Dye composition comprising a para-phenylenediamine oxidation base and an amphoteric or cationic polymer in a medium rich in fatty substances

Abstract

The present invention relates to a composition for dyeing keratin fibers, in particular keratin fibers such as the hair, comprising: a) at least one oxidation base 3-(2,5-diaminophenyl)-1-propanol and/or acid salts thereof and/or solvates thereof such as hydrates; b) at least one coupler; c) at least one polymer chosen from cationic polymers and amphoteric polymers, and mixtures thereof; d) at least one fatty substance; the total amount of fatty substances being at least 10%, e) optionally at least one basifying agent; and f) optionally at least one chemical oxidizing agent. The invention also relates to a process for dyeing keratin fibers such as the hair using the composition of the invention, and to a multi-compartment device for using the composition of the invention.

Claims

1. A composition comprising: a) at least one oxidation base chosen from 3-(2,5-diaminophenyl)-1-propanol, acid salts thereof, solvates thereof, or hydrates thereof; b) at least one coupler chosen from meta-phenylenediamines, meta-aminophenols, meta-diphenols, naphthalene-based couplers, heterocyclic couplers, or the addition salts thereof; c) at least one polymer chosen from cationic polymers, amphoteric polymers, or mixtures thereof; d) at least one fatty substance, wherein the total amount of fatty substance is at least 10% by weight, relative to the total weight of the composition; e) optionally at least one basifying agent; and f) optionally at least one chemical oxidizing agent.

2. The composition of claim 1, wherein the at least one oxidation base is present in an amount ranging from about 0.0001% to about 20% by weight, relative to the total weight of the composition.

