Dyeing composition at acidic ph comprising a direct dye of triarylmethane structure
AssigneeL'oreal
InventorsFrédéric GUERIN, Valérie NICOU, Maria NIETO
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Abstract
The present invention relates to a composition for dyeing keratin fibres comprising, in a cosmetically acceptable medium of acidic pH, the pH of which is preferably less than 5, one or more direct dyes of triarylmethane structure, which are preferably cationic. The invention also relates to a process for dyeing keratin fibres using said composition and also to a use for dyeing keratin fibres.
Claims17
-16. (canceled)
A composition for dyeing keratin fibres comprising, in a cosmetically acceptable medium of acidic pH, at least one direct dye of triarylmethane structure.
A process for dyeing keratin fibres, the process comprising applying to said fibres a composition comprising, in a cosmetically acceptable medium of acidic pH, at least one direct dye of triarylmethane structure.
A process for dyeing human hair, the process comprising applying to said fibres a composition comprising, in a cosmetically acceptable medium of acidic pH, at least one direct dye of triarylmethane structure.
Dependencies are inferred from the claim text.