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Title:
WATER-REPELLENT POLYACRYLONITRILE-BASED SYNTHETIC HAIR FIBER, METHOD FOR PRODUCING SAME, AND HEADDRESS PRODUCT
Document Type and Number:
WIPO Patent Application WO/2023/190759
Kind Code:
A1
Abstract:
Provided is a polyacrylonitrile-based synthetic hair fiber that is superior in water repellency and texture, a method for producing the fiber, and a headdress product comprising the fiber.　The present invention employs a water-repellent polyacrylonitrile-based synthetic hair fiber that contains a polyacrylonitrile-based synthetic fiber (A), in which: a water repellent (B) is attached to the polyacrylonitrile-based synthetic fiber (A); the water repellent (B) does not have a fluoro group; the water repellent (B) contains at least one selected from a group consisting of a dendrimer-based water repellent (B-1), an alkyl urethane-based water repellent (B-2), and condensation reaction type polydimethylsiloxane (B-3); the dendrimer-based water repellent (B-1) has an ester and/or urethane bond; the alkyl urethane-based water repellent (B-2) has a long-chain hydrocarbon side chain and is non-dendrimer-based; the condensation reaction type polydimethylsiloxane (B-3) has, at both terminals, a hydroxyl group, an organic group having a hydroxyl group, or an organic group capable of generating a hydroxyl group; and the amount of the water repellent (B) attached is between 0.05 mass% and 1.0 mass% both inclusive with respect to a total mass of the polyacrylonitrile-based synthetic fiber (A).

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Inventors:
KOBASHI TAKAAKI (JP)
TAOKA NOBUTAKA (JP)
TANAKA TAKESHI (JP)
Application Number:
PCT/JP2023/012982
Publication Date:
October 05, 2023
Filing Date:
March 29, 2023
Export Citation:
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Assignee:
KANEKA CORP (JP)
International Classes:
D06M15/564; A41G3/00; C09K3/18; D06M13/463; D06M13/467; D06M15/21; D06M15/507; D06M15/572; D06M15/643; D06M101/28
Domestic Patent References:
WO2021132172A12021-07-01
Foreign References:
JPH053969A1993-01-14
JP6937966B12021-09-22
JPH0397971A1991-04-23
US5496401A1996-03-05
JPH09228255A1997-09-02
Attorney, Agent or Firm:
NIIYAMA Yuichi et al. (JP)
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