dye kit

Abstract

Dyeing Kit. The present invention relates to a dyeing kit comprising: a) a dye composition, comprising a1) at least one oxidative dye; b) a developer composition, comprising b1) at least one oxidant; and c) a retarder composition, comprising c1) at least one pyrazolone compound, and c2) at least one solvent capable of dissolving or dispensing the pyrazolone compound; wherein the retarder composition is placed in a container separate from the dye composition and the developer composition. Figure for abstract: none

Description

Title of the invention: dyeing kit technical field

[0001] The present invention relates to a dyeing kit. Preferably, the present invention relates to a dyeing kit for dyeing keratin fibers, preferably hair. The present invention also relates to a method for dyeing keratin fibers, preferably hair. CONTEXT OF THE INVENTION

[0002] Many people have long sought to change the color of their hair, and in particular to dye it in order, for example, to cover up their grey hair.

[0003] “Permanent” dyeing processes, also known as oxidative dyeing, which use dye compositions containing oxidative dye precursors, generally called oxidation bases, have been developed for the durable dyeing of human keratin fibers. These oxidation bases are colorless or weakly colored compounds that, when combined with oxidants, can give rise to colored compounds via an oxidative condensation process.

[0004] Some consumers wish to dye only the target area. However, when dyeing hair, other areas may be undesirably dyed (stained), such as the hands, face, ears, and the like. Therefore, consumers should be more careful to prevent staining.

[0005] To prevent unwanted staining, the specialist may add one or more retarders, for example pyrazolone compounds, to dye compositions comprising oxidative dyes to slow down the reactions of the dye or its intermediates. However, challenges remain in stably containing the retarders in dye products to effectively prevent staining, particularly after storage at high temperatures and / or for extended periods.

[0006] Therefore, there is a need for a dye product comprising one or more retarders, in which the retarders can be stably contained, so that the formation of stains will be effectively prevented, even after being stored at a high temperature for a long period. Summary of the invention

[0007] The inventors have discovered that such a need can be met by the dyeing kit according to the present invention.

[0008] According to a first aspect, the present invention proposes a dyeing kit comprising: a. a dye composition, comprising

[0009] al) at least one oxidative dye; a. a developer composition, comprising

[0010] b 1) at least one oxidant; and a. a retardant composition, comprising

[0011] cl) at least one pyrazolone compound, and

[0012] c2) at least one solvent capable of dissolving or dispensing the compound pyrazolone;

[0013] wherein the retarder composition is placed in a container separate from the dye composition and the developer composition.

[0014] When storing the pyrazolone compound in a separate container from the dye composition and the developer composition, in a mixture with a solvent capable of dissolving or dispensing it, the stability of the retarder can be considerably improved, even after prolonged storage at high temperatures.

[0015] According to a second aspect, the present invention proposes a method for dyeing keratin fibers, preferably hair, comprising: a. the mixture of the colorant composition, the developer composition, and the retarder composition according to the first aspect; and b. the application of the mixture obtained in step a) onto the keratin fibers.

[0016] Other subjects and features, aspects and advantages of the present invention will become even clearer upon reading the detailed description and examples that follow. Brief description of the drawings

[0017] [Fig-1] [Fig.1] is an image of the standard atlas scale for estimating aspects rinsing water obtained from the embodiments of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0018] In what follows and unless otherwise indicated, the limits of a range of values ​​are included in that range, in particular in the expressions "between...and..." and "from...to...".

[0019] Moreover, the expression "at least one" used in this description is equivalent to the expression "one or more".

[0020] Throughout this application, the term "including" shall be interpreted as encompassing all the features specifically mentioned as well as optional, additional, unspecified features. As used herein, the employment The term "comprising" also discloses an embodiment in which no material features, or even any features other than those specifically mentioned, are present (such as "essentially consisting of" or "consisting of"). In the case of "essentially consisting of," any additional composition, material, and / or component that materially affects the fundamental and new features is excluded from such an embodiment, but any composition, material, and / or component that does not materially affect the fundamental and new features may be included in the embodiment.

[0021] Unless otherwise stated, all numerical values ​​expressing a quantity of ingredients and the like used in the description and claims are to be understood as modified by the term "approximately". Accordingly, unless otherwise stated, the numerical values ​​and parameters described herein are approximate values ​​that may be modified according to the desired performance as required. The term "approximately" referring to a certain value is intended to denote a range to within ±5% of the value, for example: within ±3%, ±2%, ±1%, and ±0.5% of the value.

[0022] As used herein, the term "keratinous fiber(s)" refers to hair, eyelashes, eyebrows, or body hair. Preferably, keratinous fiber(s) refers to hair, and preferably human hair.

[0023] As used here, the term “retarder” refers to an agent capable of slowing down the reactions of the dye or its intermediates, such as reactions with the developer, for example an oxidative condensation between them. Dye composition

[0024] The dyeing kit according to the present invention comprises a dye composition. Oxidative Dye

[0025] The dye composition according to the present invention comprises at least one oxidative dye.

[0026] Preferably, the oxidative dye that can be used in the present invention comprises at least one oxidation base, and optionally at least one coupler.

[0027] Preferably, the oxidation base is chosen from para-phenylenediamines, bis(phenyl)alkylenediamines, para-aminophenols, ortho-aminophenols, heterocyclic bases, and their addition salts, and mixtures thereof.

[0028] The para-phenylenediamines may be selected from para-phenylenediamine, para-toluenediamine (toluene-2,5-diamine), 2-chloro-para-phenylenediamine, 2-methyl-para-phenylenediamine, 2,3-dimethyl-para-phenylenediamine, 2,6-dimethyl-para-phenylenediamine, 2,6-diethyl-para-phenylenediamine, the 2,5-Dimethyl-para-phenylenediamine, N,N-dimethyl-para-phenylenediamine, N,N-diethyl-para-phenylenediamine, N,N-dipropyl-para-phenylenediamine, 4-amino-N,N-diethyl-3-methylaniline, N,N-bis([3-hydroxyethyl)-para-phenylenediamine, 4-N,N-bis([3-hydroxyethyl)amino-2-methylaniline, 4-N,N-bis(P-hydroxyethyl)amino-2-chloroaniline, 2-[3-hydroxyethyl-para-phenylenediamine, 2-fluoro-para-phenylenediamine, 2-isopropyl-para-phenylenediamine, N-([3-hydroxypropyl)-para-phenylenediamine, 2-hydroxymethyl-para-phenylenediamine, N,N-dimethyl-3-methyl-para-phenylenediamine, N,N-(ethyl-[3-hydroxyethyl)-para-phenylenediamine, N-([3,Y-dihydroxypropyl)-para-phenylenediamine, N-(4'-aminophenyl)-para-phenylenediamine, N-phenyl-para-phenylenediamine, 2-[3-hydroxyethyloxy-para-phenylenediamine, 2-[3-acetylaminoethyloxy-para-phenylenediamine, N-([3-methoxyethyl)-para-phenylenediamine, 2-thienyl-para-phenylenediamine,2-[3-hydroxyethylamino-5-aminotoluene, and mixtures thereof.]

[0029] Bis(phenyl)alkylenediamine can be selected from N,N'-bis([3-hydroxyethyl)-N,N'-bis(4'-aminophenyl)-1,3-diaminopropanol, N,N'-bis-([3-hydroxyethyl)-N,N'-bis(4'-aminophenyl)ethylenediamine, N,N'-bis(4-aminophenyl)tetramethylenediamine, N,N'-bis([3-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, and mixtures thereof.

[0030] The para-aminophenol can be selected from para-aminophenol, 4-amino-3-methylphenol, 4-amino-3-fluorophenol, 4-amino-3-chlorophenol, 4-amino-3-hydroxymethylphenol, 4-amino-2-methylphenol, 4-amino-2-hydroxymethylphenol, 4-amino-2-methoxymethylphenol, 4-amino-2-aminomethylphenol, 4-amino-2-([3-hydroxyethylaminomethyl)phenol, 4-amino-2-fluorophenol, and mixtures thereof.

[0031] The ortho-aminophenol can be selected from 2-aminophenol, 2-amino-5-methylphenol, 2-amino-6-methylphenol, 5-acetamido-2-aminophenol, and mixtures thereof.

[0032] The heterocyclic base is preferably chosen from pyridine derivatives, pyrimidine derivatives, pyrazole derivatives, and mixtures thereof.

[0033] Among the pyridine derivatives that can be cited are the compounds described, for example, in patents GB 1026978 and GB 1153196, for example 2,5-diaminopyridine, 2-(4-methoxyphenyl)amino-3-aminopyridine, 3,4-diaminopyridine, and mixtures thereof.

