cosmetic composition, keratin fiber dyeing process, dark keratin fiber dyeing process and device

摘要

cosmetic composition, process for dyeing keratin fibers, process for dyeing dark keratin fibers and device the present invention is directed to a process for dyeing and / or lightening keratin fibers such as hair, which uses i) by at least one direct dye carrying a protected disulfide, thiol or thiol function and ii) at least one nonionic surfactant, iii) at least one amphoteric surfactant, iv) at least one alkaline agent, and v) at least one reducing agent. The present invention also relates to a composition comprising the ingredients i) to v) for the use of the combination of i), ii), iii), iv) and v) for dyeing and / or bleaching keratin fibers, and a multiple compartment kit for ingredients i) to v). The dyeing process and the composition according to the present invention, in particular, give keratin fibers a long lasting color that is strong, chromatic and / or homogeneous, with or without the use of an oxidizing agent.