Hair tinting shampoo which contains a direct dye and an anionic surfactant
AssigneeKao Corporation
InventorsSatoshi Onitsuka, Hartmut Mohring
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Abstract
A hair tinting shampoo in an aqueous medium having good lathering properties, excellent color adsorptive capacity and outstanding skin compatibility contains at least one direct, semi-permanent hair dye and at least one anionic surfactant comprising at least 25% by wt., calculated to the total quantity of the anionic surfactant, of an alkyl amidoether carboxylic acid of the general formula I ##STR1## wherein R denotes an alkyl group from 8 to 18 carbon atoms, and n is a number between 1 and 10, and (or) water-soluble salts thereof.
Claims8
Tinting shampoo comprising about 0.01-2.5 wt % of at least one direct hair dye and about 0.5-2.5 wt % of at least on anionic surfactant in an aqueous medium, wherein the anionic surfactant comprises at least 25% by wt., calculated to the total composition of the anionic surfactant, of at least one of
- an alkyl amidoether carboxylic acid of formula I ##STR6## wherein R denotes an alkyl group having 8 to 18 carbon atoms, and n is a number between 1 and 10, and
- water-soluble salts thereof.
Dependencies are inferred from the claim text.