fluorescent dye, dye composition, keratin material staining process, multi-compartment device and use of fluorescent dyes

摘要

Fluorescent dye, dye composition, keratine material staining process, multi-compartment device and use of fluorine dyes The present invention relates to a dye composition comprising a thiol / disulphide fluorescent dye comprising a pyridinium dye. external cationic charge and an interrupted alkylene chain, and a dyeing process having a lightening effect on keratin materials, in particular keratin fibers, in particular human keratin fibers, such as hair, using said composition. It refers similarly to thiol fluorescent dyes! novel disulphides and their uses in the keratinization of keratin materials. This composition makes it possible to obtain a visible and particularly resistant whitening effect on dark keratin fibers.