[0034] Other pyridine derivatives that are useful in the present invention include, but are not limited to, 3-aminopyrazolo[l,5-a]pyridine, pyrazolo[l,5- a]pyridin-3-ylamine, 2-(acetylamino)pyrazolo[l,5-a]pyridin-3-ylamine, 2-(morpholin-4-yl)pyrazolo[l,5-a]pyridin-3-ylamine, 3-aminopyrazolo[l,5-a]pyridine-2-carboxylic acid, 2-methoxypyrazolo[l,5-a]pyridin-3-ylamine, (3-aminopyrazolo[l,5-a]pyridin-7-yl)methanol, 2-(3-aminopyrazolo[l,5-a]pyridin-5-yl)ethanol, 2-(3-aminopyrazolo[l,5-a]pyridin-7-yl)ethanol, (3-aminopyrazolo[l,5-a]pyridin-2-yl)methanol, the 3,6-diaminopyrazolo[l,5-a]pyridine, 3,4-diaminopyrazolo[l,5-a]pyridine, pyrazolo[l,5-a]pyridine-3,7-diamine, 7-(morpholin-4-yl)pyrazolo[l,5-a]pyridin-3-ylamine, pyrazolo[l,5-a]pyridine-3,5-diamine, 5-(morpholin-4-yl)pyrazolo[l,5-a]pyridin-3-ylamine, 2-[(3-aminopyrazolo[l,5-a]pyridin-5-yl)(2-hydroxyethyl)amino]ethanol, 2-[(3-aminopyrazolo[l,5-a]pyridin-7-yl)(2-hydroxyethyl)amino]ethanol, 3-aminopyrazolo[l,5-a]pyridin-5-ol, 3-aminopyrazolo[l,5-a]pyridin-4-ol, 3-aminopyrazolo[l,5-a]pyridin-6-ol, 3-aminopyrazolo[l,5-a]pyridin-7-ol,and their mixtures.

[0035] Among the pyrimidine derivatives that may be cited are the compounds described, for example, in patents DE 2359399; EP 0770375, or 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 their tautomeric forms, where a tautomeric equilibrium exists.

[0036] Among the pyrazole derivatives that may be cited are the compounds described in patents DE 3843892 and DE 4133957 and patent applications WO 94 / 08969, WO 94 / 08970, FR-A-2 733 749 and DE 195 43 988, for example 4,5-diaminopyrazole, 4,5-diamino-l-methylpyrazole, 4,5-diamino-1-(|3-hydroxyethyl)pyrazole, 3,4-diaminopyrazole, 4,5-diamino-l-(4'-chlorobenzyl)pyrazole, 4,5-diamino-l,3-dimethylpyrazole, 4,5-diamino-3-methyl-l-phenylpyrazole, the 4,5-diamino-l-methyl-3-phenylpyrazole, 4-amino-l,3-dimethyl-5-hydrazinopyrazole, l-benzyl-4,5-diamino-3-methylpyrazole, 4,5-diamino-3-tert-butyl-1-methylpyrazole, 4,5-diamino-l-tert-butyl-3-methylpyrazole, 4,5-diamino-l-([3-hydroxyethyl)-3-methylpyrazole, 4,5-diamino-l-ethyl-3-methylpyrazole, 4,5-diamino-l-ethyl-3-(4'-methoxyphenyl)pyrazole, 4,5-diamino-l-ethyl-3-hydroxymethylpyrazole, 4,5-diamino-3-hydroxymethyl-1-methylpyrazole, 4,5-diamino-3-hydroxymethyl-l-isopropylpyrazole,4,5-Diamino-3-methyl-l-isopropylpyrazole, 4-amino-5-(2'-aminoethyl)amino-l,3-dimethylpyrazole, 3,4,5-triaminopyrazole, l-methyl-3,4,5-triaminopyrazole, 3,5-diamino-l-methyl-4-methylaminopyrazole, 4,5-diamino-l-([3-methoxyethyl)pyrazole and 3,5-diamino-4-([3-hydroxyethyl)amino-l-methylpyrazole, and mixtures thereof.

[0037] Preferably, the coupler is chosen from among meta-phenylenediamines, meta-aminophenols, diaminophenols and their ether derivatives, meta-diphenols, naphthalene-based couplers, heterocyclic couplers, and their addition salts, and mixtures thereof.

[0038] More preferably, the coupler is chosen from unsubstituted meta-aminophenol, meta-aminophenols substituted with one or two Cr-C4 alkyl groups and / or one or two halogens, unsubstituted meta-diphenol, meta-diphenols substituted with one or two Ci-C4 alkyl groups and / or one or two halogens, diaminophenol ethers, diaminobenzenes, naphthols, hydroxyindoles, amino-substituted hydroxypyridines, hydroxybenzomorpholines, and mixtures thereof. As used herein, the term "meta-diphenol" means 1,3-dihydroxybenzene. As used here, the expression "diaminophenol ether" or "diaminophenol ether derivative" refers to an ether obtained from the reaction of the benzene-bonded hydroxyl group of diaminophenol with one or more other compounds having at least one hydroxyl group or itself.

[0039] Even more preferably, the coupler is chosen from among l-hydroxy-3-aminobenzene, l-methyl-2-hydroxy-4-aminobenzene, 1,3-dihydroxybenzene, l,3-dihydroxy-2-methylbenzene, 4-chloro-1,3-dihydroxybenzene, 2,4-diamino-l-([3-hydroxyethyloxy)benzene, 2-amino-4-([3-hydroxyethylamino)-l-methoxybenzene, l,3-bis(2,4-diaminophenoxy)propane, 1,3-diaminobenzene, 3-ureidoaniline, 3-ureido-l-dimethylaminobenzene, α-naphtol, 2-methyl-l-naphtol, 6-hydroxyindole, 4-hydroxyindole, 4-hydroxy-N-methylindole, 2-amino-3-hydroxypyridine, the 6-hydroxybenzomorpholine, and their mixtures.

[0040] The addition salts of the oxidation bases and couplers that can be used in the context of the invention can be chosen from the addition salts with an acid, such as hydrochlorides, hydrobromides, sulfates, citrates, succinates, tartrates, lactates, tosylates, benzenesulfonates, phosphates and acetates.

[0041] Preferably, the oxidative dye, according to the present invention, comprises at least one oxidation base and at least one coupler.

[0042] More preferably, the oxidative dye according to the present invention comprises at least one para-phenylenediamine, at least one meta-aminophenol and at least one hydroxybenzomorpholine.

[0043] Even more preferably, the oxidative dye according to the present invention comprises toluene-2,5-diamine, l-hydroxy-3-aminobenzene and 6-hydroxybenzomorpholine.

[0044] Advantageously, the oxidative dye is present in an amount ranging from 0.05% by weight to 15% by weight, preferably from 0.1% by weight to 10% by weight, and more preferably from 1% by weight to 8% by weight, relative to the total weight of the colorant composition.

[0045] If present, the oxidation base is present in an amount ranging from 0.05% by weight to 10% by weight, preferably from 0.1% by weight to 8% by weight, and more preferably from 0.5% by weight to 5% by weight, relative to the total weight of the dye composition.

[0046] If present, the coupler is present in an amount ranging from 0.05% by weight to 8% by weight, preferably from 0.1% by weight to 5% by weight, and more preferably from 0.5% by weight to 3% by weight, relative to the total weight of the colorant composition. Surfactant

[0047] The colorant composition of the present invention may include at least one surfactant, preferably chosen from amphoteric surfactants, non-ionic surfactants, and mixtures thereof.

[0048] Preferably, the surfactant comprises at least one amphoteric surfactant and at least one non-ionic surfactant. Amphoteric surfactant

[0049] According to the present invention, the amphoteric surfactant can be selected from betaines, sultaines (also called sulfobetaines), alkyl amphoathetas and alkyl amphodiacetates, alkyl amphopropionates, and mixtures thereof.

[0050] Preferably, the amphoteric surfactant is chosen from among betaines, sultaines (also called sulfobetaines), and mixtures thereof.

[0051] Examples of amphoteric surfactants include, but are not limited to, (C8-C2oalkyl)betaines, (C8-C20alkyl)sulfobetaines, (C8-C20alkyl)amido(C2-C8alkyl)betaines and (C8-C20alkyl)amido(C2-C8alkyl)sulfobetaines.

[0052] More preferably, the amphoteric surfactant is chosen from among the betaines, and is preferably chosen from among the (C8-C20alkyl)betaines, the (C8-C20alkyl)amido(C2-C8alkyl)betaines, and their mixtures.

[0053] More preferably, the amphoteric surfactant is chosen from cocobetaine, cocamidopropylbetaine, and one of their mixtures.

[0054] Advantageously, the amphoteric surfactant is present in an amount ranging from 0.01% by weight to 20% by weight, preferably from 0.1% by weight to 10% by weight, and more preferably from 1% by weight to 5% by weight, relative to the total weight of the colorant composition. Non-ionic surfactant

[0055] According to the present invention, the non-ionic surfactant can be chosen from polyoxyalkylated and / or polyglycerolated non-ionic surfactants, and preferably polyoxyethylated and / or polyglycerolated non-ionic surfactants.

[0056] Preferably, the non-ionic surfactant is selected from polyoxyalkylated hydrogenated castor oils; polyoxyalkylated fatty acid esters of glycerol or optionally polyoxyalkylated fatty acid esters of polyglycerol; polyoxyalkylated fatty alcohol ethers; and mixtures thereof.

