Dual nip open-end friction spinning
US4727716A · kind A · utility
2Cited by
11References
47Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 7, 1986 |
| Grant date | Mar 1, 1988 |
| Priority date | — |
| Expiry date | Jul 7, 2006 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01H4/16
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
To improve integration of fibers into a yarn end and thereby improve yarn quality, fibers are directed to a feeding nip defined on an opposite side of a pair of friction rollers forming a spinning nip. The fibers are directed out of the feeding nip, passed between the friction rollers, and forwarded into the spinning nip. One of the friction rollers may constitute a conveying roller which exerts greater force upon the fibers than the other roller to securely convey fibers through a gap between the rollers and into the spinning nip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.