Compositions containing oxidation dyes and amine salts

Abstract

The present invention relates to a product for dyeing keratinous fibers, preferably human keratinous fibers, more preferably human hair, comprising composition C and aqueous composition D having a pH of 1 to 6, wherein composition C comprises a) 1,4-diamino-2-methoxymethyl-benzene, and / or a salt thereof, and aqueous composition D comprises b) one or more alkylamine salts or alkanolamine salts represented by the general structure [Formula 1] TIFF2024533585000010.tif24170 [wherein R1, R2, and R3 are independently H, a linear C1-C6 alkyl group optionally substituted with one hydroxyl group, or a branched C3-C 12 wherein at least one of R1, R2, or R3 is different from H, and X- is an anion; and g) hydrogen peroxide.

Description

[Technical field]

[0001] The present invention relates to a product and a method for dyeing keratin fibres using 1,4-diamino-2-methoxymethyl-benzene in a first composition and alkylamines or alkanolamines in a second oxidizing composition. [Background technology]

[0002] Oxidative dyes have good dyeing ability and gray coverage, but their wash fastness can be compromised. Depending on the history of the dyed keratin fibers, the color fade dynamics vary with each shampooing.

[0003] This can lead to undesirable discoloration of the customer's keratin fibers, especially the hair, causing dissatisfaction and shortening the time span for dyeing the hair.

[0004] US Pat. No. 5,399,633 discloses amine salts in oxidizing compositions, but does not mention the properties and technical effects of the dyes of the present invention. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] European Patent Application Publication No. 3427720 Summary of the Invention [Means for solving the problem]

[0006] Thus, a first object of the present invention is a product for dyeing keratin fibres, preferably human keratin fibres and more preferably human hair, comprising - Composition C - Aqueous composition D having a pH of 1 to 6 and composition C comprises a) 1,4-diamino-2-methoxymethyl-benzene, and / or its salts and aqueous composition D comprises b) one or more alkylamine or alkanolamine salts represented by the general structure

[0007] [ka] [wherein R1, R2, and R3 are independently H, a linear C1-C6 alkyl group optionally substituted with one hydroxyl group, or a branched C3-C 12 alkyl or alkanol, where at least one of R1, R2, or R3 is different from H, and X- is an anion; g) Hydrogen peroxide The product includes:

[0008] A second object of the present invention is a method for dyeing keratin fibres, preferably human keratin fibres, more preferably human hair, comprising the steps of: x) preparing a composition C as defined above and mixing it with a composition D as defined above to obtain a ready-to-use composition having a pH of 7 to 12; xi) applying the ready-to-use composition to the keratin fibers and leaving it thereon for 160 minutes; xii) optionally rinsing the keratinous fibers and optionally drying the keratinous fibers. The method includes: DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] The inventors have unexpectedly found that the dye product according to claim 1 has excellent wash fastness, especially on previously damaged hair. Moreover, it exhibits excellent dye strength.

[0010] dyeing products The present invention relates to a product for dyeing keratin fibres, preferably human keratin fibres, more preferably human hair, comprising - composition C, - Aqueous composition D having a pH of 1 to 6 and composition C comprises a) 1,4-diamino-2-methoxymethyl-benzene, and / or its salts and aqueous composition D comprises b) one or more alkylamine or alkanolamine salts represented by the general structure

[0011] [ka] [wherein R1, R2, and R3 are independently H, a linear C1-C6 alkyl group optionally substituted with one hydroxyl group, or a branched C3-C 12 alkyl or alkanol, where at least one of R1, R2, or R3 is different from H, and X- is an anion; g) Hydrogen peroxide This applies to products including:

[0012] Suitable salts of the compounds of group a) are sulfates, hydrochlorides, hydrobromides, nitrates, phosphates, hydrogen phosphates, dihydrogen phosphates, methosulfates, citrates, succinates, tartrates, lactates, tosylates, benzenesulfonates, acetates and / or mixtures thereof, preferably sulfates and / or hydrochlorides and / or mixtures thereof, more preferably sulfates in view of dissolution rate.

[0013] From the standpoint of staining strength, it is preferred that the total concentration of the compounds of group a) in composition C is 0.01% by weight or more, preferably 0.02% by weight or more, even more preferably 0.05% by weight or more, and even more preferably 0.1% by weight or more, based on the total weight of composition C.

[0014] From the viewpoint of cosmetic safety, it is preferred that the total concentration of compounds of group a) in composition C is 65% by weight or less, preferably 50% by weight or less, even more preferably 35% by weight or less, even more preferably 30% by weight or less, even more preferably 20% by weight or less, relative to the total weight of composition C.

[0015] In order to achieve the above-mentioned effects, the total concentration of the compounds of group a) in composition C is preferably 0.01 to 65% by weight, more preferably 0.02 to 50% by weight, more preferably 0.05 to 35% by weight, even more preferably 0.1 to 30% by weight, and even more preferably 0.1 to 20% by weight, based on the total weight of composition C.

