Method for treating keratin fibers using a composition comprising at least one cationic 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 cationic acrylic copolymer and at least one pigment, and the application to the dyed keratin fibers of a makeup-removing composition comprising at least one hydrocarbon oil.

Claims

1. A method for treating human keratin fibers comprising: applying to the keratin fibers a first composition comprising: at least one cationic acrylic copolymer comprising: a) at least one first unit chosen from monomers derived from acrylic or methacrylic esters or amides and comprising at least one cationic group; and b) at least one second unit chosen from alkyl acrylate and/or methacrylate monomers; and at least one pigment; and applying to the keratin fibers a second composition comprising at least one hydrocarbon oil.

2. The method of claim 1, wherein the cationic acrylic copolymer further comprises c) at least one third unit chosen from polymerizable ethylenic monomers.

3. The method of claim 2, wherein the at least one third unit is chosen from polymerizable ethylenic monomers of formula (A′): ##STR00007## wherein in formula (A′), R and R′, which may be identical or different, are chosen from a hydrogen atom or a C.sub.1-C.sub.10 alkyl radical; and x ranges from 1 to 10.

4. The method of claim 3, wherein in formula (A′), R is a methyl radical and R′ is an ethyl radical.

5. The method of claim 1, wherein: a) the at least one first unit is chosen from monomers derived from acrylic or methacrylic esters or amides and comprising at least one cationic group of the following formulae (I), (II), (III), or (IV): ##STR00008## wherein in formulae (I), (II), (III), and (IV): R.sub.3 is chosen from a hydrogen atom or a CH.sub.3 group; A is chosen from a linear or branched divalent alkyl group with 1 to 6 carbon atoms, or a hydroxyalkyl group with 1 to 4 carbon atoms; R.sub.4, R.sub.5, and R.sub.6, which may be identical or different, are chosen from an alkyl group having from 1 to 18 carbon atoms or a benzyl group; R.sub.1 and R.sub.2, which may be identical or different, are chosen from a hydrogen atom or an alkyl group having from 1 to 6 carbon atoms; and X.sup.− represents an anion derived from a mineral or organic acid, or a halide; and b) the at least one second unit is chosen from C.sub.1-C.sub.30 alkyl acrylate and/or methacrylate monomers.

6. The method of claim 1, wherein the at least one second unit is chosen from C.sub.1-C.sub.10 alkyl acrylate and/or methacrylate monomers.

7. The method of claim 2, wherein: a) the at least one first unit is chosen from monomers derived from acrylic or methacrylic esters or amides and comprising at least one cationic group of the following formulae (I) or (II): ##STR00009## wherein in formulae (I) and (II): R.sub.3 represents a hydrogen atom or a CH.sub.3 group; A represents a linear or branched divalent alkyl group with 1 to 6 carbon atoms, or a hydroxyalkyl group with 1 to 4 carbon atoms; R.sub.4, R.sub.5, and R.sub.6, which may be identical or different, are chosen from an alkyl group having from 1 to 18 carbon atoms or a benzyl group; R.sub.1 and R.sub.2, which may be identical or different, are chosen from a hydrogen atom or an alkyl group having from 1 to 6 carbon atoms; and X.sup.−represents an anion derived from a mineral or organic acid, or a halide; b) the at least one second unit is chosen from C.sub.1-C.sub.30 alkyl acrylate or methacrylate monomer; and c) the at least one third unit is chosen from polymerizable ethylenic monomers of the following formula: ##STR00010## wherein in formula (A′): R and R′, which may be identical or different, are chosen from a hydrogen atom, or a C.sub.1-C.sub.10 alkyl radical; and x ranges from 1 to 10.

8. The method of claim 2, wherein the cationic acrylic copolymer comprises units obtained from the following monomers: a) methacryloyloxyethyltrimethylammonium salt; b) butyl methacrylate; and c) ethoxyethyl methacrylate.

9. The method of claim 1, wherein the total amount of cationic acrylic copolymers ranges from 1% to 50% by weight, relative to the total weight of the composition.

10. The method of claim 1, wherein the total amount of pigments ranges from 0.01% to 30% by weight, relative to the total weight of the composition.

11. The method of claim 1, wherein the first composition further comprises at least one organic solvent chosen from lower C.sub.1-C.sub.4 alkanols, polyols, polyol ethers, aromatic alcohols, or mixtures thereof.

12. The method of 11, wherein the total amount of organic solvents ranges from 0.1% to 80% by weight, relative to the total weight of the composition.

13. The method of claim 1, wherein the second composition comprises at least one non-volatile hydrocarbon oil.

14. The method of claim 1, 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.

15. The method of claim 13, wherein the at least one non-volatile hydrocarbon oil is chosen from isopropyl myristate, isononyl isononanoate, or mixtures thereof.

16. The method of claim 13, wherein the total amount of non-volatile hydrocarbon oils ranges from 10% to 95% by weight, relative to the total weight of the second composition.

