The invention concerns a novel dyeing composition for dyeing keratinous fibers, in particular human hair, comprising a cationic azo-dye of formula (I): W1-N═N-W2-W3, as well as the dyeing method using said composition and the novel compounds of formula (I).
本发明涉及一种新型
染料组合物,用于染色角蛋白纤维,特别是人类的头发,包括一种公式(I)的阳离子偶氮
染料:W1-N═N-W2-W3,以及使用该组合物的染色方法和公式(I)的新化合物。