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Process for reshaping keratin fibres

A keratin fiber and reshaping technology, which is applied in pharmaceutical formulations, toiletry preparations, cosmetics, etc., can solve problems such as insufficient reshaping effect, weak bending strength, long processing time and poor usability, and achieve excellent reshaping effect. Good usability, effect of short processing times

Pending Publication Date: 2020-06-16
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 fibres
  • Process for reshaping keratin fibres
  • Process for reshaping keratin fibres

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 and comparative example 1-3

[0472] {preparation}

[0473] The following compositions according to Example 1 and Comparative Examples 1-3 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 Example 1 and Comparative Examples 1-3 were in the form of emulsions.

[0474] Table 1

[0475] Example 1 Comparative example 1 Comparative example 2 Comparative example 3 NaOH 2.4 2.4 2.4 2.4 taurine 7.6 7.6 7.6 7.6 magnesium gluconate 0.25 - - - magnesium chloride - 0.25 - - copper gluconate - - 0.25 - Pentylene glycol 5 5 5 5 ethanol 5 5 5 5 Hydroxypropyl Guar Gum 1 1 1 1 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 ...

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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 organic acid salt of alkaline earth metal, wherein the composition has a pH of from 8.0 to 13.5, preferably from 8.0 to 12.0, and more preferably from 8.5 to 11.0; (ii) heating the keratin fibers; and (iii)optionally rinsing and / or drying the keratin fibers. The present invention can reshape or deform keratin fibers, preferably hair, and can provide the keratin fibers with long-lasting volumizing effects, and possibly sufficient reshaping efficiency such as strong wave intensity and many curls. Also, the present invention can provide good usability such as short processing time due to the absence of the steps of reducing and oxidizing keratin fibers.

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): A61K8/365A61Q5/04
CPCA61K8/365A61Q5/04A61K8/19A61K8/466
Inventor 续佐纪小牟礼夏生
Owner LOREAL SA