[0057] According to the present invention, the polyoxyalkylated hydrogenated castor oil can be selected from PEG-25 hydrogenated castor oil, PEG-30 hydrogenated castor oil, PEG-35 hydrogenated castor oil, PEG-40 hydrogenated castor oil, PEG-45 hydrogenated castor oil, PEG-50 hydrogenated castor oil, PEG-54 hydrogenated castor oil, PEG-55 hydrogenated castor oil, PEG-60 hydrogenated castor oil, PEG-65 hydrogenated castor oil, PEG-80 hydrogenated castor oil, PEG-100 hydrogenated castor oil, PEG-200 hydrogenated castor oil and mixtures thereof.

[0058] According to the present invention, the polyoxyalkylated fatty acid ester of glycerol can be those including polyethylene glycol derivatives of a mixture of mono-, di- and triglycerides of caprylic and capric acids (preferably 2 to 30 ethylene oxide motifs).

[0059] In addition, the polyoxyalkylated fatty acid ester of glycerol can be selected from polyoxyethylened derivatives of fatty acid glyceryl esters and their hydrogenated derivatives.

[0060] According to the present invention, the polyglycerol fatty acid ester can be selected from polyglyceryl monolaurate comprising 1 to 20 glycerol motifs, polyglyceryl monomyristate comprising 1 to 20 glycerol motifs, polyglyceryl monocaprate comprising 1 to 20 glycerol motifs, polyglyceryl monocaprylate comprising 1 to 20 glycerol motifs, and mixtures thereof.

[0061] According to the present invention, the polyoxyalkylated fatty alcohol ether can be selected from those having a number of ethylene oxide and / or propylene (EO / PO) motifs ranging from 2 to 40.

[0062] Preferably, the nonionic surfactant is selected from polyoxyalkylated hydrogenated castor oils. More preferably, the nonionic surfactant is selected from PEG-25 hydrogenated castor oil, PEG-30 hydrogenated castor oil, PEG-35 hydrogenated castor oil, PEG-40 hydrogenated castor oil, PEG-45 hydrogenated castor oil, PEG-50 hydrogenated castor oil, PEG-54 hydrogenated castor oil, PEG-55 hydrogenated castor oil, PEG-60 hydrogenated castor oil, and mixtures thereof. Even more preferably, the nonionic surfactant is PEG-40 hydrogenated castor oil.

[0063] Advantageously, the non-ionic surfactant is present in an amount ranging from 0.01% by weight to 20% by weight, preferably from 0.1% by weight to 10% by weight, and more preferably from 1% by weight to 5% by weight, relative to the total weight of the colorant composition. Antioxidant

[0064] The colorant composition of the present invention may include at least one antioxidant.

[0065] Examples of the antioxidant that may be cited include, but are not limited to, ascorbic acid, its salts and derivatives (such as sodium ascorbate, erythorbic acid, ascorbyl palmitate and ascorbyl laurate); salicylic acid, its salts and derivatives (such as sodium salicylate); mercaptans and inorganic sulfites (such as sodium sulfite, sodium bisulfite, sodium metabisulfite and potassium sulfite). Preferably, the antioxidant is selected from ascorbic acid, erythorbic acid, sodium sulfite, sodium bisulfite, sodium metabisulfite, sodium salicylate, and mixtures thereof.

[0066] Preferably, the antioxidant is chosen from erythorbic acid, sodium sulfite, and one of their mixtures.

[0067] Advantageously, the antioxidant is present in an amount ranging from 0.01% by weight to 10% by weight, preferably from 0.1% by weight to 8% by weight, and more preferably from 1% by weight to 5% by weight, relative to the total weight of the colorant composition. First pH corrector

[0068] The colorant composition according to the present invention may include at least a first pH corrector.

[0069] Preferably, the first pH corrector is chosen from among the bases.

[0070] According to the present invention, the alkali agent can be chosen from aqueous ammonia; alkali metal carbonates or bicarbonates; organic amines with a pKb at 25 °C less than 12, preferably less than 10 and more preferably less than 6; and mixtures thereof, in which the pKb corresponds to the function of the highest basicity.

[0071] Preferably, the colorant composition according to the present invention can be free or substantially free of aqueous ammonia.

[0072] Preferably, the organic amines are chosen from alkanolamines, comprising in particular a primary, secondary or tertiary amine function, and one or more linear or branched C1-C8 alkyl groups bearing one or more hydroxyl radicals; polyoxyethylenated and / or polyoxypropylenated ethylenediamines; compounds corresponding to the following formula: Rxx / Rz XN WN Ry xRt

[0073] wherein W is a Ci-C6 alkylene residue optionally substituted by a Ci-C6 hydroxyl or alkyl group; Rx, Ry, Rz and Rt, which may be identical or different, represent a hydrogen atom or an alkyl group in Cr C6, hydroxyalkyl in Ci-C6 or aminoalkyl in Ci-C6; and their mixtures.

[0074] More preferably, the first pH corrector is chosen from among the alkanolamines, preferably comprising a primary, secondary or tertiary amine function, and one or more linear or branched CrC8 alkyl groups bearing one or more hydroxyl radicals.

[0075] Even more preferably, the first pH corrector is ethanolamine.

[0076] Advantageously, the first pH corrector is present in an amount ranging from 0.01% by weight to 10% by weight, preferably from 0.05% by weight to 5% by weight, and more preferably from 0.1% by weight to 3% by weight, relative to the total weight of the dye composition.

[0077] Advantageously, the first pH corrector is added to correct the pH value of the dye composition in the range of 6.5 to 9.5. Aqueous solvent

[0078] The dye composition of the present invention may include at least one aqueous solvent.

[0079] Preferably, the aqueous solvent of the dye composition according to the present invention is chosen from water; water-miscible or at least partially water-miscible compounds, for example C2-C8 polyols, or monoalcohols, such as ethanol and isopropanol; and mixtures thereof.

[0080] The term "polyol" should be understood as designating any organic molecule comprising at least two free hydroxyl groups. Examples of C2-C8 polyols that may be cited include, but are not limited to, butylene glycol, propylene glycol, dipropylene glycol, isoprene glycol, hexylene glycol, caprylyl glycol, glycerol (i.e., glycerin) and ethylene glycol.

[0081] Preferably, the colorant composition according to the present invention comprises both water and at least one C2-C8 polyol, preferably glycerol (i.e. glycerin).

[0082] Advantageously, the C2-C8 polyol is present in an amount ranging from 0.01% by weight to 20% by weight, preferably from 0.1% by weight to 15% by weight, and more preferably from 1% by weight to 10% by weight, relative to the total weight of the colorant composition.

[0083] Advantageously, the water is present in an amount ranging from 30% by weight to 95% by weight, preferably from 40% by weight to 90% by weight, and more preferably from 45% by weight to 85% by weight, relative to the total weight of the colorant composition. developer composition

[0084] The dyeing kit according to the present invention comprises a developer composition. Oxidizing agents

[0085] The developer composition according to the present invention comprises at least one oxidant.

[0086] The developer composition of the present invention comprises at least one general-purpose oxidant as one of the active components of the developer composition. The term "oxidant" is intended to refer to an oxidant other than atmospheric oxygen.

[0087] According to the present invention, the oxidant is preferably water-soluble. The expression "water-soluble" is intended to characterize the ability of a compound to dissolve in water, measured at 25 °C, at a concentration of at least 0.1 g / L (producing a macroscopically isotropic, transparent, colored, or colorless solution). This solubility is, in particular, greater than or equal to 1 g / L. The oxidant can be supplied as an aqueous solution or in powder form, which is dissolved before use.

[0088] The oxidant can be hydrogen peroxide or other peroxidizing materials capable of producing hydrogen peroxide.

[0089] Preferably, the oxidant is chosen from hydrogen peroxide, alkali metal bromates, inorganic alkali metal peroxides, organic peroxides, inorganic perhydrate salts, polymer complexes capable of releasing hydrogen peroxide, and mixtures thereof.

[0090] Examples of alkali metal bromate include, but are not limited to, sodium bromate (NaBrO3) and potassium bromate (KBrO3).

[0091] Examples of inorganic alkali metal peroxide include, but are not limited to, sodium peroxide and potassium peroxide.

[0092] The organic peroxide can be alkyl and / or aryl peroxides. Examples of other organic peroxides include, but are not limited to, urea peroxide and melamine peroxide.

[0093] Inorganic perhydrate salts can be used as monohydrates, tetrahydrates, and the like. Examples of inorganic perhydrate salts include, but are not limited to, perborates, percarbonates, perphosphates, persilicates, and persulfates. Preferably, inorganic perhydrate salts are alkali metal salts, such as potassium persulfate, sodium persulfate, and mixtures thereof.

[0094] An example of the polymer complex capable of releasing hydrogen peroxide is polyvinylpyrrolidone / H2O2, for example, in powder form.

[0095] More preferably, the oxidant is chosen from hydrogen peroxide, urea peroxide, alkali metal bromates, persulfates, perborates, and mixtures thereof.

[0096] Even more preferably, the oxidant is hydrogen peroxide.

[0097] Advantageously, the oxidant is present in an amount ranging from 0.1% by weight to 20% by weight, preferably from 0.5% by weight to 15% by weight, and more preferably from 1% by weight to 10% by weight, relative to the total weight of the developer composition. Second pH corrector

[0098] The developer composition of the present invention may include at least a second pH corrector.

[0099] Preferably, the second pH corrector is chosen from among the acids.