3. The composition of claim 1, wherein the cationic polymers are chosen from the following families: (1) homopolymers or copolymers derived from acrylic or methacrylic esters or amides and comprising at least one unit of formulae (I) to (III) below: ##STR00017## wherein: R.sub.3, which may be identical or different, is chosen from a hydrogen atom or a CH.sub.3 radical; A, which may be identical or different, are chosen from a linear or branched alkyl group of 1 to 6 carbon atoms or a hydroxyalkyl group of 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 containing from 1 to 18 carbon atoms or a benzyl radical; R.sub.1 and R.sub.2, which may be identical or different, are chosen from a hydrogen atom or an alkyl group containing from 1 to 6 carbon atoms; X.sup. is an anion derived from a mineral or organic acid, (2) cyclopolymers of alkyldiallylamine or of dialkyldiallylammonium comprising at least one unit corresponding to formula (V) or (VI) below: ##STR00018## wherein: k and t are equal to 0 or 1, the sum k+t being equal to 1; R.sub.12 is chosen from a hydrogen atom or a methyl radical; R.sub.10 and R.sub.11, independently of each other, are chosen from an alkyl group containing from 1 to 6 carbon atoms, a hydroxyalkyl group, or a lower (C.sub.1-C.sub.4) amidoalkyl group, or R.sub.10 and R.sub.11 may represent, together with the nitrogen atom to which they are attached, heterocyclic groups; Y.sup. is an anion; and R.sub.10 and R.sub.11, independently of each other, are an alkyl group containing from 1 to 4 carbon atoms, (3) quaternary polymers of vinylpyrrolidone and of vinylimidazole, (4) quaternary diammonium polymers containing repeating units corresponding to formula (VII) below: ##STR00019## wherein: R.sub.13, R.sub.14, R.sub.15, and R.sub.16, which may be identical or different, are chosen from aliphatic, alicyclic, or arylaliphatic radicals containing from 1 to 20 carbon atoms, or C1-C6 lower hydroxyalkyl aliphatic radicals, or R.sub.13, R.sub.14, R.sub.15, and R.sub.16, together or separately, constitute, with the nitrogen atoms to which they are attached, heterocycles optionally comprising a second heteroatom other than the nitrogen, or R.sub.13, R.sub.14, R.sub.15, and R.sub.16 represent a linear or branched C.sub.1-C.sub.6 alkyl radical which is substituted with a nitrile, ester, acyl, amide, or COOR.sub.17-D or CONHR.sub.17-D group wherein R.sub.17 is an alkylene and D is a quaternary ammonium group; A.sub.1 and B.sub.1 are chosen from polymethylene groups containing from 2 to 20 carbon atoms, which may be linear or branched, saturated or unsaturated, and which may contain, linked to or intercalated in the main chain, at least one aromatic ring or at least one oxygen or sulfur atom or sulfoxide, sulfone, disulfide, amino, alkylamino, hydroxyl, quaternary ammonium, ureido, amide, or ester groups; X.sup. is an anion derived from a mineral or organic acid; A.sub.1 R.sub.13, and R.sub.15 may form, with the two nitrogen atoms to which they are attached, a piperazine ring; wherein, if A.sub.1 represents a saturated or unsaturated, linear or branched alkylene or hydroxyalkylene radical, B.sub.1 may also represent a (CH2)n-CO-D-OC(CH2)p- group wherein: n and p, which may be identical or different, are integers ranging from 2 to 20, D is chosen from: a) a glycol residue of formula: OZO, wherein Z is a linear or branched hydrocarbon-based radical or a group corresponding to one of the following formulae:
(CH.sub.2CH.sub.2O).sub.xCH.sub.2CH.sub.2
[CH.sub.2CH(CH.sub.3)O].sub.yCH.sub.2CH(CH.sub.3) wherein x and y are an integer ranging from 1 to 4, representing a defined and unique degree of polymerization or any number from 1 to 4 representing an average degree of polymerization; b) a bis-secondary diamine residue; c) a bis-primary diamine residue of formula: NHYNH, wherein Y is a linear or branched hydrocarbon-based radical, or alternatively the divalent radicalCH.sub.2CH.sub.2SSCH.sub.2CH.sub.2; or d) a ureylene group of formula: NHCONH, (5) polyquaternary ammonium polymers formed from units of formula (VIII): ##STR00020## wherein: R.sub.22, R.sub.23, R.sub.24, and R.sub.25, which may be identical or different, are chosen from a hydrogen atom or a methyl, ethyl, propyl, -hydroxyethyl, -hydroxypropyl, or CH2CH2(OCH2CH2)pOH radical wherein p is equal to 0 or an integer between 1 and 6, wherein R.sub.22, R.sub.23, R.sub.24, and R.sub.25 do not simultaneously represent a hydrogen atom; t and u, which may be identical or different, are chosen from integers between 1 and 6; v is equal to 0 or an integer between 1 and 34; X.sup. is an anion; and A is a radical of a dihalide, (6) polyalkyleneimines, polymers comprising vinylpyridine or vinylpyridinium units, condensates of polyamines and of epichlorohydrin, quaternary polyureylenes, or chitin derivatives, or mixtures thereof.

4. The composition of claim 3, wherein the cationic polymers are chosen from families (2) and (4).

5. The composition of claim 3, wherein the cationic polymers are chosen from cationic cyclopolymers, polymers containing units of formula (VII), or mixtures thereof.