[0016] Optionally, composition C may contain one or more oxidation dye precursors or oxidation dye couplers different from group a), preferably 5-amino-2-methylphenol, 2-methyl-5-hydroxyethylaminophenol, 2,4,-diaminophenoxyethanol, 2-amino-4-hydroxyethylaminoanisole, 2-methyl-5-amino-6-chlorophenol, 1,3-bis-(2,4-diaminophenoxy)-propane, 2-bis(2-hydroxyethyl)-aminotoluene, 2-amino-5-methylphenol, resorcinol, 2-methylresorcinol, 4-methyl-2-phenylpropane, 2-methyl-5-phenylpropane, 2-methyl-2 ... -Chlororesorcinol, 2-amino-4-chlorophenol, 5-amino-4-methoxy-2-methylphenol, 2-aminophenol, 3-amino-phenol, 1-methyl-2-hydroxy-4-aminobenzene, 3-N,N-dimethylaminophenol, 2,6-dihydroxy-3,5-dimethoxypyridine, 5-amino-3-methylphenol, 6-amino-3-methylphenol, 2,4-diaminophenoxyethanol, 1,3-diamino-benzene, 1-amino-3-(2'-hydroxyethylamino)benzene, 1-amino-3-[ Bis(2'-hydroxyethyl)amino]benzene, α-naphthol, 4,6-dichlororesorcinol, 1,3-diamino-toluene, 4-hydroxy-1,2-methylenedioxybenzene, 1,5-dihydroxynaphthalene, 1,6-dihydroxynaphthalene, 1,7-dihydroxynaphthalene, 2,7-dihydroxynaphthalene, 1-hydroxy-2-methylnaphthalene, 4-hydroxy-1,2-methyldioxybenzene, 2,4-diamino-3-chlorophenol, 5-amino-2-methoxyphenol and / or 1-methoxy-2-a and / or mixtures thereof, and preferably the one or more compounds of group b) are 4-chlororesorcinol, 2-methylresorcinol, 1,3-bis-(2,4-diaminophenoxy)-propane, 2-methyl-5-amino-6-chlorophenol, 2-amino-3-hydroxypyridine, 5-amino-6-chloro-o-cresol, 3-amino-2,4-dichlorophenol, and / or their salts, and / or mixtures thereof, more preferably selected from 1,3-bis-(2,4-diamino-phenoxy)-propane, 2,4-diaminophenoxyethanol, 2-amino-4-hydroxyethylaminoanisole, 5-amino-6-chloro-o-cresol, 3-amino-2,4-dichlorophenol, and / or their salts, and / or mixtures thereof.

[0017] From the standpoint of dyeing strength, the total concentration of one or more oxidation dye precursors or oxidation dye couplers different from group a) is preferably 0.01% by weight or more, preferably 0.05% by weight or more, even more preferably 0.08% by weight or more, based on the total weight of composition C.

[0018] From the viewpoint of cosmetic safety, it is preferred that the total concentration of one or more oxidation dye precursors or oxidation dye couplers different from group a) is not more than 20% by weight, preferably not more than 15% by weight, even more preferably not more than 10% by weight, even more preferably not more than 5% by weight, even more preferably not more than 3.5% by weight, relative to the total weight of composition C.

[0019] In order to achieve the above-mentioned effects, the total concentration of one or more oxidation dye precursors or oxidation dye couplers different from group a) is preferably 0.01 to 20% by weight, more preferably 0.05 to 15% by weight, more preferably 0.08 to 10% by weight, even more preferably 0.08 to 5% by weight, and even more preferably 0.08 to 3.5% by weight, based on the total weight of composition C.

[0020] From the viewpoint of user convenience, it is preferred that composition C comprises one or more alkalizing agents, preferably one or more inorganic or organic alkalizing agents and / or mixtures thereof.

[0021] Preferably, composition C comprises one or more inorganic alkalizing agents, more preferably metasilicates, disilicates, carbonates, bicarbonates and / or phosphates, and / or metal salts thereof, such as alkali or alkaline earth metal salts, and / or mixtures thereof, preferably sodium metasilicate, trisodium phosphate and / or tripotassium phosphate, and / or mixtures thereof.

[0022] Additionally or alternatively, composition C may comprise one or more organic alkalizing agents, such as ammonia and / or salts thereof, one or more organic alkyl and / or alkanolamines represented by the general structure

[0023] [ka] [wherein R4, R5, and R6 are independently H, a linear C1-C6 alkyl group optionally substituted with one hydroxyl group, or a branched C3-C 12 alkyl or alkanol, where at least one of R4, R5, or R6 is different from H], and / or mixtures thereof.

[0024] Preferably, the one or more organic alkalizing agents are selected from alkyl and / or alkanolamines, more preferably from the viewpoint of providing alkalinity and cosmetic safety, as well as low odor, monoethanolamine, diethanolamine, monoethanolmethylamine, monoethanoldimethylamine, diethanolmethylamine, monoethanolethylamine, monoethanoldiethylamine, diethanolethylamine, monoethanolpropylamine, monoethanoldipropylamine, diethanolpropylamine, monoethanolbutylamine, diethanolbutylamine, trimethylamine, triethylamine, 2-amino-2-methylpropanol, tris-(hydroxymethyl)-aminomethane and / or mixtures thereof.

