Dyeing composition for keratin fibers
AssigneeKao Germany GmbH
InventorsJonathan Wood, Anja Aechtner, Axel Blake
Life of this patent
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Abstract
Present invention relates to dyeing composition for keratin fibers especially human hair comprising cationic anthrachinone dye. The first object of the present invention is a dyeing composition for keratin fibers especially human hair resulting from mixing of two parts A and B wherein part A has an alkaline pH and comprises at least one cationic antraquinone dye and at least one additional dyestuff selected from direct and oxidative dyes and part B has an acidic pH and comprises at least one oxidizing agent.
Claims18
A dyeing composition for keratin fibres resulting from mixing of Part A and Part B wherein Part A has an alkaline pH and comprises at least one cationic antraquinone dye selected from the group consisting of
- and at least one additional dyestuff selected from direct and oxidative dyes and Part B has an acidic pH and comprises at least one oxidizing agent, wherein Part A of the dyeing composition is an emulsion composition and comprises at least one fatty alcohol and at least one surfactant, wherein the at least one fatty alcohol is present at a concentration of 1 to 20% by weight calculated to total composition, prior to mixing with Part B, and further wherein the at least one surfactant is present at a concentration of 0.5 to 15% by weight calculated to a total composition, prior to mixing with Part B.
A kit for colouring keratin fibres comprising at least two compositions, Parts A and B, wherein Part A is an alkaline composition and comprises at least one cationic antraquinone dyestuff and at least one at least one additional dyestuff selected from direct and oxidative dyes and Part B has an acidic pH and comprises at least one oxidizing agent, wherein Part A of the dyeing composition is an emulsion composition and comprises at least one fatty alcohol and at least one surfactant, wherein the at least one fatty alcohol is present at a concentration of 0.1 to 10% by weight calculated to total composition, prior to mixing with Part B, and further wherein the at least one surfactant is present at a concentration of 0.5 to 15% by weight calculated to a total composition, prior to mixing with Part B.
Dependencies are inferred from the claim text.