Process for dyeing human hair with diazo salts and coupling components
AssigneeHenkel Kommanditgesellschaft auf Aktien
InventorsArthur Buhler, Alfred Fasciati, Walter Hungerbuhler
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Abstract
Described is a process for dyeing keratin-containing material, namely human hair, with developing dyes by applying, successively in any desired sequence or simultaneously, to the keratin-containing material to be dyed, diazo salts and coupling components, and coupling these together, which process is characterized in that thereis used as coupling component an acetoacetic acid arylamide of the formula (1), (2) or (3) ##STR1## wherein X, Y and Z independently of one another each represent hydrogen, a straight-chain or branched-chain alkyl or alkoxy group having 1-4 C atoms, or a halogen atom.
Claims12
A process for dyeing human hair with developing dyes which comprises applying to said hair, at temperatures of from 15.degree. to 40.degree. C., effective amounts for dyeing, of aqueous solutions of diazo salts and coupling components, successively in any desired sequence or simultaneously;
- and coupling said diazo salt and coupling components with each other, wherein said coupling component is an acetoacetic acid arylamide of the formula (1), (2) or (3):
- ##STR20## wherein X, Y and Z, independently, each represent a member selected from the group consisting of hydrogen, alkyl having 1 to 4 carbon atoms, alkoxy group having 1 to 4 carbon atoms, and halogen.
Dependencies are inferred from the claim text.