The invention relates to novel 4-hydroxyindole derivatives comprising at least one cationic group Z, Z being selected from quaternized aliphatic chains, aliphatic chains containing at least one quaternized saturated ring, and aliphatic chains containing at least one quaternized unsaturated ring, to their use as a coupler for the oxidation dyeing of keratinous fibers, to the dyeing compositions comprising them, and to the methods of oxidation dyeing which employ them.
本发明涉及含有至少一个阳离子基团 Z 的新型
4-羟基吲哚衍
生物,Z 可选自季
铵化脂族链、含有至少一个季
铵化饱和环的脂族链和含有至少一个季
铵化不饱和环的脂族链;本发明还涉及将它们用作角质纤维氧化染色的耦合剂、含有它们的染色组合物以及使用它们的氧化染色方法。