. Temperature of the solution is maintained belowl00°C and acrylate copolymer premixed with water is added to the de-aerated mass to get a thickened solution. The transfer is typically free of air-bubble. Mixing is continued under 100 - 400 mmHg vacuum for about 1 - 60 minutes till the entire thickened solution is clear of any aeration. The solution is thereafter cooled with cooling water/chilled under continuous vacuum to bring down the temperature to 40°C. Fragrance premixed with PEG-40 Hydrogenated Castor Oil and extracts are thereafter added followed by DMDM Hydantoin. The resultant formulation is allowed to cool to room temperature to provide the personal cleansing gel composition. On visual examination no air bubbles are found in the formulation prepared by method stated in the instant invention. Example 5 : Consequence of altering the sequence of addition of neutralizer and rheology modifier Hot water is added to a mixer followed by a premixed clear solution of EDTA-TS/EDTA - DS powder, commonly known as ethylenediaminetetraacetic acid, and hot water. Thereafter glycerin is added to the mix. The solution is heated to temperature below 100°C. Thereafter SLES, also known as sodium lauryl ether sulphate, (m(EO) of 1 to 20) is added to main mixer and mixed thoroughly. To this TEA, also known as triethanolamine, premixed with water is added and mixed. Thereafter, acrylate copolymer is added to main mixer and mixed thoroughly for at least 15 minutes. Vacuum is applied and the mixture is cooled to about 50°C. Then cocoamido propyl betaine (CAPB) and alkyl glucoside are added to main mixer one by one and mixed thoroughly. This is followed by the addition of PEG/ PPG -8/ 3 Diisostearate to main mixer and mixed thoroughly until a clear transparent mass is formed. To the transparent mass Benzophenone - 4 premixed with water and TEA is added and mixed thoroughly. Colour premixed with water is then added to main mixer and mixed thoroughly. The solution is thereafter cooled with cooling water/chilled to bring down the temperature to 40°C. Fragrance premixed with PEG-40 Hydrogenated Castor Oil and extracts are thereafter added followed by DMDM Hydantoin. The resultant formulation is allowed to cool to room temperature. On visual inspection air bubbles were seen It was thus found that if the sequence of addition of ingredients in particular that of the neutralizer and rheology modifiers is altered or reversed, air bubbles reappeared even though all the ingredients and other process conditions are maintained. Other variations as may be obvious to one skilled in the art may be made in compounds, compositions, and methods described herein without departing from the essential features of the invention and therefore must be held non restrictive to the scope of the instant invention. The embodiments of the invention specifically illustrated herein are exemplary only and may not in any way be intended as limitations in its scope. WE CLAIM: 1. A process for preparing a personal cleansing gel composition, the process comprising: a) preparing a solution comprising a chelating agent, a humectant and a hot diluent; b) heating the solution to a temperature below 100°C and adding a neutralizer and at least one of a surfactant, a conditioner, or a combination thereof, to provide a transparent mass; c) adding to the transparent mass a UV absorber and a colorant followed by de-aeration; d) adding a solution of rheology modifier to the de-aerated mass to provide a thickened solution; e) cooling the thickened solution and optionally adding at least one of preservatives, fragrances, emotive ingredients, solubilizers, active ingredients, free-radical scavengers and antioxidants to provide the personal cleansing gel composition, wherein the rheology modifier is added after the addition of neutralizer and under continued de-aeration conditions. 2. The process of claim 1, wherein the rheology modifier is selected from the group comprising polysaccharides, gums, fine solids, synthetic polymers and copolymers, and mixtures thereof. 3. The process of claim 1, wherein the neutralizer is selected from the group comprising organic and inorganic neutralizers. 4. The process of claim 1, wherein the humectant is selected from the group comprising sorbitol, glycerin, hexanetriol, propylene glycol, hexylene glycol and the like, polyethylene glycol, sugars and starches, sugar and starch derivatives, D-panthenol, hyaluronic acid, lactamide monoethanolamine, acetamide monoethanolamine, and mixtures thereof. 5. The process of claim 1, wherein the chelating agent is selected from the group comprising Dimercaptosuccinic acid (DMSA), Dimercapto-propane sulfonate (DMPS), Alpha lipoic acid (ALA), Calcium disodium versante (CaNa2-EDTA), Disodium EDTA, EDTA - TS, Dimercaprol (BAL) and mixtures thereof. 6. The process of claim 1, wherein the diluent is selected from the group comprising aqueous diluents, alcoholic diluents and combinations thereof. 7. The process of claim 1, wherein the surfactant is selected from the group comprising anionic surfactants, non-ionic surfactants and amphoteric surfactants. 8. The process of claim 1, wherein the conditioner is selected from the group comprising stearate, olive oil, water, glycerin, urea, lactic acid, sorbitol, lanolin, esters and oils, silicones, Dimethicone PEG phosphate, PEGs, PPGs, isostearate, diisostearates, PEG/PPG- dimethicones, polyquaternium and mixtures thereof. 9. The process of claim 1, wherein the UV absorber is selected from the group comprising p- aminobenzoic acid UV absorbers, anthranilic acid UV absorbers, salicylic acid UV absorbers, cinnamic acid UV absorbers, benzophenone UV absorbers, sugar UV absorbers and mixtures thereof. 10. The process of claim 1, wherein the colorant is selected from the group comprising carotenoids, Pigments, Dyes, Acid red, Food red, Kowet titanium dioxide, FD&C Yellow, FD&C Blue, D&C Red, D&C Red Lake, Cos Red Oxide BC, Cos Iron Oxide Red BC, Cos Iron Oxide Yellow, yellow iron oxide, Cos Iron Oxide Yellow BC, Euroxide Red Unsteril, Euroxide Yellow Steril, Euroxide Red, Hydrophobic Euroxide Yellow, Hydrophobic Euroxide Red, and mixtures thereof 11. The process of claim 1, wherein the preservative is selected from the group comprising hydantoins, parabens, caprylyl glycols, formaldehyde-releasing agents, haloalkynyl carbamates and mixtures thereof. 12.The process of claim 1, wherein the fragrance is selected from the group comprising hydrocarbons, aliphatic alcohols, and their acetals aliphatic ketones and oximes thereof, aliphatic sulfur-containing compounds, aliphatic nitriles, aliphatic carboxylic acids and esters thereof, acyclic terpene alcohols, as well as formates, acetates, propionates, isobutyrates, butyrates, acyclic terpene aldehydes and ketones, cycloaliphatic alcohols, cycloaliphatic ethers, cyclic ketones, cycloaliphatic aldehydes, cycloaliphatic ketones, esters of cyclic alcohols, esters of cycloaliphatic carboxylic acids, araliphatic alcohols, esters of araliphatic alcohols and aliphatic carboxylic acids, aromatic and araliphatic aldehydes, aromatic and araliphatic ketones, aromatic and araliphatic carboxylic acids and esters thereof, Nitrogen-containing aromatic compounds, phenols, phenyl ethers and phenyl esters, heterocyclic compounds, lactones and mixtures thereof. 13. The process of claim 1, wherein the emotive ingredient is selected from the group comprising acerola extract, avocado extract, sea water dry matter, seaweed extract, peppermint extract, peach extract, carrot extract, artemisia capillaris extract, lemongrass extract, ginseng extract, menthol, Uva-Ursi extract, parsley extract, honey, Prunus persica extract, barley extract, mulberry bark extract, rice germ oil, ribes nigrum extract, turmeric extract, oolong tea extract and mixtures thereof. 14. The process of claim 1, wherein the free radical scavenger and antioxidant is selected from the group comprising phosphonic acid derivatives, vitamin derivatives, plant extracts, enzyme derivatives and mixtures thereof. 15. The process of claim 1, wherein the solubilizer is selected from the group comprising propanediols, butanediols, glycerol, polyethylene glycol 400, tetrahydrofurfuryl alcohol, diethylene glycol monoethyl ether, diethyltoluamide, monoisopropylideneglycerol, diisopropyl adipate, isopropyl myristate, vegetable oils, hydrogenated castor oil, animal oils, alkyl glyceryl ethers, hydrocarbons and mixtures thereof. 16. The process of claim 1, wherein the active ingredient is selected from the group comprising whitening components, anti-inflammatory agents, aging preventives, slimming agents, tonic agents, circulation promoters, drying agents, cooling agents, warming agents, vitamins, amino acids, wound healing promoters, irritation relaxants, analgesics, cell activators, skin colorants, enzyme components and mixtures thereof. 17. The process of preparation of the personal cleansing gel composition substantially as herein before described in any one of the examples. A process for preparing a personal cleansing gel composition, the process comprising preparing a solution comprising a chelating agent, a humectant and a hot diluent; heating the solution to a temperature below 100°C and adding a neutralizer and at least one of a surfactant, a conditioner, or a combination thereof, to provide a transparent mass; adding to the transparent mass a UV absorber and a colorant followed by de-aeration; adding a solution of rheology modifier to the de-aerated mass to provide a thickened solution; cooling the thickened solution and optionally adding at least one of preservatives, fragrances, emotive ingredients, solubilizers, active ingredients, free-radical scavengers and antioxidants to provide the personal cleansing gel composition, wherein the rheology modifier is added after the addition of neutralizer and under continued de-aeration conditions.

