METHOD FOR TREATING KERATIN FIBERS USING A COMPOSITION COMPRISING AT LEAST ONE SILICONE ACRYLIC COPOLYMER AND AT LEAST ONE PIGMENT

Abstract

A method for treating human keratin fibers such as the hair is described and comprises the application to the keratin fibers of a dye composition comprising at least one silicone acrylic copolymer and at least one pigment, optionally the application of heat to the dyed keratin fibers using a heating tool and the application to the dyed keratin fibers of a makeup-removing composition comprising at least one hydrocarbon oil.

Claims

1.-18. (canceled)

19. A method for treating human keratin fibers, comprising: a) applying to the keratin fibers a composition comprising: at least one silicone acrylic copolymer; and at least one pigment; b) optionally applying heat to the keratin fibers using a heating tool; and c) applying to the keratin fibers a makeup-removing composition comprising at least one hydrocarbon oil.

20. The method of claim 19, wherein the at least one silicone acrylic copolymer comprises: a polyalkylsiloxane unit, and at least one alkyl acrylate or methacrylate unit comprising an alkyl radical comprising from 1 to 30 carbon atoms.

21. The method of claim 19, wherein the at least one silicone acrylic copolymer comprises a polyalkylsiloxane unit and at least two alkyl acrylate or methacrylate units.

22. The method of claim 20, wherein the alkyl radical of the at least one alkyl acrylate or methacrylate unit comprises from 1 to 10 carbon atoms.

23. The method of claim 19, wherein the at least one silicone acrylic copolymer comprises: a polydimethylsiloxane (PDMS) unit, and an alkyl acrylate or methacrylate unit comprising an alkyl radical having from 1 to 30 carbon atoms.

24. The method of claim 19, wherein the at least one silicone acrylic copolymer comprises: a polydimethylsiloxane (PDMS) unit comprising at least one polymerizable radical group chosen from an acrylic or methacrylic group having from 1 to 6 carbon atoms; and a C.sub.1-C.sub.22 alkyl acrylate or methacrylate unit.

25. The method of claim 19, wherein the at least one silicone acrylic copolymer comprises: a polydimethylsiloxane (PDMS) unit comprising at least one polymerizable radical group chosen from a CH.sub.2═CH—CO—O—R.sub.1— group, where R.sub.1 represents an alkyl radical comprising from 1 to 3 carbon atoms; and a C.sub.1-C.sub.10 alkyl acrylate or methacrylate unit.

26. The method of claim 19, wherein the at least one silicone acrylic copolymer is present in a total amount ranging from 1% to 50% by weight, relative to the total weight of the composition.

27. The method of claim 19, wherein the at least one pigment is present in a total amount ranging from 0.01% to 30% by weight, relative to the total weight of the composition.

28. The method of claim 19, wherein the composition further comprises at least one oil.

29. The method of claim 28, wherein the at least one oil is present in a total amount ranging from 10% to 99% by weight, relative to the total weight of the composition.

30. The method of claim 19, wherein the makeup-removing composition comprises at least one non-volatile hydrocarbon oil.

31. The method of claim 19, wherein the at least one hydrocarbon oil is chosen from synthetic esters of formula:
R.sub.1COOR.sub.2, wherein R.sub.1 represents the residue of a fatty acid comprising from 8 to 29 carbon atoms, and R.sub.2 represents a branched or unbranched hydrocarbon chain containing from 3 to 30 carbon atoms.

32. The method of claim 19, wherein the at least one hydrocarbon oil is chosen from isopropyl myristate, isononyl isononanoate, or mixtures thereof.

33. The method of claim 19, wherein the at least one hydrocarbon oil is present in a total amount ranging from 10% to 95% by weight, relative to the total weight of the makeup-removing composition.

34. The method of claim 19, wherein the makeup-removing composition further comprises at least one nonionic surfactant chosen from esters of C.sub.8-C.sub.24 fatty acids.

35. The method of claim 19, wherein the application of the composition to the keratin fibers is carried out before the optional application of heat to the keratin fibers and before the application of the makeup-removing composition to the keratin fibers.

36. The method of claim 19, wherein the application of heat to the keratin fibers is carried out before the application of the makeup-removing composition to the keratin fibers.

37. The method of claim 19, wherein applying heat to the keratin fibers using a heating tool having a temperature ranging from 30° C. to 250° C.

38. The method of claim 19, wherein applying heat to the keratin fibers is carried out using a straightening iron.

Description

EXAMPLE

Example 1

[0350] Dye Composition

[0351] Compositions (g/100 g)

TABLE-US-00001 Composition A (invention) Isobutyl methacrylate/bis- 25 hydroxypropyl dimethicone acrylate copolymer (containing 40% active material in isododecane).sup.(1) Pigment rouge  6 isododecane qs 100 .sup.(1)sold under the trade name Granacrysil BMAS by Grant Industries

[0352] Protocol:

[0353] The dye composition A is applied to locks of natural hair containing 90% white hairs in a proportion of 0.5 g of composition per gram of lock.

[0354] The locks of hair are then combed and dried with a hairdryer.

[0355] A straightening iron is then passed over each of the locks five times at a temperature of 190° C.

