| Title of Invention | MANUFACTURING REGENERATED CELLULOSE FIBER BY ZINC FREE VISCOSE PROCESS. |
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| Abstract | (67) Ab 9tract! A process for the production of rayon fibers is disclosed. The viscose solution is spun into a spinbath which is acidic in c^^-acter but has no z<fnc salt liko conventional bath3. Xhe spin bath contains sulphuric ■♦jcid aluminium sulphate and sodi^ sulphate, Tho spinning is at temperatures of 3^o G. Usual stretching and post spinning operations arc carried out a3 nscossory. Tho regenerated cellulose fibers.' obtained are of novel cross-section3, namely of »C» c^a3 soction not achieved ever before. The fibers exhibit increased lustre and softn^3S# smz. (67) Ab 9tract! A process for the production of rayon fibers is disclosed. The viscose solution is spun into a spinbath which is acidic in c^^-acter but has no z<fnc salt liko conventional bath3. Xhe spin bath contains sulphuric ■♦jcid aluminium sulphate and sodi^ sulphate, Tho spinning is at temperatures of 3^o G. Usual stretching and post spinning operations arc carried out a3 nscossory. Tho regenerated cellulose fibers.' obtained are of novel cross-section3, namely of »C» c^a3 soction not achieved ever before. The fibers exhibit increased lustre and softn^3S# smz. |
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80-BOM-1991-CANCELLED PAGES.pdf
80-BOM-1991-CORRESPONDENCE(IPO).pdf
80-BOM-1991-CORRESPONDENCE(RECEIVED).pdf
80-BOM-1991-FORM 2(COMPLETE).pdf
80-BOM-1991-FORM 2(GRANTED).pdf
80-BOM-1991-FORM 2(PROVISIONAL).pdf
80-BOM-1991-SPECIFICATION(AMENDED).pdf
| Patent Number | 173872 | |||||||||
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| Indian Patent Application Number | 80/BOM/1991 | |||||||||
| PG Journal Number | 45/2012 | |||||||||
| Publication Date | 09-Nov-2012 | |||||||||
| Grant Date | 24-Feb-1995 | |||||||||
| Date of Filing | 19-Mar-1991 | |||||||||
| Name of Patentee | INDUBHAI HEMCHAND PAREKH | |||||||||
| Applicant Address | BIRLAGRAM, NAGDA(M.P.), INDIA. | |||||||||
Inventors:
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| PCT International Classification Number | D01F2/06 | |||||||||
| PCT International Application Number | N/A | |||||||||
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