Title:
SHORT POLYPROPYLENE FIBER
Document Type and Number:
WIPO Patent Application WO/2023/112850
Kind Code:
A1
Abstract:
This short polypropylene fiber is characterized by: being a short polymer alloy fiber having a sea-island structure in which a polypropylene (A) is a sea component and a thermoplastic resin (B) having a polar functional group is an island component; having, exposed on the surface thereof, the thermoplastic resin (B) that has a polar functional group; and having a fiber length of 20-100 mm and a single fiber fineness of 0.5-3.5 dtex. Provided is a short polypropylene fiber that has improved abrasion resistance while having characteristics of polypropylene, that has excellent texture, and that can be suitably used for a spun yarn.
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Inventors:
NAGAO MASASHI (JP)
SATO KIRITA (JP)
MASUDA MASATO (JP)
SATO KIRITA (JP)
MASUDA MASATO (JP)
Application Number:
PCT/JP2022/045425
Publication Date:
June 22, 2023
Filing Date:
December 09, 2022
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
D01F6/46; D01F8/06; D01F8/14; D02G3/04
Domestic Patent References:
| WO2017154665A1 | 2017-09-14 | |||
| WO2018079152A1 | 2018-05-03 |
Foreign References:
| JP2008538391A | 2008-10-23 | |||
| JPH06248514A | 1994-09-06 | |||
| JP2007308830A | 2007-11-29 | |||
| US5534335A | 1996-07-09 |
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