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Oxidative dyeing compositions comprising an 1-hexyl/heptyl-4,5-diaminopyrazole and a 2-aminophenol and derivatives thereof

A composition and oxidative technology, applied in the directions of cosmetics, cosmetic preparations, pharmaceutical formulations, etc., can solve the problems of unsatisfactory composition of pyrazole compounds and the like

Active Publication Date: 2014-01-01
WELLA OPERATIONS US LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Compositions comprising pyrazole compounds known from the prior art are generally unsatisfactory, especially with regard to strength, wash resistance and bleeding

Method used

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  • Oxidative dyeing compositions comprising an 1-hexyl/heptyl-4,5-diaminopyrazole and a 2-aminophenol and derivatives thereof
  • Oxidative dyeing compositions comprising an 1-hexyl/heptyl-4,5-diaminopyrazole and a 2-aminophenol and derivatives thereof
  • Oxidative dyeing compositions comprising an 1-hexyl/heptyl-4,5-diaminopyrazole and a 2-aminophenol and derivatives thereof

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example

[0124] The following are non-limiting examples of compositions of the present invention. The examples are given for illustrative purposes only and should not be construed as limiting the invention, since many variations thereof are possible without departing from the spirit and scope of the invention, which will be appreciated by those skilled in the art. as recognized by those of ordinary skill. All concentrations are listed as weight percent unless otherwise indicated.

[0125] The test compositions were formulated by mixing the coloring component with the developer component in a 1 : 1 ratio according to the following formulation. The developer component was a commercially available Welloxon developer at a 6% (20 volume) peroxide concentration. In all tests, white hair (1.5 g tresses) was used. 3g coloring component + 3g developer component were applied to each switch for 30 minutes at 30°C. Rinse tresses for 2 minutes, including shampooing for 30 seconds.

[0126] Tab...

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Abstract

An oxidative dyeing composition comprising a 1-hexyl-4,5-diaminopyrazole compound or a 1-heptyl-4,5-diaminopyrazole compound of formula (I) in combination with a 2-aminophenol compound of formula (II): wherein R1, R2, R3, R4, R5, R6 and R7 are as defined herein and a=1 or 2. The composition provides good hair color intensity together with good wash and bleeding fastness.

Description

technical field [0001] The present invention relates to a composition for the oxidative dyeing of keratin fibers, especially human keratin fibers, comprising (A) 1-hexyl / heptyl as defined in formula (I) below -4,5-diaminopyrazole compounds, physiologically compatible water-soluble salts thereof, or mixtures thereof, (B) 2-aminophenol compounds of general formula (II) as defined below, physiologically compatible A compatible water-soluble salt, or a mixture thereof, and (C) an oxidizing agent. Background technique [0002] Oxidative dyeing of hair is one of the most widely used methods of coloring hair. In this method, an oxidative hair coloring precursor is used in combination with an oxidizing agent, usually a peroxygen oxidizing agent. The precursors are generally small molecules capable of diffusing into the hair, and generally include major intermediates and coupling agents. A variety of primary intermediates and coupling agents have been used in such oxidative hair c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/41A61K8/49A61Q5/10
CPCA61K8/494A61Q5/10A61K8/415
Inventor 林茂一B·P·墨菲M·A·波普R·M·C·萨顿G·张
Owner WELLA OPERATIONS US LLC
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