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Process for reshaping keratin fibers

A keratin fiber, re-molding technology, applied in the field of composition and re-molding, can solve the problems of weak bending strength, poor usability for long processing time, insufficient re-molding effect, etc., and achieves good usability, excellent re-molding effect, and short processing. effect of time

Pending Publication Date: 2020-06-23
LOREAL SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] - Insufficient reshaping effect, e.g. weak bending strength;
[0008] - e.g. poor availability due to long processing times;

Method used

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  • Process for reshaping keratin fibers
  • Process for reshaping keratin fibers
  • Process for reshaping keratin fibers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-2 and comparative example 1-4

[0472] {preparation}

[0473] The following compositions according to Examples 1 and 2 and Comparative Examples 1-4 shown in Table 1 were prepared by mixing the ingredients shown in Table 1. The numerical values ​​of the amounts of ingredients shown in Table 1 are all based on "% by weight" of the active raw material. The compositions according to Examples 1 and 2 and Comparative Examples 1-4 were in gel form.

[0474] Table 1

[0475] Example 1 Example 2 Comparative example 1 Comparative example 2 Comparative example 3 Comparative example 4 KOH 6.8 6.8 6.8 6.8 6.8 6.8 taurine 15.4 15.4 15.4 15.4 15.4 15.4 Butanediol 10 - - - - - Pentylene glycol - 10 - - - - glycerin - - - 10 - - Propylene Glycol - - - - 10 - Hexylene glycol - - - - - 10 Hydroxyethyl cellulose 1.5 1.5 1.5 1.5 1.5 1.5 Polyquaternium-67 0.5 0.5 0.5 0.5 0.5 0.5 Polydimethylsiloxane 0.2 ...

Embodiment 3-5 and comparative example 5

[0496] {preparation}

[0497] The following compositions according to Examples 3-4 and Comparative Example 5 shown in Table 2 were prepared by mixing the ingredients shown in Table 2. The numerical values ​​of the amounts of ingredients shown in Table 2 are all based on "% by weight" of the active raw material. The compositions according to Examples 3-5 and Comparative Example 5 were in the form of emulsions.

[0498] Table 2

[0499] Example 3 Example 4 Example 5 Comparative example 5 NaOH 2.4 2.4 2.4 2.4 Monoethanolamine 3.6 3.6 3.6 3.6 taurine 8.7 8.7 8.7 8.7 magnesium gluconate 0.125 0.125 0.125 0.125 Pentylene glycol 10 7.5 5 - ethanol - 2.5 5 - Hydroxyethyl cellulose 1.5 1.5 1.5 1.5 Polyquaternium 67 0.5 0.5 0.5 0.5 Polydimethylsiloxane 0.2 0.2 0.2 0.2 mineral oil 5 5 5 5 Steareth-2 2 2 2 2 Steareth-20 2 2 2 2 water qsp 100 qsp 100 qsp...

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Abstract

The present invention relates to a process for reshaping keratin fibers, preferably hair, comprising the steps of: (i) applying onto the keratin fibers a composition comprising (a) at least one diol selected from C4-5 diols, wherein the composition has a pH of from 8.0 to 13.5, preferably from 8.5 to 12.0, and more preferably from 9.0 to 11.0; (ii) heating the keratin fibers; and (iii) optionallyrinsing and / or drying the keratin fibers. The present invention can reshape keratin fibers without reducing and oxidizing the keratin fibers, and can provide superior reshaping efficiency, such as strong wave intensity and many curls.

Description

[0001] field of invention [0002] The present invention relates to a process, in particular a reshaping process, and a composition for keratinous fibres, such as hair, and to methods and uses thereof. Background technique [0003] In the permanent deformation of keratin fibers such as hair, the -S-S-disulfide bonds of keratin (cystine) are first opened (reduction phase) with a composition containing a suitable reducing agent, and the thus treated hair is then optionally Rinse; subsequently, reform the disulfide bonds by applying an oxidizing composition on the keratin fibers previously under tension (curling irons, etc.) form. This technique thus makes it possible to effect a waving or straightening of keratin fibers. For example JP-B-S62-9566 or USP 4459284 disclose standard methods for permanently bending or straightening keratin fibers such as hair consistent with the above procedure. [0004] Compared to simple conventional techniques of temporary styling by using foam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/34A61Q5/04
CPCA61K8/345A61Q5/04A61K8/19A61K8/466A61K2800/592A61K2800/805
Inventor 续佐纪小牟礼夏生
Owner LOREAL SA