Dual capillary spinneret for production of homofilament crimp fibers
US6446691B1 · kind B1 · utility
7Cited by
9References
5Claims
0Family size
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Key dates
| Filing date | Dec 21, 2000 |
| Grant date | Sep 10, 2002 |
| Priority date | — |
| Expiry date | Dec 22, 2020 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD04H3/16
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Robust homofilament fibers are meltspun from a differently shaped dual capillary spinneret design to induce differential fiber morphology to produce crimping. Crimping may further be aided by quenching and drawing of the fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.