Composition for dyeing keratin fibers and its use

Abstract

A dye set comprising: (A) a dyeing composition (A); and (B) a pyrazolone composition (B) comprising a blocking combination of a pyrazolone compound and a reducing agent.

Description

Technical Field

[0001] The present invention relates to compositions for dyeing keratin fibres, in particular human keratin fibres, such as the hair.

[0002] background

[0003] Many people have long tried to change the color of their hair and in particular to dye it, for example to cover their gray hair.

[0004] In order to dye human keratin fibers in a long-lasting manner, "permanent" dyeing methods, also called oxidation dyeing, have been developed using colorant compositions containing oxidation dye precursors, generally known as oxidation bases, such as o- or p-phenylenediamines, o- or p-aminophenols and heterocyclic compounds. These oxidation bases are colorless or weakly colored compounds, which, when combined with oxidizing products, can give rise to colored compounds via oxidative condensation processes.

[0005] The dyeing product may contain both at least one oxidation dye and at least one oxidizing agent. For better use, the oxidation dye and the oxidizing agent may be placed separately in a multi-compartment package and mixed together just before use.

[0006] Consumers wish to use dyes to dye only the target area. However, in many cases, for example, when dyeing hair, some other areas may be dyed (stained) undesirably, such as hands, face, ears, etc. Consumers have to pay more attention to avoiding undesirable areas and are always looking for products that help them deal with undesirable dyeing. Various antioxidants are used in products for various purposes. However, it is still unknown which component can and how to achieve effective avoidance of undesirable staining caused by dyes at a technically acceptable level (for example, being enough to avoid staining, balancing avoiding staining and effective dyeing, etc.). In addition, for many antioxidants or other useful active components, their stability, especially stability over time, is one of the main challenges in this area. SUMMARY OF THE INVENTION

[0008] The inventors have now discovered that the use of a specific retarding combination of a retarder and a reducing agent together with oxidation dyes makes it possible to obtain a composition for oxidative dyeing of keratin fibers that overcomes the above-mentioned disadvantages, in particular reduces or even substantially avoids undesirable staining of non-target locations by dyes. Furthermore, the specific retarding combination exhibits excellent stability, for example minimizing the loss of the amount of one or more subject components over time.

[0009] A subject of the present invention is therefore a dye set for the oxidative dyeing of keratin fibers, comprising:

[0010] (A) a dyeing composition (A); and

[0011] (B) A pyrazolone composition (B) comprising a retardant combination of a pyrazolone compound and a reducing agent.

[0012] Optionally, the pyrazolone composition (B) is placed in a separate room from the dyeing composition (A).

[0013] According to one embodiment of the present invention, the dyeing composition (A) may further comprise:

[0014] (I) A colorant composition (I) comprising:

[0015] i) at least one oxidation dye; and

[0016] (II) A developer composition (II), comprising:

[0017] ii) at least one color developer.

[0018] Optionally, a pyrazolone composition (B) comprising a retarding combination of a pyrazolone compound and a reducing agent is placed in the composition (I).

[0019] The present invention provides a retarding combination of a pyrazolone compound and a reducing agent, which can be used to slow down the reaction of a dye or its intermediate.

[0020] The present invention thus provides the use of a pyrazolone compound used as a retardant in combination with a reducing agent for slowing down the reaction of a dye or an intermediate thereof.

[0021] The present invention also provides the use of the blocking combination for reducing dye staining.

[0022] The invention also relates to a method for dyeing keratin fibers, in particular human keratin fibers such as the hair, using the dye set according to the invention.

[0023] The invention also relates to a method for slowing down the reaction of a dye or an intermediate thereof, characterized in that a retardation combination is mixed with the dye. Preferably, the retardation combination is mixed with the dye before applying the dye, or the retardation combination is applied to a location where the dye has been applied for less than 10 minutes, less than 5 minutes or less than 3 minutes.

[0024] Specific embodiments of the present invention

[0025] Throughout the specification (including the claims), unless otherwise mentioned, the term "comprising one / one" should be understood as being synonymous with "comprising at least one / one". In addition, the phrase "at least one / one" used in this specification is equivalent to the phrase "one / one or more / one".

[0026] Throughout the specification (including the claims), embodiments defined with "comprising" and the like should be understood to encompass preferred embodiments defined with "consisting essentially of" and preferred embodiments defined with "consisting of."

[0027] Throughout the specification, including the claims, "keratin fibers" according to the invention are hair, eyelashes, eyebrows or body hair. Preferably, the keratin fibers according to the invention are hair.

[0028] In the present application, unless explicitly mentioned otherwise, contents, parts and percentages are expressed on a weight basis.

[0029] Throughout the specification, including the claims, the term "retardant" refers to an agent that is capable of slowing down the reaction of a dye or its intermediates, such as a reaction with a developer, such as an oxidation reaction therebetween. For purposes of the present invention, "retarding combination" and the like are used interchangeably with "retardant".

[0030] According to the present invention, "reducing staining" means reducing staining that occurs in undesirable areas, such as hands, face, scalp, ears, rinse water, towels, floors, etc. Preferably, the effect lasts for at least 5 minutes after dyeing the hair, more particularly 10 minutes, even more preferably 15 minutes, or 20 minutes.

[0031] A subject of the present invention is to provide a retardation combination which can be used to slow down the reaction of a dye or an intermediate thereof, which consists of:

[0032] Pyrazolone compounds, and

[0033] reducing agent.

[0034] A subject of the present invention is to provide a dye set for oxidative dyeing of keratin fibers, comprising:

[0035] (A) A dyeing composition (A) comprising:

[0036] (I) A colorant composition (I) comprising:

[0037] i) at least one oxidation dye; and

[0038] as well as

[0039] (B) A pyrazolone composition (B), which comprises a retardant combination of a pyrazolone compound and a reducing agent.

[0040] The dye set according to the present invention may further comprise: (II) a developer composition (II) comprising ii) at least one oxidizing agent.

[0041] The dye set of the invention is intended for use in a method of dyeing keratin fibres.

[0042] The subject of the present invention is thus a process for dyeing keratin fibers, which consists in mixing, just before use, a colorant composition (I) with a composition (II) of a dyeing composition (A) to obtain a dye mixture, optionally adding to the dye mixture a pyrazolone composition (B) comprising a retarding combination of a pyrazolone compound and a reducing agent, and applying the dye set of the invention to the keratin fibers.

[0043] In a variant embodiment according to the invention, the pyrazolone compound can be added directly to the colorant composition (I).

[0044] Other characteristics and advantages of the invention will emerge more clearly on reading the following description and examples.

[0045] Except in the operating examples, or where otherwise indicated, all numbers expressing amounts of ingredients and / or reaction conditions are to be understood as being modified in all instances by the term "about," meaning within 10% of the indicated number (e.g., "about 10%" means 9%-11%, and about "2%" means 1.8%-2.2%).

[0046] The dyeing composition (A) placed in the kit according to the invention comprises a colorant composition (I) and a developer composition (II).

[0047] According to one embodiment of the present invention, the colorant composition (I) and the developer composition (II) may be used in a weight ratio of 1:3 to 3:1, preferably 1:2 to 2:1, or preferably 2:3 to 1:1.

[0048] Colorant composition (I)

[0049] The dyeing composition (A) placed in the kit according to the invention comprises a colorant composition (I).

[0050] The colorant composition (I) of the composition (A) according to the invention may comprise at least one oxidation dye.

[0051] Oxidation dyes

[0052] As indicated above, the colorant composition (I) according to the invention comprises as component i) one or more oxidation dyes.

[0053] Oxidation dyes useful herein are generally selected from oxidative chromophores in combination with one or more couplers.

[0054] The one or more oxidation dyes preferably comprise one or more oxidation chromophores.

[0055] The oxidized chromophore may be chosen in particular from p-phenylenediamines, bis(phenyl)alkylenediamines, p-aminophenols, o-aminophenols, heterocyclic bases, and addition salts thereof, and mixtures thereof.

[0056] Among the p-phenylenediamines, unsubstituted p-phenylenediamine or p-phenylenediamine substituted with 1 or 2 C1-C4 alkyl groups is preferred. Examples include p-phenylenediamine, 2-chloro-p-phenylenediamine, 2-methyl-p-phenylenediamine, 2,3-dimethyl-p-phenylenediamine, 2,6-dimethyl-p-phenylenediamine, 2,6-diethyl-p-phenylenediamine, and 2,5-dimethyl-p-phenylenediamine. Other p-phenylenediamines can also be used, such as N,N-dimethyl-p-phenylenediamine, N,N-diethyl-p-phenylenediamine, N,N-dipropyl-p-phenylenediamine, 4-amino-N,N-diethyl-3-methylaniline, N,N-bis(β-hydroxyethyl)-p-phenylenediamine, 4-N,N-bis(β-hydroxyethyl)amino-2-methylaniline, 4-N,N-bis(β-hydroxyethyl)amino-2-chloroaniline, 2-β-hydroxyethyl-p-phenylenediamine, 2-fluoro-p-phenylenediamine, 2-isopropyl-p-phenylenediamine, N-(β-hydroxypropyl)-p-phenylenediamine, 2-hydroxymethyl-p-phenylenediamine, N ,N-dimethyl-3-methyl-p-phenylenediamine, N,N-(ethyl-β-hydroxyethyl)-p-phenylenediamine, N-(β,γ-dihydroxypropyl)-p-phenylenediamine, N-(4'-aminophenyl)-p-phenylenediamine, N-phenyl-p-phenylenediamine, 2-β-hydroxyethoxy-p-phenylenediamine, 2-β-acetylaminoethoxy-p-phenylenediamine, N-(β-methoxyethyl)-p-phenylenediamine, 4-aminophenylpyrrolidine, 2-thienyl-p-phenylenediamine, 2-β-hydroxyethylamino-5-aminotoluene and 3-hydroxy-1-(4'-aminophenyl)pyrrolidine and their acid addition salts.

