| 摘要 |
Provided is a hair dye comprising 0.1 to 3.0% by weight of at least one of aqueous acid dyes and a resin comprising a terpolymer constituted from a vinyl cyclic amide represented by following Formula (I), an acrylic acid derivative represented by following Formula (II) and a quaternary derivative of acrylic acid represented by following Formula (III), wherein a content of the resin is 0.1 to 2.5% by weight in terms of a solid content; and the hair dye further comprises 1.0 to 20% by weight of a hair dyeing auxiliary agent, 20 to 60% by weight of a lower alcohol and 20 to 60% by weight of water and has a pH of 2 to 4: wherein, n is an integer of 3 to 6, and R represents a hydrogen atom or an alkyl group having 1 to 5 carbon atoms; P is an oxygen atom or NR2; R1, R2, R3 and R4 each are a hydrogen atom or an alkyl group having 1 to 5 carbon atoms; R5 represents an alkylalkylene group having 2 to 16 carbon atoms; R6 is an alkyl group having 9 to 24 carbon atoms; and M represents a halide, tosylate or phosphoric acid anion.
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