Low shrinkage, uncrimped short-cut fibers for use in wet laid non-woven products and method for making same
US6472066B1 · kind B1 · utility
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14References
7Claims
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Key dates
| Filing date | Feb 5, 2001 |
| Grant date | Oct 29, 2002 |
| Priority date | — |
| Expiry date | Apr 9, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2969
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Low shrinkage, short-cut polyethylene terephthalate fiber exhibiting dispersibility suitable for incorporation into wet laid non-woven products is produced through the use of steam-annealing. The preferred fibers exhibit a hot air shrinkage value of less than about 10 percent, have a length of less than 3 inches, and a dispersion index of less than 5.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.