Full Text

FIELD OF THE INVENTION
The invention relates to a process of preparation of personal cleansing gel composition for
skin and/or hair. The invention relates to process of preparation of a personal cleansing gel
composition, said personal cleansing gel composition comprising anionic surfactant,
amphoteric surfactant, non-ionic surfactant, neutralizer and rheology modifier. In particular,
the invention relates to a process for the preparation of personal cleansing gel compositions
where the composition is devoid of air-bubbles.
BACKGROUND OF THE ART
Different kinds and varieties of personal cleansing gel composition are commonly available
in market. Owing to the ingredients, which constitute them, they vary in their aesthetics
appeal, fragrance, colour and delivery of desirable sensory and aroma therapeutic effects.
An attractive visual appearance is sine qua non of beauty products to which personal
cleansing gel composition is no exception. Therefore research has continually been focused
on the general appearance of personal cleansing gel composition, improvements thereof and
on processes, which provide products that find better acceptability amongst consumers.
Transparent gel preparations appeal to the eye and air bubbles suspended in them further add
to their aesthetic appeal. Many such products are known in the art and are available in the
market.
US 5,646,100 discloses an aqueous mild to the skin cleansing composition comprising
laureth sulfate, an alkyl carboxy amido alkylene betaine, an alkyl polyglycoside and
antibacterial effective amount of triclosan.
US 6,518,228 discloses a ultra-mild, clear, aqueous, foamable skin cleanser composition
comprising one salt of a fatty acid amide of an amino acid , acrylates/C10-30 alkyl acrylates
crosspolymer, water.
US 6,365,559 relates to a clear personal cleansing composition comprising water, sodium
lauryl sulfate, an amphoteric cleansing agent compromising at least one betaine, a cloud
point depressing agent comprising ammonium chloride, at least one preservative and optional
ingredients.
US 6,383,997 relates to an alcohol based antibacterial liquid formulation with high lathering
properties, containing an antibacterial agent, an anionic surfactant, moisturizers, skin
conditioners, and a high level of alcohol for frequent use in disinfecting the hands and body.
US 5,866,110 relates to a mild liquid personal cleansing composition comprising an alkyl
ethoxylated sulfate anionic surfactant, an amphoteric surfactant selected from the group
consisting of betaine surfactants, an N-acylamino acid surfactant, or salt thereof, a cationic
cellulose ether derivative, water and a C12 to C14 fatty alcohol.
These prior patents disclose shower gel preparations, which may be opaque or transparent.
However improvements have always been desirable and such products, which while
appearing attractive are able to provide added sensory' and/or aroma-therapeutic effects are
eagerly sought after. A step towards the preparation of such products has been the
incorporation of insoluble particles containing desired active ingredients in shower gel
formulations. Still more desirable are products wherein the incorporated particles, when used,
may be suspended in the aqueous gel matrix to appear appealing to the eye. Achieving
stability in such formulations, wherein the desired molecules have been suspended, is
challenging. Even so, stabilization procedures, though not perfect, are known in the art. One
of the problems associated with these procedures is the inadvertent appearance and
stabilization of air bubbles in the formulation. A process to control the appearance of these
air bubbles is not available in the known art. Even though a few suspended air bubbles are
acceptable and help enhance the visual effect, an excess of these only makes the final
formulation unattractive. High density of air bubbles also has a negative impact on the
flowability characteristics of the gel composition, which is amplified manifold while
handling the formulation on an industrial scale. Also, the presence of air bubbles causes
hindrance during the filling procedure of the final formulation. Therefore the density of air
bubbles present in the preparation need to be controlled necessarily.
US 6,533,873 in particular discloses a shower gel formulation having a clear appearance
which suspends insoluble particles, water insoluble liquids or bubbles and contains an
acrylate copolymer, an anionic surfactant, a cationic polymer and, optionally, an amphoteric
surfactant. The patent discloses several routes for the preparation of gels none of which is
suitable for controlling the density of air bubbles. The products formed by following the
disclosed methods contain suspended particles, which are rarely visible amongst a cluster of
air bubbles. The air bubbles besides interfering in the filling operations of the final
formulation make it look unsightly and unappealing to the onlookers.
Hence there remains a need for gel products, which comprise suspended particles and are
typically devoid of suspended air bubbles. Also there remains a need for a process by which
gel products devoid of suspended air bubbles may be prepared. The need also remains for a
process by which the density of air present in a gel preparation can be controlled.
SUMMARY OF THE INVENTION
According to one aspect of the present invention a process for the preparation of personal
cleansing gel composition is disclosed. The process comprises the following steps:
a) preparing a solution comprising a chelating agent, a humectant and a hot diluent;
b) heating the solution to a temperature below 100°C and adding a neutralizer and at
least one of a surfactant, a conditioner, or a combination thereof, to provide a
transparent mass;
c) adding to the transparent mass a UV absorber and a colorant followed by de-aeration
to provide a de-aerated mass;
d) adding a solution of rheology modifier to the de-aerated mass to provide a thickened
solution;
e) cooling the thickened solution and
f) optionally adding at least one of preservatives, fragrances, emotive ingredients,
solubilizers, active ingredients, free-radical scavengers and antioxidants to provide
the personal cleansing gel composition.
wherein the rheology modifier is added after the addition of neutralizer and under
continued de-aeration conditions
DETAILED DESCRIPTION OF THE INVENTION
The present invention meets the above mentioned needs and other needs by providing a
method to control the density of air bubbles present in a personal cleansing gel composition
for skin and/or hair. In one of its embodiments the invention provides a process of
preparation of a transparent personal cleansing gel composition containing suspended
particles and typically devoid of any air bubbles. The invention provides a process for
preparation of personal cleansing gel composition with enhanced aesthetic appeal.
Firstly, a clear solution of chelating agents is made in hot diluent solution. Thereafter
humectant is added to the mixture and it is reheated to a temperature below 100°C. To this
mixture anionic surfactant, neutralizer, amphoteric surfactant, non-ionic surfactant, and
conditioners are added sequentially to obtain a clear transparent mass. To this transparent
mass a solution of neutralized UV absorber and thereafter colourant is added. The solution is
de-aerated and temperature is maintained below 100°C. To the de-aerated mixture, a solution
of rheology modifier is added to form a thickened solution. De-aeration is continued. The
thickened solution is cooled and fragrances, preservatives, conditioners, active ingredients
and emotive ingredients are added to obtain the personal cleansing gel formulation.
Gel formulations prepared by following the disclosed sequence of the instant invention
exhibit a conspicuous absence of air bubbles. The difference is striking when compared to
personal cleansing gel formulations known in the prior art where a muddled mass of air
bubbles appeared inadvertently. Owing to the absence of air bubbles an improvement in the
flow-ability characters of the formulation is achieved. Further it is also noted that the filling
procedures of the formulation becomes effortless at the time of final packing and dispensing.
This is a much-desired attribute while carrying out the packaging of gel formulations in
greater volumes.
It has also been noted that the process steps for preparation of gel preparations are significant
for the aesthetics of the final formulation. Thus depending upon the accuracy of the process
used, a given set of ingredients may provide a bubble-free or bubbled formulation. Even
slight departures from the process steps of the instant invention leads to the presence of air-
bubbles in the final formulation. For instance when the steps of addition of neutralizer and