[0025] The most preferred alkalizing agents are selected from monoethanolamine, 2-amino-2-methylpropanol, tris-(hydroxymethyl)-aminomethane, ammonium hydroxide, and / or mixtures thereof, in terms of providing alkalinity and cosmetic safety.

[0026] From the standpoint of dyeing strength, the total concentration of the alkalizing agents, preferably inorganic or organic alkalizing agents, is preferably 0.1% by weight or more, more preferably 0.2% by weight or more, and even more preferably 0.5% by weight or more, relative to the total weight of composition C.

[0027] From the viewpoint of cosmetic safety, it is preferred that the total concentration of the alkalizing agents, preferably inorganic or organic alkalizing agents, is not more than 40% by weight, more preferably not more than 30% by weight, even more preferably not more than 20% by weight, relative to the total weight of composition C.

[0028] In order to achieve the above-mentioned effects, the total concentration of the alkalizing agent, preferably an inorganic or organic alkalizing agent, is preferably 0.1 to 40% by weight, preferably 0.2 to 30% by weight, more preferably 0.5 to 20% by weight, based on the total weight of composition C.

[0029] direct dye Optionally, composition C may contain one or more direct dyes.

[0030] Suitably, the one or more direct dyes may be HC Blue 18, HC Red 18, HC Yellow 16, Disperse Black 9, Acid Yellow 1, 2-amino-6-chloro-4-nitrophenol, and / or salts thereof, and / or mixtures thereof.

[0031] Suitably, the total concentration of direct dyes is at least 0.01% by weight relative to the total weight of Composition C, preferably at least 0.05% by weight, more preferably at least 0.1% by weight.

[0032] Suitably, the total concentration of direct dyes is less than 5% by weight, preferably less than 2.5% by weight, more preferably less than 1.5% by weight, based on the total weight of Composition C.

[0033] Suitably, the total concentration of direct dyes is from 0.01 to 5% by weight, preferably from 0.05 to 2.5% by weight, more preferably from 0.1 to 1.5% by weight, based on the total weight of Composition C.

[0034] Product form of composition C Composition C of the invention can be realized in various cosmetic forms.

[0035] aqueous composition From the viewpoint of user convenience, it is preferred that composition C of the present invention is an aqueous composition.

[0036] The term "aqueous" refers to composition C comprising a majority of water, i.e. composition C comprises water in a total concentration of preferably 50% by weight or more, even more preferably 60% by weight or more, even more preferably 70% by weight or more, even more preferably 80% by weight or more, relative to the total weight of composition C, with a view to achieving a cosmetically acceptable composition.

[0037] From the viewpoint of user convenience, it is further preferred that composition C contains water in a total concentration of 98% by weight or less, more preferably 95% by weight or less, and even more preferably 92% by weight or less, based on the total weight of composition C.

[0038] In order to achieve the above-mentioned effects, the total concentration of water in composition C is preferably 50 to 98% by weight, more preferably 60 to 95% by weight, even more preferably 70 to 92% by weight, and even more preferably 80 to 92% by weight, based on the total weight of each composition C.

[0039] From the viewpoint of dyeing performance, it is preferred that the pH of Composition C is 7 or more, more preferably the pH is 8 or more, even more preferably the pH is 8 or more, and even more preferably the pH is 9 or more.

[0040] From the standpoint of hair damage and dyeing performance, it is preferred that the pH of Composition C is 12 or less, more preferably the pH is 11.5 or less, and even more preferably the pH is 10.5 or less.

[0041] In order to achieve the above-mentioned effects, the pH of composition C is preferably 7 to 12, more preferably 8 to 11.5, even more preferably 9 to 11.5, and even more preferably 9 to 10.5.

[0042] Preferably, the pH is measured using a glass electrode at 25° C. and atmospheric pressure.

[0043] Powder composition - compounds of group c) From the viewpoint of the stability of the composition and convenience of use, it is preferable that composition C contains one or more powdery additives as compounds of group c).

[0044] The term "additive" refers to a compound that can act as a filler material for Composition C and as a dispersant for other compounds, but does not react with either the dye or the alkalizing agent, thus imparting high storage stability to the powder over time.

[0045] Composition C of the invention may contain organic and / or inorganic pulverulent additives in which the dyes are dispersed.

[0046] Suitable organic and / or inorganic powdery additives are, for example, diatomaceous earth, kaolin, bentonite, starch, in particular corn starch, tapioca starch, rice starch, wheat starch and potato starch, nylon powder, montmorillonite, gypsum, sawdust and perlite, more preferably corn starch from the viewpoint of stability.

[0047] Preferably, the total concentration of compounds of group c), and more preferably the total concentration of organic and / or inorganic pulverulent additives, is, with a view to achieving good dispersibility of the direct dye in the powder and rapid dissolution of the powder, at least 10% by weight, more preferably at least 15% by weight, even more preferably at least 20% by weight, even more preferably at least 25% by weight, even more preferably at least 30% by weight, even more preferably at least 35% by weight, relative to the total weight of composition C.