6. The composition of claim 1, wherein the amphoteric polymers are chosen from the following compounds: (1) polymers comprising as monomers at least one monomer derived from a vinyl compound carrying a carboxyl group, and at least one basic monomer derived from a substituted vinyl compound containing at least one basic atom, chosen from the following: a) dialkylaminoalkyl methacrylates, dialkylaminoalkyl acrylates, dialkylaminoalkylmethacrylamides, or dialkylam inoalkylacrylam ides; or b) trialkylaminoalkyl methacrylate salts, trialkylaminoalkyl acrylate salts, or salts of trialkylaminoalkylmethacrylamide and of trialkylaminoalkylacrylamide; (2) polymers comprising units derived from: a) at least one monomer chosen from acrylamides and methacrylamides substituted on the nitrogen with an alkyl radical, b) at least one acidic comonomer containing at least one reactive carboxylic group, and c) at least one basic comonomer; (3) copolymers comprising as monomers at least one monomer derived from a vinyl compound bearing a carboxylic group, and at least one monomer of diallyldialkylammonium salt type, the alkyl groups containing from 1 to 6 carbon atoms; (4) crosslinked and alkylated polyamino amides partially or totally derived from polyamino amides of general formula: ##STR00021## wherein R.sub.10 is chosen from a divalent radical derived from a saturated dicarboxylic acid, a mono- or dicarboxylic aliphatic acid containing an ethylenic double bond, an ester of a lower alkanol containing 1 to 6 carbon atoms of these acids, or a radical derived from the addition of any one of said acids to a bis(primary) or bis(secondary) amine, and Z is a radical derived from a bis(primary), mono- or bis(secondary) polyalkylene-polyamine and represents: a) in proportions of from 60 to 100 mol %, the radical: ##STR00022## wherein x is equal to 2 and p is equal to 2 or 3, or else x is equal to 3 and p is equal to 2, this radical being derived from diethylenetriamine, triethylenetetramine or dipropylenetriamine; b) in proportions of from 0 to 40 mol %, the radical (X) above wherein x is equal to 2 and p is equal to 1 and which is derived from ethylenediamine, or the radical derived from piperazine: ##STR00023## c) in proportions of 0 to 20 mol %, the radical NH(CH.sub.2)6-NH derived from hexamethylenediamine, these polyaminoamines being crosslinked by addition of a difunctional crosslinking agent chosen from epihalohydrins, diepoxides, dianhydrides, bis-unsaturated derivatives, by means of 0.025 to 0.35 mol of crosslinking agent per amine group of the polyaminoamide, and being alkylated by the action of acrylic acid, chloroacetic acid, or an alkane sultone, or salts thereof; (5) polymers comprising zwitterionic units of formula: ##STR00024## wherein: R11 is a polymerizable unsaturated group, y and z are an integer ranging from 1 to 3, R.sub.12 and R.sub.13 are chosen from a hydrogen atom, methyl, ethyl, or propyl, and R.sub.14 and R.sub.15 are chosen from a hydrogen atom or an alkyl radical wherein the sum of the carbon atoms in R.sub.14 and R.sub.15 does not exceed 10; (6) polymers derived from chitosan comprising monomer units corresponding to the following formulae: ##STR00025## wherein unit D is present in proportions ranging from about 0% to about 30%, unit E is present in proportions ranging from about 5% to about 50%, and unit F is present in proportions ranging from about 30% to about 90%, wherein in unit F, R.sub.16 is chosen from a radical of formula: ##STR00026## wherein, if q is equal to 0, R.sub.17, R.sub.18, and R.sub.19, which may be identical or different, each represent a hydrogen atom, a methyl, hydroxyl, acetoxy or amino residue, a monoalkylamine residue or a dialkylamine residue that are optionally interrupted with at least one nitrogen atom or optionally substituted with at least one amine, hydroxyl, carboxyl, alkylthio or sulfonic group, an alkylthio residue wherein the alkyl group bears an amino residue, at least one of the radicals R.sub.17, R.sub.18, and R.sub.19 being, in this case, a hydrogen atom; or, if q is equal to 1, R.sub.17, R.sub.18, and R.sub.19 each represent a hydrogen atom, and also the salts formed by these compounds with bases or acids; (7) polymers derived from the N-carboxyalkylation of chitosan; (8) polymers containing units corresponding to the general formula (XII): ##STR00027## wherein: R.sub.20 is chosen from a hydrogen atom, a CH3O, CH3CH2O, or phenyl group, R.sub.21 is chosen from a hydrogen atom or a lower alkyl radical, R.sub.22 is chosen from a hydrogen atom or a lower alkyl radical, R.sub.23 is chosen from a lower alkyl radical or a radical corresponding to the formula: R24-N(R22)2, wherein R24 is chosen from a CH2CH2, CH2CH2CH2 or CH2CH(CH3)- group, and is chosen from a hydrogen atom or a lower alkyl radical, and wherein the higher homologues of these radicals contain up to 6 carbon atoms; (9) amphoteric polymers of the -D-X-D-X type chosen from: a) polymers obtained by reaction of chloroacetic acid or sodium chloroacetate with compounds comprising at least one unit of formula:
-D-X-D-X-D- (XIII) wherein D is a radical ##STR00028## and X represents the symbol E or E, which may be identical or different, chosen from a divalent radical that is an alkylene radical with a straight or branched chain containing up to 7 carbon atoms in the main chain, which is unsubstituted or substituted with hydroxyl groups and which can comprise, in addition to the oxygen, nitrogen, and sulfur atoms, 1 to 3 aromatic and/or heterocyclic rings; the oxygen, nitrogen and sulfur atoms being present in the form of ether, thioether, sulfoxide, sulfone, sulfonium, alkylamine or alkenylamine groups, hydroxyl, benzylamine, amine oxide, quaternary ammonium, amide, imide, alcohol, ester and/or urethane groups, or b) polymers of formula:
-D-X-D-X(XIV) wherein D is a radical ##STR00029## and X represents the symbol E or E, wherein at least one X represents E, wherein E is chosen from a divalent radical that is an alkylene radical with a straight or branched chain containing up to 7 carbon atoms in the main chain, which is unsubstituted or substituted with hydroxyl groups and which can comprise, in addition to the oxygen, nitrogen, and sulfur atoms, 1 to 3 aromatic and/or heterocyclic rings; the oxygen, nitrogen and sulfur atoms being present in the form of ether, thioether, sulfoxide, sulfone, sulfonium, alkylamine or alkenylamine groups, hydroxyl, benzylamine, amine oxide, quaternary ammonium, amide, imide, alcohol, ester and/or urethane groups and E is a divalent radical that is an alkylene radical bearing a straight or branched chain containing up to 7 carbon atoms in the main chain, which is unsubstituted or substituted with at least one hydroxyl radical and comprising at least one nitrogen atom, the nitrogen atom being substituted with an alkyl chain that is optionally interrupted with an oxygen atom and necessarily comprising at least one carboxyl function or at least one hydroxyl function and betainized by reaction with chloroacetic acid or sodium chloroacetate; (10) (C1-C5)alkyl vinyl ether/maleic anhydride copolymers partially modified by semiamidation with an N,N-dialkylaminoalkylamine or by semiesterification with an N, N-dialkanolamine; or mixtures thereof.

