Method for treating hair fibers

Abstract

A hair fiber treating method not containing a fixing step, comprising, applying to the hair fibers at least one reducing composition, free of ceramide, comprising at least one reducing agent; and raising the temperature of the hair fibers using a heating iron at temperature of at least 60 C., wherein the temperature of the hair fibers are raised before or after the hair fibers are optionally rinsed.

Claims

1. A method for treating hair fibers, the method comprising: applying to the hair fibers a reducing composition, free of ceramide, comprising at least one reducing agent present in an amount of less than about 3% by weight, relative to the total weight of the at least one reducing composition, wherein the at least one reducing agent is chosen from the group consisting of non-aminated thiols and salts of non-aminated thiols; and applying a heating iron to the hair fibers to raise the temperature of the hair fibers, wherein the heating iron has a temperature ranging from about 60 C. to about 250 C., and wherein the heating iron is applied before or after the hair fibers are optionally rinsed, wherein the method does not comprise a fixing step.

2. The method according to claim 1, wherein the reducing composition has a pH of less than or equal to about 9.

3. The method according to claim 1, wherein the reducing composition does not comprise dithiodiglycolic acid or any salt thereof.

4. The method according to claim 1, wherein the temperature of the heating iron ranges from about 120 C. to about 220 C.

5. The method according to claim 1, wherein the at least one reducing agent is present in an amount ranging from about 0.1% to about 3% by weight, relative to the total weight of the at least one reducing composition.

6. The method according to claim 5, wherein the at least one reducing agent is present in an amount ranging from about 0.5% to about 3% by weight, relative to the total weight of the at least one reducing composition.

7. The method according to claim 1, wherein the reducing composition is applied to wet and clean hair fibers.

8. The method according to claim 1, further comprising leaving the reducing composition on the hair fibers for a time period ranging from about 5 to about 60 minutes before applying a heating iron to the hair fibers.

9. The method according to claim 1, further comprising leaving the reducing composition on the hair fibers for a time period ranging from about 5 to about 30 minutes before applying a heating iron to the hair fibers.

10. The method according to claim 1, further comprising not rinsing the hair fibers after applying the reducing composition and before applying a heating iron to the hair fibers.

11. The method according to claim 1, further comprising partially pre-drying the hair fibers after applying the reducing composition and before applying a heating iron to the hair fiber.

12. The method according to claim 1, wherein the non-aminated thiols are chosen from the group consisting of thiolactic acid, esters of thiolactic acid, thioglycolic acid, esters of thioglycolic acid, and thioglycerol.

13. The method according to claim 1, wherein the at least one reducing agent is a non-aminated thiol in salt form.

14. The method according to claim 1, wherein the reducing composition comprises at least one solvent chosen from the group consisting of water, C.sub.1-C.sub.6 alcohols, polyhydric alcohols, benzyl alcohol, polyol ethers, C.sub.2-C.sub.6 esters, N-methylpyrrolidone (NMP), and C.sub.3-C.sub.6 ketones.

15. The method according to claim 14, wherein the C.sub.1-C.sub.6 alcohols are alkanols chosen from the group consisting of ethanol, propanol, and isopropanol.

16. The method according to claim 14, wherein the polyhydric alcohols are chosen from the group consisting of propyleneglycol, pentanediol, and glycerine.

17. The method according to claim 1, wherein the at least one reducing composition further comprises at least one cosmetic additive chosen from the group consisting of volatile silicones, non volatile silicones, linear silicones, cyclic silicones; cationic polymers, non ionic polymers, anionic polymers, amphoteric polymers; peptides, peptide derivatives; protein hydrolyzates; waxes; swelling agents, penetrating agents; agents that are able to increase the efficiency of the at least one reducing agent; anionic surfactants, cationic surfactants, non ionic surfactants, amphoteric surfactants, zwitterionic surfactants; active agents combating hair loss; anti-dandruff agents; natural thickeners, synthetic thickeners, associative thickeners, nonassociative thickeners; suspension agents; sequestering agents; opacifying agents; dyes; sunscreen agents; vitamins, provitamins; fatty acids; fatty alcohols; mineral oils, vegetable oils, synthetic oils; fragrances; and preserving agents.

18. The method according to claim 17, wherein the cationic polymers are chosen from the group consisting of hexadimethrine chloride, dimethyldiallylammonium chloride homopolymers, and dimethyldiallylammonium chloride copolymers.

19. The method according to claim 1, wherein the reducing composition is provided in a form chosen from the group consisting of an optionally thickened lotion, cream, gel, or foam.

20. A method for treating hair fibers to change the shape of the hair fibers without excessively altering the hair color and/or without excessively damaging the hair fibers, the method comprising: applying to the hair fibers a reducing composition, free of ceramide, comprising at least one reducing agent present in an amount of less than about 3% by weight, relative to the total weight of the at least one reducing composition, wherein the at least one reducing agent is chosen from the group consisting of non-aminated thiols and salts of non-aminated thiols; and applying a heating iron to the hair fibers to raise the temperature of the hair fibers, wherein the heating iron has a temperature ranging from about 60 C., to about 250 C., and wherein the heating iron is applied before or after the hair fibers are optionally rinsed, wherein the method does not comprise a fixing step.

Description

EXAMPLES

(1) The hair fiber treating method disclosed herein was carried out using a reducing composition.

(2) Tested reducing compositions were as follows:

(3) Reducing composition 1

(4) TABLE-US-00001 L-Cysteine 1.4 g MEXOMERE PO 2.5 g 2-amino-2-methyl-1-propanol qs pH 9 Demineralized water qs 100 g

(5) Reducing composition 2

(6) TABLE-US-00002 Thioglycolic acid 1.1 g MEXOMERE PO 2.5 g 2-amino-2-methyl-1-propanol qs pH 9 Demineralized water qs 100 g

(7) Reducing composition 3

(8) TABLE-US-00003 L-Cysteine 1.4 g Thioglycolic acid 0.3 g MEXOMERE PO 2.5 g 2-amino-2-methyl-1-propanol qs pH 9 Demineralized water qs 100 g

(9) Reducing composition 4

(10) TABLE-US-00004 L-Cysteine 1.4 g 2-amino-2-methyl-1-propanol qs pH 9 Demineralized water qs 100 g

(11) Tests were conducted on colored, naturally curling hair.

(12) A reducing composition such as previously described was applied onto the hair and left on for 5 minutes.

(13) The hair was then partially pre-dried using a hair drier before being treated using a flat iron heated to 180 C.

(14) As a result, the hair fiber showed a good texture, a well controlled volume, a good respect of the color and a long term durability of the effects.