Title of Invention

A METHOD FOR PACKAGING COTTON BY WRAPPING TO FORM COTTON BALLS AND COTTON BALLS COVERED WITH SAID WRAPPER

Abstract

The present invention relates to a method for packaging cotton by wrapping to form cotton balls in sacks or in fibre webs, characterized in that the wrapper is made of a cotton nonwoven of 80 to 150 g/m2 preferably 100 to 120 g/m2, which wrapper is compacted over the surface by means of hydrodynamic needling followed by drying the wrapper and manufacturing it for the packaging of cotton. The present invention also relates to cotton balls or the like covered with a wrapper made of 'cotton.

Full Text

WO 2004/035387 METHOD FOR PACKAGING COTTON, AND PACKAGED COTTON BALLS Cotton harvested from plants must be put into containers and processed to form cotton balls. It is known to manufacture the sacks required for this purpose, or at least wrappers, from inexpensive synthetic fibres such as polypropylene. After harvesting, the cotton is put into these synthetic fibre sacks, the cotton balls or the like are dispatched and are fed to machines in different countries for spinning thread or for producing nonwovens. For this purpose the balls must be released from the sacks or the like to prevent the pure cotton from mixing with synthetic fibres. Because of negligence, in some cases this is not carried out at all or only partly so that the subsequent cotton products are frequently impure. The object of the invention is to develop a method and a product which can eliminate this problem. Starting from the usual method for packaging cotton fibres by wrapping, that is to form cotton balls in sacks or by means of fibre webs, the invention consists in forming a material web made of cotton, compacting this over the surface and manufacturing this web for packaging cotton. Since a packaging material should always be cheap and the cotton is a high-quality expensive product, it is logical if the packaging web is made of recycled cotton. Binder-free needling, preferably continuous water needling can be used for compacting treatment of the packaging web. The cotton ball suitable for dispatch now consists only of cotton. The packaging wrapper should consist of a web formed from a nonwoven of 80-150 g/m2. The packaging web was the compacted by means of needling, preferably water needling. The balls can then be supplied with the packaging to the carding machine or similar nonwoven forming devices such as the device used to form nonwovens by the air laying method. CLAIMS 1. A method for packaging cotton by wrapping to form cotton balls in sacks or by means of fibre webs, characterised in that a material web made of cotton is formed/ said web is compacted over the surface and is manufactured for packaging of cotton. 2. The method according to claim 1, characterised in that the material web is made of recycled cotton. 3. The method according to claim 1 or 2, characterised in that the compaction is produced by means of needling. 4. The method according to claim 3, characterised in that the compaction is produced by means of hydrodynamic needling followed by drying the material web. 5. Cotton balls or the like, covered with a wrapper, characterised in that the wrapper is made of cotton, preferably cotton residue. 6. The cotton balls, according to claim 5, characterised in that the wrapper is made of a needled cotton nonwoven of 80 to 150 g/m2, preferably 100-200 g/m2. 7. The cotton balls according to claim 5 or 6, characterised in that the wrapper of the cotton ball consists of a water-needled material web.

Documents:

612-chenp-2005 abstract duplicate.pdf

612-chenp-2005 claims duplicate.pdf

612-chenp-2005 description (complete) duplicate.pdf

612-chenp-2005-abstract.pdf

612-chenp-2005-claims.pdf

612-chenp-2005-correspondnece-others.pdf

612-chenp-2005-correspondnece-po.pdf

612-chenp-2005-description(complete).pdf

612-chenp-2005-form 1.pdf

612-chenp-2005-form 3.pdf

612-chenp-2005-form 5.pdf

612-chenp-2005-form18.pdf

612-chenp-2005-pct.pdf