The present disclosure relates to a novel family of dicationic bis-hydrazone compounds that may be used as direct dyes, and to a dye composition for dyeing keratin fibers, for example, human keratin fibers such as the hair, comprising, in a suitable dyeing medium, at least one such compound. Also disclosed are dyeing processes implementing this composition and uses thereof.
本公开涉及一种新型的双阳离子双
肼酮化合物家族,可用作
直接染料,以及用于染色角蛋白纤维的
染料组合物,例如人类角蛋白纤维如头发,包括在适当的染色介质中至少含有一种这样的化合物。还公开了实施该组合物的染色过程和用途。