rheology modifier are interchanged, the bubbles reappear, as in the process stated hereunder.
Hot water is added to a mixer followed by a premixed clear solution of EDTA-TS/EDTA -
DS powder, commonly known as ethylenediaminetetraacetic acid, and hot water. Thereafter
glycerin is added to the mix. The solution is heated to temperature below 100°C. Thereafter
SLES, also known as sodium lauryl ether sulphate, (m(EO) of 1 to 20) is added to main
mixer and mixed thoroughly. To this TEA, also known as triethanolamine, premixed with
water is added and mixed. Thereafter, acrylate copolymer is added to main mixer and mixed
thoroughly for at least 15 minutes. Vacuum is applied and the mixture is cooled to about
50°C. Then cocoamido propyl betaine (CAPB) and alkyl glucoside are added to main mixer
one by one and mixed thoroughly. This is followed by the addition of PEG/ PPG -8/ 3
Diisostearate to main mixer and mixed thoroughly until a clear transparent mass is formed.
To the transparent mass Benzophenone-4 premixed with water and TEA is added and mixed
thoroughly. Colour premixed with water is then added to main mixer and mixed thoroughly.
The solution is thereafter cooled with cooling water/chilled to bring down the temperature to
40°C. Fragrance premixed with PEG-40 Hydrogenated Castor Oil and extracts are thereafter
added followed by DMDM Hydantoin. The resultant formulation is allowed to cool to room
temperature.
The invention has herewith been described in further details with its various embodiments
and examples all of which may be considered illustrative and in no way restrictive to the
scope of the invention.
The invention details a process of preparation of personal cleansing gel composition
comprising an anionic surfactant, an amphoteric surfactant, a non ionic surfactant, a
neutralizer and a rheology modifier along with conventional ingredients such as humectants.
preservatives, chelating or sequestering agents, antioxidants, UV absorbers, skin conditioners
(for skin cleanser), antimicrobial / antibacterial agents, emotive ingredients, cooling agents,
fragrances, colouring agents, active ingredients, anti ageing active ingredients, solubilizers
and diluents. The invention also discloses a process for the preparation of the gel preparation
whereby the densityof air bubbles appearing inadvertently can be controlled effectively.
As used herein the term 'personal cleansing composition' refers to transparent or opaque
wash-off formulation for topical use in cleaning. They may be used for skin and or hair
cleansing. Thus they may include shower gels and shampoos. These formulations may
further comprise fragrances, smells, preservatives, skin moisturizers, sunscreen agents and
such other agents, which have a desired sensory or aroma-therapeutic effect on the skin.
As used herein the term 'air bubbles' refers to globular body of air or gas formed within a
liquid.
As used herein the term "surfactant' refers to agents that lower the surface tension of a liquid,
allowing easier spreading, and lower the interfacial tension between two liquids. The term
includes amphoteric, non-ionic, anionic, surfactants. The term is synonymous with wetting
agents.
The term 'rheology modifier' as used herein refers to compounds used to modify the
rheology of a cosmetic formulation.
The term 'particles' as used herein refers to units of active ingredients suspended in the gel
formulation. The particle or unit may be in any of the physical forms such as solid, liquid or
gaseous. The term as used herein may be considered synonymous with 'liquid droplets' or
'gas bubbles' suspended in gel.
As used herein the term 'humectant' or 'humactant' refers to hygroscopic materials, which
have property of absorbing water vapour from moist air until a certain degree of dilution is
attained for example, polyols, gelatin, hyaluronic acid, honey, panthenol propylene glycol,
sodium and ammonium lactate and the like.
As used herein the term 'neutralizer' refers to a compound added to the composition to
regulate its pH. The term includes organic and inorganic pH modifiers.
The term 'emollient' as used herein refers to materials, which have been designed to soften
the skin to touch and make the surface look smoother to the eye. Non-limiting examples of
compounds, which may be used as emollients, include cyclomethicone, dimethicone, castor
oil, isopropyl isostearate, etc. These emollients mostly work by forming a layer on the skin
thus preventing the loss of water from the skin surface.
As used herein the term 'skin conditioners' refers to an individual or combination of skin
care products that help in improving the touch, feel, softness and appearance of skin.
As used herein the term 'cooling agent' refers to a compound or a mixture of compounds
added to a composition to provide a cooling effect, on application.
The term 'fragrance' used herein refers to a mixture of fragrant essential oils, aroma
compounds, fixatives, and solvents used to give the human body, objects, and living spaces a
pleasant smell. The term as used herein may be considered synonymous with aroma,
perfume, scent, smell and the like.
As used herein the term 'solubilizer' refers to one or more compounds added to a
composition to help dissolve such components as are typically insoluble in a given medium.
The term 'antioxidants' used herein refers to one or more compounds, which prevent
oxidation. The term includes compounds, which reduce oxidative damage
As used herein the term 'chelating agent' refers to one or more compounds, which help
maintain the integrity of a given formulation. The term includes sequestering agents.
As used herein the term 'preservative' refers to one or more compounds that are added to the
composition to protect it against decay or decomposition or to help improve its shelf life.
As used herein the term 'colourant' refers to one or more compounds added to the
composition to modify its hue.
Within the scope of the instant invention the term 'emotive ingredient' encompass
ingredients, which are symbolic of compounds known in literature for specific deliveries.
The term is inclusive of plant and botanical extracts, minerals, salts, cooling agents and the
like.
The term 'active ingredient' used herein refers to components showing desirable
characteristics in a gel formulation. These may be present in the formulation as suspended
particles or otherwise. The term includes whitening components, anti-inflammatory agents,
aging preventives, slimming agents, tonic agents, antioxidants (radical scavenger),
humectants, silicones, conditioning agents, skin softeners, emollient, moisturizers, circulation
promoters, drying agents, cooling agents, warming agents, vitamins, amino acids, wound
healing promoters, irritation relaxants, analgesics, cell activators, skin colorants and enzyme
components and the like.
As used herein the term 'moisturizer' refers to one or more compounds added to the
composition to counter skin dryness.
The term 'UV absorbers' used in the present invention refers to the group or groups derived
from compounds suitable for use as sun protection ingredients in cosmetic and/or personal
care products. The term may be considered synonymous with sunscreens, sun protectants,
UV protectants.
As used herein the term 'vehicles' refers to an inert substance, which acts as a base for the
formulation and in which all ingredients of a composition are mixed, individually, in
combination or in a premixed form. The term may be considered synonymous with diluents,
dilutant, volumizers, medium, thinner.
As used herein, the term 'comprising' and its derivatives means are intended to be open
ended terms that specify the presence of the stated features, elements, components, groups,
integers, and/or steps, but do not exclude the presence of other, unstated features, elements,
components, groups, integers, and/or steps. This definition also applies to words of similar
meaning, for example, the term "have", "include", "be provided with" and their derivatives.
All percentages, ratios and proportions herein are by weight of the composition, unless
otherwise specified. All temperatures are in degrees Celsius (°C) unless otherwise specified.
In one of its embodiments the invention discloses a process of preparation of personal
cleansing gel composition said gel comprising anionic surfactants, nonionic surfactants, and
amphoteric surfactants. Non limiting specific examples of surfactants applicable to the
instant invention include alkyl benzene sulfonates, alkane sulfonates, olefin sulfonates, alkyl
ether sulfonates, glycerol ether sulfonates, Sodium dodecyl sulfate (SDS), ammonium lauryl
sulfate, and other alkyl sulfate salts Sodium laureth sulfate, also known as sodium lauryl
ether sulfate (SLES) Soaps, or fatty acid salts, alpha.-methyl ester sulfonates, sulfofatty
