Process for treating keratin fibers using a packaging article comprising an envelope and an anhydrous composition comprising an oxidizing agent

Patent metadata

Field	Value
Publication number	US-11911636-B2
Application number	US-202016861380-A
Country	US
Kind code	B2
Filing date	Apr 29, 2020
Priority date	Dec 23, 2013
Publication date	Feb 27, 2024
Grant date	Feb 27, 2024

Abstract

The present invention relates to a process for treating keratin fibers such as the hair using a packaging article comprising i) an envelope defining at least one cavity, the envelope comprising water-soluble and/or liposoluble fibres, preferably water-soluble fibres; ii) at least one anhydrous oxidizing composition, preferably in paste or powder form, comprising at least one anhydrous chemical oxidizing agent, preferably in paste or powder form; it being understood that the oxidizing composition is in one of the cavities defined by the envelope i).

First claim

The invention claimed is:

1. A process for treating keratin fibers, the process comprising:
(i) mixing a packaging article with an aqueous composition comprising hydrogen peroxide to form a mixture having a pH ranging from 7 to 12,
wherein the packaging article comprises polyvinyl alcohol fibers and defines at least one cavity, and
wherein the at least one cavity comprises a substantially anhydrous composition comprising:
at least one chemical oxidizing agent chosen from sodium persulfates, potassium persulfates, ammonium persulfates, or mixtures of two or more thereof, wherein the total amount of chemical oxidizing agents ranges from 30% to 90% by weight, relative to the weight of the substantially anhydrous composition,
at least one alkaline agent chosen from alkali metal silicates, alkaline-earth metal silicates, alkali metal phosphates, alkaline-earth metal phosphates, alkali metal carbonates, alkaline-earth metal carbonates, or mixtures of two or more thereof, wherein the total amount of alkaline agents ranges from 1% to 25% by weight, relative to the weight of the substantially anhydrous composition,
at least one anionic surfactant,
at least one liquid fatty substance,
at least one compound chosen from polyol stearates, alkali metal stearates, alkaline-earth metal stearates, or mixtures of two or more thereof, and
at least one thickening polymer;

(ii) applying the mixture to the keratin fibers;
(iii) leaving the mixture on the keratin fibers for a leave-on time ranging from 1 minute to 1 hour; and
(iv) rinsing the keratin fibers.

2. The process of claim 1 , wherein the aqueous composition comprising hydrogen peroxide has a pH of less than 7.

3. The process of claim 2 , wherein the hydrogen peroxide is present in an amount ranging from 2% to 12% by weight, relative to the total weight of the aqueous composition.

4. The process of claim 1 , wherein the at least one chemical oxidizing agent is chosen from potassium persulfate, ammonium persulfate, or a mixture thereof.

5. The process of claim 1 , wherein the at least one alkali agent is chosen from magnesium carbonate, sodium silicate, sodium metasilicate, or mixtures of two or more thereof.

6. The process of claim 1 , wherein the substantially anhydrous composition is a powder.

7. The process of claim 1 , wherein the at least one anionic surfactant is chosen from alkali metal salts, ammonium salts, amino alcohol salts or alkaline-earth metal salts of (C12-C20)alkyl sulfates or of (C12-C20)alkyl ether sulfates comprising from 2 to 20 ethylene oxide units, or mixtures of two or more thereof.

8. The process of claim 7 , wherein the at least one anionic surfactant is chosen from sodium lauryl ether sulfate, sodium lauryl sulfate, or a mixture thereof.

9. The process of claim 1 , wherein the at least one liquid fatty substance is chosen from esters of fatty alcohols, esters of fatty acids, sugar esters or diesters of C12-C24 fatty acids, cyclic esters, cyclic ethers, silicone oils, mineral oils, plant oils, animal oils, or mixtures of two or more thereof.

10. The process of claim 1 , wherein the substantially anhydrous composition comprises sodium stearate.

11. The process of claim 1 , wherein the at least one thickening polymer is chosen from scleroglucan gum, gums derived from plant exudates, celluloses, cellulose derivatives, guar gums, guar gum derivatives, starches, starch derivatives, or mixtures of two or more thereof.

12. The process of claim 1 , wherein the substantially anhydrous composition comprises less than 0.5% water by weight, relative to the total weight of the substantially anhydrous composition.

13. The process of claim 1 , wherein the weight ratio of the packaging article to the aqueous composition ranges from 10/90 to 50/50.

14. The process of claim 1 , wherein the leave-on time ranges from 10 minutes to 40 minutes.

15. A process for treating keratin fibers, the process comprising:
(i) mixing a packaging article with an aqueous composition comprising hydrogen peroxide to form a mixture having a pH ranging from 7 to 12,
wherein the packaging article comprises polyvinyl alcohol fibers and defines at least one cavity, and
wherein the at least one cavity comprises a substantially anhydrous composition comprising:
at least one chemical oxidizing agent chosen from sodium persulfates, potassium persulfates, ammonium persulfates, or mixtures of two or more thereof, wherein the total amount of chemical oxidizing agents ranges from 30% to 90% by weight, relative to the weight of the substantially anhydrous composition,
at least one alkaline agent chosen from magnesium carbonate, sodium silicate, sodium metasilicate, or mixtures of two or more thereof, wherein the total amount of alkaline agents ranges from 1% to 25% by weight, relative to the weight of the substantially anhydrous composition,
at least one anionic surfactant chosen from sodium lauryl ether sulfate, sodium lauryl sulfate, or a mixture thereof,
mineral oil,
sodium stearate, and
at least one thickening polymer chosen from guar gum,
wherein the composition comprises less than 0.5% water by weight, relative to the substantially anhydrous composition;

(ii) applying the mixture to the keratin fibers;
(iii) leaving the mixture on the keratin fibers for a leave-on time ranging from 1 minute to 1 hour; and
(iv) rinsing the keratin fibers.

16. The process of claim 15 , wherein the leave-on time ranges from 10 minutes to 40 minutes.

17. The process of claim 15 , wherein the aqueous composition comprising hydrogen peroxide has a pH of less than 7.

18. The process of claim 15 , wherein the hydrogen peroxide is present in an amount ranging from 2% to 12% by weight, relative to the total weight of the aqueous composition.

19. The process of claim 15 , wherein the weight ratio of the packaging article to the aqueous composition ranges from 10/90 to 50/50.

Assignees

• Oreal

Inventors

• Aubert Fabien
• Guerin Frédéric

Classifications

• A61Q5/065 Primary

  Preparations for temporary colouring the hair, e.g. direct dyes · CPC title

• A61K8/731 Primary

  Cellulose; Quaternized cellulose derivatives · CPC title

• A61K8/022

  Powders; Compacted Powders · CPC title

• A61K8/027

  Fibers; Fibrils · CPC title

• A61K8/0208

  Tissues; Wipes; Patches · CPC title