| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for treating a dyed keratin fiber, for the purpose of protecting coloration of the keratin fiber, and to provide a method for using a specific nonionic surfactant or a mixture of the same. <P>SOLUTION: This method for treating the dyed keratin fiber comprises (a) a step of dyeing the keratin fiber by using a dye composition which contains at least one kind of cationic direct dye having at least one heterocyclic group, (b) a step of, optionally, washing the fiber with a washing composition (A) which contains at least one kind of detergent anionic surfactant selected from an alkyl ether sulfuric acid salt and/or an alkyl sulfuric acid salt, and (c) a step of washing the fiber with at least one kind of ampholytic surfactant and at least one kind of nonionic surfactant which is selected from an alkylpolyglucoside and a monoglycerol-added or polyglycerol-added surfactant. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