[0100] Preferably, the acid is chosen from mineral acids, carboxylic acids, Sulfonic acids, phosphonic acids, and their mixtures. Examples of acids that can be mentioned include, but are not limited to, hydrochloric acid, nitric acid, sulfuric acid, phosphoric acid, acetic acid, tartaric acid, citric acid, and lactic acid.

[0101] More preferably, the second pH corrector is phosphoric acid.

[0102] Advantageously, the second pH corrector is added to correct the pH value of the developer composition in the range of 1.5 to 3, preferably from 1.8 to 2.7, and more preferably from 2.0 to 2.4. Chelating agent

[0103] The dye composition of the present invention may include at least one chelating agent.

[0104] Preferably, the chelating agent is selected from ethylenediaminetetraacetic acid (EDTA), tripotassium phosphate, trisodium phosphate, disodium silicate, dipotassium silicate, sodium phytate, tetrasodium etidronate, tetrasodium pyrophosphate, pentasodium ethylenediamine tetramethylene phosphonate, tetrasodium glutamate diacetate, and mixtures thereof.

[0105] More preferably, the chelating agent is chosen from tetrasodium glutamate diacetate, tetrasodium etidronate, and one of their mixtures.

[0106] Advantageously, the chelating agent is present in an amount ranging from 0.01% by weight to 5% by weight, preferably from 0.05% by weight to 3% by weight, and more preferably from 0.1% by weight to 1% by weight, relative to the total weight of the developer composition. Aqueous solvent

[0107] The developer composition of the present invention may include at least one aqueous solvent.

[0108] Preferably, the aqueous solvent of the developer composition according to the present invention is chosen from water; water-miscible or at least partially water-miscible compounds, for example C2-C8 polyols, and monoalcohols, such as ethanol and isopropanol; and mixtures thereof.

[0109] The term “polyol” should be understood as designating any organic molecule comprising at least two free hydroxyl groups.

[0110] Preferably, the developer composition according to the present invention comprises water.

[0111] Advantageously, water is present in an amount ranging from 30% by weight to 99% by weight, preferably from 50% by weight to 98% by weight, and more preferably from 70% by weight to 97% by weight, relative to the total weight of the developer composition. Retarder composition

[0112] The coloring kit according to the present invention includes a retardant composition. Pyrazolone compound

[0113] The retarder composition according to the present invention comprises at least one pyrazolone compound. Preferably, the retarder composition does not comprise any dyes other than the pyrazolone compound. Preferably, the retarder composition does not comprise the oxidative dye as defined above for the dye composition. Preferably, the retarder composition does not comprise the oxidation base and coupler as defined above for the dye composition. As used herein, the term "dye" refers to a colored substance that chemically binds to the substrate to which it is applied. Preferably, the retarder composition does not comprise any oxidants, for example, those as defined above for the developer composition.

[0114] As used herein, the expression "pyrazolone compound" means a compound that is an unsubstituted or substituted pyrazolone or that contains at least one pyrazolone structure. As used herein, the term "pyrazolone" has a common meaning in the chemical or cosmetic field, and may mean a compound in which two hydrogen atoms bonded to a carbon atom on the pyrazoline or pyrazole ring are substituted by an oxo group, and the pyrazoline or pyrazole ring is optionally further hydrogenated for the unsaturated bond(s). Preferably, the expression "compound that contains at least one pyrazolone structure" means a compound in which the pyrazolone removes one or more hydrogen atoms. to bind to one or more other groups or fractions by means of at least one single bond and / or at least one double bond, including also a bridged ring and a spiro ring, and / or to fuse to one or more other unsubstituted or substituted rings which may be carbocyclic or heterocyclic, including also aromatic and heteroaromatic, to form a fused polycyclic ring system which is optionally hydrogenated further for the unsaturated bond(s), e.g., unsubstituted or substituted, and optionally hydrogenated pyrazolopyrazolones.

[0115] Preferably, the pyrazolone compound is chosen from among pyrazolones substituted by at least one aryl and / or at least one alkyl, provided that the number of aryl and alkyl substituents is not greater than 3; diamino-N,N-dihydropyrazolopyrazolones; and mixtures thereof.

[0116] For pyrazolones substituted with at least one aryl and / or at least one alkyl group, said alkyl is preferably a CrC4 alkyl, and the aryl is preferably an unsubstituted phenyl or a phenyl substituted with at least one alkyl, preferably a C1-C4 alkyl. For example, the compound pyrazolone may be a pyrazolone substituted with at least one phenyl and at least one C1-C4 alkyl, for example, a pyrazolone substituted with a phenyl group and a methyl group, and a pyrazolone substituted with a phenyl group and an ethyl group. Examples include phenylmethylpyrazolone (PMP), for example, 3-methyl-1-phenyl-5-pyrazolone.

[0117] For diamino-N,N-dihydropyrazolopyrazolones, examples that may be cited include, but are not limited to, 2,3-diamino-6,7-dihydro-1H,5H-pyrazolo[1H,2-a]pyrazol-1-one, 2-amino-3-ethylamino-6,7-dihydro-1H,5H-pyrazolo[1H,2-a]pyrazol-1-one, 2-amino-3-isopropylamino-6,7-dihydro-1H,5H-pyrazolo[1H,2-a]pyrazol-1-one, 2-amino-3-(pyrrolidin-1H-yl)-6,7-dihydro-1H,5H-pyrazolo[1H,2-a]pyrazol-1-one, 2-amino-3-(2-hydroxyethyl)amino-6,7-dihydro-1H,5H-pyrazolo[ 1,2-a]pyrazol-1 -one, 2-amino-3-dimethylamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-l-one and 2,3-diamino-6-hydroxy-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1 -one.

[0118] Preferably, the pyrazolone compound is selected from pyrazolones substituted by at least one aryl and / or at least one alkyl, said alkyl preferably being a C1-C4 alkyl, and the aryl preferably being an unsubstituted phenyl or a phenyl substituted by at least one alkyl, preferably a C1-C4 alkyl.

[0119] More preferably, the pyrazolone compound is a pyrazolone substituted by at least one phenyl and at least one alkyl in C1-C4, preferably a pyrazolone substituted by a phenyl group and a methyl group.

[0120] More preferably still, the pyrazolone compound is phenyl methyl pyrazolone (PMP), for example, 3-methyl-l-phenyl-5-pyrazolone.

[0121] Advantageously, the pyrazolone compound is present in an amount ranging from 0.1% by weight to 20% by weight, preferably from 0.5% by weight to 15% by weight, and more preferably from 1% by weight to 10% by weight, relative to the total weight of the retardant composition.

[0122] Solvent capable of dissolving or dispensing the pyrazolone compound

[0123] The retardant composition according to the present invention comprises at least one solvent capable of dissolving or dispensing the pyrazolone compound.

[0124] As used herein, the expression "solvent capable of dissolving or dispensing the pyrazolone compound" means a liquid or paste (not solid) that can dissolve or dispense at least 0.1% by weight, preferably at least 1% by weight, and more preferably at least 5% by weight of the pyrazolone compound as defined above relative to the weight of the solvent at room temperature (25 °C) and atmospheric pressure (760 mmHg), i.e., allow a macroscopically homogeneous or transparent solution or dispersion to be obtained.

[0125] Preferably, the solvent capable of dissolving or dispensing the pyrazolone compound is chosen from oily solvents, aqueous solvents, and mixtures thereof. Oily solvent

[0126] According to the present invention, the retardant composition may include at least one oily solvent.

[0127] Hereafter, the expression "oily solvent" means a fatty compound or a fatty substance which is in the form of a liquid or a paste (not solid) at room temperature (25 °C) under atmospheric pressure (760 mmHg).

[0128] As oily solvents, those commonly used in cosmetics can be used alone or in combination. The oily solvent can be volatile or non-volatile. The oily solvent can be a non-polar oil or a polar oil.

[0129] In addition, the oily solvent may come from a mineral source and / or a vegetable source, and preferably from a mineral source.

[0130] According to the present invention, the oily solvent can be chosen from fatty alcohols, ester oils, ether oils, silicone oils, hydrocarbon oils, and mixtures thereof.

[0131] Fatty alcohols may be non-alkoxylated, saturated or unsaturated, linear or branched, and may include from 6 to 30 carbon atoms, preferably from 8 to 30 carbon atoms.

[0132] Ester oils may be liquid esters of saturated or unsaturated, linear or branched Ci-C26 aliphatic monoacids or polyacids and of saturated or unsaturated, linear or branched Ci-C26 aliphatic monoalcohols or polyalcohols, the total number of carbon atoms of the esters being greater than or equal to 10.

[0133] Ester oils can also be selected from monoesters, diesters, triesters, tetraesters, and mixtures thereof.

[0134] Ether oils may be an oil of formula RiOR2 in which Ri and R2 independently designate a linear, branched or cyclic alkyl group in C4-C24, preferably an alkyl group in C6-Ci8 and more preferably an alkyl group in C8-Ci2. It may be preferable that Ri and R2 be identical.

[0135] Examples of silicone oils include linear organopolysiloxanes such as dimethylpolysiloxane, methylphenylpolysiloxane, methylhydrogenopolysiloxane and others like them; cyclic organopolysiloxanes such as cyclohexasiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, and others like them; and mixtures thereof.