[0057] From the class of bis(phenyl)alkylenediamines, examples that may be mentioned include N,N′-bis(β-hydroxyethyl)-N,N′-bis(4′-aminophenyl)-1,3-diaminopropanol, N,N′-bis(β-hydroxyethyl)-N,N′-bis(4′-aminophenyl)ethylenediamine, N,N′-bis(4-aminophenyl)tetramethylenediamine, N,N′-bis(β-hydroxyethyl)-N,N′-bis(4-aminophenyl)tetramethylenediamine, N,N′-bis(4-methylaminophenyl)tetramethylenediamine, N,N′-bis(ethyl)-N,N′-bis(4′-amino-3′-methylphenyl)ethylenediamine, 1,8-bis(2,5-diaminophenoxy)-3,6-dioxaoctane and addition salts thereof.

[0058] In the p-aminophenol class, unsubstituted p-aminophenol or the p-aminophenol substituted by 1 or 2 C1-C4 alkyl is preferred.Wherein, the example that can be mentioned comprises p-aminophenol, 4-amino-3-methylphenol and 4-amino-2-methylphenol.Other p-phenylenediamines that can also be used include 4-amino-3-fluorophenol, 4-amino-3-chlorophenol, 4-amino-3-hydroxycresol, 4-amino-2-hydroxycresol, 4-amino-2-methoxycresol, 4-amino-2-aminocresol, 4-amino-2-(β-hydroxyethyl-aminomethyl)phenol and 4-amino-2-fluorophenol and the addition salt thereof with acid.

[0059] From the class of ortho-aminophenols, examples which may be mentioned include 2-aminophenol, 2-amino-5-methylphenol, 2-amino-6-methylphenol and 5-acetamido-2-aminophenol and the addition salts thereof.

[0060] Among the heterocyclic chromophores, examples which may be mentioned include pyridine derivatives, pyrimidine derivatives and pyrazole derivatives.

[0061] Pyridine derivatives which may be mentioned are especially the compounds described, for example, in patents GB 1 026 978 and GB 1 153 196, such as 2,5-diaminopyridine, 2-(4-methoxyphenyl)amino-3-aminopyridine and 3,4-diaminopyridine and addition salts thereof.

[0062] Other pyridinium oxide chromophores that can be used in the present invention are 3-aminopyrazolo[1,5-a]pyridinium oxide chromophores or addition salts thereof, as described, for example, in patent application FR 2 801 308. Examples that may be mentioned include pyrazolo[1,5-a]pyridin-3-ylamine, 2-(acetylamino)pyrazolo[1,5-a]pyridin-3-ylamine, 2-(morpholin-4-yl)pyrazolo[1,5-a]pyridin-3-ylamine, 3-aminopyrazolo[1,5-a]pyridine-2-carboxylic acid, 2-methoxypyrazolo[1,5-a]pyridin-3-ylamine, (3-aminopyrazolo[1,5-a]pyridin-2-carboxylic acid, 2-methoxypyrazolo[1,5-a]pyridin-3-ylamine, 2-(3-aminopyrazolo[1,5-a]pyridin-7-yl)ethanol, 2-(3-aminopyrazolo[1,5-a]pyridin-5-yl)ethanol, 2-(3-aminopyrazolo[1,5-a]pyridin-7-yl)ethanol, (3-aminopyrazolo[1,5-a]pyridin-2-yl)methanol, 3,6-diaminopyrazolo[1,5-a]pyridine, 3,4-diaminopyrazolo[1,5-a]pyridine a]pyridine, pyrazolo[1,5-a]pyridine-3,7-diamine, 7-(morpholin-4-yl)pyrazolo[1,5-a]pyridine-3-ylamine, pyrazolo[1,5-a]pyridine-3,5-diamine, 5-(morpholin-4-yl)pyrazolo[1,5-a]pyridine-3-ylamine, 2-[(3-aminopyrazolo[1,5-a]pyridine-5-yl)(2-hydroxyethyl) [(3-aminopyrazolo[1,5-a]pyridine-7-yl)(2-hydroxyethyl)amino]ethanol, 3-aminopyrazolo[1,5-a]pyridine-5-ol, 3-aminopyrazolo[1,5-a]pyridine-4-ol, 3-aminopyrazolo[1,5-a]pyridine-6-ol, 3-aminopyrazolo[1,5-a]pyridine-7-ol and their addition salts.

[0063] Pyrimidine derivatives which may be mentioned are especially the compounds described, for example, in patents DE 2359399; JP 88-169571; JP 05-63124; EP 0770375 or in patent application WO 96 / 15765, such as 2,4,5,6-tetraaminopyrimidine, 4-hydroxy-2,5,6-triaminopyrimidine, 2-hydroxy-4,5,6-triaminopyrimidine, 2,4-dihydroxy-5,6-diaminopyrimidine, 2,5,6-triaminopyrimidine and addition salts thereof and (when tautomeric equilibrium exists) their tautomeric forms.

[0064] Pyrazole derivatives which may be mentioned are especially those of patents DE 3843892 and DE 4133957 and patent applications WO 94 / 08969, WO 94 / 08970, FR-A-2 733 749 and DE 195 43 Compounds described in 988, such as 4,5-diaminopyrazole, 4,5-diamino-1-methylpyrazole, 4,5-diamino-1-(β-hydroxyethyl)pyrazole, 3,4-diaminopyrazole, 4,5-diamino-1-(4'-chlorobenzyl)pyrazole, 4,5-diamino-1,3-dimethylpyrazole, 4,5-diamino-3-methyl-1-phenylpyrazole, 4,5-diamino-1-methyl-3-phenylpyrazole, 4-amino-1,3-dimethyl-5-hydrazinopyrazole, 1-benzyl-4,5-diamino-3-methylpyrazole, 4,5-diamino-3-tert-butyl-1-methylpyrazole, 4,5-diamino-1-tert-butyl-3-methylpyrazole, 4,5-diamino-1-(β-hydroxyethyl)-3- Methylpyrazole, 4,5-diamino-1-ethyl-3-methylpyrazole, 4,5-diamino-1-ethyl-3-(4'-methoxyphenyl)pyrazole, 4,5-diamino-1-ethyl-3-hydroxymethylpyrazole, 4,5-diamino-3-hydroxymethyl-1-methylpyrazole, 4,5-diamino-3-hydroxymethyl-1-isopropylpyrazole, 4,5-diamino-3-methyl-1-isopropylpyrazole, 4-amino-5-(2'-aminoethyl)amino-1,3-dimethylpyrazole, 3,4,5-triaminopyrazole, 1-methyl-3,4,5-triaminopyrazole, 3,5-diamino-1-methyl-4-methylaminopyrazole and 3,5-diamino-4-(β-hydroxyethyl)amino-1-methylpyrazole and addition salts thereof. 4,5-diamino-1-(β-methoxyethyl)pyrazole can also be used.

[0065] Preferably, 4,5-diaminopyrazoles will be used, for example 4,5-diamino-1-hydroxyC1-C4-alkylpyrazole, and even more preferably 4,5-diamino-1-(β-hydroxyethyl)pyrazole and / or its salts, especially its sulfate.

[0066] The oxidation dye(s) may also comprise one or more couplers which may be chosen from those conventionally used for dyeing keratin fibres.

[0067] Among these coupling agents, there can be mentioned in particular metaphenylenediamines, metaaminophenols, resorcinols, naphthalene-based coupling agents, heterocyclic coupling agents and addition salts thereof, and mixtures thereof. In particular, unsubstituted metaaminophenol or metaaminophenol substituted with 1 or 2 C1-C4 alkyl groups, unsubstituted resorcinol or resorcinol substituted with 1 or 2 C1-C4 alkyl groups, diaminophenols, or unsubstituted hydroxyindole, amino-substituted hydroxypyridine, or hydroxybenzomorpholine can be preferably used.

[0068] Examples that may be mentioned include 1-hydroxy-3-aminobenzene, 1-methyl-2-hydroxy-4-aminobenzene, 1,3-dihydroxybenzene, 1,3-dihydroxy-2-methylbenzene, 5-amino-6-chloro-o-cresol, 2-methyl-5-hydroxyethylaminophenol, 4-chloro-1,3-dihydroxybenzene, 2,4-diamino-1-(β-hydroxyethoxy)benzene, 2-amino-4-(β-hydroxyethylamino)-1-methoxybenzene, 1,3-diaminobenzene, 1,3-bis(2,4-diaminophenoxy)propane, 3-ureidoaniline, 3-ureido-1-dimethylaminobenzene, sesamol, 1-β-hydroxyethylamino-3,4-methylenedioxybenzene, α-naphthol, 2-methyl-1-naphthol, 6-hydroxyindole, 4-hydroxyindole, 4-hydroxy-N-methylindole, 2-amino-3-hydroxypyridine, 6-hydroxybenzomorpholine, 3, 5-Diamino-2,6-dimethoxypyridine, 1-N-(β-hydroxyethyl)amino-3,4-methylenedioxybenzene, 2,6-bis(β-hydroxyethylamino)toluene, 6-hydroxyindoline, 2,6-dihydroxy-4-methylpyridine, 1-H-3-methylpyrazol-5-one, 1-phenyl-3-methylpyrazol-5-one, 2,6-dimethylpyrazolo[1,5-b]-1,2,4-triazole, 2,6-dimethyl[3,2-c]-1,2,4-triazole and 6-methylpyrazolo[1,5-a]benzimidazole, their acid addition salts and mixtures thereof, such as their chlorhydrates or dichlorhydrates, for example 1-β-hydroxyethoxy-2,4-diamino-benzene dihydrochloride (2,4-diaminophenoxyethanol HCL).

