The present invention relates to direct dyes of azomethine type of formula (I) below; and also to the use thereof for dyeing keratin fibres, in particular human keratin fibres such as the hair. The invention also relates to a composition for dyeing keratin fibres, comprising such direct dyes in a suitable dyeing medium. Similarly, a subject of the invention is a process for dyeing keratin fibres using the said dye composition, and also a device comprising the same. Finally, the present invention also relates to precursors of these direct dyes.
本发明涉及以下式子(I)的偶氮甲基型
直接染料;以及其用于染色角蛋白纤维,特别是人类角蛋白纤维,如头发。本发明还涉及一种用于染色角蛋白纤维的组合物,其中包括适当的
染料介质中的这种
直接染料。同样,本发明的一个主题是使用所述
染料组合物染色角蛋白纤维的过程,以及包括同样
染料组合物的装置。最后,本发明还涉及这些
直接染料的前体。