Patent ID: 6945254
Filing Date: 2005-09-20
Classification: A61K,A61Q

Abstract:
1. A method for simultaneously dyeing and permanent shaping of hair, said method comprising the steps of: a) immediately prior to application on the hair, mixing a hair shaping component (A) containing from 6 to 15 percent by weight of a keratin-reducing substance with a dye component (B) to form a dyeing and shaping composition; b) treating the hair with the dyeing and shaping composition; c) then allowing the dyeing and shaping composition to act on the hair for an acting time sufficient for the permanent shaping of the hair amounting to from 3 to 30 minutes; d) after the allowing of step c), applying to the hair an intervening acidic rinse having a pH of 2 to 6; e) after the applying of the acidic rinse of step d), treating the hair with a fixing composition; f) then allowing the fixing composition to act on the hair from 1 to 40 minutes; and subsequently g) rinsing the hair; wherein the dye component (B) contains at least one oxidative coupler compound and at least one oxidative dyestuff as oxidation dye precursor compounds, and said at least one oxidative dyestuff is selected from the group consisting of 4,5-diamino-1-(2-hydroxyethyl)-1 H-pyrazole, 4,5-diamino-1-(1-methylethyl)-1H-pyrazole, 4,5-diamino-1-[(4-methyl-phenyl)methyl]-1H-pyrazole, 4,5-diamino-1-[(4-chlorophenyl)methyl]-1H-pyrazole, 4,5-diamino-1-methylpyrazole, 2-amino-6-methylphenol, 2-amino-5-methyl phenol and p-aminophenol derivatives of formula (i):  wherein R