| 摘要 |
PURPOSE:To obtain a hair dye, excellent in dyeability, good in durability and hardly falling off even by washing the hair by combining a specific (co)polymer with a hair dye. CONSTITUTION:The objective substance obtained by combining a (co)polymer having dialkyldi(meth)allylammonium salt units expressed by formula I and/or II (R1 is H or methyl; R2 is 1-18C alkyl; X is counter anion of acid) and, as necessary, other monomer units and a hair dye consisting of an acid dye. The weight ratio of the hair dye:(co)polymer thereof is 100:10-100:700. The objective substance is prepared by suitably mixing a normally used surfactant, antioxidant, thickening agent, hair tonic, perfume, etc. The hair dye can be prepared in the form of liquid, creamy milky lotion, shampoo, jelly, paste, hair lacquer, spray, etc. |