[0048] Preferably, the total concentration of compounds of group c), and more preferably the total concentration of organic and / or inorganic pulverulent additives, is not more than 98% by weight, more preferably not more than 95% by weight, even more preferably not more than 90% by weight, relative to the total weight of composition C, in order to achieve good dispersibility of the dye in the powder and freedom of formulation.

[0049] In order to achieve the above-mentioned effects, the total concentration of the compounds of group c), more preferably the total concentration of the organic and / or inorganic powdery additives, is preferably 10-98% by weight, more preferably 15-95% by weight, even more preferably 20-90% by weight, even more preferably 25-90% by weight, even more preferably 30-90% by weight, and even more preferably 55-90% by weight, based on the total weight of composition C.

[0050] From a stability standpoint, it is preferred that the total concentration of water in Composition C is 10% by weight or less, preferably 5% by weight or less, more preferably 1% by weight or less, even more preferably 0.1% by weight or less, and even more preferably Composition C is anhydrous.

[0051] The term "anhydrous" refers to a composition that is free of added water, but does not exclude residual moisture or bound water, such as water of crystallization.

[0052] In one embodiment of the invention, composition C may be a solid composition at 25° C. and atmospheric pressure, preferably a powder composition or a pellet composition or a tablet composition or a capsule composition, more preferably a hair dye powder composition or a hair dye pellet composition or a hair dye tablet composition, even more preferably a hair dye powder composition.

[0053] The term "powder" refers to a solid composition at 25°C and atmospheric pressure. This term relates to free-flowing powders and compressed powders such as tablets. The powder composition can also contain water, as long as its nature of being in a solid state at 25°C is not altered. Depending on the type of powder, a water content of up to 10% by weight, based on the total weight of composition C, can be tolerated. This does not exclude the presence of residual moisture from the air or water of crystallization bound to the components. Preferably, composition C is an anhydrous powder composition from the standpoint of stability.

[0054] Suitably, composition C is an anhydrous powder composition, preferably an anhydrous powder composition for hair dyeing.

[0055] d) Lipophilic compounds as compounds of the group Compositions C and / or D may contain one or more lipophilic compounds as compounds of group d).

[0056] Preferably, the compound of group d) is selected from the group consisting of C 12 ~C 22 Fatty alcohols, C3-C 22 Alcohol and C 12 ~C 22 Esters of fatty acids, C8-C 22 They are selected from fatty acids, vegetable oils, and / or silicones, and / or hydrocarbon-based products, and / or mixtures thereof.

[0057] Preferred C 12 ~C 22 The fatty alcohols are myristyl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, and cetearyl alcohol.

[0058] C3~C 22 Alcohol and C 12 ~C 22 Preferred esters of fatty acids are isopropyl myristate, isopropyl palmitate, and myristyl myristate.

[0059] Suitable for C8~C 22 The fatty acids are oleic acid, linoleic acid, and palmitic acid.

[0060] Suitable vegetable oils are olive oil, almond oil, sunflower oil, and argan oil.

[0061] Suitable silicones are non-aminated and / or aminated silicones, the latter commonly referred to as amodimethicones.

[0062] In view of forming a stable composition and being easy for the user to use, it is preferred that the total concentration of compounds according to group d) is at least 1% by weight, more preferably at least 2% by weight, even more preferably at least 3% by weight, calculated relative to the total weight of each of compositions C and / or D.

[0063] With a view to forming a stable composition, it is preferred that the total concentration of compounds of group d) is equal to or less than 20% by weight, more preferably equal to or less than 15% by weight, even more preferably equal to or less than 12% by weight, relative to the total weight of each of compositions C and / or D.

[0064] In order to achieve the above-mentioned effects, the total concentration of the compounds of group d) is preferably 1-20% by weight, preferably 2-15% by weight, more preferably 3-12% by weight, relative to the total weight of each of compositions C and / or D.

[0065] liquid composition In another embodiment of the present invention, composition C may be a liquid composition at 25° C. and atmospheric pressure, which contains one or more organic solvents as compounds of group e) relative to the total weight of composition C. Preferably, composition C is anhydrous from the viewpoint of dye stability.

[0066] The term "liquid" refers to the physical state at 25° C. and atmospheric pressure, i.e., composition C is a liquid at room temperature.

[0067] The term "anhydrous" refers to composition C that does not contain added water. It does not exclude the presence of residual moisture from the air or water of crystallization bound to the components.

[0068] In this aspect of the invention, composition C may contain one or more organic solvents.

[0069] The organic solvent can be selected to dissolve the dye. Preferred solvents are monohydric, dihydric, and trihydric alcohols and / or mixtures thereof.

[0070] Preferred monohydric, dihydric and trihydric alcohols from the standpoint of cosmetic safety and dissolving ability are ethanol, n-propanol, isopropanol, propylene glycol, ethylene glycol, benzyl alcohol, phenoxyethanol and glycerol, and / or mixtures thereof.