7. The composition of claim 1, wherein the amphoteric polymers are chosen from acrylic acid/acrylamidopropyltrimethylammonium chloride copolymers, acrylic acid/acrylamidopropyltrimethylammonium chloride/acrylamide copolymers, copolymers comprising dimethyldiallylammonium chloride and acrylic acid as monomers optionally combined with acrylamide, or mixtures thereof.

8. The composition of claim 1, wherein the at least one polymer is present in an amount ranging from about 0.01% to about 10% by weight, relative to the total weight of the composition.

9. The composition of claim 1, wherein the at least one fatty substance is chosen from C.sub.6-C.sub.16 hydrocarbons, hydrocarbons containing more than 16 carbon atoms, non-silicone oils of animal origin, plant oils of triglyceride type, synthetic triglycerides, fluoro oils, fatty alcohols, esters of fatty acids, esters of fatty alcohols other than triglycerides and plant waxes, non-silicone waxes, silicones, or mixtures thereof.

10. The composition of claim 1, wherein the at least one fatty substance is chosen from C.sub.6-C.sub.16 hydrocarbons, hydrocarbons containing more than 16 carbon atoms, triglycerides, fatty alcohols, esters of fatty acids, esters of fatty alcohols other than triglycerides, or mixtures thereof.

11. The composition of claim 1, wherein the at least one fatty substance is liquid at room temperature and at atmospheric pressure.

12. The composition of claim 1, wherein the total amount of fatty substance ranges from 15% to 80% by weight, relative to the total weight of the composition.

13. The composition of claim 1, wherein the at least one basifying agent is chosen from ammonia, alkali metal carbonates or bicarbonates, sodium hydroxide or potassium hydroxide, organic amines chosen from alkanolamines, oxyethylenated, or oxypropylenated ethylenediamines, amino acids, compounds of formula (II) below, or mixtures thereof: ##STR00030## wherein: W is a divalent C.sub.1-C.sub.6 alkylene radical optionally substituted with at least one hydroxyl group or a C.sub.1-C.sub.6 alkyl radical, and/or optionally interrupted with at least one heteroatom or NR.sub.u; and R.sub.x, R.sub.y, R.sub.z, R.sub.t, and R.sub.u, which may be identical or different, are chosen from a hydrogen atom or a C.sub.1-C.sub.6 alkyl, C.sub.1-C.sub.6 hydroxyalkyl or C.sub.1-C.sub.6 aminoalkyl radical.

