Methods of Straightening and Bleaching Hair

一种毛发、漂色的技术，应用在毛发护理、美发设备、医药配方等方向，能够解决有过描述等问题

Active Publication Date: 2018-08-21
KAO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] However, the combination of these straightening and hair bleaching methods has not been described in the prior art

Method used

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  • Methods of Straightening and Bleaching Hair
  • Methods of Straightening and Bleaching Hair
  • Methods of Straightening and Bleaching Hair

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0116]

Embodiment 2

[0118]

[0119]

[0120] Before applying to the hair, mix the bleaching powder with 12% H 2 o 2 The aqueous solutions were mixed in a 1:1 weight ratio. The straightening composition described in Example 1 was used as the straightening composition.

Embodiment 3

[0122]

[0123] Before applying to the hair, mix the bleaching powder with 9% H 2 o 2 The aqueous solutions were mixed in a 1:1 weight ratio. The straightening composition described in Example 1 was used as the straightening composition.

[0124] The above compositions of Examples 1 to 3 were used to straighten and lighten or bleach hair. It was observed that the stress-strain values ​​of hair fibers that were lightened or bleached after straightening the hair were similar to untreated hair, clearly indicating a surprising restoration of the mechanical properties of the hair.

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PUM

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Abstract

The present invention relates to a method of semi-permanent straightening and bleaching of hair in two steps, the straightening and bleaching being carried out one after the other during a salon visit. For this purpose, the process of the invention uses a first composition (straightening composition) comprising at least one carboxylic acid of formula (I), and a second composition comprising at least one oxidizing agent and at least one alkalizing agent substances (bleaching compositions). The hair is treated successively with the composition described above, so that the bleaching treatment is carried out directly after the straightening treatment.

Description

technical field [0001] The present invention relates to a method for semi-permanent straightening and bleaching of hair in two steps. Background technique [0002] One known method for straightening curly or frizzy hair involves the use of a straightening iron. The high temperature of the iron causes the breaking of hydrogen bonds in the keratin of the hair, resulting in temporary straightening. Hydrogen bonds are formed again by the action of moisture, so that the hair returns to its original shape over time due to air humidity, and the straightening effect disappears after washing the hair. [0003] The morphology of hair is largely determined by the disulfide bonds linking the two cysteine ​​moieties of hair keratin. In order to achieve a more permanent styling of the hair, known methods involve the cleavage of disulfide bonds by the action of reducing agents comprising thioether or thio groups. After bringing the hair into the desired shape, the hair shape is fixed by...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K8/365A61Q5/04A61Q5/08A61K8/19A61K8/22
CPCA61Q5/04A61Q5/08A61K8/19A61K2800/884A61K8/365A45D7/04A61K8/22
Inventor B·罗泽J·伍德
Owner KAO CORP
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