acids, alkyl sulfates, monoglyceride (ether) sulfates, fatty acid amide (ether) sulfates, mono-
and dialkyl sulfosuccinates, mono- and dialkyl sulfosuccinamates, sulfotriglycerides, amide
soaps, ether carboxylic acids and salts thereof, fatty acid isethionates, fatty acid sarcosinates,
fatty acid taurides, acyl lactylates, acyl tartrates, acyl glutamates, acyl aspartates, alkyl
oligoglucoside sulfates, protein fatty acid condensates (more particularly wheat-based
vegetable products) and alkyl (ether) phosphates, Dodecyl betaine, Dodecyl dimethylamine
oxide, Cocamidopropyl betaine,Coco ampho glycinate, alkyl betaines, alkyl amidobetaines,
aminopropionates, aminoglycinates, imidazolinium betaines and sulfobetaines, fatty alcohol
polyglycol ethers, alkylphenol polyglycol ethers, fatty acid polyglycol esters, fatty acid
amide polyglycol ethers, fatty amine polyglycol ethers, alkoxylated triglycerides, alk(en)yl
oligoglucosides, fatty acid-N-alkyl glucamides, protein hydrolyzates (more particularly soya-
based vegetable products), polyol fatty acid esters, sugar esters, sorbitan esters and
polysorbates, Alkyl poly(ethylene oxide), Copolymers of poly(ethylene oxide) and
poly(propylene oxide) (commercially called Poloxamers or Poloxamines), Alkyl
polyglucosides, including Octyl glucoside, Decyl maltoside, Fatty alcohols, Cetyl alcohol,
Oleyl alcohol, Cocamide MEA, cocamide DEA, cocamide TEA and mixtures thereof.
Non limiting examples of anionic surfactants which may be used in the instant invention are
alkylarylsulphonates, e. g., sodium dodecylbenzene sulphonate, alkyl sulphates e. g., sodium
lauryl sulphate, alkyl ether sulphates, e. g., sodium lauryl ether sulphate nEO, where n is
from 1 to 20 alkylphenol ether sulphates, e. g., octylphenol ether sulphate nEO where n is
from 1 to 20, and sulphosuccinates, e. g., sodium dioctylsulphosuccinate.
Non limiting examples of nonionic surfactants which may be used in the instant invention are
alkylphenol ethoxylates, e. g., nonylphenol ethoxylate nEO, where n is from 1 to 50 and
alcohol ethoxylates, e. g., lauryl alcohol nEO, where n is from 1 to 50, ester ethoxylates, e.
g., polyoxyethylene monostearate where the number of oxyethylene units is from 1 to 30,
alkyl polygluclosides,alkyl glucosides e.g.,where alkyl (- C -) group is from 8 to 16.
The anionic surfactants are generally present at levels of from 5 to 95%, preferably from
about 10 to 85%, more preferably from about 10% to about 60% by weight based on the total
weight of the composition. The non-ionic surfactants are generally present at levels of from
0.5 to 5 %, preferably from about 0.5 to 4%, more preferably from about 1% to about 3% by
weight based on the total weight of the composition. The amphoteric surfactants are
generally present at levels of from 0.5 to 5 %, preferably from about 0.5 to 4%, more
preferably from about 1% to about 3% by weight based on the total weight of the
composition.
Non limiting examples of the rheology modifiers which may be used in the instant invention
include acrylic polymers and copolymers, cross linked acrylic polymer and copolymers,
alginates, carageenan, associative thickeners, microcrystalline celluloses, carboxymethyl
celluloses, HECs, HPCs, HPMCs, methylclluloses, Guar and guar derivatives, polyethylenes,
PVPs, PEOs, silica and silicones, clay and mixtures thereof. Specific non limiting examples
of rheology modifiers which may be used in the instant invention include, acrylate
copolymer, hydrogenated castor oil, solid triglycerides, fine solids (such as clays, zeolites,
silicas, waxes), gums (such as guar gum, xanthan gum, carrageen, gum, Arabica),
polysaccharides (such as cellulose or its derivatives, starch or its derivatives, dextrin, pectin),
synthetic polymers including polycarboxylates (such as polyacrylates/maleates, polyamines,
polyamides, vinyl-polymers and other homo-or co-polymers), and mixtures thereof. The
rheology modifiers are generally present at levels of from 0.01 to 50%, preferably from about
0.5 to 25%, more preferably from about 7% to about 15% by weight based on the total
weight of the composition.
Non limiting examples of neutralizers which may be used in the instant invention include
organic and inorganic neutralizers. Non-limiting examples of organic neutralizers are 2-
amino-2-methyl-l, 3-propanediol (AMPD); 2-amino-2-ethyl-l, 3-propanediol (AEPD); 2-
amino-2-methyl-l-propanol (AMP); 2-amino-l-butanol (AB); monoethanolamine (MEA);
diethanolamine (DEA); triethanolamine (TEA); monoisopropanolamine (MIPA);
diisopropanol-amine (DIPA); triisopropanolamine (TIPA); and dimethyl stearamine (DMS).
A long chain amine neutralising agent such as stearamidopropyl dimethylamine or
lauramidopropyl dimethylamine may be employed, as is described in U.S. Pat. No.
4,874,604. Also suitable are inorganic neutralisers, non limiting examples of which include
sodium hydroxide, potassium hydroxide and borax The neutralizer is generally present at
levels of from 0.1 to 5%, preferably from about 0.2 to 3%, more preferably from about 0.8%
to about 2% by weight based on the total weight of the composition.
Various conventional ingredients may be used as optional constituents of the instant
invention such as humectants, neutralizers, preservatives, chelating or sequestering agents,
antioxidants, UV absorbers, skin conditioners, hair conditioners,) antimicrobial/ antibacterial
agents, emotive ingredients, cooling agents, fragrances, colouring agents, active ingredients,
anti ageing active ingredients (for skin cleanser), solubilizers and diluents in the preparation
of gel composition.
Various humectants may be used as optional constituents of the instant invention. These may
be selected from a group consisting of but not limited to urea, guanidine, glycolic acid,
polyhydroxy alcohols such as sorbitol, glycerin, hexanetriol, propylene glycol, hexylene
glycol and the like, polyethylene glycol, sugars and starches, sugar and starch derivatives, D-
panthenol, hyaluronic acid, lactamide monoethanolamine, acetamide monoethanolamine, and
mixtures thereof. The preferred humectant in the instant invention is glycerine. The
humectants are generally present at levels of from 1 to 10%, preferably from about 2 to 8%,
more preferably from about 2% to about 5% by weight based on the total weight of the
composition.
Various UV absorbers may be used as optional constituents of skin cleanser according to the
instant invention. These may be selected from a group consisting of but not limited to UV
absorbers and dispersants include p-aminobenzoic acid UV absorbers, anthranilic acid UV
absorbers, salicylic acid UV absorbers, cinnamic acid UV absorbers, benzophenone UV
absorbers, sugar UV absorbers, 3-(4'-methylbenzylidene)-d-camphor, 3-benzylidene-d,l-
camphor, uroxanic acid, ethyl uroxanate, 2-phenyl-5-methylbenzoxazol, 2-(2'-hydroxy-5'-t-
octylphenyl)benzotriazol, 2-(2'-hydroxy-5'-methylphenyl)benzotriazole, dibenzaladine,
dianisoyl methane, 4-methoxy-4'-t-butyldibenzoylmethane, 5-(3,3-dimethyl-2-
norbornyliden)-3-pentan-2-on, 2-hydroxy-4-methoxybenzophenone, octyldimethyl p-
aminobenzoate, ethylhexyl p-methoxycinnamate, titanium oxide, kaolin, and talc. Preferably,
the UV protecting group includes a group or groups derived from compounds suitable for use
as sun protection ingredients in cosmetic and/or personal care products. Non-limiting
examples of such compounds include para-aminobenzoic acid (PABA), dimethyl PABA,
benzophenone-1, benzophenone-2, benzophenone-3, benzophenone-4,benzophenone-5,
benzophenone-6, benzophenone-8, benzophenone-9,benzophenone-12, methoxycinnamate,
ethyl dihydroxypropyl-PABA. glyceryl PABA, homosalate, methyl anthranilate, octocrylene,
octyl dimethyl PABA, octyl methoxycinnamate, octyl salicylate, PABA, 2-
phenylbenzimidazole-5-sulphonic acid, triethanolamine salicylate, 3-(4-methylbenzylidene)-
camphor, avobenzone, and 2,6-dicarboxynaphtalenic acid. The UV absorbers are generally
present at levels of from 0.001 to 2.0%, preferably from about 0.01 % . to 1.0% more
preferably from about 0.02. % to about 0.10. % by weight based on the total weight of the
composition.
Various skin conditioners may be used as optional constituents of the instant invention.
These may be selected from a group consisting of but not limited to stearate, olive oil, water,
glycerin, urea, lactic acid and sorbitol, lanolin, esters and oils such as octyl dodecanol, hexyl
decanol, oleyl alcohol, decyl oleate, isopropyl stearate, isopropyl palmitate, isopropyl
myristate, hexyl laureate, dioctyl cyclohexane, silicones, Dimethicone PEG phosphate,
PEGs, PPGs, diisostearates, PEG/PPG- dimethicones, polyquaternium. The conditioners are
generally present at levels of from 0.1to 10%, preferably from about 0.5 to 8%, more
preferably from about 1% to about 5 % by weight based on the total weight of the
