申请人:L'Oreal
公开号:US04566875A1
公开(公告)日:1986-01-28
A two-stage process for dyeing keratin fibres, especially human hair, which comprises applying a first composition containing at least one mercaptan present in a concentration insufficient to causes degradation of the hair and subsequently without intermediate rinsing, applying an oxidising composition so as to develop the dyestuff, and optionally one or more couplers, which is applied to the fibres, the dyestuff being an oxidative dyestuff precursor of the para type, a diphenylamine, a polyhydroxybenzene, a polyhydroxynaphthalene, a polyaminobenzene, a polyaminophenol or a polyaminopolyhydroxybenzene is described and compositions for use therein.
一种用于染色角蛋白纤维,尤其是人类头发的两阶段过程,包括应用第一种含有至少一种巯基的组合物,其浓度不足以导致头发降解,随后在没有中间冲洗的情况下,应用氧化组合物以便发展染料和可选的一种或多种偶联剂,其应用于纤维,染料是一种带有对位型氧化染料前体的二苯胺,多羟基苯,多羟基萘,多氨基苯,多氨基酚或多氨基多羟基苯,并提供了用于其中使用的组合物。