The invention relates to the dyeing of keratinous fibres using azomethine direct dyes of formula (I) or reduced precursors of azomethine direct dyes of formula (II) obtained from 2-chloro-3-amino-6-methylphenol. A subject-matter of the invention is a dyeing composition comprising at least one chlorinated azomethine direct dye or one reduced precursor of a chlorinated azomethine direct dye, a method for dyeing keratinous fibres which employs the said composition and their uses in the dyeing of keratinous fibres. This composition makes it possible to obtain a particularly stable and consistent colouring.
本发明涉及使用公式(I)的偶氮甲基
直接染料或公式(II)的还原前体来染色角蛋白纤维。所述偶氮甲基
直接染料或其还原前体是由2-
氯-3-
氨基-6-甲基
苯酚制备而成。本发明的一种对象是
染料组合物,包括至少一种
氯化偶氮甲基
直接染料或一种
氯化偶氮甲基
直接染料的还原前体,以及一种用于染色角蛋白纤维的方法,该方法采用上述组合物,并且该组合物在染色角蛋白纤维时能够获得特别稳定和一致的着色。