composition.
Various cooling agents may be used as optional constituents of the instant invention. These
may be selected from a group consisting of but not limited to ionic compounds, in particular
ammonium salts, camphor, menthol, essential oils and derivatives thereof, menthyl lactate or
menthyl 3-hydroxybutyrate The coolants are generally present at levels of from 0.001 to 3%,
preferably from about 0.01 to 2%, more preferably from about 0.1% to about 1.0% by weight
based on the total weight of the composition.
Various fragrances may be used as optional constituents of the instant invention. These may
be selected from a group consisting of but not limited to extracts from natural raw materials
such as essential oils, concretes, absolutes, resins, resinoids, balsams, tinctures such as for
example ambergris tincture; amyris oil; angelica seed oil; angelica root oil; aniseed oil;
valerian oil; basil oil; tree moss absolute; bay oil; armoise oil; benzoe resinoid; bergamot oil;
beeswax absolute; birch tar oil; bitter almond oil; savory oil; buchu leaf oil; cabreuva oil;
cade oil; calamus oil; camphor oil; cananga oil; cardamom oil; cascarilla oil; cassia oil; cassie
absolute; castoreum absolute; cedar leaf oil; cedar wood oil; cistus oil; citronella oil; lemon
oil; copaiba balsam; copaiba balsam oil; coriander oil; costus root oil; cumin oil; cypress oil;
davana oil; dill weed oil; dill seed oil; eau de brouts absolute; oakmoss absolute; elemi oil;
estragon oil; eucalyptus citriodora oil; eucalyptus oil (cineole type); fennel oil; fir needle oil;
galbanum oil; galbanum resin; geranium oil; grapefruit oil; guaiacwood oil; gurjun balsam;
gurjun balsam oil; helichrysum absolute; helichrysum oil; ginger oil; iris root absolute; iris
root oil; jasmine absolute; calamus oil; blue camomile oil; Roman camomile oil; carrot seed
oil; cascarilla oil; pine needle oil; spearmint oil; caraway oil; labdanum oil; labdanum
absolute; labdanum resin; lavandin absolute; lavandin oil; lavender absolute; lavender oil;
lemon-grass oil; lovage oil; lime oil distilled; lime oil expressed; linaloe oil; Litsea cubeba
oil; laurel leaf oil; mace oil; marjoram oil; mandarin oil; massoi (bark) oil; mimosa absolute;
ambrette seed oil; musk tincture; clary sage oil; nutmeg oil; myrrh absolute; myrrh oil; myrtle
oil; clove leaf oil; clove bud oil; neroli oil; olibanum absolute; olibanum oil; opopanax oil;
orange flower absolute; orange oil; origanum oil; palmarosa oil; patchouli oil; perilla oil;
Peru balsam oil; parsley leaf oil; parsley seed oil; petitgrain oil; peppermint oil; pepper oil;
pimento oil; pine oil; pennyroyal oil; rose absolute; rosewood oil; rose oil; rosemary oil;
Dalmatian sage oil; Spanish sage oil; sandalwood oil; celery seed oil: spike-lavender oil; star
anise oil; storax oil; tagetes oil; fir needle oil; tea tree oil; turpentine oil; thyme oil; Tolu
balsam; tonka bean absolute; tuberose absolute; vanilla extract; violet leaf absolute; verbena
oil; vetiver oil; juniperberry oil; wine lees oil; wormwood oil; wintergreen oil; ylang-ylang
oil; hyssop oil; civet absolute; cinnamon leaf oil; cinnamon bark oil; and fractions thereof or
ingredients isolated therefrom; individual fragrance ingredients from the group comprising
hydrocarbons, aliphatic alcohols, and their acetals aliphatic ketones and oximes thereof,
aliphatic sulfur-containing compounds, aliphatic nitriles, aliphatic carboxylic acids and esters
thereof, acyclic terpene alcohols, as well as formates, acetates, propionates, isobutyrates,
butyrates, acyclic terpene aldehydes and ketones, cycloaliphatic alcohols, cycloaliphatic
ethers, cyclic ketones, cycloaliphatic aldehydes, cycloaliphatic ketones, esters of cyclic
alcohols, esters of cycloaliphatic carboxylic acids, araliphatic alcohols, esters of araliphatic
alcohols and aliphatic carboxylic acids, aromatic and araliphatic aldehydes, aromatic and
araliphatic ketones, aromatic and araliphatic carboxylic acids and esters thereof. Nitrogen-
containing aromatic compounds, phenols, phenyl ethers and phenyl esters, heterocyclic
compounds, lactones, and the like. The fragrances are generally present at levels of from
0.1.to 5%, preferably from about 0.25 to 3%, more preferably from about 0.5% to about 2%
by weight based on the total weight of the composition.
Various active ingredients may be used as optional constituents of the instant invention.
These may be selected from a group consisting of but not limited to whitening components,
anti-inflammatory agents, aging preventives, slimming agents, tonic agents, antioxidants
(radical scavenger), humectants, circulation promoters, drying agents, cooling agents,
warming agents, vitamins, amino acids, wound healing promoters, irritation relaxants,
analgesics, cell activators, skin colorants and enzyme components and mixtures thereof. The
active ingredients are generally present at levels of from 0.005 to 5%, preferably from about
0.01 to 3.0%, more preferably from about 0.5% to about 2.0 % by weight based on the total
weight of the composition.
Various solubilizers may be used as optional constituents of the instant invention. These may
be selected from a group consisting of but not limited to polyhydric alcohols such as 1,2-
propanediol, the various butanediols, glycerol, polyethylene glycol 400, also
tetrahydrofurfuryl alcohol, diethylene glycol monoethyl ether, diethyltoluamide,
monoisopropylideneglycerol, diisopropyl adipate, isopropyl myristate, vegetable oils, animal
oils, alkyl glyceryl ethers, hydrocarbons, PEG-40 hydrogenated castor oil, PEG-60
Hydrogenated Castor oil, Oleth -20,Oleth-10,PPG-26-buteth-26,polysorbate-20,polysorbate-
21,polysorbate-80,polysorbate-81,polysorbate -85. The solubilizers are generally present at
levels of from 0.1 to 9%, preferably from about 0.5 to 5%, more preferably from about 1% to
about 4% by weight based on the total weight of the composition.
Various chelating agents may be used as optional constituents of the instant invention. These
may be selected from a group consisting of but not limited to Dimercaptosuccinic acid
(DMSA), Dimercapto-propane sulfonate (DMPS), Alpha lipoic acid (ALA), Calcium
disodium versante (CaNa2-EDTA), Disodium EDTA, EDTA - TS, Dimercaprol (BAL). The
chelating agents are generally present at levels of from 0.001 to 0.5%, preferably from about
0.005 to 0.3%, more preferably from about 0.01%) to about 0.2% by weight based on the total
weight of the composition.
Various cosmeticaly and dermatologically suitable preservatives may be added to the instant
composition. These may be selected from the group consisting of but not restricted to
phenoxyethanol, para-hydroxybenzoic acid esters, also known as Parabens, for instance
methyl para-hydroxybenzoate (methyl paraben), ethyl para-hydroxybenzoate (ethyl paraben)
and propyl para-hydroxybenzoate (propyl paraben) and mixtures thereof; formaldehyde-
releasing agents, for instance imidazolidinylurea or diazolidinylurea; haloalkynyl carbamates,
for instance 3-iodo-2-propynyl butyl carbamate (IPBC); caprylyl glycol, also known as 1,2-
octanediol; sodium benzoate; N-(3-chloroallyl)-hexaminium chloride (or Quaternium-15);
polyhexamethylene biguanide hydrochloride (CTFA name: polyaminopropyl biguanide);
alkyltrimethylammonium bromides, for instance dodecyltrimethylammonium bromide,
myristyltrimethylammonium bromide and hexadecyltrimethylammonium bromide, and
mixtures thereof. The preservatives are generally present at levels of 0.005 to 3.0%,
preferably from about 0.01 to 2.0%, more preferably from about 0.05% to about 1.0% by
weight based on the total weight of the composition.
Free-radical scavengers and antioxidants for skin cleansing composition which may be
optionally added to the compositions of the instant invention include but are not restricted to
phosphonic acid derivatives such as ethylenediaminetetra (methylenephosphonic acid),
methylene phosphonic acid, methylenephosphonic acid and salts thereof, in particular the
sodium salts thereof; ethylenediaminetetraacetic acid and its salts, such as the sodium salt;
guanosine; superoxide dismutase; tocopherol (vitamin E) and its derivatives (acetate);
ethoxyquine; lactoferrin; lactoperoxidase, and nitroxide derivatives; superoxide dismutases;
glutathione peroxidase; plant extracts with free-radical-scavenging activity, such as the
aqueous extract of wheatgerm (Detoxiline), green tea, and mixtures thereof. The antioxidants
are generally present at levels of from 0.001 to 5%, preferably from about 0.005 to 2.0%,
more preferably from about 0.01. % to about 1.0% by weight based on the total weight of the
composition.
Colourants which may be optionally added to the compositions of the instant invention
include but are not restricted to beta carotene, carotenoids, D&C Red 30 Talc Lake, D&C
