The present invention relates to particular cationic tetrahydropyrazolopyridine compounds of formula (I) below and also to the use thereof for dyeing keratin fibres, in particular human keratin fibres such as the hair. The invention also relates to a dye composition comprising, in a suitable dyeing medium, one or more cationic tetrahydropyrazolopyridines as defined previously. Finally, the invention relates to a dyeing device using the said composition.
本发明涉及特定的阳离子四
氢吡唑吡啶化合物(I)以及其在染色角蛋白纤维,特别是人类角蛋白纤维,如头发中的使用。本发明还涉及一种
染料组合物,其中在适当的
染料介质中,包含一种或多种如上所定义的阳离子四
氢吡唑吡啶。最后,本发明涉及使用该组合物的染色装置。