公开(公告)号：US20220362137A1

公开(公告)日：2022-11-17

申请号：US17623348

申请日：2020-07-03

Applicant: L'OREAL

Inventor： Lyna ABDAT-VINDEL ,  Agathe LAHAYE ,  Maria NIETO ,  Lisa SALVEMINI

IPC: A61K8/9789 ,  A61K8/35 ,  A61Q5/06 ,  A61K8/34

Abstract: The present invention relates to an anhydrous composition for dyeing human keratin fibers, comprising at least one natural dye, at least one hydrazono and/or azo cationic synthetic direct dye and at least one compound of formula (I) in which Y represents a C1-C4 hydroxyalkyl group or a C1-C4 hydroxyalkyloxy radical, n denotes an integer ranging from 0 to 5, and X, which may be identical or different, represents a C1-C4 alkyl radical or a halogen. The invention also relates to a process for dyeing human keratin fibers using this composition.

公开(公告)号：US20220362132A1

公开(公告)日：2022-11-17

申请号：US17623349

申请日：2020-07-03

Applicant: L'OREAL

Inventor： Lyna ABDAT-VINDEL ,  Agathe LAHAYE ,  Maria NIETO ,  Lisa SALVEMINI

IPC: A61K8/896 ,  A61K8/92 ,  A61K8/73

Abstract: The present invention relates to a composition for dyeing human keratin fibers, comprising at least one natural dye, at least one triarylmethane synthetic direct dye and at least one compound of formula (I), in which Y represents a C1-C4 hydroxyalkyl group or a C1-C4 hydroxyalkyloxy radical, n denotes an integer ranging from 0 to 5, and X, which may be identical or different, represents a C1-C4 alkyl radical or a halogen. The invention also relates to a process for dyeing human keratin fibers using this composition.