Red 7 Calcium Lake, D&C Red 34 Calcium Lake, mica/titanium dioxide/carmine pigments
(e.g., Clorisonne Red from Engelhard, Duocrome RB from Engelhard, Magenta from Rona,
Dichrona RB from Rona), Red 30 low iron, D&C Red Lake blend of Lake 27 & Lake 30,
FD&C Yellow 5 Lake, Pigment Blue 15, Pigment violet 23, Acid red 33, Food red 1, Kowet
titanium dioxide, yellow iron oxide, D&C Red 30 Lake, D&C Red 28 Lake, Cos Red Oxide
BC, Cos Iron Oxide Red BC, Cos Iron Oxide Yellow, Cos Iron Oxide Yellow BC, Euroxide
Red Unsteril, Euroxide Yellow Steril, Euroxide Red, Hydrophobic Euroxide Yellow,
Hydrophobic Euroxide Red, FD&C Yellow no. 5, FD&C Blue no. 1, D&C Yellow 6 lake,
D&C Yellow 5 Zr Lake, and mixtures thereof. The colourants are generally present at levels
of from 0.00001 to 0.1%, preferably from about 0.00002 to 0.08%, more preferably from
about 0.00005% to about 0.005% by weight based on the total weight of the composition.
Emotive ingredients which may be optionally added to the compositions of the instant
invention include but are not restricted to angelica extract, acerola extract, avocado extract,
hydrangea extract, althea extract, arnica extract, aloe extract, apricot extract, apricot kernel
extract, ginkgo biloba extract, fennel extract, turmeric extract, oolong tea extract, rose fruit
extract, echinacea leaf extract, Scutellaria root extract, phellodendron bark extract, Japanese
coptis extract, Prunus persica extract, barley extract, hypericum extract, white nettle extract,
watercress extract, Cymbopogon schoenanthus extract, orange extract, sea water dry matter,
seaweed extract, hydrolyzed elastin, hydrolyzed wheat powder, hydrolyzed silk, chamomile
extract, carrot extract, artemisia capillaris extract, glycyrrhiza extract, ginseng extract,
hibiscus sabdariffa extract, pyracantha fortuneana fruit extract, kiwi extract, cinchona extract,
cucumber extract, guanosine, gardenia extract, sasa albomarginata extract, sophora root
extract, menthol, cranberry extract, walnut extract, grapefruit extract, clematis extract,
chlorella extract, mulberry bark extract, sea minerals, gentian extract, black tea extract, yeast
extract, burdock root extract, rice bran fermentation extract, rice germ oil, ribes nigrum
extract, arctostaphylos Uva-Ursi extract, comfrey extract, collagen, vaccinium vitis-idaea
extract, asiasarum root extract, bupleurum root extract, umbilical cord extract, salvia extract,
saponaria extract, sasa-bamboo extract, Crataegus fruit extract, zanthoxylum fruit extract,
shiitake extract, rehmannia root extract, lithospermum root extract, perilla extract, tiliaceae
extract, filipendula extract, peony root extract, acorus calamus root extract, birch bark
extract, horsetail extract, ivy extract, hawthorn extract, sambucus extract, yarrow extract,
peppermint extract, sage extract, mallow extract, cnidium rhizome extract, swertia herb
extract, soy bean extract, jujube extract, wild thyme extract, green tea extract, clove extract,
Imperata cylindrical extract, citrus unshiu peel extract, Japanese angelica root extract,
calendula extract, peach kernel extract, bitter orange peel extract, houttuynia extract, tomato
extract, natto extract, ginseng extract, garlic extract, wild rose extract, hibiscus extract,
ophiopogon tuber extract, parsley extract, honey, witch hazel extract, parietaria extract,
isodonis herba extract, loquat extract, coltsfoot extract, petasites japonicus extract, hoelen
extract, butcherbroom extract, grape extract, propolis, sponge gourd extract, safflower
extract, linden extract, paeonia extract, hops extract, pine tree extract, horse chestnut extract,
lysichiton camtschatcense extract, mukurossi peel extract, balm mint extract, peach extract,
cornflower extract, eucalyptus extract, saxifrage extract, citrus junos extract, coix seed
extract, mugwort extract, lavender extract, apple extract, lettuce extract, lemon extract,
Chinese milk vetch extract, rose extract, rosemary extract, Roman chamomile extract and
royal jelly extract. The emotive ingredients are generally present at levels of from 0.001 to
5%, preferably from about 0.005 to 3.0%, more preferably from about 0.01. % to about 2.0%
by weight based on the total weight of the composition.
Various cosmetically acceptable vehicles may be used for the preparation of compositions as
per the instant invention. These may be selected from the group consisting of but not
restricted to aqueous diluents, alcohols, and combinations thereof. The vehicles will
generally be present at levels of from quantity sufficient (q.s) to 100 of the composition.
The amounts of the components are preferably at least 50% of anionic surfactants, 5 - 10% of
amphoteric surfactants, 1-5% of non ionic surfactant, 1-10% rheology modifier, 0.10% - 1%
of neutralizer, 1-5% of humectant, 1-5% soubilizer, compositions), 0.1% - 1.0% antioxidants (for skin cleansing compositions), colouring agents,
fragrance, emotive ingredients and water q.s.
Further water, EDTA - TS, Glycerine, SLES, TEA, Carbopol Aqua SF -1, CAPB, Decyl
Glucoside, PEG/PPG/ Diisostearate, Benzophenone, TEA, colourant, DMDM Hydantoin,
antioxidant, PEG-40 Hydrogenated Castor Oil, plant extracts, Trichlorocarbanilide are also
present in the composition.
Further preferred components include: at least 50% of anionic surfactants, 5 - 10% of
amphoteric surfactants, 1-5% of non ionic surfactant, 1-10% rheology modifier, about 1% of
pH adjuster, 1-5% of humectant, 1-5% soubilizer, colouring agents, fragrance, emotive ingredients and water q.s.
The personal cleansing composition prepared by process of present invention wherein the
density of the air bubbles present has been controlled is disclosed hereunder in form of a
preferred non limiting example which may be considered illustrative and non restrictive to
the scope of the present invention. These may be used as illustrative of the best mode of
operation.
Example 1
EDTA-TS 0.01 - 0.3 w/w %; Glycerine, 1.0 - 6.00 w/w %; SLES, 25 - 60.00 w/w %; TEA,
0.10 - 2.00 w/w %; Acrylate Copolymer, 5.00 - 12.00 w/w %; CAPB, 2.00 - 8.00 w/w %;
Alkyl Glucoside, 0.50 - 5.00 w/w %; PEG/PPG /3 Diisostearate, 0.10 - 3.00 w/w %;
Benzophenone - 4, 0.005 - 0.50 w/w %; Colours, 0.00001 - 0.001 w/w %; DMDM
Hydantoin, 0.05 - 0.50 w/w %; Fragrance, 0.25 - 3.00 w/w %; Antioxidant, 0.001 - 0.50
w/w %; PEG-40 Hydrogenated Castor Oil, 0.50 - 4.0 w/w %; Extracts, 0.0005 - 0.50 w/w
%;DM Water, qs-100%.
Example 2
EDTA - TS, 0.05 w/w %; Glycerine 6 w/w %; SLES , 65 w/w %; TEA, 2 w/w %; Acrylate
Copolymer, 12 w/w %; CAPB, 8 w/w %; Alkyl Glucoside, 5 w/w %; PEG/PPG/
Diisostearate, 2 w/w %; Benzophenone , 0.5 w/w %; TEA, 1 w/w %; Colourants, 0.001 w/w
%; DMDM Hydantoin, 0.5 w/w %; Fragrance, 2 w/w %; Antioxidant, 0.5 w/w %; PEG-40
Hydrogenated Castor Oil, 3 w/w %; Extracts, 0.5 w/w%; DM Water, qs - 100%.
Example 3
EDTA - TS, 0.05 w/w%; Glycerine, 1 w/w%; SLES, 25 w/w%; TEA, 0.1 w/w%; Acrylate
Copolymer, 5 w/w%; CAPB, 2 w/w%; Alkyl Glucoside, 0.5 w/w%; PEG/PPG /3
Diisostearate, 0.1 w/w%; Benzophenone - 4, 0.005 w/w%; TEA 0.15 w/w%; Colours,
0.00001 w/w%; DMDM Hydantoin, 0.05 w/w%; Fragrance 0.25 w/w%; Antioxidant, 0.003
w/w%; PEG-40 Hydrogenated Castor Oil, 0.5 w/w%; Extracts, 0.0005 w/w%; Water, qs -
100%.
Example 4
EDTA - TS, 0.1 w/w%; Glycerine, 3 w/w%; SLES, 45 w/w%; TEA, 0.9 w/w%; Acrylate
copolymer, 9 w/w%; CAPB, 5 w/w%; Alkyl Glucoside, 2.5 w/w%; PEG/PPG/ Diisostearate,
1 w/w%; Benzophenone, 0.025 w/w%; TEA 0.0125 w/w%; Colourant, 0.001 w/w%; DMDM
Hydantoin, 0.3 w/w%; Fragrance, 0.9 w/w%; Tinogard, 0.03 w/w%; PEG-40 Hydrogenated
Castor Oil, 2.25 w/w%; Extracts, 0.1 w/w%; Active ingredient, 0.3 w/vv%; DM Water, qs -
100%.
Process for preparation:
Hot water is added to a mixer followed by a premixed clear solution of EDTA-TS/EDTA -
DS powder and hot water. Thereafter glycerin is added to the mix. The solution is heated to
temperature below 100°C. Thereafter SLES (m(EO) of 1 to 20) is added to main mixer and
mixed thoroughly. To this TEA premixed with water is added and mixed. Thereafter, CAPB
is added to main mixer and mixed thoroughly. Then alkyl glucoside is added to main mixer
and mixed thoroughly. This is followed by the addition of PEG/ PPG -8/ 3 Diisostearate to
main mixer and mixed thoroughly until a clear transparent mass is formed. To the transparent
mass Benzophenone-4 premixed with water and TEA is added and mixed thoroughly. Colour
premixed with water is then added to main mixer and mixed thoroughly. Vacuum is applied
and maintained at 100 - 400 mmHg till the entire mass is completely clear of any aeration to
get completely de-aerated mass. Temperature of the solution is maintained belowl00°C and
acrylate copolymer premixed with water is added to the de-aerated mass to get a thickened
solution. The transfer is typically free of air-bubble. Mixing is continued under 100 - 400
