公开(公告)号：US11096880B2

公开(公告)日：2021-08-24

申请号：US16622264

申请日：2018-06-18

Applicant: L'OREAL

Inventor： Samira Rharbi ,  Melanie Bellet

IPC: A61Q5/10 ,  A61K8/49 ,  A61Q5/06

Abstract: The present invention relates to a process for dyeing and/or lightening keratin fibres, in particular human keratin fibres such as the hair, using b) one or more disulfide, thiol or protected-thiol fluorescent direct dyes and a) one or more direct dyes different from b).
The present invention also relates to a cosmetic composition comprising the dyes defined above, and also to a multi-compartment device containing said dyes.
The present invention also relates to the use of the dyes a) and b) for dyeing light or dark keratin fibres, without using an additional dye different from those defined above, for giving the fibres very chromatic, particularly visible colours.

公开(公告)号：US12226502B2

公开(公告)日：2025-02-18

申请号：US18013790

申请日：2021-06-29

Applicant: L'Oreal

Inventor： Valérie Nicou ,  Samira Rharbi ,  Julie Blanc

IPC: A61Q5/10 ,  A61K8/34 ,  A61K8/35 ,  A61K8/73 ,  A61K8/89 ,  A61Q5/06

Abstract: The invention relates to a composition for dyeing human keratin fibers, preferably the hair, comprising: —one or more anthraquinone cationic direct dyes; —one or more polyols, —one or more anionic surfactants, and —one or more nonionic polysaccharides.