Dual capillary spinneret for production of homofilament crimp fibers
US6830640B2 · kind B2 · utility
1Cited by
30References
33Claims
0Family size
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Key dates
| Filing date | Sep 10, 2002 |
| Grant date | Dec 14, 2004 |
| Priority date | — |
| Expiry date | Mar 23, 2023 |
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.