Title:
CORE-SHEATH COMPOSITE FIBER FOR ARTIFICIAL HAIR, HEADDRESS PRODUCT INCLUDING SAME, AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/166262
Kind Code:
A1
Abstract:
The present invention pertains to a core-sheath composite fiber for artificial hair which, in one or more embodiments, comprises a core part and a sheath part and is characterized in that: the core-sheath composite fiber for artificial hair has a flat multi-lobar cross-sectional shape; the area ratio of the core to sheath (core:sheath) is 2:8 to 9:1; and the viscosity ratio a/b of the melt viscosity a of a core part resin composition to the melt viscosity b of a sheath part resin composition is 2.0-7.0. The present invention provides: a core-sheath composite fiber for artificial hair which has a texture similar to that of human hair, excellent separation resistance at room temperature, and good combability; a headdress product including the same; and a production method therefor.
Inventors:
YASUTOMO NORIKAZU
SAKAMOTO GENTA
FUJINAGA HIROSHI
SAKAMOTO GENTA
FUJINAGA HIROSHI
Application Number:
PCT/JP2020/001144
Publication Date:
August 20, 2020
Filing Date:
January 16, 2020
Export Citation:
Assignee:
KANEKA CORP (JP)
International Classes:
A41G3/00; D01F8/14
Domestic Patent References:
| WO2018179803A1 | 2018-10-04 | |||
| WO2017187843A1 | 2017-11-02 |
Attorney, Agent or Firm:
IKEUCHI & PARTNERS (JP)
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