[0069] Typically, the addition salts of the oxidized chromophores and coupling agents that can be used in the context of the present invention are chosen especially from addition salts with acids such as hydrochlorides, hydrobromides, sulfates, citrates, succinates, tartrates, lactates, toluenesulfonates, benzenesulfonates, phosphates and acetates.

[0070] In the first exemplary embodiment of the oxidized chromophore, examples include unsubstituted p-phenylenediamine or p-phenylenediamine substituted with 1 or 2 C1-C4 alkyl groups.

[0071] In the second exemplary embodiment of the oxidized chromophore, examples include unsubstituted p-aminophenol or p-aminophenol substituted with 1 or 2 C1-C4 alkyl groups, particularly unsubstituted p-aminophenol.

[0072] In the third exemplary embodiment of the oxidation chromophore, examples include 4,5-diaminopyrazoles, and for example, 4,5-diamino-1-hydroxy C1-C4 alkylpyrazole, or a salt thereof will be preferably used.

[0073] As the oxidized chromophores, particular mention may be made of unsubstituted p-aminophenol or p-aminophenol substituted by 1 or 2 C1-C4-alkyl groups.

[0074] In particular, for the coupling agent, unsubstituted m-aminophenol or m-aminophenol substituted with 1 or 2 C1-C4 alkyl groups, unsubstituted resorcinol or resorcinol substituted with 1 or 2 C1-C4 alkyl groups, diaminophenols or unsubstituted hydroxyindole, amino-substituted hydroxypyridine, or hydroxybenzomorpholine can be preferably used.

[0075] When unsubstituted hydroxyindole, amino-substituted hydroxypyridine, or hydroxybenzomorpholine is used as the coupling agent, it is preferably used in combination with the oxidizing chromophore according to the second exemplary embodiment.

[0076] When the oxidized chromophore according to the third exemplary embodiment of the oxidized chromophore is used, it is preferably used in combination with an amino-substituted hydroxypyridine as a coupling agent.

[0077] Furthermore, a combination of 2-amino-3-hydroxypyridine as a coupling agent and the oxidized chromophore according to the second exemplary embodiment, or a combination of 5-amino-6-chloro-o-cresol as a coupling agent and the oxidized chromophore according to the second exemplary embodiment may be mentioned alone.

[0078] Among them, the combination of 4,5-diamino-1-(β-hydroxyethyl)pyrazole sulfate as an oxidizing chromophore and 2-amino-3-hydroxypyridine as a coupling agent is particularly mentioned.

[0079] The oxidative chromophore or chromophores may advantageously represent from 0.0001% to 10% by weight, preferably from 0.005% to 5% by weight and better still from 0.1% to 5% by weight relative to the total weight of composition (I).

[0080] If present, the coupling agent(s) may advantageously represent from 0.0001% to 10% by weight and preferably from 0.005% to 5% by weight relative to the total weight of composition (I).

[0081] Antioxidants

[0082] The colorant composition (I) may contain an antioxidant.

[0083] Antioxidants used may include natural exogenous phytochemical antioxidants such as phenols and carotenoids.

[0084] Antioxidants can include flavonoids. Flavonoids constitute a large class of more than 5,000 polyphenolic phytochemicals with antioxidant properties that act by direct free radical scavenging. Flavonoids have anti-inflammatory, antibacterial, antiviral, antiallergic, antimutagenic, antithrombotic, antitumor and vasodilatory effects, and these modes of action can also be used to prevent, reduce or eliminate oxidative damage from dental instruments. Flavonoids also exhibit chelating properties with metal ions and can reduce oxidative damage from metal ions by chelating ions. The formation and stability of flavonoid-metal chelates depends on the functionality of the structure. Flavonoids with a catechol moiety and a hydrogen bond between the hydroxyl groups at the 5-position and the 3-position have chelating properties.

[0085] Vitamin C and derivatives can be used, including ascorbic acid, erythorbic acid or its derivatives, such as sodium ascorbate / erythorbic acid and fat-soluble esters tetrahexyldecyl ascorbate / tetrahexyldecyl isoascorbate and ascorbyl palmitate, magnesium ascorbyl phosphate, ascorbyl glucoside, glucosamine ascorbate / salt, ascorbyl acetate, etc. In addition, plants containing large amounts of vitamin C, such as extracts of Camu (Myrciaria dubia), Acerola, Emblica officinalis, and bioflavonoids from rose hips and citrus, including water-soluble bioflavonoids such as hesperidin methyl chalcone, can also be used.

[0086] Sesame seeds (Sesamum indicum) or lignans may also be added. Sesame seeds and their lignans (fibrous compounds associated with sesame seeds) act as antioxidants. Sesame seed lignans significantly enhance vitamin E activity.

[0087] Other antioxidants that can be incorporated into the compositions of the present invention include tocopherols (e.g., d-α-tocopherol, d-β-tocopherol, d-γ-tocopherol, d-δ-tocopherol), tocotrienols (e.g., d-α-tocotrienol, d-β-tocotrienol, d-γ-tocotrienol, d-δ-tocotrienol) and vitamin E (α-tocopherol acetate). These compounds can be isolated from natural sources, prepared by synthetic means, or mixed. A tocotrienol-rich vitamin E preparation can be obtained by fractionating the vitamin E preparation to remove a portion of the biophenols and recovering a higher concentrated tocotrienol product. Available tocotrienols are natural products that are separated from wheat germ oil, grains or palm oil using high performance liquid chromatography or separated from barley, wine dregs or oats by alcohol extraction and / or molecular distillation. The term "tocotrienols" as used herein includes tocotrienol-rich fractions obtained from these natural products as well as pure compounds. Increased glutathione peroxidase activity protects the skin from oxidative damage.

[0088] In addition, carotenoids, especially xanthophyll types, are also useful antioxidants that can be used. Xanthophyll-type carotenoids include molecules such as lutein, canthaxantin, cryptoxanthin, zeaxanthin, and astaxanthin. Lutein compounds protect compounds such as vitamin A, vitamin E, and other carotenoids.

[0089] Flavonoids can be flavanones (derivatives of 2,3-dihydro-2-phenylbenzopyran-4-one). Flavanones include: apigenin, eriocin, hesperetin, hesperidin, sylvestre, isosakuretene, naringenin, naringin, pinocin, tangrin (tangerine), sakuranetin, sakura glycoside, and 7-O-methylergophenol (Sterubin).

[0090] Flavonoids can be dihydroflavonols (derivatives of 3-hydroxy-2,3-dihydro-2-phenylbenzopyran-4-one). Flavanols include: Taxifolin, Aromadedrin, Chrysandroside A, Chrysandroside B, Xeractinol, Astilbin and Flavonols.

[0091] The flavonoids may be flavonoids (derivatives of 2-phenylbenzopyran-4-one). Flavonoids include: apigenin, luteolin, tangeretin, chrysin, baicalein, baicalein, wogonin, synthetic flavonoids: diosmin, and flavonoid esters.

[0092] Flavonoids may be flavonols (derivatives of 3-hydroxy-2-phenylbenzopyran-4-one). Flavonols include: 3-hydroxyflavone, rhodoxanthin, quercetin, galangin, cotton dermatan, kaempferol, kaempferol, isorhamnetin, mulberry red pigment, myricetin, naringin (Natsudaidain), Muskyl flavonol (Pachypodol), quercetin, methyl rhamnosin, rhamnetin, azalein, hyperoside, isoquercetin, kaempferol, myricetin, suedeGlycosides, robinin, rutin, spiraea, xanthorhamnin, amurensin, icariin, and tracuridine.

[0093] The flavonoids may be flavan-3-ols (derivatives of 2-phenyl-3,4-dihydro-2H-benzopyran-3-ol). Flavan-3-ols include: catechin, epicatechin, epigallocatechin, epicatechin gallate, epigallocatechin gallate, epicatechin, fisetinidol, guiboutinidol, mesquitol, and robinetinidol.

[0094] The flavonoid may be a flavan-4-ol (a derivative of 2-phenylchroman-4-ol). Flavan-4-ols include: Apiforol and Luteoforol.

[0095] Flavonoids can be isoflavones (derivatives of 3-phenylbenzopyran-4-one). Isoflavones include: genistein, daidzein, garbanin A, formononetin, and equol metabolites derived from daidzein.

[0096] The antioxidant may be anthocyanin (a derivative of 2-phenylbenzopyranoside cation). Anthocyanins include: Aurantinidin, Cyanidin, Delphinidin, Europinidin, Luteolinidin, Pelargonidin, Malvidin, Peonyidin (Peonidin), Petunidin, Rosinidin and xanthones.

