A composition for the oxidation dyeing of keratinous fibers containing at least one coupler selected from N-substituted 4-hydroxyindole compounds and acid addition salt thereofs and at least one oxidation base, N-substituted 4-hydroxyindole compounds, a process for synthesizing these substituted compounds, their use as couplers for the oxidation dyeing of keratinous fibers in combination with at least one oxidation base, as well as dyeing processes employing them.
一种用于角蛋白纤维氧化染色的组合物,其中包含至少一种从N-取代的
4-羟基吲哚化合物和其酸加成盐中选择的
偶联剂,以及至少一种氧化碱,N-取代的
4-羟基吲哚化合物,一种合成这些取代化合物的过程,它们作为氧化
染料的
偶联剂与至少一种氧化碱结合使用,以及采用它们的染色过程。