Fiber process
US4115907A · kind A · utility
4Cited by
4References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 9, 1977 |
| Grant date | Sep 26, 1978 |
| Priority date | — |
| Expiry date | Sep 9, 1997 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD02G1/12
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A process and apparatus for the continuous production of heat-set, crimped, thermoplastic filaments by passing a tow of filaments through a stuffer box crimper and then a heat setting device attached to the exit of the crimper. The tow in the crimping chamber is cooled to a temperature not exceeding 100.degree. C in order to separate the heat setting and crimping processes, whereby the crimp ratio may be varied by adjusting the temperature of the tow in the crimping chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.