[0097] The antioxidant may be a dihydrochalcone (a derivative of 1,3-diphenyl-1-propanone). Dihydrochalcone includes: phloretin, dihydrochalcone phloridin, cisplatin, Aspalathin, naringin dihydrochalcone, neohesperidin dihydrochalcone and Nothofagin. The mode of action of the present invention is not limited, but dihydrochalcone may act as an antioxidant by reducing active free radicals, such as active oxygen and active nitrogen species.

[0098] The antioxidant may be anthocyanin. Anthocyanin and its derivatives are antioxidants. Anthocyanin comprises a class of flavonoid compounds that are responsible for the red, purple and blue colors of many fruits, vegetables, grains and flowers, and is a naturally occurring water-soluble compound. In addition, anthocyanin is a collagenase inhibitor. Inhibition of collagenase helps prevent and reduce wrinkles caused by reduced skin collagen, improve skin elasticity, etc. Anthocyanin can be obtained from any part of various plant sources, such as fruits, flowers, stems, leaves, roots, bark or seeds. Those skilled in the art will recognize that certain parts of plants may contain higher natural levels of anthocyanin, and therefore use these parts to obtain the desired anthocyanin. In some cases, the antioxidant may include one or more betaines. Betaine (betatin), similar to anthocyanin, is available from natural sources and is an antioxidant.

[0099] The antioxidant may be a phenylpropanoid (derivative of cinnamic acid). Phenylpropanoids include: cinnamic acid, caffeic acid, ferulic acid, trans-ferulic acid (including its antioxidant pharmacore 2,6-dihydroxyacetophenone, acetophenome), 5-hydroxyferic acid, sinapic acid, coumarin, coniferyl alcohol, sinapyl alcohol, eugenol, chavicol, baicalein, p-coumaric acid and sinapic acid. Without limiting the mode of action of the present invention, phenylpropanoids may neutralize free radicals.

[0100] The antioxidant may be a chalcone (a derivative of 1,3-diphenyl-2-propene-1-one). Chalcone includes: zirconium oxide, coreopsis chalcone (Okanin), safflower, marein, sophoradin, xanthohumol, flavokvain A, flavokvain B, flavokavain C and synthetic safalcone.

[0101] The antioxidant may be a curcuminoid. Curcuminoids include: curcumin, demethoxycurcumin, bisdemethoxycurcumin, tetrahydrocurcumin and tetrahydrocurcumin. Curcumin and tetrahydrocurcumin may be derived from the rhizome of turmeric. Tetrahydrocurcumin (a metabolite of curcumin) has been found to be a more potent antioxidant than curcumin and more stable.

[0102] The antioxidant may be tannins, which include tannins, Terflavin B, Glucogallin, Dgallic acid, and Quercitannic acid.

[0103] The antioxidant may be a stilbenoid. Subclasses include: resveratrol, stilbene and taxol. Resveratrol may include, but is not limited to, 3,5,4'-trihydroxyindole, 3,4,3',5'-tetrahydroxyindole (cetotriol), 2,3',4,5'-tetrahydroxyindole (oxidized resveratrol), 4,4'-dihydroxyindole and their alpha and beta glucoside, galactoside and mannoside derivatives.

[0104] The antioxidant may be a coumarin (a derivative of 2H-benzopyran-2-one). Coumarin includes: 4-hydroxycoumarin, umbelliferone, aesculetin, hernialin, auraptene and dicoumarol.

[0105] The antioxidant may be a carotenoid. Carotenoids include beta-carotene, alpha-carotene, gamma-carotene, beta-cryptoxanthin, lycopene, lutein and idebenone.

[0106] The antioxidant may be a vitamin or a derivative thereof. Vitamins include: retinol, ascorbic acid or isoascorbic acid, L-ascorbic acid, tocopherol, tocotrienol and vitamin cofactor: coenzyme Q10.

[0107] Antioxidants can be: xanthone, butylated hydroxytoluene, 2,6-di-tert-butylphenol, 2,4-dimethyl-6-tert-butylphenol, gallic acid, eugenol, uric acid, alpha-lipoic acid, ellagic acid, chicoric acid, chlorogenic acid, rosmarinic acid, salicylic acid, acetylcysteine, S-allylcysteine, barbigerone, chebulagic acid acid), edaravone, ethoxyquin, glutathione, hydroxytyrosol, idebenone, melatonin, N-acetyl serotonin, nordihydroguaiaretic acid, Oleotonhal, oleuropein, paradol, paclitaxel, probucol, propyl gallate, protocatechuic acid, pyrithione, rutin, flax lignan diglucoside, sesamoid, sesamol, silybin, silymarin, theaflavins, theaflavins digallate, thymoquinone, water-soluble vitamins (Trolox), tyrosol, polyunsaturated fatty acids, and sulfur-based antioxidants such as methionine or lipoic acid.

[0108] The above antioxidants, including reducing agents, are preferably used according to the invention in an amount which may be 0.001 to 10 wt %, preferably 0.1 to 7 wt %, more preferably 0.5 to 5 wt %, relative to the total weight of the colorant composition (I).

[0109] Surfactants

[0110] The colorant composition (I) according to the invention may comprise one or more surfactants, such as in particular anionic surfactants and / or nonionic surfactants.

[0111] Anionic surfactants

[0112] The colorant composition (I) according to the present invention may further comprise one or more anionic surfactants.

[0113] The term "anionic surfactant" refers to a surfactant that contains only anionic groups as ionic groups or ionizable groups. These anionic groups are preferably selected from the following groups:

[0114] -COOH, -COO - 、-SO3H、-SO3 - 、-OSO3H、-OSO3 - 、-PO2H2、-PO2H - ,-PO2 2- , -P(OH)2, =P(O)OH, -P(OH)O - =P(O)O - 、=POH、=PO - , the anion portion comprises a cationic counterion, such as an alkali metal, alkaline earth metal or ammonium.

[0115] As examples of anionic surfactants which can be used in the colorant composition (I) according to the invention, mention may be made of alkyl sulfates, alkyl ether sulfates, alkyl amido ether sulfates, alkyl aryl polyether sulfates, glycerol monoester sulfates, alkyl sulfonates, alkyl amide sulfonates, alkyl aryl sulfonates, α-olefin sulfonates, paraffin sulfonates, alkyl sulfosuccinates, alkyl ether sulfosuccinates, alkylamide sulfosuccinates, alkyl sulfoacetates, acyl sarcosinates, acyl glutamates, alkyl sulfosuccinamates, acyl isethionates and N-acyl taurates, polyglycoside polycarboxylic acids and alkyl monoester salts, acyl lactylates, D-galactoside uronates, alkyl ether carboxylates, alkyl aryl ether carboxylates, alkyl amido ether carboxylates, and the corresponding non-salt-forming forms of all these compounds; the alkyl and acyl radicals of all these compounds containing 6 to 40 carbon atoms and the aryl radical being a phenyl radical.

[0116] These compounds may be oxyethylenated and then preferably comprise 1 to 50 ethylene oxide units.

[0117] Polyglycosides-polycarboxylic acids C6-C 24The salt of the alkyl monoester can be selected from C6-C 24 Alkyl polyglycoside-citrate, C6-C 24 Alkyl polyglycoside-tartrate and C6-C 24 Alkyl polyglycoside-sulfosuccinate.

[0118] When the one or more anionic surfactants are in salt form, they may be selected from alkali metal salts, such as sodium or potassium salts, and preferably sodium salts, ammonium salts, amine salts, and especially amino alcohol salts, or alkaline earth metal salts, such as magnesium salts.

[0119] Examples of aminoalcohol salts that may be mentioned in particular include the salts of monoethanolamine, diethanolamine and triethanolamine, the salts of monoisopropanolamine, diisopropanolamine or triisopropanolamine, 2-amino-2-methyl-1-propanol salts, 2-amino-2-methyl-1,3-propanediol salts and tris(hydroxymethyl)aminomethane salts.

[0120] Preference is given to using alkali metal or alkaline earth metal salts, and in particular sodium or magnesium salts.

[0121] Preferred anionic surfactants are selected from (C6-C 30 ) alkyl sulfate, (C6-C 30 ) alkyl ether sulfate, (C6-C 30 ) alkyl amido ether sulfates, alkyl aryl polyether sulfates and monoglyceride sulfates, all of which optionally contain 1 to 20 ethylene oxide units; and more preferably selected from (C 12 -C 20 ) alkyl sulfate and (C 12 -C 20 ) alkyl ether sulfates, especially in the form of alkali metal, ammonium, amino alcohol and alkaline earth metal salts, or mixtures of these compounds. Even better, preference is given to using polyoxyethylated sodium lauryl ether sulfates, such as sodium lauryl ether sulfates containing 2 or 2.2 mol of ethylene oxide.

[0122] The anionic surfactants of the present invention are preferably sulfates, more particularly selected from (C6-C 30 ) alkyl sulfate, (C6-C 30 ) alkyl ether sulfate, (C6-C 30 ) alkyl amido ether sulfates, alkyl aryl polyether sulfates and monoglyceride sulfates, their salts, such as alkali metal salts, such as sodium salts, and mixtures thereof.

[0123] The anionic surfactant of the present invention is more preferably selected from (C6-C 30 ) alkyl sulfate, (C6-C 30 ) alkyl ether sulfates, especially (C6-C30 ) Alkyl ether sulfates, such as lauryl ether sulfate, and their salts, such as sodium laureth sulfate.