mmHg vacuum for about 1 - 60 minutes till the entire thickened solution is clear of any
aeration. The solution is thereafter cooled with cooling water/chilled under continuous
vacuum to bring down the temperature to 40°C. Fragrance premixed with PEG-40
Hydrogenated Castor Oil and extracts are thereafter added followed by DMDM Hydantoin.
The resultant formulation is allowed to cool to room temperature to provide the personal
cleansing gel composition.
On visual examination no air bubbles are found in the formulation prepared by method stated
in the instant invention.
Example 5 : Consequence of altering the sequence of addition of neutralizer and rheology
modifier
Hot water is added to a mixer followed by a premixed clear solution of EDTA-TS/EDTA -
DS powder, commonly known as ethylenediaminetetraacetic acid, and hot water. Thereafter
glycerin is added to the mix. The solution is heated to temperature below 100°C. Thereafter
SLES, also known as sodium lauryl ether sulphate, (m(EO) of 1 to 20) is added to main
mixer and mixed thoroughly. To this TEA, also known as triethanolamine, premixed with
water is added and mixed. Thereafter, acrylate copolymer is added to main mixer and mixed
thoroughly for at least 15 minutes. Vacuum is applied and the mixture is cooled to about
50°C. Then cocoamido propyl betaine (CAPB) and alkyl glucoside are added to main mixer
one by one and mixed thoroughly. This is followed by the addition of PEG/ PPG -8/ 3
Diisostearate to main mixer and mixed thoroughly until a clear transparent mass is formed.
To the transparent mass Benzophenone - 4 premixed with water and TEA is added and mixed
thoroughly. Colour premixed with water is then added to main mixer and mixed thoroughly.
The solution is thereafter cooled with cooling water/chilled to bring down the temperature to
40°C. Fragrance premixed with PEG-40 Hydrogenated Castor Oil and extracts are thereafter
added followed by DMDM Hydantoin. The resultant formulation is allowed to cool to room
temperature.
On visual inspection air bubbles were seen
It was thus found that if the sequence of addition of ingredients in particular that of the
neutralizer and rheology modifiers is altered or reversed, air bubbles reappeared even though
all the ingredients and other process conditions are maintained.
Other variations as may be obvious to one skilled in the art may be made in compounds,
compositions, and methods described herein without departing from the essential features of
the invention and therefore must be held non restrictive to the scope of the instant invention.
The embodiments of the invention specifically illustrated herein are exemplary only and may
not in any way be intended as limitations in its scope.
WE CLAIM:
1. A process for preparing a personal cleansing gel composition, the process comprising:
a) preparing a solution comprising a chelating agent, a humectant and a hot diluent;
b) heating the solution to a temperature below 100°C and adding a neutralizer and at
least one of a surfactant, a conditioner, or a combination thereof, to provide a
transparent mass;
c) adding to the transparent mass a UV absorber and a colorant followed by de-aeration;
d) adding a solution of rheology modifier to the de-aerated mass to provide a thickened
solution;
e) cooling the thickened solution and optionally adding at least one of preservatives,
fragrances, emotive ingredients, solubilizers, active ingredients, free-radical
scavengers and antioxidants to provide the personal cleansing gel composition,
wherein the rheology modifier is added after the addition of neutralizer and under
continued de-aeration conditions.
2. The process of claim 1, wherein the rheology modifier is selected from the group
comprising polysaccharides, gums, fine solids, synthetic polymers and copolymers, and
mixtures thereof.
3. The process of claim 1, wherein the neutralizer is selected from the group comprising
organic and inorganic neutralizers.
4. The process of claim 1, wherein the humectant is selected from the group comprising
sorbitol, glycerin, hexanetriol, propylene glycol, hexylene glycol and the like, polyethylene
glycol, sugars and starches, sugar and starch derivatives, D-panthenol, hyaluronic acid,
lactamide monoethanolamine, acetamide monoethanolamine, and mixtures thereof.
5. The process of claim 1, wherein the chelating agent is selected from the group comprising
Dimercaptosuccinic acid (DMSA), Dimercapto-propane sulfonate (DMPS), Alpha lipoic
acid (ALA), Calcium disodium versante (CaNa2-EDTA), Disodium EDTA, EDTA - TS,
Dimercaprol (BAL) and mixtures thereof.
6. The process of claim 1, wherein the diluent is selected from the group comprising aqueous
diluents, alcoholic diluents and combinations thereof.
7. The process of claim 1, wherein the surfactant is selected from the group comprising
anionic surfactants, non-ionic surfactants and amphoteric surfactants.
8. The process of claim 1, wherein the conditioner is selected from the group comprising
stearate, olive oil, water, glycerin, urea, lactic acid, sorbitol, lanolin, esters and oils,
silicones, Dimethicone PEG phosphate, PEGs, PPGs, isostearate, diisostearates, PEG/PPG-
dimethicones, polyquaternium and mixtures thereof.
9. The process of claim 1, wherein the UV absorber is selected from the group comprising p-
aminobenzoic acid UV absorbers, anthranilic acid UV absorbers, salicylic acid UV
absorbers, cinnamic acid UV absorbers, benzophenone UV absorbers, sugar UV absorbers
and mixtures thereof.
10. The process of claim 1, wherein the colorant is selected from the group comprising
carotenoids, Pigments, Dyes, Acid red, Food red, Kowet titanium dioxide, FD&C Yellow,
FD&C Blue, D&C Red, D&C Red Lake, Cos Red Oxide BC, Cos Iron Oxide Red BC, Cos
Iron Oxide Yellow, yellow iron oxide, Cos Iron Oxide Yellow BC, Euroxide Red Unsteril,
Euroxide Yellow Steril, Euroxide Red, Hydrophobic Euroxide Yellow, Hydrophobic
Euroxide Red, and mixtures thereof
11. The process of claim 1, wherein the preservative is selected from the group comprising
hydantoins, parabens, caprylyl glycols, formaldehyde-releasing agents, haloalkynyl
carbamates and mixtures thereof.
12.The process of claim 1, wherein the fragrance is selected from the group comprising
hydrocarbons, aliphatic alcohols, and their acetals aliphatic ketones and oximes thereof,
aliphatic sulfur-containing compounds, aliphatic nitriles, aliphatic carboxylic acids and
esters thereof, acyclic terpene alcohols, as well as formates, acetates, propionates,
isobutyrates, butyrates, acyclic terpene aldehydes and ketones, cycloaliphatic alcohols,
cycloaliphatic ethers, cyclic ketones, cycloaliphatic aldehydes, cycloaliphatic ketones, esters
of cyclic alcohols, esters of cycloaliphatic carboxylic acids, araliphatic alcohols, esters of
araliphatic alcohols and aliphatic carboxylic acids, aromatic and araliphatic aldehydes,
aromatic and araliphatic ketones, aromatic and araliphatic carboxylic acids and esters thereof,
Nitrogen-containing aromatic compounds, phenols, phenyl ethers and phenyl esters,
heterocyclic compounds, lactones and mixtures thereof.
13. The process of claim 1, wherein the emotive ingredient is selected from the group
comprising acerola extract, avocado extract, sea water dry matter, seaweed extract,
peppermint extract, peach extract, carrot extract, artemisia capillaris extract, lemongrass
extract, ginseng extract, menthol, Uva-Ursi extract, parsley extract, honey, Prunus persica
extract, barley extract, mulberry bark extract, rice germ oil, ribes nigrum extract, turmeric
extract, oolong tea extract and mixtures thereof.
14. The process of claim 1, wherein the free radical scavenger and antioxidant is selected
from the group comprising phosphonic acid derivatives, vitamin derivatives, plant extracts,
enzyme derivatives and mixtures thereof.
15. The process of claim 1, wherein the solubilizer is selected from the group comprising
propanediols, butanediols, glycerol, polyethylene glycol 400, tetrahydrofurfuryl alcohol,
diethylene glycol monoethyl ether, diethyltoluamide, monoisopropylideneglycerol,
diisopropyl adipate, isopropyl myristate, vegetable oils, hydrogenated castor oil, animal
oils, alkyl glyceryl ethers, hydrocarbons and mixtures thereof.
16. The process of claim 1, wherein the active ingredient is selected from the group
comprising whitening components, anti-inflammatory agents, aging preventives, slimming
agents, tonic agents, circulation promoters, drying agents, cooling agents, warming agents,
vitamins, amino acids, wound healing promoters, irritation relaxants, analgesics, cell
activators, skin colorants, enzyme components and mixtures thereof.
17. The process of preparation of the personal cleansing gel composition substantially as
herein before described in any one of the examples.

