Process of making cellulose fibres
US5543101A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 4, 1995 |
| Grant date | Aug 6, 1996 |
| Priority date | — |
| Expiry date | Jan 4, 2015 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD04H3/16
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Disclosed is a process for producing cellulose fibers having a decreased tendency to fibrillate. The process comprises the steps of extruding a solution of cellulose in a tertiary amine-oxide through spinning holes of a spinneret to form cellulose filaments, conducting the extruded cellulose filaments across an air gap of greater than 30 mm, and introducing the cellulose filaments into a precipitation bath. The process is carried out in a way that the mathematical expression 51.4+0.033.times.D+1937.times.M.sup.2 -7.18.times.T-0.094.times.L-2.50.times.F+0.045.times.F.sup.2, does not exceed the number 10. In the mathematical expression, D is the spinning hole diameter in .mu.m, M is the dope output per hole in g/min, T is the titer of the individual filament in dtex, L is the length of the air gap in mm and F is the humidity of the air in the air gap in g of water/kg of air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.