False-twisted low-fused polyester yarn and multilayer-structure woven or knitted fabric
US9957647B2 · kind B2 · utility
0Cited by
38References
17Claims
0Family size
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Key dates
| Filing date | Jun 21, 2013 |
| Grant date | May 1, 2018 |
| Priority date | — |
| Expiry date | Aug 7, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/431
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A false-twisted low-fused polyester yarn has a non-untwisted part having a twist in a false-twist direction, an over-untwisted part having a twist in a direction opposite to the false-twist direction, and a non-twisted crimped part having no twist, alternately disposed along the longitudinal direction of the yarn, the average length of the non-untwisted part being no more than 7 mm, the average length of the over-untwisted part being at least 7 mm, and the degree of fusion-bonding in the yarn longitudinal direction being no more than 50%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.