Mixed filament yarn of polyester filaments and nylon filaments
US5364701A · kind A · utility
11Cited by
19References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1993 |
| Grant date | Nov 15, 1994 |
| Priority date | — |
| Expiry date | Mar 23, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2931
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Drawing, especially cold-drawing, or hot-drawing, or other heat-treatments, of spin-oriented crystalline polyester filaments, and particularly polyester feed yarns, that have been prepared by spinning at speeds of, e.g., 4 km/min, and have low shrinkage and no natural draw ratio in the conventional sense, provides useful technique for obtaining uniform filaments of desired denier and thereby provides improved flexibility to obtain filaments and yarns mixed with nylon filaments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.