[0124] The amount of the anionic surfactant(s) in the colorant composition (I) according to the invention is from 0.01 to 10% by weight relative to the total weight of the composition (I).

[0125] Nonionic surfactants

[0126] The colorant composition (I) according to the present invention may further contain one or more nonionic surfactants.

[0127] For example, in MR Porter's Handbook of Surfactants One or more nonionic surfactants that may be used in the compositions are described in , Blackie & Son (Glasgow and London), 1991, pp. 116-178.

[0128] Examples of nonionic surfactants that may be mentioned include the following:

[0129] - Oxidized (C8-C 24 ) alkylphenol;

[0130] - Saturated or unsaturated, linear or branched, oxyalkylated or glycerolated C8-C 40 alcohol;

[0131] - Saturated or unsaturated, linear or branched, oxyalkylened C8-C 30 Fatty acid amides;

[0132] - Saturated or unsaturated, straight or branched chain C8-C 30 Esters of acids and polyethylene glycols;

[0133] - Saturated or unsaturated, straight or branched chain C8-C 30 Esters of an acid and sorbitol, which are preferably oxyethylenated;

[0134] - fatty acid esters of sucrose;

[0135] - (C8-C 30 ) alkyl (poly) glucoside, (C8-C 30 )alkylene (poly)glucoside, which is optionally oxyalkylenated (0 to 10 oxyalkylene units) and contains 1 to 15 glucose units, (C8-C 30 ) alkyl (poly) glucoside esters;

[0136] - saturated or unsaturated oxyethylated vegetable oils;

[0137] - in particular condensates of ethylene oxide and / or propylene oxide, alone or in mixtures;

[0138] - N-(C8-C 30 ) alkyl glucosamine and N-(C8-C 30 ) acylmethylglucosamine derivatives;

[0139] - aldobionamides;

[0140] - amine oxides;

[0141] - oxyethylenated and / or oxypropylenated silicones;

[0142] - and mixtures thereof.

[0143] Unless specifically mentioned, the terms "oxyalkylenated", "oxyethylenated", "oxypropyleneated" and "glycerolated" cover mono- or polyoxyalkylenated, oxyethylenated, oxypropyleneated and glycerolated compounds, respectively.

[0144] The oxyalkylene units are more particularly oxyethylene or oxypropylene units or a combination thereof, preferably oxyethylene units.

[0145] The number of moles of ethylene oxide and / or propylene oxide is preferably from 1 to 250, more particularly from 2 to 100 and even better from 2 to 50; the number of moles of glycerol is especially from 1 to 50 and even better from 1 to 10.

[0146] Advantageously, the nonionic surfactant according to the invention does not comprise any propylene oxide units.

[0147] As an example of a glycerolated nonionic surfactant, preferably used are monoglycerolated or polyglycerolated C8-C60-1, C8-1, C8-2, C8-3, C8-4, C8-5, C8-6, C8-7, C8-8, C8-9, C8-10, C8-11, C8-12, C8-13, C8-14, C8-15, C8-16, C8-17, 40 alcohol.

[0148] As examples of compounds of this type, mention may be made of lauryl alcohol containing 4 mol of glycerol (INCI name: POLYGLYCERYL-4 LAURYL ETHER), lauryl alcohol containing 1.5 mol of glycerol, oleyl alcohol containing 4 mol of glycerol (INCI name: POLYGLYCERYL-4 OLYL ETHER), oleyl alcohol containing 2 mol of glycerol (INCI name: POLYGLYCERYL-2 OLYL ETHER), cetearyl alcohol containing 2 mol of glycerol, cetearyl alcohol containing 6 mol of glycerol, oleyl / cetyl alcohol containing 6 mol of glycerol and stearyl alcohol containing 6 mol of glycerol.

[0149] Among the glycerolated alcohols, it is particularly preferred to use C8 / C 10Alcohol, C containing 1 mol of glycerol 10 / C 12 alcohol and C containing 1.5 moles of glycerol 12 alcohol.

[0150] The additional nonionic surfactant(s), when present in the colorant composition (I) according to the invention, is preferably present in a total amount of 0.01 to 1 wt.-%, relative to the total weight of the composition.

[0151] Solvents

[0152] The colorant composition (I) according to the invention may advantageously comprise one or more solvents, for example water and / or organic solvents.

[0153] water

[0154] The colorant composition (I) according to the invention advantageously comprises water.

[0155] The water content in the dye composition (I) according to the invention is preferably 40 to 95% by weight, more preferably 50 to 90% by weight, or 60 to 80% by weight, relative to the total weight of the composition (I).

[0156] Organic solvents

[0157] The colorant composition (I) according to the invention may further comprise one or more water-soluble organic solvents (solubility at 25° C. and at atmospheric pressure greater than or equal to 5%).

[0158] Examples of water-soluble organic solvents that may be mentioned include linear or branched and preferably saturated mono- or diols containing 2 to 10 carbon atoms, such as ethanol, isopropanol, hexanediol (2-methyl-2,4-pentanediol), neopentyl glycol and 3-methyl-1,5-pentanediol, butanediol, dipropylene glycol and propylene glycol; aromatic alcohols, such as phenethyl alcohol; polyols containing more than two hydroxyl functions, such as glycerol; polyol ethers, such as ethylene glycol monomethyl, monoethyl and monobutyl ether, propylene glycol or its ethers, such as propylene glycol monomethyl ether; and diethylene glycol alkyl ethers, in particular C1-C4-alkyl ethers, such as diethylene glycol monoethyl ether or monobutyl ether, alone or as a mixture.

[0159] When present, the water-soluble organic solvent generally accounts for 1 to 20 wt %, and preferably 3 to 15 wt %, or 4 to 10 wt %, relative to the total weight of the colorant composition (I) according to the invention.

[0160] Alkali

[0161] The colorant composition (I) according to the present invention may further comprise one or more alkali agents.

[0162] The alkaline agent or agents may in particular be chosen from ammonia, alkali metal carbonates or bicarbonates, organic amines having a pKb at 25° C. of less than 12, in particular less than 10, and even more advantageously less than 6; from the salts of the above-mentioned amines with acids such as carbonic acid or hydrochloric acid: it should be noted that this is the pKb corresponding to the functions with the highest basicity.

[0163] Preferably, the composition (I) according to the present invention may contain no or substantially no ammonia.

[0164] Preferably, the amine is chosen from alkanolamines, in particular alkanolamines comprising a primary, secondary or tertiary amine function and one or more linear or branched C1-C8 alkyl groups carrying one or more hydroxyl groups; from oxyethylenated and / or oxypropylenated ethylenediamines, and from amino acids and compounds of the formula:

[0165]

[0166] wherein W is a C1-C6 alkylene residue optionally substituted by a hydroxyl group or a C1-C6 alkyl group; Rx, Ry, Rz and Rt may be the same or different and represent a hydrogen atom or a C1-C6 alkyl group, a C1-C6 hydroxyalkyl group or a C1-C6 aminoalkyl group.

[0167] According to one embodiment of the invention, the colorant composition (I) according to the invention comprises at least one alkanolamine and / or at least one basic amino acid, more advantageously at least one alkanolamine, such as ethanolamine, or a mixture thereof.

[0168] Advantageously, the content of the one or more alkaline agents is from 0.01% to 30% by weight, preferably from 0.1% to 20% by weight, or from 1% to 10% by weight or 5% by weight relative to the total weight of the composition (I). It should be noted that when the alkaline agent is aqueous ammonia, this content is expressed as NH3.

[0169] The pH of the composition (I) of the present invention is preferably 6-11, preferably 7-10, and more preferably 8-9.

[0170] The pH can be adjusted by adding acidifying agents, such as hydrochloric acid, (ortho)phosphoric acid, sulfuric acid, boric acid and carboxylic acids, for example acetic acid, lactic acid or citric acid, or sulfonic acids.Alkaline agents, such as those mentioned above, can also be used.

[0171] Fat phase

[0172] The colorant composition (I) according to the invention may also comprise cosmetically acceptable fatty substances.

[0173] According to one particular embodiment, the fatty substance contains no carboxylic acid groups.

[0174] The term "fatty substances" refers to organic compounds that are insoluble in water at normal temperature (25°C) and atmospheric pressure (760 mmHg) (solubility less than 5%, preferably 1%, and more preferably 0.1%). They may preferably have at least two siloxane groups or at least one sequence of hydrocarbon-based chains containing at least 6 carbon atoms in their structure. Furthermore, fatty substances are generally soluble in organic solvents such as chloroform, ethanol, benzene or decamethylcyclopentasiloxane under the same temperature and pressure conditions.

[0175] The fatty substances are chosen especially from lower alkanes, fatty alcohols, fatty acid esters, fatty alcohol esters, oils, in particular mineral, vegetable, animal or synthetic non-silicone oils, non-silicone waxes and silicones.

[0176] It is reiterated that for the purposes of the present invention, fatty alcohols, fatty esters and fatty acids contain more particularly one or more linear or branched, saturated or unsaturated hydrocarbon-based radicals containing 6 to 30 carbon atoms, which are optionally substituted in particular with one or more, in particular 1 to 4, hydroxyl groups. If they are unsaturated, these compounds may contain 1 to 3 conjugated or non-conjugated carbon-carbon double bonds.

