The present disclosure relates to the use of cationic azo compounds with julolidine units as direct dyes, for the dyeing of keratin fibers, including human keratin fibers, such as the hair. The present disclosure also relates to a dyeing composition for the dyeing of keratin fibers, including human keratin fibers such as the hair, containing at least one cationic direct azo dye with julolidine units, in a suitable dyeing medium. The present disclosure also relates to a method of dyeing of keratin fibers, including human keratin fibers such as the hair, employing the dyeing composition according to the disclosure. The present disclosure also relates to cationic azo compounds with julolidine units.
本公开涉及使用带有茱萸啉单元的阳离子偶氮化合物作为
直接染料,用于染色角蛋白纤维,包括人类角蛋白纤维,如头发。本公开还涉及一种用于染色角蛋白纤维的染色组合物,包括人类角蛋白纤维,如头发,其中含有至少一种带有茱萸啉单元的阳离子直接偶氮
染料,在适当的染色介质中。本公开还涉及一种染色角蛋白纤维的方法,包括人类角蛋白纤维,如头发,采用根据本公开的染色组合物。本公开还涉及带有茱萸啉单元的阳离子偶氮化合物。