A process for preparing a personal cleansing gel composition, the process comprising
preparing a solution comprising a chelating agent, a humectant and a hot diluent; heating the
solution to a temperature below 100°C and adding a neutralizer and at least one of a
surfactant, a conditioner, or a combination thereof, to provide a transparent mass; adding to
the transparent mass a UV absorber and a colorant followed by de-aeration; adding a solution
of rheology modifier to the de-aerated mass to provide a thickened solution; cooling the
thickened solution and optionally adding at least one of preservatives, fragrances, emotive
ingredients, solubilizers, active ingredients, free-radical scavengers and antioxidants to
provide the personal cleansing gel composition, wherein the rheology modifier is added after
the addition of neutralizer and under continued de-aeration conditions.

Documents:

http://ipindiaonline.gov.in/patentsearch/GrantedSearch/viewdoc.aspx?id=fP0VK0hzRmiyGZgfd6iGfw==&loc=wDBSZCsAt7zoiVrqcFJsRw==

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Patent Number

278021

Indian Patent Application Number

1324/KOL/2007

PG Journal Number

52/2016

Publication Date

16-Dec-2016

Grant Date

08-Dec-2016

Date of Filing

25-Sep-2007

Name of Patentee

ITC LIMITED

Applicant Address

37, J.L.NEHRU ROAD, KOLKATA

Inventors:

#	Inventor's Name	Inventor's Address
1	BALAKRISHNAN, K.P.	ITC LIMITED, ITC R & D CENTRE, PEENYA PHASE-I, BANGALORE
2	NAGESHWAR, JYOTI	ITC R & D CENTRE, PEENYA PHASE-I, BANGALORE-560058

PCT International Classification Number

C11D17/08; A61K7/50 A61K8/00; A61K8/04;

PCT International Application Number

N/A

PCT International Filing date

PCT Conventions:

#	PCT Application Number	Date of Convention	Priority Country
1			NA