[0177] As regards the lower alkanes, these alkanes contain from 6 to 16 carbon atoms and are linear or branched, optionally cyclic. For example, the alkanes may be selected from hexane and dodecane, isoparaffins such as isohexadecane and isodecane.

[0178] As non-silicone oils that can be used in the composition of the invention, examples that may be mentioned include:

[0179] - hydrocarbon-based oils of animal origin, such as perhydrosqualene;

[0180] - hydrocarbon-based oils of vegetable origin, such as liquid fatty acid triglycerides containing from 6 to 30 carbon atoms, for example heptanoic or caprylic triglycerides, or, for example, sweet almond oil, sunflower oil, corn oil, soybean oil, zucchini oil, grapeseed oil, sesame oil, hazelnut oil, almond oil, macadamia oil, arara oil, castor oil, avocado oil, caprylic / capric triglycerides, for example those sold by the company Stéarineries Dubois or those sold under the name Miglyol® 810, 812 and 818 by the company Dynamit Nobel, jojoba oil and shea butter;

[0181] - straight-chain or branched hydrocarbons having more than 16 carbon atoms and of inorganic or synthetic origin, such as liquid paraffin, petrolatum, liquid petrolatum, polydecene and hydrogenated polyisobutene, such as Parleam®;

[0182] - Fluorinated oils, such as perfluoromethylcyclopentane and perfluoro-1,3-dimethylcyclohexane, sold under the names Flutec® PC1 and Flutec® PC3 by BNFL Fluorochemicals; perfluoro-1,2-dimethylcyclobutane; perfluoroalkanes, such as dodecafluoropentane and tetradecafluorohexane, sold under the names PF 5050® and PF 5060® by 3M or bromoperfluorooctyl, sold under the name Foralkyl® by Atochem; nonafluoromethoxybutane and nonafluoroethoxyisobutane; perfluoromorpholine derivatives, such as 4-trifluoromethylperfluoromorpholine, sold under the name PF 5052® by 3M.

[0183] The fatty alcohols that can be used in the composition according to the invention are not oxyalkylenated. They are saturated or unsaturated, linear or branched and contain from 6 to 30 carbon atoms and more particularly from 8 to 30 carbon atoms. Mention may be made of cetyl alcohol, stearyl alcohol and mixtures thereof (cetostearyl alcohol), octyldodecanol, 2-butyloctanol, 2-hexyldecanol, 2-undecylpentadecanol, oleyl alcohol or linoleyl alcohol.

[0184] The esters that can be used are saturated or unsaturated, linear or branched C1-C 26 Aliphatic monoacids or polyacids with saturated or unsaturated, straight-chain or branched C1-C 26 Esters of aliphatic mono- or polyols, the total carbon number of the esters being more particularly greater than or equal to 10.

[0185] Among the monoesters, mention may be made of dihydroabietyl behenate; octyldodecyl behenate; isocetyl behenate; cetyl lactate; lactic acid C 12 -C 15 Alkyl esters; Isostearyl lactate; Lauryl lactate; Linoleyl lactate; Oleyl lactate; Caprylic (iso)stearyl; Isocetyl caprylate; Octyl caprylate; Cetyl caprylate; Decyl oleate; Isocetyl isostearate; Isocetyl laurate; Isocetyl stearate; Isodecyl caprylate; Isodecyl oleate; Isononyl isononanoate; Isostearyl palmitate; Methylacetyl ricinoleate; Myristyl stearate; Octyl isononanoate; 2-ethylhexyl isononanoate; Octyl palmitate; Octyl nonanoate ; Octyl stearate; Octyldodecyl erucate; Oleyl erucate; Ethyl and isopropyl palmitate, 2-ethylhexyl palmitate, 2-octyldecyl palmitate, alkyl myristates such as isopropyl myristate, butyl myristate, hexadecyl myristate, 2-octyldodecyl myristate, myristyl myristate or stearyl myristate, hexyl stearate, butyl stearate, isobutyl stearate; Dioctyl malate, hexyl laurate, 2-hexyldecyl laurate.

[0186] Still within the scope of this variant, the C4-C 22Dicarboxylic or tricarboxylic acids with C1-C 22 Esters of alcohols and mono-, di- or tricarboxylic acids and C2-C 26 Esters of di-, tri-, tetra- or pentahydric alcohols.

[0187] The following may be mentioned in particular: diethyl sebacate; diisopropyl sebacate; diisopropyl adipate; di-n-propyl adipate; dioctyl adipate; diisostearyl adipate; dioctyl maleate; glyceryl undecylenate; octyldodecyl stearoyl stearate; pentaerythrityl monoricinoleate; pentaerythrityl tetraisononanoate; pentaerythrityl tetranonanoate; pentaerythrityl tetraisostearate; pentaerythrityl tetraoctanoate; propylene glycol dicaprylate; propylene glycol dicaprate; tridecyl erucate; triisopropyl citrate; triisostearyl citrate; glyceryl trilactate; tricaprylyl; trioctyldodecyl citrate; trioleyl citrate; propylene glycol dicaprylate; neopentyl glycol diheptanoate; diethylene glycol diisononanoate; ethylene glycol distearate; diethylene glycol distearate and polyethylene glycol distearate.

[0188] The composition may also contain C6-C 30 And preferably C 12 -C 22 Sugar esters and diesters of fatty acids are used as fatty esters. To reiterate, the term "sugar" refers to oxygen-containing hydrocarbon-based compounds containing several alcohol functions, with or without aldehyde or ketone functions and comprising at least 4 carbon atoms. These sugars can be monosaccharides, oligosaccharides or polysaccharides.

[0189] Examples of suitable sugars that may be mentioned include sucrose (or sucrose), glucose, galactose, ribose, fucose, maltose, fructose, mannose, arabinose, xylose and lactose and derivatives thereof, in particular alkyl derivatives such as methyl derivatives, for example methylglucose.

[0190] Sugar esters of fatty acids may be selected in particular from the aforementioned sugars and linear or branched, saturated or unsaturated C6-C 30 , and preferably C 12 -C 22 Esters or ester mixtures of fatty acids. If they are unsaturated, these compounds may contain from 1 to 3 conjugated or nonconjugated carbon-carbon double bonds.

[0191] The esters according to this variant may also be chosen from monoesters, diesters, triesters, tetraesters and polyesters and mixtures thereof.

[0192] These esters may be chosen, for example, from oleate, laurate, palmitate, myristate, behenate, cocoate, stearate, linoleate, linolenate, caprate and arachidonate or mixtures thereof, in particular such as oleyl palmitate, oleostearate and palmitostearate mixed esters.

[0193] Very particular preference is given to using monoesters and diesters and in particular mono- or dioleates, stearates, behenates, oleopalmitates, linoleates, linolenates and oleostearates of sucrose, glucose or methylglucose.

[0194] Advantageously, the content of fatty substance(s) ranges from 0.01% to 45% by weight, preferably from 0.1% to 30% by weight, or from 1% to 15% by weight relative to the total weight of composition (I).

[0195] Adjuvant

[0196] The colorant composition (I) according to the invention may also comprise one or more cosmetic adjuvants.

[0197] For example, composition (I) may contain one or more additives known in the art, such as anionic, nonionic or amphoteric polymers or mixtures thereof, anti-hair loss agents, vitamins and provitamins, including panthenol, derivatives (particularly esters) of these vitamins and mixtures thereof; sunscreens, inorganic or organic pigments, chelating agents, plasticizers, solubilizers, acidulants, sunscreens, hydroxy acids, pearlescent agents, fragrances and preservatives.

[0198] Needless to say, the skilled person will take care to select the optional additional compound(s) so that the advantageous properties inherently associated with the present invention are not or not substantially adversely affected by the contemplated addition(s).

[0199] The above-mentioned adjuvants may each generally be present in an amount of 0 to 20% by weight, or 0 to 10% by weight, relative to the total weight of the composition (I).

[0200] The composition (I) according to the invention may be in the form of a fluid or thickened liquid, a gel or a cream.

[0201] Color developer composition (II)

[0202] The dyeing composition (A) placed in the kit according to the invention comprises a developer composition (II).

[0203] According to one embodiment of the present invention, the developer composition (II) is placed separately from the colorant composition (I).

[0204] Oxidants

[0205] Composition (II) of composition (A) according to the invention comprises at least one oxidizing agent.

[0206] The developer composition (II) of the present invention may contain one or more oxidants usually used as one of the active components of the composition (II). The term "oxidant" means an oxidant other than atmospheric oxygen. More particularly, the oxidant is selected from hydrogen peroxide, urea peroxide, alkali metal bromates, peroxide salts such as persulfates or perborates, peracids and their precursors, and alkali metal or alkaline earth metal salts; or polymeric complexes capable of releasing hydrogen peroxide.

[0207] Advantageously, the oxidizing agent is hydrogen peroxide.

[0208] The concentration of the oxidizing agent may be 0.1 wt % to 50 wt %, more preferably 0.5 wt % to 20 wt %, even more preferably 1 wt % to 15 wt %, based on the weight of composition (II).

[0209] Solvents

[0210] The developer composition (II) of the present invention may contain one or more solvents, such as water and / or an organic solvent. Useful solvents may be selected from those discussed above for the "solvent" of the composition (I).

[0211] The compositions (I) and (II) of the dyeing composition (A) may be independently prepared using the same or different solvents.

