Process for the production of cellulose fibres
US5601771A · kind A · utility
20Cited by
3References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 5, 1995 |
| Grant date | Feb 11, 1997 |
| Priority date | — |
| Expiry date | Jun 5, 2015 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01D5/088
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention is concerned with a process for the production of cellulose fibres, wherein a solution of cellulose in an aqueous tertiary amine-oxide is extruded into filaments through spinning holes of a spinneret and the extruded filaments are conducted across an air gap into a substantially aqueous precipitation bath, characterized in that the extruded filaments, while being conducted across the air gap, are contacted with an aliphatic alcohol which is present exclusively in gaseous state. The process according to the invention produces cellulose fibres having a very reduced tendency to fibrillation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.