Title:
SHEATH-CORE COMPOSITE YARN AND FABRIC
Document Type and Number:
WIPO Patent Application WO/2020/262511
Kind Code:
A1
Abstract:
A sheath-core composite yarn wherein: a sheath part polymer is a polyamide and a core part polymer is a polyether ester amide copolymer; the time to the start of heat generation due to oxidative heat generation is 100 hours or more if subjected to a heat treatment at 150°C; and the change in the degree of yellowing (YI) after a treatment at 70°C for 8 hours is 10 or less. The present invention provides a moisture-absorbing sheath-core composite yarn which has moisture absorbing/releasing properties, while being free from yellowing. The present invention also provides a moisture-absorbing sheath-core composite yarn which has excellent yellowing resistance, while maintaining a soft texture, good durability and moisture absorbing/releasing properties even after repeated washing and drying.
Inventors:
YOSHIOKA DAISUKE (JP)
KURIBAYASHI TAKAHIRO (JP)
KONO TAKEAKI (JP)
KURIBAYASHI TAKAHIRO (JP)
KONO TAKEAKI (JP)
Application Number:
PCT/JP2020/024943
Publication Date:
December 30, 2020
Filing Date:
June 25, 2020
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
D01F8/12
Domestic Patent References:
| WO2017098861A1 | 2017-06-15 |
Foreign References:
| JP2019502036A | 2019-01-24 | |||
| JP2018076613A | 2018-05-17 | |||
| JPH108324A | 1998-01-13 |
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