[0356] The hair is dyed uniformly and intensely.

[0357] The hair thus dyed is then subjected to a test of several repeated shampoo washes so as to evaluate the persistence (resistance) of the coloring obtained with respect to shampoo washes.

[0358] Shampoo Wash Protocol:

[0359] The locks are washed with standard shampoo respectively at T=0 (i.e. immediately after the application of the dye composition to the keratin fibers and after the application of the straightening iron to the locks of hair).

[0360] The locks of hair are then rinsed, combed and dried with a hairdryer.

[0361] Lastly, a straightening iron is then passed over each of the locks five times at a temperature of 190° C.

[0362] The next shampoo wash is then performed on the locks obtained after the passes of the straightening iron.

[0363] Results:

[0364] The resistance of the color of the locks was evaluated in the CIE L*a*b* system, using a Minolta Spectrophotometer CM3600D colorimeter.

[0365] In this L*a*b* system, L* represents the intensity of the color, a* indicates the green/red color axis and b* the blue/yellow color axis.

[0366] The resistance of the coloring is evaluated by the color difference ΔE between the dyed locks before shampooing, then after having undergone 3 and 10 shampoo washes according to the protocol described above. The lower the value of ΔE, the more shampoo-resistant the color.

TABLE-US-00002 Number of shampoo washes L* a* b* ΔE 0 35 37 17 3 35 37 15 2.0 10 39 32 10 9.5

[0367] The hair has a natural feel and the strands of hair may be separated with the fingers or by using a comb and/or a brush.

[0368] The locks of hair dyed with the dye composition A and washed with three or ten shampoo washes have low values of ΔE.

[0369] Thus, the hair is dyed and the colored coating of the keratin fibers is shampoo-resistant. Specifically, the locks of hair washed with three or ten shampoo washes have a good color resistance.

[0370] Makeup-Removing Composition

[0371] Compositions (g/100 g)

TABLE-US-00003 Composition B (invention) Polysorbate 21 30 Isopropyl myristate 30 Isononyl isononanoate 30 Ethanol 3 Caprylyl glycol 0.5 preservative qs water qs 100

[0372] Protocol:

[0373] The locks of hair dyed by the dye composition A are treated with the makeup-removing composition B once the dyed locks are dry to the touch, in a proportion of 0.5 g of composition B per gram of lock.

[0374] The locks of hair dyed by the dye composition A are rinsed with the makeup-removing composition B three times in succession. Between each application of the makeup-removing composition, the locks are rinsed with water.

[0375] After the three applications of the makeup-removing composition, the locks are placed on absorbent paper and dried with a hairdryer.

[0376] Results:

[0377] As the number of washes with the makeup-removing composition increases, the hair is rapidly bleached.

Example 2

[0378] Dye Composition

[0379] Protocol:

[0380] The dye composition A of example 1 is applied to locks of natural hair containing 90% white hairs in a proportion of 0.5 g of composition per gram of lock.

[0381] The locks of hair are then combed and dried with a hairdryer.

[0382] A straightening iron is then passed over each of the locks five times at a temperature of 190° C.

[0383] The hair is dyed uniformly and intensely.

[0384] Makeup-Removing Composition

[0385] Compositions (g/100 g)

TABLE-US-00004 Composition C (comparative) Polysorbate 21 90 Ethanol 3 Caprylyl glycol 0.5 preservative qs water qs 100

[0386] Protocol:

[0387] The locks of hair dyed by the dye composition A are treated with the makeup-removing composition B according to the invention (described in example 1) and with the makeup-removing comparative composition C once the dyed locks are dry to the touch, in a proportion of 0.5 g of composition per gram of lock.

[0388] The locks of hair dyed by the dye composition A are rinsed with the makeup-removing composition B according to the invention (as described in example 1) and with the makeup-removing comparative composition C three times in succession. Between each application of the makeup-removing composition, the locks are rinsed with water.

[0389] After the three applications of the makeup-removing composition, the locks are placed on absorbent paper and dried with a hairdryer.

[0390] Results:

[0391] The resistance of the color of the locks was evaluated in the CIE L*a*b* system, using a Konica Minolta CM-3600A colorimeter.

[0392] In this L*a*b* system, L* represents the intensity of the color, a* indicates the green/red color axis and b* the blue/yellow color axis.

[0393] The resistance of the coloring is evaluated by the color difference ΔE between the dyed locks before applying the makeup-removing composition, then applying the makeup-removing composition B according to the invention (as described in example 1) and with the makeup-removing comparative composition C, according to the protocol described above. The lower the value of ΔE, the more resistant is the color to the makeup-removing composition.

TABLE-US-00005 Compositions L* a* b* ΔE Composition 35.4 41.3 17.4 A Composition 47.3 22.8 12.2 22.60 A + C Composition 63.1 6.4 17.3 44.56 A + B

[0394] The locks of hair dyed with the dye composition A and treated with the makeup-removing composition B according to the invention have higher value of ΔE than the locks of hair dyed with the dye composition A and treated with the makeup-removing comparative composition C.

[0395] Thus, the makeup-removing composition B according to the invention is more efficient for cleansing the hair than the comparative makeup-removing composition C.