[0071] From the viewpoint of solution stability, it is further preferred that the total concentration of the organic solvent is 75% by weight or more, more preferably 80% by weight or more, and even more preferably 85% by weight or more, based on the total weight of composition C.

[0072] From the viewpoint of staining strength, the total concentration of the organic solvent is more preferably 98% by weight or less, more preferably 95% by weight or less, and even more preferably 92% by weight or less, based on the total weight of composition C.

[0073] In order to achieve the above-mentioned effects, the total concentration of the organic solvent is preferably 75 to 98% by weight, more preferably 80 to 95% by weight, and even more preferably 85 to 92% by weight, based on the total weight of composition C.

[0074] Hair dye oil In one embodiment of the invention, composition C is a hair dye oil.

[0075] Optionally, composition C is a paste-like composition having a viscosity of preferably 10,000 to 500,000 mPa·s, more preferably 20,000 to 400,000 mPa·s, even more preferably 30,000 to 250,000 mPa·s, as measured by cone and plate viscometry at 25° C. and atmospheric pressure, preferably with a Brookfield viscometer using spindle #4 at 10 rpm for 1 minute at 25° C. and atmospheric conditions.

[0076] For this purpose, the total concentration of one or more compounds of group d) is not more than 90% by weight, preferably between 50 and 90% by weight, relative to the total weight of composition C.

[0077] Preferably, the paste-like composition C is anhydrous from the standpoint of dye stability.

[0078] Composition D Composition D comprises one or more alkylamine or alkanolamine salts represented by the following general structure:

[0079] [ka] [wherein R1, R2, and R3 are independently H, a linear C1-C6 alkyl group optionally substituted with one hydroxyl group, or a branched C3-C 12 alkyl or alkanol, at least one of R1, R2, or R3 is different from H, and X- is an anion.

[0080] Preferably, from the standpoint of solubility, the anion X- is sulfate, hydrochloride, chloride, hydrobromide, bromide, nitrate, phosphate, hydrogenphosphate, dihydrogenphosphate, silicate, disilicate, carbonate, bicarbonate, methosulfate, citrate, succinate, tartrate, lactate, malate, maleate, tosylate, benzoate, benzenesulfonate, acetate, and / or mixtures thereof, preferably the anion X- is sulfate.

[0081] In view of commercial availability, it is preferred that the one or more alkylamine or alkanolamine salts are mono- and / or diethanolamine, butylethanolamine, butyldiethanolamine, dibutylethanolamine, methylethanolamine, triethanolamine, N-lauryldiethanolamine, diisopropanolamine, dimethylisopropanolamine, isopropanolamine, triisopropanolamine, isobutanolamine, tris-(hydroxymethyl)-aminomethane salts, and / or mixtures thereof, more preferably they are mono- and / or diethanolamine salts, and / or mixtures thereof, more preferably they are monoethanolamine salts.

[0082] From the standpoint of hair wash fastness, it is preferred that the total concentration of compounds of group b) is at least 0.1% by weight, more preferably at least 0.2% by weight, even more preferably at least 0.5% by weight, even more preferably at least 0.75% by weight, relative to the total weight of composition A.

[0083] From the viewpoint of cosmetic safety, it is preferred that the total concentration of compounds of group b) is not more than 30% by weight, more preferably not more than 20% by weight, even more preferably not more than 10% by weight, and even more preferably not more than 5% by weight, relative to the total weight of composition A.

[0084] In order to achieve the above-mentioned effects, the total concentration of one or more compounds of group b) is preferably 0.1 to 30% by weight, more preferably 0.2 to 20% by weight, more preferably 0.5 to 10% by weight, and even more preferably 0.75 to 5% by weight, based on the total weight of composition A.

[0085] From the viewpoint of hair wash fastness, the weight ratio of the compounds in group a) to the compounds in group b) in composition A is preferably from 10 to 0.001, preferably from 8 to 0.005, and more preferably from 8 to 0.0075.

[0086] Composition D contains hydrogen peroxide as a compound of group g).

[0087] From the viewpoint of dyeing performance, the concentration of hydrogen peroxide in composition D is preferably 0.1% by weight or more, more preferably 0.25% by weight or more, and even more preferably 1% by weight or more, based on the total weight of composition D.

[0088] From the viewpoints of product performance and user safety, the concentration of hydrogen peroxide in composition D is preferably 20% by weight or less, more preferably 15% by weight or less, and even more preferably 12% by weight or less, based on the total weight of composition D.

[0089] In order to achieve the above-mentioned effects, the concentration of hydrogen peroxide in composition D is preferably 0.1 to 20% by weight, more preferably 0.25 to 15% by weight, and even more preferably 1 to 12% by weight, based on the total weight of composition D.

[0090] From the viewpoint of stability and dyeing performance, composition D preferably has a pH of 1.5 to 5, more preferably 2 to 4.5.

[0091] From the standpoint of stability, compositions C and D are preferably kept separate until immediately prior to application to the keratinous fibers.

[0092] A suitable mixing weight ratio of compositions C and D is 1:1 to 1:20, preferably 1:2 to 1:15, more preferably 1:4 to 1:12, and even more preferably 1:5 to 1:10.