[0136] These silicone oils can also be organomodified. The organomodified silicones that can be used according to the present invention are silicone oils as defined above and further comprise in their structure one or more organofunctional groups attached via a hydrocarbon-based group.

[0137] Hydrocarbon oils may be selected from lower linear, branched or cyclic C6-Ci6 alkanes; linear or branched hydrocarbons containing more than 16 carbon atoms; and mixtures thereof.

[0138] Preferably, the oily solvent is chosen from mineral hydrocarbon oils.

[0139] As used herein, the expression "mineral hydrocarbon oil" refers to a colorless, odorless oil composed mainly of alkanes and cycloalkanes, and in particular higher alkanes, obtained from a mineral source, in particular a petroleum distillate.

[0140] "Mineral hydrocarbon oil" is also called "white oil", "oil paraffin”, “liquid paraffin”, “liquid petroleum” or “petroleum jelly”.

[0141] Preferably, the mineral hydrocarbon oil is selected from linear, branched or cyclic hydrocarbons having 6 or more carbon atoms, preferably from 10 to 50 carbon atoms, and more preferably from 16 to 35 carbon atoms, such as white oil, paraffin oil, liquid paraffin, liquid petroleum, petroleum jelly, hydrogenated polydecenes and polyisobutenes such as Parleam®.

[0142] According to the present invention, the mineral hydrocarbon oil can be commercially available from the supplier Sonnebom under the trade name Kaydol® Heavy White Mineral Oil, from the supplier Exxonmobil Chemical under the trade name Primol™ 352, from Sonnebom under the trade name Blandol, from Armedsa under the trade name Aemoil M-302CG, or from Exxonmobil Chemical under the trade name Marcol 82.

[0143] Preferably, the oily solvent according to the present invention is chosen from mineral hydrocarbon oils. More preferably, the oily solvent according to the present invention is chosen from mineral hydrocarbon oils that are linear, branched or cyclic hydrocarbons having 6 or more carbon atoms, preferably from 10 to 50 carbon atoms, and more preferably from 16 to 35 carbon atoms.

[0144] Advantageously, the oily solvent is present in an amount ranging from 50% by weight to 99% by weight, preferably from 60% by weight to 98% by weight, more preferably from 70% by weight to 97% by weight, and even more preferably from 80% by weight to 95% by weight, relative to the total weight of the retarder composition. Aqueous solvent

[0145] The retardant composition of the present invention may include at least one aqueous solvent.

[0146] Preferably, the aqueous solvent of the retarder composition according to the present invention is chosen from water; water-miscible or at least partially water-miscible compounds, for example C2-C8 polyols, or monoalcohols, such as ethanol and isopropanol; and mixtures thereof.

[0147] The term "polyol" should be understood as designating any organic molecule comprising at least two free hydroxyl groups. Examples of C2-C8 polyols that may be cited include, but are not limited to, butylene glycol, propylene glycol, dipropylene glycol, isoprene glycol, hexylene glycol, caprylyl glycol, glycerol (i.e., glycerin) and ethylene glycol.

[0148] Preferably, the retardant composition according to the present invention comprises water, and / or at least one C2-C8 polyol, preferably glycerol (i.e. glycerin).

[0149] Advantageously, the aqueous solvent is present in an amount ranging from 50% to 99% by weight, preferably from 60% to 98% by weight, more preferably from 70% to 97% by weight, for example from 85% to 96% by weight, or from 70% to 85% by weight, relative to the total weight of the retarder composition. Charge

[0150] According to the present invention, the retardant composition may comprise at least one filler.

[0151] The term “filler” should be understood as meaning colorless or white, mineral or natural particles of any shape, which are insoluble in the medium of the retardant composition of the present invention, regardless of the temperature at which the retardant composition is manufactured. These fillers are used in particular to modify the rheology or texture of the retardant composition of the present invention.

[0152] Preferably, the filler according to the present invention is chosen from hydrophobic sublimated silicas.

[0153] Sublimated silica that has undergone a hydrophobic surface treatment is suitable for use in the present invention. It is indeed possible to chemically modify the surface of silica by a chemical reaction that reduces the number of silanol groups present on the silica surface. In particular, it is possible to replace the silanol groups with hydrophobic groups to obtain hydrophobic silicas.

[0154] Hydrophobic groups can be:

[0155] - trimethylsiloxyl groups, which are obtained in particular by treatment of silica sublimated in the presence of hexamethyldisilazane. The silicas thus treated are known as "Silica silylate" according to the CTFA (8th edition, 2000). They are sold, for example, under the references Aerosil R812® by the company Degussa, and Cab-O-Sil TS-530® by the company Cabot;

[0156] - dimethylsilyloxyl or polydimethylsiloxane groups, which are in particular obtained by treating sublimed silica in the presence of polydimethylsiloxane or dimethyldichlorosilane. Silicas treated in this way are known as "Silica Dimethyl Silylate" according to the CTFA (5th edition, 2000). They are sold, for example, under the references Aerosil R972® and Aerosil R974® by Degussa, and CAB-O-SIL TS-610® and CAB-O-SIL TS-720® by Cabot.

[0157] Preferably, the filler according to the present invention is selected from hydrophobic sublimed silicas, wherein the hydrophobic group is preferably selected from trimethylsiloxyl groups, dimethylsilyloxyl or polydimethylsiloxane groups, and mixtures thereof. More preferably, the filler according to the present invention is selected from silica silylate, silica dimethyl silylate, and mixtures thereof.

[0158] Advantageously, the filler is present in an amount ranging from 0.01% to 20% by weight, preferably from 0.1% to 15% by weight, and more preferably from 1% to 10% by weight, relative to the total weight of the retardant composition. AMPS Polymer

[0159] The retarder composition according to the present invention may comprise at least one AMPS polymer.

[0160] The useful AMPS polymers may be homopolymers or copolymers, crosslinked or not, derived from at least the monomer acrylamido-2-methylpropanesulfonic acid, optionally in a form partially or totally neutralized by ammonia, or by a mineral base other than ammonia, such as sodium hydroxide or potassium hydroxide. The AMPS polymers are preferably totally or almost totally neutralized, i.e., at least 90% neutralized.

[0161] The AMPS polymer according to the present invention is preferably water-soluble or water-dispersible copolymers.

[0162] By "water-soluble or water-dispersible" means polymers which, when introduced into an aqueous phase at 25 °C, at a mass concentration of 1%, make it possible to obtain a macroscopically homogeneous and transparent solution, that is to say, a solution having a maximum light transmittance value, at a wavelength of 500 nm, through a 1 cm thick sample, of at least 60% and preferably at least 70%.

[0163] Examples of water-soluble or water-dispersible AMPS copolymers according to the present invention include:

[0164] - crosslinked acrylamide / acrylamido-2-methylpropanesulfonate copolymers of sodium, such as the copolymer used in the commercial product sold under the name Sepigel® 305 (CTFA name: Polyacrylamide / Ci3-Ci4 Isoparaffin / Laureth-7) or the copolymer used in the commercial product sold under the trade name Simulgel® 600 (CTFA name: Acrylamide / Sodium Acryloyldimethyltaurate / Isohexadecane / Polysorbate-80) by the company SEPPIC;

[0165] - copolymers of AMPS and vinylpyrrolidone or vinylformamide, such as the copolymer used in the commercial product sold under the name Aristoflex® AVC by the company Clariant (name CFTA: Ammonium acryloyldimethyltaurate / VP Copolymer) but neutralized with sodium hydroxide or potassium hydroxide;

[0166] - copolymers of AMPS and sodium acrylate, for example, the copolymer of AMPS / sodium acrylate such as the copolymer used in the commercial product sold under the name Simulgel® EG by the company SEPPIC (CTFA name: Acrylamide / Sodium Acryloyldimethyltaurate / Isohexadecane / Polysorbate-80);

[0167] - copolymers of AMPS and hydroxyethyl acrylate, for example a AMPS / hydroxyethyl acrylate copolymer such as the copolymer used in the commercial product sold under the name Simulgel® NS by the company SEPPIC (CTFA name: Hydroxyethyl acrylate / Sodium Acryloyldimethyltaurate copolymer (and) Squalane (and) Polysorbate-60), or a hydroxyethyl acrylate / sodium acryloyldimethyltaurate copolymer sold under the name Sepinov™EMT 10 by the company SEPPIC;

[0168] - the ammonium acryloyldimethyltaurate / methacrylate crosslinked polymer steareth-25.

[0169] Preferably, the AMPS polymer is selected from water-soluble or water-dispersible AMPS copolymers. More preferably, the AMPS polymer is selected from AMPS and hydroxyethyl acrylate copolymers. Even more preferably, the AMPS polymer is a hydroxyethyl acrylate / sodium acryloyldimethyltaurate copolymer.

[0170] Advantageously, the AMPS polymer is present in an amount ranging from 0.01% by weight to 10% by weight, preferably from 0.05% by weight to 5% by weight, and more preferably from 0.1% by weight to 3% by weight, relative to the total weight of the retardant composition. Non-ionic surfactant

[0171] The composition according to the present invention may include at least one nonionic surfactant. The type of nonionic surfactant that may be included in the retardant composition has the same definitions as that of the dye composition above.