17. The method of claim 1, wherein the second composition further comprises at least one nonionic surfactant.

18. The method of claim 17, wherein the at least one nonionic surfactant is chosen from esters of C.sub.8-C.sub.24 fatty acids.

19. The method of claim 1, wherein the application of the first composition to the keratin fibers is carried out before the application of the second composition to the keratin fibers.

20. The method of claim 1, further comprising applying heat to the keratin fibers using a heating tool having a temperature ranging from 40° C. to 220° C., wherein the application of heat is carried out after the application of the first composition to the keratin fibers and before the application of the second composition to the keratin fibers.

Description

EXAMPLE

Example 1

(1) Dye Composition

(2) Compositions (g/100 g)

(3) TABLE-US-00001 Composition A (invention) Polyquaternium 99 (containing 30 30% active material in ethanol).sup.(1) Ethanol 22.34 Carbon Black (CI 77266) (in aqueous 12 dispersion containing 25% active material) water qs 100 .sup.(1)sold under the trade name Plascize L-514 by GOO Chemical

(4) Protocol:

(5) 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.

(6) The locks of hair are then combed and dried with a hairdryer.

(7) A straightening iron is then passed over each of the locks five times at a temperature of 190° C.

(8) The hair is dyed uniformly and intensely.

(9) 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.

(10) Shampoo Wash Protocol:

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

(12) The locks of hair are then rinsed, combed and dried with a hairdryer.

(13) Lastly, a straightening iron is then passed over each of the locks five times at a temperature of 190° C.

(14) The next shampoo wash is then performed on the locks obtained after the passes of the straightening iron.

(15) Results:

(16) The resistance of the color of the locks was evaluated in the CIE L*a*b* system, using a Minolta Spectrophotometer CM3600D colorimeter.

(17) 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.

(18) 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.

(19) TABLE-US-00002 Number of shampoo washes L* a* b* ΔE 0 26 1 2 3 33 1 4 7.3 10 38 1 6 12.7

(20) 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.

(21) In addition, the hair is dyed and the locks of hair dyed with the dye composition A and washed with three or ten shampoo washes have low values of ΔE. Thus, 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 persistence.

(22) Makeup-Removing Composition

(23) Compositions (g/100 g)

(24) 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

(25) Protocol:

(26) 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.

(27) 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.

(28) After the three applications of the makeup-removing composition, the locks are placed on absorbent paper and dried with a hairdryer.

(29) Results:

(30) As the number of washes with the makeup-removing composition increases, the hair is rapidly bleached.

Example 2

(31) Dye Composition

(32) Compositions (g/100 g) AM Active Material

(33) TABLE-US-00004 C D Composition (invention) (comparative) Polyquaternium 99 (containing 30% 9 AM (30 g) — active material in ethanol).sup.(1) Acrylates/octylacrylamide copolymer — 9 AM (containing 97% active material in water) .sup.(2) Carbon Black (CI 77266) (in aqueous 12 12 dispersion containing 25% active material) ethanol qs 100 qs 100 .sup.(1)sold under the trade name Plascize L-514 by GOO Chemical .sup.(2) sold under the trade name DERMACRYL 79 by Akzo Nobel

(34) Protocol:

(35) The dye compositions C and D are applied to locks of natural hair containing 90% white hairs in a proportion of 0.5 g of composition per gram of lock.

(36) The locks of hair are then combed and dried with a hairdryer.

(37) A straightening iron is then passed over each of the locks five times at a temperature of 190° C.

(38) The hair is dyed uniformly and intensely.

(39) 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.

(40) Results:

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

(42) 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.

(43) The resistance of the coloring is evaluated by the color difference ΔE between the dyed locks before shampooing, and then after having undergone 3 shampoo washes according to the protocol described in example 1. The lower the value of ΔE, the more shampoo-resistant the color.

(44) TABLE-US-00005 Number of shampoo Composition washes L* a* b* ΔE Composition C 0 21.5 0.4 2 (invention) 3 22.8 0.2 2.1  1.3 Composition D 0 24.3 0 1.6 — (comparative) 3 57.2 0.7 13.7 35.1

(45) The locks of hair dyed with the dye composition C according to the invention and washed with three shampoo washes have lower values of ΔE than the locks of hair dyed with the comparative dye composition D and washed with three shampoo washes. Thus, the colored coating of the keratin fibers dyed with the dye composition C according to the invention is shampoo-resistant. Specifically, the locks of hair dyed with the dye composition C washed with three shampoo washes have a good color persistence.

(46) Makeup-Removing Composition

(47) Protocol:

(48) The locks of hair dyed by the dye compositions C and D are treated with the makeup-removing composition B as described in example 1 once the dyed locks are dry to the touch, in a proportion of 0.5 g of composition B per gram of lock.

(49) The locks of hair dyed by the dye compositions C and D 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.

(50) After the three applications of the makeup-removing composition, the locks are placed on absorbent paper and dried with a hairdryer.

(51) Results:

(52) As the number of washes with the makeup-removing composition increases, the hair dyed with compositions C or D is rapidly bleached.