The subject of the invention is dyeing compositions containing dibenzenic nitro compounds comprising at least one cationic group Z, Z being chosen from quaternized aliphatic chains, aliphatic chains comprising at least one quaternized saturated ring and aliphatic chains comprising at least one quaternized unsaturated ring, their use as direct dyes in dyeing applications for keratin substances, in particular human keratin fibers and especially the hair, and to the direct dyeing process employing these compositions.
本发明涉及含有二苯基
硝基化合物的
染料组合物,其中至少包含一个阳离子基团Z,Z可选择自季
铵化的脂肪链、含有至少一个季
铵化饱和环的脂肪链和含有至少一个季
铵化不饱和环的脂肪链,其作为
直接染料在染色应用中用于角蛋白物质,特别是人类角蛋白纤维,尤其是头发,并且用于采用这些组合物的直接染色过程。