A dye composition for keratinous fibres comprising a solvent and at least one dye which is a compound of formula: ##STR1## in which R.sub.1 and R.sub.2 are each, independently of each other, hydrogen, an alkyl group, a mono- or polyhydroxylated alkyl group, an alkyl group substituted by an alkoxy or hydroxyalkoxy group, or an aminoalkyl group, the amino group of which is optionally substituted with one or two alkyl or hydroxyalkyl groups, and it being possible for the nitrogen atom also to form part of a heterocyclic ring, all the abovementioned alkyl groups or moieties containing from 1 to 6 carbon atoms, or, of the compound of formula (I) contains an amino group which can be salified, a cosmetically acceptable salt thereof.
一种用于角蛋白纤维的
染料组合物,包括溶剂和至少一种
染料,该
染料是以下化合物的一种:##STR1## 其中R.sub.1和R.sub.2各自独立地是氢、烷基、单羟基或多羟基烷基、烷基取代的烷氧基或羟基烷氧基、或
氨基烷基,其
氨基可以选择性地取代一个或两个烷基或羟基烷基,并且氮原子也可以成为杂环环的一部分,所有上述烷基基团或基团均含有1至6个碳原子,或者,化合物的公式(I)含有一个可以盐化的
氨基,其在化妆品中是可接受的盐。