[0093] f) Surfactants as compounds according to Compositions C and / or D may further comprise one or more surfactants as compounds of group f), preferably selected from nonionic, anionic, cationic and / or amphoteric / zwitterionic surfactants, and / or their salts, and / or mixtures thereof, more preferably selected from anionic surfactants and / or their salts, with a view to stabilizing the composition and improving wetting and mixing properties.

[0094] Preferably, the anionic surfactant may be selected from ethoxylated or non-ethoxylated alkyl ether sulfate surfactants, alkyl sulfates, ethoxylated and / or non-ethoxylated alkyl carboxylates, ethoxylated or non-ethoxylated amino acid surfactants, and / or mixtures thereof, and / or salts thereof.

[0095] A good example is C. 10 ~C 22 and a degree of ethoxylation from 1 to 50, or mixtures thereof, and / or salts thereof.

[0096] Suitable nonionic surfactants may be selected from alkyl polyglycosides, ethoxylated triglycerides, ethoxylated fatty alcohols, ethoxylated fatty acid esters, and / or mixtures thereof.

[0097] Suitable cationic surfactants include C 12 ~C 22 or a quaternary ammonium surfactant having a carbon chain length of tertiary amine group and C 12 ~C22 and / or salts thereof, such as alkylamidoalkylamine surfactants, having at least one alkyl chain with a carbon chain length of 100 to 200. Suitable examples include cetrimonium chloride and behentrimonium chloride.

[0098] The preferred amphoteric / zwitterionic surfactants are betaine type. The preferred compounds can be selected from alkyl betaines and / or alkyl amido betaines. The preferred compound selected from alkyl betaines is lauryl betaine. The preferred compound selected from alkyl amido betaines is cocamidopropyl betaine. The present disclosure also relates to salts of the compounds.

[0099] A suitable concentration range for the surfactant is 0.1 to 10% by weight, based on the total weight of each of compositions C and / or D, in terms of improving the wetting of keratin fibers, physical stability, and mixability with other compositions.

[0100] Thickening Polymer From the viewpoint of cosmetic safety, it is further preferred that compositions C and / or D comprise one or more thickening polymers.

[0101] Compositions C and / or D may comprise one or more thickening polymers chosen from nonionic and / or anionic thickening polymers, and / or mixtures thereof.

[0102] Preferably, the thickening polymer is selected from polymers which give rise to aqueous solutions and / or dispersions at pH 7-12 having a viscosity of at least 1,000 mPa·s, measured at a polymer concentration of 1% by weight in water at 25° C., as determined by cone and plate viscosimetry at 25° C. under atmospheric conditions, relative to the total weight of the composition, as determined by a Brookfield viscometer with a suitable spindle, e.g. at 10 rpm for 1 minute at 25° C.

[0103] Suitable nonionic thickening polymers are cellulose-based polymers. Suitable examples of cellulose-based polymers include methylcellulose, hydroxymethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, hydroxyethyl-methylcellulose, and alkylated hydroxylcelluloses, such as (C2-C8)-alkylcelluloses or cetyl hydroxyethylcellulose.

[0104] Suitable anionic thickening polymers are selected from naturally occurring anionic polymers and / or synthetic anionic polymers.

[0105] Preferably, the natural anionic polymers can be selected from xanthan gum, dehydroxanthan gum, hydroxypropyl xanthan gum, carboxymethylcellulose, and starch-based polymers, such as vegetable starches, and / or their synthetically modified derivatives, such as hydroxypropyl starch phosphate. Equally preferred are alginic acid, sodium alginate, ammonium alginate, calcium alginate, gum arabic, and guar gum.

[0106] Suitable synthetic anionic polymers are associative thickening polymers, such as acrylates / steareth-30 methacrylate copolymers.

[0107] Preferred thickening polymers for the compositions of the present invention are natural anionic polymers in view of their biodegradability and low environmental impact, more preferably xanthan gum and / or dehydroxanthan gum.

[0108] Preferably, the total concentration of the thickening polymers of the present invention is at least 0.1% by weight, more preferably at least 0.25% by weight, more preferably at least 0.5% by weight, relative to the total weight of each of compositions C and / or D, in order to provide the compositions with sufficient viscosity.

[0109] Preferably, the total concentration of the thickening polymers of the present invention is 15% by weight or less, more preferably 12% by weight or more, and even more preferably 10% by weight or less, based on the total weight of each of compositions C and / or D, in order to provide sufficient viscosity to the composition and in terms of cost of goods.

[0110] In order to achieve the above-mentioned effects, the total concentration of thickening polymers in the composition of the present invention is from 0.1 to 15% by weight, preferably from 0.25 to 12% by weight, more preferably from 0.5 to 10% by weight, relative to the total weight of each of compositions C and / or D.