[0172] The amount of the nonionic surfactant in the retarder composition may differ from that in the colorant composition. Advantageously, the nonionic surfactant is present in an amount ranging from 0.01% by weight to 20% by weight, preferably from 0.1% by weight to 15% by weight, and more preferably from 1% by weight to 10% by weight, relative to the total weight of the retarder composition. Additional ingredients

[0173] The three compositions according to the present invention may include one or more additional ingredients, chosen from those classically used in cosmetic products, and preferably dyeing products.

[0174] The three compositions according to the present invention may include any of the following additives: biological extracts, perfumes, active ingredients, and preservatives. In addition, the colorant composition according to the present invention may include a chelating agent as defined for the developer composition. Furthermore, the developer composition according to the present invention may include a thickening agent, preferably a polysaccharide thickening agent, for example, sclerotium gum. In addition, the retarder composition according to the present invention may include an antioxidant and / or a third pH adjuster as defined for the colorant composition. Furthermore, the colorant and / or the retardant composition according to the present invention may comprise an acrylate copolymer.

[0175] A person skilled in the art can adjust the type and quantity of additional ingredients present in the compositions according to the present invention by means of routine operations, so that the desired properties of these compositions are not negatively affected by the additional ingredients. Dyeing kit

[0176] The dyeing kit comprising the dye composition, developer composition and retarder composition as defined above is applicable for all dyeing products, preferably for hair dyeing.

[0177] For the dyeing kit according to the present invention, the pyrazolone compound as a retarder is composed of a solvent capable of dissolving or dispensing it in the retarder composition and the retarder composition is placed in a separate container from the dye composition and the developer composition.

[0178] The "container" may be made of any material capable of containing the colorant composition, developer composition, and retarder composition according to the present invention. For example, the container may be made of plastic, glass, rubber, polymers, silica gels, fibers, cotton, nylon, metallic foils, such as aluminum and tin foil, or composites comprising aluminum foil. Furthermore, the "container" may have any common shapes and sizes and use any form common in the field of cosmetics, particularly dyeing products. For example, the container may be in the form of a chamber, a pouch, a bottle, a packet, a capsule, a bag, a ampoule, or a sachet.

[0179] Preferably, each of the colorant composition, developer composition and retarder composition is placed in a separate container, i.e. the three compositions are placed in three respective containers.

[0180] In addition, the weight ratio of the dye composition, developer composition and retarder composition may be (1-20): (1-20): 1, preferably (5-15): (5-15): 1, and more preferably (8-12): (8-12): 1.

[0181] Preferably, the mixture of the dye composition and the developer composition has a pH value of 5.0 to 9.0, preferably 6.0 to 8.0. According to the present invention, the pH value of the mixture of the dye composition and the developer composition is measured after the dye composition and the developer composition in the dyeing kit are mixed and form a homogeneous mixture. Preferably, the pH value is measured immediately after the formation of the homogeneous mixture, preferably at 30 minutes, more preferably at 20 minutes, and most preferably at 10 minutes.

[0182] When the pyrazolone retarder compound is stored in a separate container from the dye composition and the developer composition, in a mixture with a solvent capable of dissolving or dispensing it, the stability of the retarder can be considerably improved, even after prolonged storage at elevated temperatures.

[0183] In a preferred embodiment, the present invention relates to a dyeing kit, comprising: a. a dye composition, comprising

[0184] al) 0.05% by weight to 15% by weight of at least one oxidative dye comprising at least one oxidation base and at least one coupler, relative to the total weight of the dye composition; a. a developer composition, comprising

[0185] bl) 0.1% by weight to 20% by weight of at least one oxidant, relative to the total weight of the developer composition; and a. a retardant composition, comprising

[0186] cl) 0.1% by weight to 20% by weight of at least one pyrazolone compound, relative to the total weight of the retardant composition, and

[0187] c2) at least one solvent capable of dissolving or dispensing the compound pyrazolone;

[0188] wherein the retarder composition is placed in a container separate from the dye composition and the developer composition.

[0189] In a preferred embodiment, the present invention relates to a dyeing kit, comprising: a. a dye composition, comprising

[0190] al) 0.1% by weight to 10% by weight of at least one oxidative dye comprising at least one oxidation base and at least one coupler, relative to the total weight of the dye composition,

[0191] wherein the oxidation base is selected from para-phenylenediamines, bis(phenyl)alkylenediamines, para-aminophenols, ortho-aminophenols, heterocyclic bases, and their addition salts, and mixtures thereof, and the coupler is selected from meta-phenylenediamines, meta-aminophenols, diaminophenols and their ether derivatives, meta-diphenols, naphthalene-based couplers, heterocyclic couplers, and their addition salts, and mixtures thereof; a. a developer composition, comprising

[0192] bl) 0.5% by weight to 15% by weight of at least one oxidant, relative to the total weight of the developer composition,

[0193] wherein the oxidant is selected from hydrogen peroxide, alkali metal bromates, inorganic alkali metal peroxides, organic peroxides, inorganic perhydrate salts, polymer complexes capable of releasing hydrogen peroxide, and mixtures thereof; and a. a retardant composition, comprising

[0194] cl) 0.5% by weight to 15% by weight of at least one pyrazolone compound, relative to the total weight of the retardant composition,

[0195] wherein the pyrazolone compound is selected from pyrazolones substituted with at least one aryl and / or at least one alkyl, provided that the number of aryl and alkyl substituents is not greater than 3; diamino-N,N-dihydropyrazolopyrazolones; and mixtures thereof; wherein the alkyl is preferably a C1-C4 alkyl, and the aryl is preferably an unsubstituted phenyl or a phenyl substituted with at least one alkyl, preferably a C1-C4 alkyl and

[0196] c2) at least one solvent capable of dissolving or dispensing the compound pyrazolone, selected from oily solvents, aqueous solvents, and mixtures thereof,

[0197] wherein, if present, the oily solvent is selected from fatty alcohols, ester oils, ether oils, silicone oils, hydrocarbon oils and mixtures thereof, and is preferably selected from mineral hydrocarbon oils, and if present, the aqueous solvent is selected from water; water-miscible or at least partially water-miscible compounds, for example C2-C8 polyols, and monoalcohols, such as ethanol and isopropanol; and mixtures thereof;

[0198] wherein the retarder composition is placed in a container separate from the dye composition and the developer composition.

[0199] In a preferred embodiment, the present invention relates to a dyeing kit, comprising: a. a dye composition, comprising

[0200] al) at least one oxidative dye, relative to the total weight of the dye composition, comprising 0.5% by weight to 5% by weight of an oxidation base of at least one para-phenylenediamine, and 0.5% by weight to 3% by weight of couplers of at least one meta-aminophenol and at least one hydroxybenzomorpholine; preferably, 0.5% by weight to 5% by weight of an oxidation base of toluene-2,5-diamine, and 0.5% by weight to 3% by weight of couplers of l-hydroxy-3-aminobenzene and 6-hydroxybenzomorpholine; a. a developer composition, comprising

[0201] bl) 1% by weight to 10% by weight of hydrogen peroxide, relative to the total weight of the developer composition; and a. a retardant composition, comprising

[0202] cl) 1% by weight to 10% by weight of at least one pyrazolone compound selected from pyrazolones substituted by at least one phenyl and at least one alkyl group in C1-C4, of Preference for phenyl methyl pyrazolone (PMP), for example, 3-methyl-l-phenyl-5-pyrazolone, relative to the total weight of the retardant composition, and

[0203] c2) at least one solvent capable of dissolving or dispensing the compound pyrazolone, selected from oily solvents, aqueous solvents, and mixtures thereof, wherein, if present, the oily solvent is selected from mineral hydrocarbon oils which are linear, branched or cyclic hydrocarbons having 6 or more carbon atoms, preferably from 10 to 50 carbon atoms, and more preferably from 16 to 35 carbon atoms, and, if present, the aqueous solvent comprises water, and / or at least one C2-C8 polyol, preferably glycerin;

[0204] wherein the retarder composition is placed in a container separate from the dye composition and the developer composition. Method and use

[0205] The dyeing kit according to the present invention is used in a process for dyeing keratin fibers, preferably hair.

[0206] When the pyrazolone compound as a retarder is composed of a solvent capable of dissolving or dispensing it in the retarder composition and the retarder composition is placed in a separate container from the dye composition and the developer composition, the stability of the retarder can be considerably improved, in order to effectively prevent the formation of spots, even after being stored at a high temperature for a long time.

[0207] According to the second aspect, the present invention relates to a process for dyeing keratin fibers, preferably hair, comprising: a. the mixture of the colorant composition, the developer composition, and the retarder composition according to the first aspect; and b. the application of the mixture obtained in step a) to the keratin fibers; and

[0208] Preferably, the retarder composition is mixed with the dye composition and / or the developer composition just before the application of the resulting mixture to the keratin fibers, for example, within 30 minutes, preferably within 20 minutes, more preferably within 10 minutes, before application of the resulting mixture to the keratin fibers. In this way, the stability of the retarder can be further improved, in order to better prevent the formation of stains, even after storage at elevated temperatures for a long period.

[0209] Preferably, in step b), the mixture obtained in step a) is applied to wet keratin fibers.

