| 摘要 |
Colorant for coloring keratin fibers, which is mixed with an oxidant before application, contains a combination of 1-alkyl-4,5-diaminopyrazole derivative(s) (I) and (3-hydroxy-, amino-, alkylamino-, dialkylamino- or alkoxy-phenyl)-urea derivative(s) (II) or their physiologically compatible salts in a suitable cosmetic vehicle. Colorant for coloring keratin fibers, which is mixed with an oxidant before application, contains a combination of 1-alkyl-4,5-diaminopyrazole derivative(s) (I) and (3-hydroxy-, amino-, alkylamino-, dialkylamino- or alkoxy-phenyl)-urea derivative(s) (II) of the given formulae or their physiologically compatible salts in a suitable cosmetic vehicle. [Image] R : linear or branched 1-6 carbon (C) alkyl, monohydroxyalkyl or monoaminoalkyl; 2-6 C polyhydroxyalkyl or polyaminoalkyl; or benzyl, optionally with a halogen or 1-6 C alkyl or alkoxy substituent; R1 hydroxyl (OH), amino or a linear or branched 1-6 C alkylamino, 2-6 C dialkylamino or 1-6 C alkoxy group; R2 = H, halogen or a linear or branched 1-6 C alkyl, 1-6 C alkoxy, 1-6 C hydroxyalkyl or 2-6 C polyhydroxyalkyl group; R2 not = H if R1 = dialkylamino. An independent claim is also included for a method of coloring hair by applying the colorant and allowing it to act for 10-45 minutes at 15-50[deg]C, then rinsing the hair with water, optionally washing with shampoo and drying.
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