Pro-dyes of direct dyes having an enzymatically-labile functionality, e.g. glutaramide derivatives of direct dyes of formula (I) or their physiologically acceptable salts,
1
are described, as well as compositions for dyeing keratinous fibers containing these pro-dyes, as well as compositions for dyeing keratinous fibers containing a combination of at least one pro-dye and at least one enzyme capable of cleaving the glutaramide functionality in the pro-dye. A method for dyeing keratinous fibers with the aforementioned dyeing compositions is also described.
本文介绍了一种具有酶敏感性官能团的
直接染料的前体
染料,例如公式(I)的
直接染料的戊二酰胺衍
生物或其生理上可接受的盐,并介绍了含有这些前体
染料的染色角蛋白纤维的组合物,以及含有至少一种能够裂解前体
染料中戊二酰胺官能团的酶和至少一种前体
染料的组合物的染色角蛋白纤维的组合物。还介绍了使用上述
染料组合物染色角蛋白纤维的方法。