FIBER BUNDLE FOR ARTIFICIAL HAIR, AND HEADWEAR PRODUCT COMPRISING SAME

Title:

FIBER BUNDLE FOR ARTIFICIAL HAIR, AND HEADWEAR PRODUCT COMPRISING SAME

Document Type and Number:

WIPO Patent Application WO/2023/105889

Kind Code:

A1

Abstract:

One or more embodiments of the present invention relate to a fiber bundle for artificial hair, the fiber bundle comprising two or more kinds of core-sheath composite fibers having different core/sheath ratios, wherein: each core-sheath composite fiber comprises a core part and a sheath part; and the core/sheath ratio is expressed by the area ratio of the core part to the sheath part. With respect to each core-sheath composite fiber, the core part is configured from a polyester resin composition that contains a polyester resin; and the sheath part is configured from a polyamide resin composition that contains a polyamide resin. The standard deviation of the ratio of the core part cross-sectional area to the fiber cross-sectional area of the core-sheath composite fibers that constitute the fiber bundle for artificial hair is 0.15 or more. Consequently, the present invention provides: a fiber bundle for artificial hair, the fiber bundle containing core-sheath composite fibers and having texture and appearance similar to those of human hair as well as good curl setting properties and durability in use; and a headwear product which comprises this fiber bundle for artificial hair.

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Inventors:

INO YURINA

Application Number:

PCT/JP2022/035476

Publication Date:

June 15, 2023

Filing Date:

September 22, 2022

Export Citation:

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Assignee:

KANEKA CORP (JP)

International Classes:

D01F8/14; A41G3/00; D02G3/04; D02G3/44

Domestic Patent References:

WO2010090191A1	2010-08-12
WO2007094289A1	2007-08-23
WO1997028299A1	1997-08-07

Foreign References:

JPH03185103A	1991-08-13
JPH10201960A	1998-08-04
JPH0860427A	1996-03-05

Attorney, Agent or Firm:

IKEUCHI & PARTNERS (JP)

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