US 12,274,320 B2
Core-sheath composite fiber for artificial hair, headwear product including same, and production method for same
Yurina Ino, Osaka (JP)
Assigned to KANEKA CORPORATION, Osaka (JP)
Filed by KANEKA CORPORATION, Osaka (JP)
Filed on Aug. 8, 2022, as Appl. No. 17/883,100.
Application 17/883,100 is a continuation of application No. PCT/JP2021/000048, filed on Jan. 5, 2021.
Claims priority of application No. 2020-036162 (JP), filed on Mar. 3, 2020.
Prior Publication US 2022/0400799 A1, Dec. 22, 2022
Int. Cl. A41G 3/00 (2006.01); D01D 5/10 (2006.01); D01F 1/06 (2006.01); D01F 8/12 (2006.01); D01F 8/14 (2006.01)
CPC A41G 3/0083 (2013.01) [D01D 5/10 (2013.01); D01F 1/06 (2013.01); D01F 8/12 (2013.01); D01F 8/14 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A core-sheath conjugate fiber for artificial hair comprising:
a core part; and
a sheath part,
wherein:
the core-sheath conjugate fiber for artificial hair is a colored fiber,
the core part has a lightness L* of 10 or less in a CIE1976 color space, and
the sheath part has a lightness L* of 15 or more in the CIE1976 color space.