Product and method of producing a smooth polyester yarn
US4950539A · kind A · utility
3Cited by
4References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 9, 1988 |
| Grant date | Aug 21, 1990 |
| Priority date | — |
| Expiry date | Jun 9, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2913
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of producing a smooth, cold-drawn multifilament yarn from a polyester POY comprising cold-drawing of the polyester POY to a draw ratio of at least 1.6 and subsequent hot-relaxing the polyester POY under an over-feed of 10 to 20%, and a polyester yarn produced by this method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.