14. The composition of claim 1, wherein the at least one basifying agent is chosen from ammonia or alkanolamines, or neutral or ionic amino acids.

15. The composition of claim 1, wherein the at least one chemical oxidizing agent is hydrogen peroxide.

16. A process for dyeing keratin fibers, comprising: applying to the keratin fibers a composition comprising: a) at least one oxidation base chosen from 3-(2,5-diaminophenyl)-1-propanol acid salts thereof, solvates thereof, or hydrates thereof; b) at least one coupler chosen from meta-phenylenediamines, meta-aminophenols, meta-diphenols, naphthalene-based couplers, heterocyclic couplers, or the addition salts thereof; c) at least one polymer chosen from cationic polymers, amphoteric polymers, or mixtures thereof; d) at least one fatty substance, wherein the total amount of fatty substance is at least 10% by weight, relative to the total weight of the composition; e) optionally at least one basifying agent; and f) optionally at least one chemical oxidizing agent.

17. The process of claim 16, wherein the composition is obtained by mixing at least two compositions, a first composition (A) comprising the at least one oxidation base; and a second composition (B) comprising the at least one chemical oxidizing agent; wherein at least one of the compositions (A) or (B) comprises the at least one polymer; and wherein the amount of the at least one fatty substance in the composition resulting from the mixing of compositions (A) and (B) is greater than 30% by weight, relative to the weight of the composition derived from the mixing of (A) and (B).

18. The process of claim 17, wherein the composition applied to the fibers comprises a third composition comprising the at least one fatty substance.

19. A multi-compartment device comprising: a first compartment containing composition (A) comprising at least one oxidation base chosen from 3-(2,5-diaminophenyl)-1-propanol, acid salts thereof, solvates thereof, or hydrates thereof; and a second compartment containing composition (B) comprising at least one chemical oxidizing agent; wherein at least one of the compositions (A) or (B) comprises at least one polymer chosen from cationic polymers, amphoteric polymers, or mixtures thereof, and at least one fatty substance; wherein the total amount of fatty substance is present in the composition resulting from the mixing of compositions (A) and (B) in an amount of at least 10% by weight, relative to the weight of the composition derived from the mixing of (A) and (B).

Description

EXAMPLE

Example 1

(1) The following compositions have been prepared in which the amounts are expressed in grams of active materials.

(2) Dye Compositions (g %)

(3) TABLE-US-00001 Chemical name A B Sodium metabisulfite 0.45 0.45 Monoethanolamine 5.83 5 Ethylenediaminetetraacetic acid 0.2 0.2 1-Methyl-2-hydroxy-4-- 0.22 hydroxyethylaminobenzene 1--Hydroxyethyloxy-2,4-diaminobenzene 0.031 dihydrochloride 2-Methyl-1,3-dihydroxybenzene (2- 0.3 methylresorcinol) 1-3-Dihydroxybenzene (resorcinol) 0.96 1-Hydroxy-3-aminobenzene 0.15 Purified 5-amino-6-chloro-o-cresol 0.25 2,3-Diamino-6,7-dihydro-1H,5H-pyrazolo[1,2- 1.2 a]pyrazol-1-one dimethanesulfonate 2-[(3-Aminopyrazolo[1,5-a]pyridin-2- 0.13 yl)oxy]ethanol hydrochloride 3-(2,5-Diaminophenyl)propan-1-ol hydrochloride 2.5 0.2 Mineral oil (petroleum jelly) 60 60 Polyquaternium-67 (Softcat Polymer SL-100 from 0.19 0.19 Amerchol) Deionized water 17.069 19.47 Oxyethylenated stearyl alcohol (2 OE) 1.13 1.13 Oxyethylenated stearyl alcohol (20 OE) 3.88 3.88 (50/50 C.sub.8/C.sub.10) Alkyl (2)-polyglucoside as a 60% 2.4 2.4 aqueous solution (Oramix CG 110 from SEPPIC) Oxyethylenated sorbitan monolaurate (4 OE) 2.4 2.4 Vitamin C 0.25 0.25