[0111] From the viewpoint of cosmetic safety, it is preferred that compositions C and / or D, if they are aqueous, have a viscosity of 1,000 to 25,000 mPa s, preferably 2,000 to 20,000 mPa s, more preferably 2,500 to 17,500 mPa s, as determined by cone and plate viscosimetry at 25°C under atmospheric conditions, preferably by a Brookfield viscometer using spindle #4 at 10 rpm for 1 minute at 25°C and atmospheric pressure.

[0112] Dyeing method The present invention relates to a method for dyeing keratinous fibers, preferably human keratinous fibers, more preferably human hair, comprising the steps of: x) preparing a composition C as defined above and mixing it with a composition D as defined above to obtain a ready-to-use composition having a pH of 7 to 12; xi) applying the ready-to-use composition to the keratin fibers and leaving it for 1 to 60 minutes; xii) optionally rinsing the keratinous fibers and optionally drying the keratinous fibers. The present invention also covers a method comprising the steps of:

[0113] If composition C includes an oxidizing agent, composition D may be free of an oxidizing agent.

[0114] The ready-to-use composition is applied to the keratin fibers as defined in step xi) and is preferably left for 1 to 60 minutes. From the viewpoint of sufficient dyeing, a more preferred time range for step xi) is 5 to 45 minutes, and a more preferred range is 10 to 35 minutes.

[0115] Optionally, heat may be applied while Composition C or the ready-to-use composition is left on the keratin fibers. A suitable temperature range is 30 to 50°C.

[0116] Preferably, from the viewpoint of resource saving, the mixing weight ratio of compositions C and D in step x) is 1:1 to 1:20, preferably 1:2 to 1:15, more preferably 1:4 to 1:12, and even more preferably 1:5 to 1:10.

[0117] The following examples are illustrative of the invention but are not intended to be limiting. EXAMPLES

[0118] [Table 1]

[0119] The compositions in Table 1 had a pH of 10.1±0.3.

[0120] Aqueous composition D weight% Monoethanolamine sulfate 7.0 Sulfuric acid 0.3 Hydrogen peroxide 4.5 Hydroxy-4-acetanilide 0.015 Add water until it reaches 100.0

[0121] The compositions of the present invention exhibited better hair wash fastness than the comparative compositions.

[0122] [Table 2]

[0123] A ready-to-use composition prepared by mixing Compositions C and D (weight ratio 1:1) in Table 2 immediately prior to application to hair had a pH of 10.0±0.5. In Inventive Example 6 and Comparative Example 4, MEA HCl is molar equivalent to MEA.

[0124] The compositions of the invention exhibited better dye strength and better hair wash fastness than the comparative compositions.

[0125] method Hair dye Goat hair tresses (21 cm, 2 g per tress) were permed for 20 minutes with 2 g of a commercial perm product available under the trade name Goldwell Topform Type 1, rinsed, and then treated with the oxidizing composition for 10 minutes. The tresses were shampooed and dried.

[0126] The dye composition in Table 1 and aqueous composition B were mixed in a weight ratio of 1:1 to prepare a composition to be prepared when used, having a pH of 9.5 to 10.0.

[0127] 2 g of the ready-to-use composition was applied to permed goat hair tresses for 30 minutes at 40°C. The tresses were then rinsed and dried. Colorimetric data was obtained in the CIE color system (L*, a*, b*) using a color difference meter (Datacolor600). Color difference (ΔE) was calculated according to the following formula:

[0128]

number

[0129] Hair wash fastness The dyed tresses were placed in a water bath containing 3.5% by weight sodium laureth sulfate, which was shaken at 40° C. for 30 minutes. This step was repeated 20 times, with one drying step after every 5 washes. After 20 shaker bath treatments, the tresses were blow-dried and the remaining color was measured as described above. The color difference between the hair after 20 washes and the hair immediately after dyeing was reported as ΔΔE.

[0130] The following examples fall within the scope of the present invention.

[0131] Example 7 of the present invention Composition C weight% 1,4-Diamino-2-methoxymethyl-benzene 0.097 5-Amino-6-chloro-o-cresol 0.1 HC Blue 18 0.05 HC Red 18 0.08 HC Yellow 16 0.02 Monoethanolamine sulfate 10.0 Diatomaceous earth Add until the total is 100.0

[0132] Composition C and aqueous composition D of the example in Table 1 are mixed in a weight ratio of 1:1 to prepare a composition to be prepared when used, having a pH of 9.5 to 10.0.

[0133] Example 8 of the present invention Composition C weight% 1,4-Diamino-2-methoxymethyl-benzenesulfate 0.097 5-Amino-6-chloro-o-cresol 0.1 HC Blue 18 0.05 HC Red 18 0.08 HC Yellow 16 0.02 2-Amino-2-methylpropanol hydrochloride 10.0 1,2-Propylene glycol Add until it reaches 100.0

[0134] Composition C and aqueous composition D of the example in Table 1 are mixed in a weight ratio of 1:1 to prepare a composition to be prepared when used, having a pH of 9.5 to 10.0.

