The invention relates to the dyeing of keratin materials using phenylpyrido[1,2-a]indolinium-derived thiol and disulfide fluorescent dyes. The invention relates to a dye composition comprising a phenylpyrido[1,2-a]indolinium-derived-chromophore thiol or disulfide dye and to a dyeing process with a lightening effect on keratin materials, in particular keratin fibers, especially human keratin fibers, such as the hair, using said composition. It similarly relates to novel phenylpyrido[1,2-a]indolinium-derived-chromophore thiol dyes and to the uses thereof in lightening keratin materials. This composition makes it possible to obtain a coloring with a lightening effect which is particularly resistant and visible on dark keratin fibers.
                            本发明涉及使用苯基
吡咯[1,2-a]
吲哚基
硫醇和二
硫化物荧光
染料染色角蛋白质材料。本发明涉及一种
染料组成物,包括苯基
吡咯[1,2-a]
吲哚基色团
硫醇或二
硫化物染料,并且涉及使用该组成物对角蛋白质材料进行染色过程,特别是角蛋白质纤维,尤其是人类角蛋白质纤维,如头发,具有美白效果。它同样涉及新的苯基
吡咯[1,2-a]
吲哚基色团
硫醇
染料及其在美白角蛋白质材料方面的应用。该组成物可使得在深色角蛋白质纤维上获得特别耐用和明显的美白效果。