Process for preparing viscose rayon
US4324751A · kind A · utility
1Cited by
8References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 5, 1979 |
| Grant date | Apr 13, 1982 |
| Priority date | — |
| Expiry date | Nov 5, 1999 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F2/06
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
This invention relates to a process for producing crimped yarn or fibers which comprises spinning filaments from a spinning jet into a spinning bath and simultaneously subjecting said material to ultra-sonic sound vibrations so as to impart extremely fine and regular crimps onto said filament formed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.