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Reduction of the autoxidation of agents for the oxidative dyeing and/or bleaching of keratin fibers

A technology for keratin fiber and oxidative dyeing, applied in the field of keratin fiber, can solve the problems such as weakening of the coloring ability of colorants

Active Publication Date: 2015-08-19
HENKEL KGAA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, the use of reducing agents in dyeing creams can also have disadvantages such as oxidation of dye precursors during application, reducing agents also react with oxidizing agents (hydrogen peroxide)
In addition, the use of large amounts of reducing agents can thus lead to an impairment of the coloring ability of the colorant

Method used

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  • Reduction of the autoxidation of agents for the oxidative dyeing and/or bleaching of keratin fibers
  • Reduction of the autoxidation of agents for the oxidative dyeing and/or bleaching of keratin fibers
  • Reduction of the autoxidation of agents for the oxidative dyeing and/or bleaching of keratin fibers

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Experimental program
Comparison scheme
Effect test

Embodiment

[0377] 1. Preparation of ready-to-use colorants

[0378] The following formulations were prepared. The stated amounts in each case mean % by weight, unless stated otherwise.

[0379]

[0380]

[0381] V1 is a comparative formulation and E1 is a formulation according to the invention. In each case the coloring paste was mixed with the following oxidizing agent formulations (OX) in a ratio of 1:1:

[0382]

[0383] 2. Measurement of autoxidation of colored pastes

[0384] In each case 25 g of the previously prepared creams (V1, E1) were spread on Petri dishes and allowed to stand in air for 60 minutes. Each application mixture was visually evaluated for coloration after 0 minutes (immediately after spreading), and after 10 minutes, 20 minutes, 30 minutes, 40 minutes and 60 minutes.

[0385] Table 1 Coloring of colored creams

[0386]

[0387] Color Intensity: +=Low, ++=Medium, +++=High

[0388] Over the entire observation period, the agent according to the ...

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Abstract

The subject matter of the invention is an agent for the oxidative dyeing and / or bleaching of keratin fibers, in particular human hair, comprising in a cosmetic carrier (a) at least a first alkyl glucoside of formula (I), in which R1 is an unbranched or branched, saturated or unsaturated C20-C28 alkyl group and n is an integer from 1 to 10, (b) at least a second alkyl glucoside of formula (II), in which R2 is an unbranched or branched, saturated or unsaturated C8-C18 alkyl group and m is an integer from 1 to 10, (c) at least one oxidation dye precursor of the developer type, and d) at least one oxidation dye precursor of the coupler type.

Description

technical field [0001] The subject of the present invention relates to an agent for the coloring and / or lightening of keratin fibers, especially human hair, said agent comprising two different alkyl glucosides with different alkyl chain lengths in a cosmetic carrier A specific combination of a developer-type oxidation dye precursor and a coupler-type oxidation dye precursor. The use of this specific combination for preventing discoloration due to atmospheric oxygen in oxidizing agents for the dyeing and / or brightening of keratin fibers is likewise a subject of the present invention. Background technique [0002] In order to provide color-changing cosmetic agents, especially for keratin fibers such as hair, the person skilled in the art is familiar with different dyeing systems based on the dyeing requirements. In order to obtain long-lasting, intense colorings with suitable fastness, so-called oxidation dyes are used. Colorants of this type generally contain oxidation dye ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/41A61K8/60A61Q5/10
CPCA61K2800/522A61Q5/10A61K8/411A61K8/415A61K8/604A61K8/347A61K8/463A61Q5/08
Inventor C·诺伊巴F·扬森
Owner HENKEL KGAA
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