[0212] When water is used as a solvent in the developer composition (II) according to the present invention, it is preferably used in an amount of 40 to 95 wt %, more preferably 50 to 90 wt %, or 60 to 85 wt %, relative to the total weight of the composition (II).

[0213] Examples of water-soluble organic solvents that may be mentioned include polyols containing more than two hydroxyl functions, such as glycerol.

[0214] When present, the water-soluble organic solvent generally accounts for 0.01 to 10% by weight, and preferably 0.1 to 5% by weight, relative to the total weight of the colorant composition (I) according to the invention.

[0215] Surfactants

[0216] The developer composition (II) according to the present invention may contain one or more surfactants, such as anionic surfactants and / or nonionic surfactants, preferably nonionic surfactants. Useful surfactants may be selected from those discussed above for the "surfactant" of composition (I).

[0217] Chelating agents

[0218] The colorant composition (I) and / or the developer composition (II) of the dyeing composition (A) according to the invention may comprise at least one chelating agent.

[0219] According to the present invention, useful chelating agents include aminocarboxylic acids, such as ethylenediaminetetraacetic acid (EDTA), aminotriacetic acid, diethylenetriaminepentaacetic acid, and in particular their alkali metal salts, such as N,N-bis(carboxymethyl)glutamic acid, tetrasodium EDTA, tetrasodium salt of N,N-bis(carboxymethyl)glutamic acid (glutamic acid diacetic acid, GLDA); hydroxycarboxylic acids, such as citric acid, tartaric acid, glucuronic acid, succinic acid, ethylenediaminedisuccinic acid (EDDS), and in particular their alkali metal salts; hydroxyaminocarboxylic acids, such as hydroxyethylethylenediaminetriacetic acid (HEDTA), dihydroxyethylglycine (DEG), and in particular their alkali metal salts; polyphosphonic acids, and in particular their alkali metal salts; other phosphorus-containing organic acids, such as phytic acid, and in particular their alkali metal salts, such as sodium phytate, potassium phytate; polycarboxylic acids such as polyacrylic acid, polymethacrylic acid, and in particular their alkali metal salts.

[0220] In one embodiment, at least one water-soluble chelating agent is an alkali metal hydroxypolycarboxylate represented by an alkane containing 1 to 4 carbon atoms, preferably 2 or 3 carbon atoms, substituted by 1, 2 or 3 hydroxyl groups (-OH), preferably one (1) hydroxyl group, and further substituted by 2, 3, 4 or 5 carboxylate groups (-COOM), preferably 2 or 3 carboxylate groups (-COOM), wherein multiple groups M independently represent H or an alkali metal, provided that at least one group M represents an alkali metal, such as Na, K or Li, preferably all groups M represent an alkali metal, such as Na, K or Li, preferably Na. More specifically, at least one alkali metal hydroxypolycarboxylate can be selected from sodium tartrate, sodium citrate, potassium tartrate, potassium citrate and their hydrates, preferably sodium citrate, especially trisodium citrate. In this article, sodium citrate is used to represent monosodium citrate, disodium citrate and trisodium citrate, and other alkali metal hydroxypolycarboxylates can be understood in a similar manner.

[0221] The alkali metal mentioned above is particularly preferably sodium or potassium, especially sodium. Accordingly, the preferred chelating agent may comprise sodium citrate, tetrasodium EDTA, tetrasodium GLDA, trisodium EDDS, sodium phytate or a mixture thereof.

[0222] In particular, composition (I) and / or composition (II) of the present invention may comprise at least one water-soluble chelating agent in an amount of 0.01% to 1% by weight, especially 0.1% to 0.4% by weight, relative to the total weight of the second composition.

[0223] Pyrazolone composition (B)

[0224] In addition to the dyeing composition (A) comprising the colorant composition (I) and the developer composition (II), the dye set according to the present invention may also comprise a pyrazolone composition (B) comprising a retarding combination of a pyrazolone compound and a reducing agent.

[0225] Pyrazolone compounds

[0226] The pyrazolone compound is preferably a pyrazolone substituted by at least one aryl group and / or at least one alkyl group, preferably a C1-C4 alkyl group; provided that the number of aryl and alkyl substituents does not exceed 3. Preferably, the aryl group is an unsubstituted phenyl group or a phenyl group substituted by at least one alkyl group, preferably a C1-C4 alkyl group. For example, the pyrazolone compound can be a pyrazolone substituted by at least one phenyl group and at least one C1-C4 alkyl group, such as a pyrazolone substituted by 1 phenyl group and 1 methyl group, a pyrazolone substituted by 1 phenyl group and 1 ethyl group, etc. Among them, phenylmethylpyrazolone (PMP) can be mentioned, such as 3-methyl-1-phenyl-5-pyrazolone.

[0227] The pyrazolone compound according to the invention is generally present in an amount of 0.01% to 10% by weight, more preferably 0.1% to 5% by weight, and even more particularly 0.3% to 3% by weight, or preferably 0.5% to 2% by weight, relative to the total weight of composition (I) and / or composition (II).

[0228] reducing agent

[0229] The pyrazolone composition (B) may contain a reducing agent to protect PMP and improve its stability.

[0230] According to the present invention, the reducing agent that can be used may include sodium thiosulfate, sodium pyrosulfite, ammonium thiourea sulfite, thioglycolic acid (TGA), thiolactic acid, ammonium thiolactic acid, mono-carbothioic acid diglycidyl ester, ammonium thioformate acetate, thioglycerol, dithioglycolic acid, diammonium carbothioic strontium acetate, thioglycolate, isooctyl carbothioate, isooctyl), cysteine, cysteamine, homocysteine, glutathione, thiomalic acid, 2-mercaptopropionic acid, 3-mercaptopropionic acid, thiodiglycol, 2-mercaptoethanol, dithiothreitol, thioxanthine, thiosalicylic acid, thiopropionic acid, lipoic acid, N-acetylcysteine ​​and its salts; ammonium thioglycolate, monothioglycolic acid glyceryl or a mixture thereof.

[0231] Examples of preferred reducing agents which may be mentioned are thioorganic acids including thioglycolic acid, dimercaptoacetic acid, thiolactic acid, thiomalic acid or mixtures thereof.

[0232] For the blocking combination, the reducing agent is used in an amount in excess of the pyrazolone compound by weight. For example, the reducing agent can be used in a weight ratio to the pyrazolone compound of 1.1:1 to 10:1, preferably 2:1 to 5:1.

[0233] Addition form of pyrazolone composition (B)

[0234] As mentioned above, the inventors surprisingly found that pyrazolone compositions (B) comprising a retarding combination of a pyrazolone compound and a reducing agent can be used to slow down the reaction of dyes or their intermediates (eg, oxidation dyes i) useful in composition (I)).

[0235] That is, the retardation combination acts primarily on the reaction of the dye. Thus, for a dye set, the pyrazolone composition (B) can be added directly to the dyeing composition (A), for example as a mixture with the colorant composition (I); or can be added to a separate chamber, separate from the dyeing composition (A).

[0236] Therefore, the present invention may advantageously provide a dyeing kit comprising:

[0237] The dyeing composition (A) according to the invention placed in chamber 1; and

[0238] The pyrazolone composition (B) according to the present invention comprising a retardant combination of a pyrazolone compound and a reducing agent is placed in a chamber 2 separate from chamber 1 .

[0239] Methods and uses

[0240] A subject of the present invention is a process for dyeing human keratin fibers, in particular the hair, using a dye set as described above.

[0241] Another subject of the present invention is a method for reducing staining by dye compositions using a dye set as described above.

[0242] Another subject of the invention is a method for slowing down the reaction of a dye or an intermediate using a dye kit as described above.

[0243] The invention also relates to the use of a dye set as described above for dyeing keratin fibers, in particular the hair.

[0244] The invention also relates to the use of a dye set as described above for reducing staining of a dye set.

[0245] The invention also relates to the use of a dye set as described above for slowing down the reaction of a dye or an intermediate (using a dye set as described above).

[0246] In particular, the present invention relates to a method for slowing down the reaction of a dye or an intermediate thereof, characterized in that a pyrazolone compound including phenylmethylpyrazolone is mixed with the dye.

[0247] Preferably, the pyrazolone compound is mixed with the dye prior to application of the dye, or the pyrazolone compound is applied to the location less than 10 minutes, less than 5 minutes, or less than 3 minutes after the dye has been applied.

[0248] The present invention also relates to the use of pyrazolone compounds including phenylmethylpyrazolone for reducing dye staining.

[0249] In another aspect, the present invention relates to the use of a composition for dyeing keratin fibers while reducing staining in areas of non-keratin fibers, wherein the composition comprises a pyrazolone compound including phenylmethylpyrazolone.

[0250] According to a preferred embodiment, the dyeing process of the invention comprises mixing the colorant composition (I) with the composition (II) just before use and applying the mixture obtained as described above to the keratin fibres.

[0251] More particularly, "mixing" or variations thereof is intended to mean the act of placing the colorant composition (I) of the present invention together with the developer composition (II) as described above in a container or in the palm of one's hand, with or without stirring.

[0252] According to a preferred variant of the preferred embodiment, the colorant composition (I) according to the invention is placed together with the developer composition (II) as described above in a container or in the palm of the hand without stirring them.

[0253] Whatever the method used and whatever the amount of composition used, the abovementioned composition or compositions, optionally premixed, are applied to the wet or dry keratin fibres.