[0210] Preferably, the process further includes step c) of rinsing the keratin fibers with water after step b).

[0211] Preferably, the process further comprises step c) of rinsing the keratin fibers with water after step b), and step d) of drying the keratin fibers after step c).

[0212] The present invention is illustrated in more detail by the examples described below, which are given by way of non-limiting illustration. EXAMPLES

[0213] The main raw materials used, their trade names and their suppliers are listed in Table 1.

[0214] [Tables 1] INCI Name Trade Name Supplier COCAMIDOPROPYL BETAINE E (COCAMIDOPROPYL BETAINE) Dehyton® PK45 BASF ACRYLATE S COPOLYMER (ACRYLATES COPOLYME R) CARBOPOL® AQUA™ SF-1 POLYMER LUBRIZOL PEG-40 HYDROGENATED CASTOR OIL (PEG-40 HYDROGENATED CASTOR OIL) EUMULGIN™ CO 40-CMB BASF ERYTHORBIC ACID (ERYTHORBIC ACID) ERYTHORBIC ACID (ERYTHORBIC ACID) JIANGXI DEXI NG SODIUM IS 0 VIT AMIN C PHENYL METHYL PYRAZOLONE (PHENYL METHYL PYRAZOLONE) 1-PHENYL-3-METHYL-5-PYRAZOLONE ( 1-PHENYL-3-METHYL-5-PYRAZOLONE) ZHEJIANG DRA GON TECHNOLO GY TOLUENE-2,5-DIAMINE ( ​​TOLUENE-2,5-DIAMINE) IMEXINE OD NOVEAL Meta-AMINOPHENOL (Meta-AMINOPHENOL) 3-AMINOPHENOL (3-AMINOPHENOL) CHANGSHU LEA GUE CHEMICAL MINERAL OIL (MINERAL OIL) AEMOIL M-302CG AEMEDSA SILICA DIMETHYL SILYLATE (SILICA DIMETHYL SILYLATE) AEROSIL™R 972 EVONIK DEGUS SA SODIUM HYDROXYETHYL ACRYLATE / SODIUM ACRYLOYLDIMETHYL TAURATE COPOLYMER (HYDROXYETHYL ACRYLATE / SODIUM ACRYLOYLDIMETHYL TAURATE COPOLYMER) SEPINOV™EMT 10 SEPPIC , Sclerotium gum (Actigum CS 11 QDI) Cargill tetrasodium etidronate (tetrasodium etidronate) tetrasodium etidronate (tetrasodium etidronate) Aroma Holly Limited

[0215] Comparative Examples 1-3 and Inventive Examples 1-3

[0216] The compositions according to Comparative Examples (CE) 1-3 and inventive examples (EX) 1-3 comprising the ingredients indicated in Table 2 were prepared, all quantities being expressed as % relative to the total weight of each composition, unless otherwise indicated - MA: active substance.

[0217] [Tables2] Components Ex. 1 Ex. 2 Ex. 3 EC 1 EC2 EC 3 Dye Compositions Phase A WATER QS1 00 QS1 00 QS1 00 QS1 00 QS1 00 QS1 00 GLYCERIN 5.6 5.6 5.6 5.0 5.0 14.5 ACRYLATES COPOLYMER 2 MA 2 MA 2 MA 2.1 MA 1.8 MA 1.8 MA HYDROX ETHYL / ACRYLOY LDIMETHYL TAURA COPOLYMER SODIUM ACRYLATES / / / / / 0.05 MA Phase B ETHANOLAMINE 1.7 1.7 1.7 1.9 1.5 1.5 Phase C COCAMIDOPROPYL BETAINE 2.8 MA 2.8 MA 2.8 MA 2.6 MA 2.6 MA 2.6 MA PEG-40 HYDROGENATED CASTOR OIL 2.2 2.2 2.2 2.5 2.0 2.0 Phase D SILICA DIMETHYL SILYLATE / / / / 0.5 / MINERAL OIL / / / / 9.0 / Phase E TOLUENE-2,5-DIAMIN E 2.2 MA 2.2 MA 2.2 MA 2.0 MA 2.0 MA 2.0 MA SODIUM SULFITE 1.1 1.1 1.1 1.1 1.0 1.0 ERYTHORBIC ACID 1.1 1.1 1.1 1.1 1.0 1.0 HYDROXYBENZO MORPHOLIN 0.1 0.1 0.1 0.1 0.1 0.1 Meta-Aminophenol 1.4 1.4 1.4 1.3 1.3 1.3 Phenyl Methylpyrazolone / / / 0.5 0.5 0.5 Developer compositions Hydrogen peroxide 2.7 2.7 2.7 2.7 2.7 2.7 MA MA MA MA MA MA TETRASODIUM ETIDRONATE 0.1 0.1 0.1 0.1 0.1 0.1 SCLEROTIC GUM 1.0 1.0 1.0 1.0 1.0 1.0 WATER QS1 00 QS1 00 QS1 00 QS1 00 QS1 00 QS1 00 pH values, corrected with phosphoric acid 2.2 Retarder compositions GLYCERIN / / QS1 00 / / / PEG-40 HYDROGENATED CASTOR OIL 5.0 / / ACRYLATES COPOLYMER 3.0 MA / / ETHANOLAMINE 4.0 / / SODIUM SULFITE 1.0 / / ERYTHORBIC ACID 1.0 / / PHENYL METHYL PYRAZOL ONE 5.0 5.0 5.0 MINERAL OIL / QS1 00 / SILICE DIMETHYL SILYLATE / 5.0 / HYDROXYETHYL ACRYLATE / SODIUM ACRYLDIMETHYL TAURATE COPOLYMER / / 0.5 MA WATER QS1 00 / / Preparation process

[0218] 1. The colorant compositions of Inventive Examples 1-3 and Examples Comparatives 1-3 were prepared using a process comprising the following steps: i. adding the components of phase A into a first beaker, and stirring them until homogeneous to form the Premix 1-1; ii. the addition of the component of phase B into Premix 1-1 and their agitation until homogeneous to form Premix 1-2; iii. the addition of the components of phase C into Premix 1-2, and their agitation until homogeneous to form Premix 1-3; iv. only for EC 2, the addition of the components of phase D to Premix 1-3, and their agitation until homogeneous to form Premix 1-4; and v. the addition of the Phase E components into Premix 1-3 (Premix 1-4 for CE 2), and their agitation until homogeneous to form the final dye compositions. 2. The developer compositions of Inventive Examples 1-3 and Comparative Examples 1-3 were prepared using a process comprising the following steps:

[0219] 2a) the addition of water and sclerotium gum to a second beaker, and their stirring until homogeneous to form the 2-1 Premix;

[0220] 2b) the addition of tetrasodium etidronate to Premix 2-1, and their agitation until homogeneity to form the 2-2 Premix;

[0221] 2c) the addition of hydrogen peroxide to the Premix 2-2, and their agitation until homogeneity to form Premix 2-3; and

[0222] 2d) the correction of the pH value of Premix 2-3 using phosphoric acid to 2.2 to form the final developer compositions. 1. The retardant compositions of Inventive Examples 1-3 were prepared by a process comprising the following steps:

[0223] 3a) for Ex. 1, the addition of water and acrylate copolymer to a third beaker and their stirring until homogeneous, followed by the addition of ethanolamine in the third beaker and their stirring until homogeneous, followed by the addition of PEG-40 hydrogenated castor oil, sodium sulfite and erythorbic acid oil in the third beaker and their stirring until homogeneous to form Premix 3-1;

[0224] for Ex. 2, the addition of mineral oil and silica dimethyl silylate in a third beaker and their stirring until homogeneous to form Premix 3-1;

[0225] for Ex. 3. the addition of glycerin and hydroxyethyl acrylate / sodium acryloyldimethyltaurate copolymer to a third beaker and their stirring until homogeneous to form Premix 3-1; and

[0226] 3b) the addition of phenyl methyl pyrazolone to Premix 3-1, and their stirring until homogeneity to form the final retarder compositions of Inventive Examples 1-3. Stability test

[0227] After the preparation of the compositions comprising phenyl methyl pyrazolone, which are retarder compositions for Inventive Examples 1-3 and dye compositions for Comparative Examples 1-3, they were aged at TA for 1 month, at 45 °C for 1 month, at TA for 2 months and at 45 °C for 2 months.

[0228] The degradation fractions of phenyl methyl pyrazolone were determined for the six compositions using an HPLC device (UPLC ACQUITY range), and calculated by the following equation:

[0229] Degradation fraction = ((Initial quantity - Remaining quantity) / Initial quantity) * 100%

[0230] The results of the stability test were shown in Table 3.

[0231] [Tables3] Properties Ex. 1 Ex. 2 Ex. 3 EC. 1 EC. 2 EC. 3 Degradation fractions of phenyl methyl pyrazolone (IM at TA) 4% 0% 4% 28% 35% 24% Degradation fractions of phenyl methyl pyrazolone (IM at 45°C) 10% 0% 8% 73% 75% 61% Degradation fractions of phenyl methyl pyrazolone (2M at TA) 4% 0% 8% 33% 37% 32% Degradation fractions of phenyl methyl pyrazolone (2M at 45°C) 16% 0% 14% 83% 85% 78%

[0232] From the data in Table 3, it can be seen that, when the pyrazolone compound of Inventive Examples 1-3 is composed of a solvent capable of dissolving or dispensing it into each retarder composition and placed in a separate container from the dye composition and the developer composition, their stability is markedly improved compared to that of Comparative Examples 1-3 in which the pyrazolone compound is included in each dye composition, even after being stored even at a high temperature, for example 45 °C, and for a long period, for example two months.

