	US 11,873,583 B2
	Fiber for artificial hair and head accessory product
Atsushi Horihata, Kamakura (JP); and Atsushi Takei, Kamakura (JP)
Assigned to DENKA COMPANY LIMITED, Tokyo (JP)
Appl. No. 17/312,985
Filed by DENKA COMPANY LIMITED, Tokyo (JP)
PCT Filed Nov. 20, 2019, PCT No. PCT/JP2019/045394 § 371(c)(1), (2) Date Jun. 11, 2021, PCT Pub. No. WO2020/121759, PCT Pub. Date Jun. 18, 2020.
Claims priority of application No. 2018-234894 (JP), filed on Dec. 14, 2018.
Prior Publication US 2022/0074079 A1, Mar. 10, 2022
Int. Cl. D01F 6/60 (2006.01)

CPC D01F 6/60 (2013.01) [D10B 2331/02 (2013.01); D10B 2503/08 (2013.01)]

5 Claims

1. A fiber for artificial hair composed of a resin composition containing an aliphatic polyamide,

wherein a weight average molecular weight Mw of a dissolved component obtained when the fiber for artificial hair is dissolved in hexafluoroisopropanol is 46,000 or more and less than 65,000, and

wherein the resin composition contains an aliphatic polyamide (A) having a weight average molecular weight of 70,000 or more and 150,000 or less and an aliphatic polyamide (B) having a weight average molecular weight of 40,000 or more and or less.