(4) Oxidizing Composition C (g %)

(5) TABLE-US-00002 C Pentasodium pentetate 0.06 Hydrogen peroxide 6 Sodium stannate 0.04 Phosphoric acid qs pH = 2.2 Tetrasodium pyrophosphate 0.03 Mineral oil (petroleum jelly) 20 Hexadimethrine chloride (Mexomere PO from 0.15 Chimex) Polyquaternium-6 (Merquat-100 from Nalco) 0.2 Water qs 100 Glycerol 0.5 Cetearyl alcohol 6 Steareth-20 5 PEG-4 Rapeseedamide 1.2 Tocopherol 0.1

(6) At the time of use, each of the compositions A and B is mixed with one time its own weight of oxidizing composition C.

(7) The mixtures thus obtained are applied to natural hair containing 90% white hairs.

(8) After a leave-on time of 35 minutes at room temperature, the hair is rinsed and washed with a standard shampoo.

(9) After drying, a beautiful light-chestnut shade is obtained on the hair with formula A and a natural coppery-red dark blond shade is obtained with formula B.

Example 2

(10) The following compositions have been prepared in which the amounts are expressed in grams of active materials.

(11) TABLE-US-00003 B B invention comparative Sodium metabisulfite 0.45 0.45 Monoethanolamine 4 4 Ethylenediaminetetraacetic acid 0.2 0.2 6-HYDROXY BENZOMORPHOLINE 0.04 0.04 1-BETA-HYDROXYETHYLOXY-2,4- 0.16 0.16 DIAMINOBENZENE 2 Hcl 2-METHYL-1,3-DIHYDROXYBENZENE 0.17 0.17 (2-METHYL RESORCINOL) Para aminophenol 0.13 0.13 1,3-DIHYDROXYBENZENE 0.21 0.21 (RESORCINOL) 1-HYDROXY-3-AMINO-BENZENE 0.16 0.16 3-(2,5-DIAMINOPHENYL)PROPAN- 4.18 10.sup.3 1-OL HCl mol 2-2 hydroxyethyl para phenylenediamine 4.18 10.sup.3 mol MINERAL OIL 60 60 PERFUME 0.72 0.72 Cationic Hydroxyethylcellulose 0.19 am* 0.19 am (Polyquaternium-67) SOFTCAT SL-100 WATER qs qs Oxyethylenated stearyl alcohol 1.13 1.13 (2 OE) Oxyethylenated stearyl alcohol 3.88 3.88 (20 OE) (50/50 C.sub.8/C.sub.10) Alkyl (2)-polyglucoside 2.4 am 2.4 am as a 60% aqueous solution (Oramix CG 110 from SEPPIC) Oxyethylenated sorbitan monolaurate 2.4 2.4 (4 OE) Vitamin C 0.25 0.25 *Active material

(12) At the time of use, each composition B and B is mixed with the oxidizing composition C of example 1 at a weight ratio of 1/1.

(13) The resulting mixture are each applied on natural hair locks (BN), which represents the hair root, and permed hair locks (BP), which represents the hair tips, in an amount of 10 g of composition per 1 g of hair, and left for 35 minutes at room temperature (25 C.).

(14) Then the hair was rinsed with water, washed with the Pro Classics concentrated shampoo (L'Oral Professionnel), diluted at 10%, and dried.

(15) Selectivity Evaluation

(16) The color of the hair was determined using the CIE L*a*b* system with a Minolta CM2006D spectrophotometer (illuminant D65, angle 10, specular component included) in the CIELab system.

(17) According to this system, L* indicates the lightness of the color of the hair.

(18) The chromaticity coordinates are expressed by the parameters a* and b*, a* indicating the axis of red/green shades and b* the axis of yellow/blue shades.

(19) The selectivity of the dyeing is measured by calculating the variation of E according to the formula:
E={square root over ((L*L.sub.0*).sup.2+(a*a.sub.0*).sup.2+(b*b.sub.0*).sup.2)}

(20) In which L, a* and b* represent the values measured on medium sensibilized hair and L0*, a0* and b0* represent the values measured on highly sensibilized hair.

