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Acidic hair dye composition

A composition and acid dyeing technology, applied in hair care, cosmetics, cosmetic preparations, etc., can solve problems such as changes in hair tone, and achieve the effect of excellent tone stability

Pending Publication Date: 2022-03-29
HOYU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the hair dye composition containing Black 401 and Violet 401 sometimes changes the color tone of the hair when it is dyed due to long-term storage

Method used

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  • Acidic hair dye composition
  • Acidic hair dye composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0099] [Preparation of hair dye composition]

[0100] The hair dye compositions of Examples and Comparative Examples shown in Table 1 were prepared into emulsified compositions according to conventional methods. However, the numerical value which shows content of each component in Table 1 is mass %.

[0101] [Evaluation of tone stability]

[0102] According to the following procedures, the hair bundles that were dyed directly using the prepared hair dye compositions and the hair bundles that were dyed using the hair dye compositions that were stored at 60°C for one week were prepared, and compared The color tone of the two is used to evaluate the color stability after long-term storage.

[0103] First, a hair tress of white human hair (manufactured by Beaulax Co., Ltd.) having a length of 10 cm was subjected to shampooing using shampoo "Bigen Care Shampoo" (manufactured by Friend Co., Ltd.). Then, each hair dye composition and each hair dye composition stored in a container m...

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Abstract

The invention relates to an acidic hair dye composition, which contains (A) purple 401. Moreover, the acidic hair dye composition does not contain (B) black 401, or contains (B) black 401, and the mass ratio (A) / (B) of the content of (A) purple 401 to the content of (B) black 401 in the acidic hair dye composition is 15 or more. In addition, the acidic hair dye composition contains (C) an acid.

Description

[0001] [Cross-reference to related applications] [0002] This application claims the priority of the invention patent application "Japanese Patent Application No. 2020-161293" filed with the Japan Patent Office on September 25, 2020, and hereby incorporates all the contents disclosed in the application into the description of the application. technical field [0003] The present disclosure relates to acidic hair coloring compositions. Background technique [0004] In a hair dye composition used as a semi-permanent hair dye, an acid dye is mainly formulated as a dye for dyeing hair in a desired color tone. As shown in Japanese Patent No. 5931378, Japanese Patent No. 5495475, and Japanese Patent No. 4361197, black is used in hair dye compositions for dyeing hair in dark colors such as brown to black among acid dyes. 401. [0005] According to the research of the inventors of the present disclosure, in order to obtain more vivid hues, Black 401 is often used together with ot...

Claims

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Application Information

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IPC IPC(8): A61K8/36A61K8/362A61K8/24A61K8/49A61K8/46A61Q5/10
CPCA61K8/36A61K8/362A61K8/24A61K8/4913A61K8/466A61Q5/10
Inventor 水野雄介
Owner HOYU CO LTD
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