Abstract:
A method for dyeing human keratin fiber under the presence of oxidant is provided to remove the disadvantage conventional dyeing method using aqueous ammonia and obtain strong dyeing effect. A composition for dyeing under the presence of oxidant comprises: an anhydrous cosmetic composition containing one or more fat material and surfactant; a composition containing one or more oxidant; a composition containing one or more oxidation pigment, direct pigment or their mixture and organic amine. The fat material is liquid Vaseline, polydecene, or liquid ester. The surfactant is non-ionic surfactant.
Abstract:
Method for coloring human keratin fibers in the presence of an oxidizing agent, comprises applying an anhydrous cosmetic composition (A) comprising one or more fatty substance and one or more surfactants, a composition (B) comprising one or more oxidizing agents, and a composition (C) comprising, oxidation dyes and/or direct dyes, and one or more organic amines having pKb (dissociation constant for base) of less than 12 at 25[deg] C, on the fibers. Independent claims are included for: (1) a device with several compartments comprising the anhydrous composition (A) in a first compartment, the composition (B) in a second compartment and the composition (C) in a third compartment; and (2) the anhydrous composition comprising one or more fatty substance, surfactants, oxidation dyes and/or direct dyes, and organic amines.