Process for manufacturing an elastic bulk yarn
US5313776A · kind A · utility
6Cited by
14References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 20, 1991 |
| Grant date | May 24, 1994 |
| Priority date | — |
| Expiry date | Nov 20, 2011 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD02G1/0286
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A friction-textured elastic yarn is prepared by twisting a single-component multifilament melt-spinnable polymer yarn having an initial modulus of 80 to 150 cN/tex and a melting point of at least 200.degree. C. at a speed of at least 200 m/min, the thus twisted yarn is heat-set at 160.degree. to 190.degree. C. to produce a fixated yarn, and the fixated yarn is friction-textured at a pretension of 0.5 to 3.0 cN/tex.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.