(21) The selectivity is represented by the difference of color between the colored natural hair and sensibilized hair: the more is the E value, the more the difference of color between natural and sensibized hair is important, which is representative of the homogeneity of the coloration between the raw and the tips along the lock of hair.

(22) The following results are obtained:

(23) TABLE-US-00004 Hair type L* a* b* E B + C BN 22.14 1.16 0.36 3.85 (invention) BP 18.39 0.54 0.24 B + C BN 26.24 2.18 2.04 5.94 (comparative) BP 20.64 1.28 0.28

(24) The mixtures B+C according to the invention provide less selective colorations (lower E value) than the mixture of compositions B+C (comparative): the difference between the raw and the tips is lower with B+C than with B+C: the coloration along the lock of hair is more homogenous with B+C.

Example 3

(25) The following compositions have been prepared in which the amounts are expressed in grams of active materials.

(26) TABLE-US-00005 D D (inv) (comp) Ethanolamine 4 4 SODIUM LAURYL ETHER 2.5 2.5 SULFATE (2.2 OE) 28% in aqueous solution HYDROXYETHYL CELLULOSE 2.5 2.5 (PM: 1.300.000) Vitamine C 0.5 0.5 1-METHYL-2-HYDROXY-4- 0.5 0.5 BETA-HYDROXYETHYL- AMINOBENZENE 1-METHYL-2-HYDROXY-4- 0.5 0.5 AMINO-BENZENE 1,3-DIHYDROXYBENZENE 0.2 0.2 (RESORCINOL) 2,3-DIAMINO-6,7-DIHYDRO- 4.04 .Math. 10.sup.3 4.04 .Math. 10.sup.3 1H,5H-PYRAZOLO[1,2- mol mol A]PYRAZOL-1-ONE DIMETHANESULFONATE 3-(2,5-DIAMINOPHE- 3.43 10.sup.3 NYL)PROPAN-1-OL- mol HYDROCHLORIDE 2-2 hydroxyethyl para 3.43 10.sup.3 phenylenediamine mol SEQUESTRANT 2 2 Coco-betaine 3 am 3 am REDUCING AGENT 0.5 0.5 Oxyethylenated stearyl 0.1 0.1 alcohol (2 OE) Oxyethylenated stearyl 0.1 0.1 alcohol (20 OE) Mineral oil 60 60 PEG-40 hydrogenated 1 1 castor oil Water Qsp 100 Qsp 100

(27) Oxidizing Composition E (g %)

(28) TABLE-US-00006 E Hydrogen peroxide 6 Etidronic acid teratrasodic salt in aqueous solution 0.2 (30%) Tetrasodium pyrophosphate 0.04 Sodium salicylate 0.035 DIMETHYL DIALLYL AMMONIUM CHLORIDE/ 0.74 ACRYLIC ACID COPOLYMER (80/20) as a 60% aqueous solution in water (Merquat 280) Caprylyl/capryl polyglucoside as a 60% aqueous 3 solution Water qs 100 Glycerol 4

(29) At the time of use, each composition D and D is mixed with the oxidizing composition E of example 1 at a weight ratio of 1/1.

(30) The resulting mixture are each applied on natural hair locks (BN), which represents the hair root, and permed hair locks (BP), which represents the hair tips, in an amount of 10 g of composition per 1 g of hair, and left for 35 minutes at room temperature (25 C.).

(31) Then the hair was rinsed with water, washed with the Pro Classics concentrated shampoo (L'Oral Professionnel), diluted at 10%, and dried.

(32) The selectivity is evaluated according to the protocole of example 2.

(33) The following results are obtained:

(34) TABLE-US-00007 Hair type L* a* b* E D + E BN 26.87 15.16 10.56 9.32 (inv) BP 20.95 10.57 5.02 D + E BN 29.58 18.40 13.71 12 (comp) BP 21.81 12.78 6.49

(35) The mixtures D+E according to the invention provide less selective colorations (lower E value) than the mixture of compositions D+E (comparative): the difference between the raw and the tips is lower with D+E than with D+E: the coloration along the lock of hair is more homogenous with D+E.