[0254] As described above in the section "Form of adding the pyrazolone composition (B)", the pyrazolone composition (B) can be provided in various forms for use with the colorant composition (I) and the developer composition (II), thereby slowing down the reaction of the dye. In particular, if the pyrazolone composition (B) is placed in a chamber 2 separate from chamber 1, for the dye set according to the present invention:

[0255] - If the user does not want to slow down the dyeing, or is not concerned about staining caused by the dye, chamber 2 can be left unused;

[0256] - If the user wishes to avoid any contamination, he / she can mix chambers 2 and 1 before dyeing;

[0257] - if the user wants to determine whether to use chamber 2 depending on whether staining actually occurs, he / she can first use only chamber 1, and when the staining composition adheres to the hands or anywhere else, chamber 2 can be applied immediately; and

[0258] - If the user wants to avoid staining and desires fast dyeing, he / she can pre-apply chamber 2 to locations where staining is most likely to occur but should be avoided, such as the hands.

[0259] Alternatively, if the pyrazolone composition (B) is provided together with the colorant composition (I), for example added directly to composition (I), the dyeing process is often slowed down compared to the same dyeing process except that the pyrazolone compound (B) is not present.

[0260] The mixed composition, including the colorant composition (I) and the developer composition (II), and optionally the pyrazolone composition (B), is generally left in place on the fiber for a period of time of generally 1 minute to 1 hour and preferably 5 minutes to 30 minutes.

[0261] The temperature during the process is generally between 20 and 80° C. and preferably between 20 and 60° C. After the treatment, the human keratin fibers are advantageously rinsed with water. They can optionally be further washed with shampoo, then rinsed with water and then dried or air-dried.

[0262] This process can be repeated several times to obtain the desired coloration.

[0263] The above dye sets may also be provided with a device allowing the desired mixture to be delivered to the hair, such as the device described in patent FR 2 586 913, for example.

[0264] The following examples are given by way of illustration only of the present invention.

[0265] Example:

[0266] The amounts / concentrations of ingredients in the compositions / formulations described below are expressed as % by weight relative to the total weight of the respective composition / formulation.

[0267] Example 1

[0268] Colorant composition IA and comparative composition IB were prepared from the ingredients shown in Table 1 below (wherein the contents are expressed as % by weight of the material relative to the total weight of the composition):

[0269] Table 1

[0270] Element I A IB Resorcinol 0.8 0.8 2-Methylresorcinol 0.3 0.3 Sodium Laureth Sulfate 2 2 p-Aminophenol (and) sodium metabisulfite 0.5 0.5 Thioglycolic acid 2 0.5 Carbomer 0.7 0.7 Ethanolamine 3.3 3.3 glycerin 5 5 Phenylmethylpyrazolone 0.5 0.5 EDTA 0.2 0.2 Toluene-2,5-diamine (and) thioglycerol 2 2 2,4-Diaminophenoxyethanol HCl 0.15 0.15 Sweet almond oil 0.01 0.01 water QS QS

[0271] The following developer composition II-A was prepared from the ingredients shown in Table 2 below (wherein the contents are expressed as % by weight of the material relative to the total weight of the composition):

[0272] Table 2

[0273] Element II-A Hydrogen Peroxide 12 Etidronate Tetrasodium 0.2 Tetrasodium pyrophosphate 0.04 Sodium salicylate 0.04 glycerin 0.5 Trideceth-2 carboxamide MEA 1 Cetearyl Alcohol (and) Ceteareth-25 3 water QS to 100

[0274] Example 2

[0275] For application, compositions IA and IB were mixed with composition II-A in a weight ratio of 1:1 to provide mixtures AA and BA, respectively. 20 grams of each mixture was poured into the palm of the hairdresser, who immediately applied the product (mixture AA or BA) to medium-length hair, i.e., hair length of about 18 cm and hair weight of 2 grams. The hair was massaged for about 1 minute and then placed on a hot plate at a constant temperature of 27° C. After 30 minutes, the hair was rinsed with water. The rinse water was checked and the hair color result was observed after blow-drying. It is clearly seen that composition IA resulted in a much slower color change during the dyeing process, while providing a pleasing final dyeing, compared to the blank control to which the blocking combination was not added. That is, a non-smudge effect was observed for composition IA during the dyeing process.

[0276] For the stability check of PMP, the colorant samples of IA and IB were placed in an oven at 45°C for 1 month. HPLC was used to analyze the PMP concentration at T0 and after 1 month at 45°C. The results are shown in Table 3, indicating that IA did not lose a detectable amount (detected as 0.0%) of PMP, which is significantly better than the 47.8% loss of IB.

[0277] Table 3

[0278] .

Claims

1. Dye set, including: A) A dyeing composition (A) comprising: I) A colorant composition (I) comprising: i) at least one oxidation dye; and II) A developer composition (II) comprising: ii) at least one oxidizing agent; and B) a pyrazolone composition (B) comprising a retarding combination of a pyrazolone compound and a reducing agent, wherein the pyrazolone compound comprises phenylmethylpyrazolone, wherein the pyrazolone compound is present in an amount of 0.01 wt % to 10 wt % relative to the total weight of composition (I); wherein the reducing agent is thioglycolic acid or a salt thereof; and wherein for the pyrazolone composition (B), the reducing agent is used in a weight ratio of 1.1:1 to 10:1 to the pyrazolone compound; The pyrazolone composition (B) is placed in a separate chamber from the dyeing composition (A), or in the colorant composition (I). wherein the oxidation dye comprises a dye combination of one or more oxidation chromophores and one or more coupling agents; The oxidized chromophore comprises: unsubstituted p-phenylenediamine or p-phenylenediamine substituted by 1 or 2 C1-C4 alkyl groups, unsubstituted p-aminophenol or p-aminophenol substituted by 1 or 2 C1-C4 alkyl groups, and 4,5-diaminopyrazole; and The coupling agent comprises: unsubstituted m-aminophenol or m-aminophenol substituted by 1 or 2 C1-C4 alkyl groups, unsubstituted resorcinol or resorcinol substituted by 1 or 2 C1-C4 alkyl groups, diaminophenols, or unsubstituted hydroxyindole, amino-substituted hydroxypyridine, or hydroxybenzomorpholine; wherein the oxidation dye comprises one or more oxidation chromophores in an amount of 0.0001 wt % to 10 wt % relative to the total weight of the composition (I); and / or the oxidation dye further comprises one or more coupling agents in an amount of 0.0001 wt % to 10 wt % relative to the total weight of the composition (I); wherein the colorant composition (I) comprises an antioxidant selected from flavonoids, vitamin C, vitamin E, tocopherol, tocotrienols, carotenoids, anthocyanins, phenylpropanoids, curcuminoids, tannins, stilbene compounds, or mixtures thereof; The concentration of the oxidizing agent is 0.1 wt % to 50 wt % based on the weight of the composition (II).

2. The dye set of claim 1, wherein the flavonoids include dihydrochalcone and chalcone.

3. The dye set of claim 1, wherein the phenylpropanoid comprises coumarin. 4 . The dye set according to claim 1 , wherein the developer composition (II) is placed separately from the colorant composition (I).

5. The dye set according to claim 1, wherein the antioxidant is used in an amount of 0.001 to 10 wt% relative to the total weight of the colorant composition (I).

6. The dye set according to claim 1, wherein the antioxidant is used in an amount of 0.5 to 4 wt% relative to the total weight of the colorant composition (I).

7. The dye set according to claim 1, wherein the oxidation dye comprises one or more oxidation chromophores in an amount of 0.1 wt % to 5 wt % relative to the total weight of composition (I); and / or the oxidation dye further comprises one or more coupling agents in an amount of 0.005 wt % to 5 wt % relative to the total weight of composition (I).

8. The dye set according to claim 1, wherein the oxidizing agent is selected from the group consisting of hydrogen peroxide, urea peroxide, alkali metal bromates, peroxide salts; and polymeric complexes capable of releasing hydrogen peroxide. 9 . The kit according to claim 1 , wherein the concentration of the oxidizing agent is 1 wt % to 15 wt % based on the weight of composition (II). 10 . The kit according to claim 1 , wherein the pyrazolone compound is present in an amount of 0.5% to 2% by weight relative to the total weight of composition (I). 11 . The kit according to claim 1 , wherein for the pyrazolone composition (B), the reducing agent and the pyrazolone compound are used in a weight ratio of 2:1 to 5:

1.

12. The kit according to claim 1, wherein the composition (I) has a pH of 6-11.

13. The kit according to claim 1, wherein the composition (I) has a pH of 8-9.

14. A method of dyeing keratinous fibers while reducing staining in non-keratinous fiber areas or slowing down the reaction of a dye or an intermediate thereof using a dye set according to any one of claims 1 to 13. 15 . The method according to claim 14 , wherein the pyrazolone-based composition (B) is mixed with the oxidation dye before applying the oxidation dye, or the pyrazolone-based composition (B) is applied to a location where the oxidation dye has been applied for less than 10 minutes. 16 . The method according to claim 14 , wherein the pyrazolone-based composition (B) is mixed with the oxidation dye before applying the oxidation dye, or the pyrazolone-based composition (B) is applied to a location where the oxidation dye has been applied for less than 3 minutes.

17. Use of a dye set according to any one of claims 1 to 13 for dyeing keratin fibres while reducing staining in areas of non-keratin fibres.