[0233] Clear, colourless water (SFCW) performance test

[0234] The clear colorless water (SFCW) performance test was carried out according to the following procedure: 1. a mixture of 10 g of the dye composition and 10 g of the developer composition, both of which had been aged at a temperature of 45 °C for 2 months for Comparative Examples 1-3; or a mixture of 9 g of the dye composition, 10 g of developer composition and 1 g of retarder composition, all of which had been aged at a temperature of 45 °C for 2 months for Inventive Examples 1-3; 2. application of 4 g of each of the mixtures obtained on 1 g of the wet hair strand; 3. After 15 minutes, rinse each strand of hair in a beaker with 400 mL of water; 4. Comparison of each of the aspects of the rinse water in the beakers obtained from inventive examples 1-3 and comparative examples 1-4 with the internal atlas as shown in [Fig. 1] and assignment of scores for each of the rinse waters (scores: 0~10, the higher the score, the better the SFCW performance, a score of 10 meaning that the rinse water was as clean as clean water, a score of 1 meaning that the rinse water was as dark as black ink).

[0235] The results of the SFCW performance test are shown in Table 4.

[0236] [Tables4] Properties Ex. 1 Ex. 2 Ex. 3 EC. 1 EC. 2 EC. 3 SFCW performance after aging at 45°C for 2 months 8 9 8 5 4 4

[0237] From the data in Table 4, it can be seen that, due to the improved stability of the pyrazolone compound in Inventive Examples 1-3, the dye kits of Inventive Examples 1-3 can offer better SFCW performance, even after being stored at a high temperature, for example 45°C, and for a long period, for example, two months. Thus, it is demonstrated that the dye kit of the present invention can effectively prevent the formation of stains, even after being stored at a high temperature, for example, 45°C, for a long period, for example, two months.

Claims

Demands

1. Dye kit comprising: a) a dye composition, comprising a1) at least one oxidative dye; b) a developer composition, comprising b1) at least one oxidant; and c) a retarder composition, comprising c1) at least one pyrazolone compound, and c2) at least one solvent capable of dissolving or dispensing the pyrazolone compound; wherein the retarder composition is placed in a separate container from the dye composition and the developer composition.

2. Dyeing kit according to claim 1, wherein the pyrazolone compound is selected from pyrazolones substituted with at least one aryl and / or at least one alkyl, provided that the number of aryl and alkyl substituents is not greater than 3; diamino-N,N-dihydropyrazolopyrazolones; and mixtures thereof; wherein the alkyl is preferably a C1-C4 alkyl, and the aryl is preferably an unsubstituted phenyl or a phenyl substituted with at least one alkyl, preferably a C1-C4 alkyl; preferably, the pyrazolone compound is selected from pyrazolones substituted with at least one phenyl and at least one C1-C4 alkyl, preferably pyrazolones substituted with a phenyl group and a methyl group, more preferably phenyl methyl pyrazolone; 2,3-diamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one; 2-amino-3-ethylamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one;2-amino-3-isopropylamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one; 2-amino-3-(pyrrolidin-1-yl)-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one; 2-amino-3-(2-hydroxyethyl)amino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one; 2-amino-3-dimethylamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one; 2,3-diamino-6-hydroxy-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one; and their mixtures; more preferably, the compound pyrazolone is phenyl methyl pyrazolone; in which the pyrazolone compound is preferably present in an amount ranging from 0.1% by weight to 20% by weight, preferably from 0.5% by weight to 15% by weight, and more preferably from 1% by weight to 10% by weight, relative to the total weight of the retardant composition.

3. Dyeing kit according to claim 1 or 2, wherein the solvent capable of dissolving or dispensing the pyrazolone compound is selected from oily solvents, aqueous solvents, and mixtures thereof.

4. Dyeing kit according to claim 3, wherein the oily solvent is selected from fatty alcohols, ester oils, ether oils, silicone oils, hydrocarbon oils, and mixtures thereof; preferably, the oily solvent is selected from mineral hydrocarbon oils; more preferably, the oily solvent is selected from mineral hydrocarbon oils that are linear, branched, or cyclic hydrocarbons having 6 or more carbon atoms, preferably from 10 to 50 carbon atoms, and more preferably from 16 to 35 carbon atoms, wherein the oily solvent is preferably present in an amount from 50% by weight to 99% by weight, preferably from 60% by weight to 98% by weight, more preferably from 70% by weight to 97% by weight, and even more preferably from 80% by weight to 95% by weight, relative to the total weight of the retarder composition.

5. Dyeing kit according to claim 3, wherein the aqueous solvent is selected from water; water-miscible or at least partially water-miscible compounds, for example C2-C8 polyols, and monoalcohols, such as ethanol and isopropanol; and mixtures thereof; preferably, the aqueous solvent comprises water, and / or at least one C2-C8 polyol, preferably glycerin; Advantageously, the aqueous phase is present in an amount from 50% to 99% by weight, preferably from 60% to 98% by weight, and more preferably from 70% to 97% by weight, relative to the total weight of the retarder composition.

6. Dye kit according to any one of the preceding claims, wherein the retarder composition comprises at least one AMPS polymer, preferably selected from water-soluble or water-dispersible AMPS copolymers; more preferably, the AMPS polymer is selected from AMPS and hydroxyethyl acrylate copolymers; even more preferably, the AMPS polymer is a hydroxyethyl acrylate / sodium acryloyldimethyltaurate copolymer; wherein the AMPS polymer is present in an amount from 0.01% by weight to 10% by weight, preferably from 0.05% by weight to 5% by weight, and more preferably from 0.1% by weight to 3% by weight, relative to the total weight of the retarder composition.

7. Dye kit according to any one of the preceding claims, wherein the retardant composition comprises at least one nonionic surfactant which is preferably selected from polyoxyalkylated hydrogenated castor oils; polyoxyalkylated fatty acid esters of glycerol or optionally polyoxyalkylated fatty acid esters of polyglycerol; polyoxyalkylated fatty alcohol ethers; and mixtures thereof; More preferably, the non-ionic surfactant is selected from PEG-25 hydrogenated castor oil, PEG-30 hydrogenated castor oil, PEG-35 hydrogenated castor oil, PEG-40 hydrogenated castor oil, PEG-45 hydrogenated castor oil, PEG-50 hydrogenated castor oil, PEG-54 hydrogenated castor oil, PEG-55 hydrogenated castor oil, PEG-60 hydrogenated castor oil, and mixtures thereof; even more preferably, the non-ionic surfactant is PEG-40 hydrogenated castor oil;in which, the non-ionic surfactant is preferably present in an amount ranging from 0.01% by weight to 20% by weight, preferably from 0.1% by weight to 15% by weight, and more preferably from 1% by weight to 10% by weight, relative to the total weight of the retardant composition.

8. Dye kit according to any one of the preceding claims, wherein the developer composition comprises an additional component selected from:

9. a second pH corrector which is preferably chosen from among the acids; a chelating agent which is preferably chosen from tetrasodium glutamate diacetate, tetrasodium etidronate, and a mixture thereof; an aqueous solvent, preferably water; and mixtures thereof. Dyeing kit, including: a) a dye composition, comprising (a) at least one oxidative dye, relative to the total weight of the dye composition, comprising 0.5% by weight to 5% by weight of an oxidation base of at least one para-phenylenediamine, and 0.5% by weight to 3% by weight of couplers of at least one meta-aminophenol and at least one hydroxybenzomorpholine; preferably, 0.5% by weight to 5% by weight of an oxidation base of toluene-2,5-diamine, and 0.5% by weight to 3% by weight of couplers of l-hydroxy-3-aminobenzene and 6-hydroxybenzomorpholine; b) a developer composition, comprising (b) 1% to 10% by weight of hydrogen peroxide, relative to the total weight of the developer composition; and (c) a retarder composition, comprising (c) 1% by weight to 10% by weight of at least one pyrazolone compound selected from pyrazolones substituted with at least one phenyl and at least one alkyl group in C1-C4, preferably phenyl methyl pyrazolone (PMP), relative to the total weight of the retardant composition, and (c2) at least one solvent capable of dissolving or dispensing the pyrazolone compound selected from oily solvents, aqueous solvents, and mixtures thereof, wherein, if present, the oily solvent is selected from mineral hydrocarbon oils that are linear, branched or cyclic hydrocarbons having 6 or more carbon atoms, preferably from 10 to 50 carbon atoms, and more preferably from 16 to 35 carbon atoms, and, if present, the aqueous solvent comprises water, and / or at least one C2-C8 polyol, preferably glycerin; in which the retarder composition is placed in a separate container from the dye composition and the developer composition.

10. A method for dyeing keratin fibers, preferably hair, comprising: a) mixing the dye composition, developer composition and retarder composition according to any one of claims 1 to 9; and b) applying the mixture obtained in step a) to the keratin fibers.

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