Process for the production of fine denier cellulose acetate fibers
US5269996A · kind A · utility
4Cited by
8References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 14, 1992 |
| Grant date | Dec 14, 1993 |
| Priority date | — |
| Expiry date | Sep 14, 2012 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F2/30
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method for producing ultra fine denier cellulose acetate fibers that entails spinning a spinning solution containing adequately high amounts of cellulose acetate in acetone wherein the cellulose acetate has a falling ball viscosity of 15 to 70 seconds wherein the spinning is conducted through spinnerettes having holes that have a diameter of less than 36 microns followed by drying at a temperature of about 50.degree. to 80.degree. C. at a draw ratio of 0.9 to 1.7.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.