Claims

1. 1. A product for dyeing keratin fibers, comprising: - Composition C, - aqueous composition D having a pH of 1 to 6 and composition C comprises a) 1,4-diamino-2-methoxymethyl-benzene, and / or a salt thereof and aqueous composition D comprises b) one or more alkylamine or alkanolamine salts represented by the general structure: 【Chemical 1】 [In the formula, R １ , R ２ , and R ３ are independently H, a linear C optionally substituted with one hydroxyl group, １ ~C ６ Alkyl, or branched C ３ ~C １２ alkyl or alkanol, R １ , R ２ , or R ３ at least one of is different from H and X- is an anion; g) hydrogen peroxide; wherein compositions C and D are kept separate until immediately before application to keratinous fibers.

2. 2. The product of claim 1, wherein the total concentration of compounds of group a) in composition C is from 0.01 to 65% by weight, relative to the total weight of composition C.

3. Composition C is a composition containing 5-amino-2-methylphenol, 2-methyl-5-hydroxyethylaminophenol, 2,4-diaminophenoxyethanol, 2-amino-4-hydroxyethylaminoanisole, 2-methyl-5-amino-6-chlorophenol, 1,3-bis-(2,4-diaminophenoxy)-propane, 2-bis(2-hydroxyethyl)-aminotoluene, 2-amino-5-methylphenol, resorcinol, 2-methylresorcinol, 4-chlororesorcinol, 2-amino-4-chlorophenol, 5-amino- 4-Methoxy-2-methylphenol, 2-aminophenol, 3-amino-phenol, 1-methyl-2-hydroxy-4-aminobenzene, 3-N,N-dimethylaminophenol, 2,6-dihydroxy-3,5-dimethoxypyridine, 5-amino-3-methylphenol, 6-amino-3-methylphenol, 2,4-diaminophenoxyethanol, 1,3-diamino-benzene, 1-amino-3-(2'-hydroxyethylamino)benzene, 1-amino-3-[bis(2'-hydroxyethyl)amino]benzene, α-naphtho toluene, 4-hydroxy-1,2-methylenedioxybenzene, 1,5-dihydroxynaphthalene, 1,6-dihydroxynaphthalene, 1,7-dihydroxynaphthalene, 2,7-dihydroxynaphthalene, 1-hydroxy-2-methylnaphthalene, 4-hydroxy-1,2-methyldioxybenzene, 2,4-diamino-3-chlorophenol, 5-amino-2-methoxyphenol and / or 1-methoxy-2-amino-4-(2'-hydroxyethylamino)-benzaldehyde.

3. The product of claim 1, further comprising one or more oxidation dye precursors or oxidation dye couplers different from group a) selected from benzene, 2,4,5,6-tetraaminopyrimidine, 2,5,6-triamino-5-pyrimidinol, 2-amino-3-hydroxypyridine, 5-amino-6-chloro-o-cresol, 3-amino-2,4-dichlorophenol, 1,3-bis-(2,4-diamino-phenoxy)-propane, 2-amino-4-hydroxyethylaminoanisole, and / or salts thereof, and / or mixtures thereof.

4. 3. A product according to claim 1 or 2, wherein the total concentration of the one or more oxidation dye precursors or oxidation dye couplers different from group a) in composition C is from 0.01 to 30% by weight, based on the total weight of composition C.

5. 3. A product according to claim 1 or 2, wherein composition C comprises one or more inorganic or organic alkalizing agents and / or mixtures thereof.

6. 6. A product according to claim 5, wherein composition C comprises one or more metasilicates, disilicates, carbonates, bicarbonates, and / or phosphates, and / or metal salts thereof, such as alkali or alkaline earth metal salts, and / or mixtures thereof.

7. 6. The product of claim 5, wherein composition C comprises one or more of sodium metasilicate, trisodium phosphate and / or tripotassium phosphate, and / or mixtures thereof.

8. 6. The product of claim 5, wherein Composition C comprises one or more alkyl and / or alkanolamines selected from diethanolamine, monoethanolmethylamine, monoethanoldimethylamine, diethanolmethylamine, monoethanolethylamine, monoethanoldiethylamine, diethanolethylamine, monoethanolpropylamine, monoethanoldipropylamine, diethanolpropylamine, monoethanolbutylamine, diethanolbutylamine, trimethylamine, triethylamine, 2-amino-2-methylpropanol, tris-(hydroxymethyl)-aminomethane, and / or mixtures thereof.

9. 9. The product of claim 8, wherein composition C comprises one or more alkyl and / or alkanolamines selected from monoethanolamine, 2-amino-2-methylpropanol, tris-(hydroxymethyl)-aminomethane, and / or mixtures thereof.

10. 6. The product of claim 5, wherein the total concentration of alkalizing agent in composition C is from 0.1 to 65% by weight, based on the total weight of composition C.

11. 3. A product according to claim 1 or 2, wherein composition C comprises one or more direct dyes selected from HC Blue 18, HC Red 18, HC Yellow 16, Disperse Black 9, Acid Yellow 1, 2-amino-6-chloro-4-nitrophenol, and / or salts thereof, and / or mixtures thereof.

12. 12. The product of claim 11, wherein the total concentration of direct dyes in composition C is from 0.01 to 20% by weight, based on the total weight of composition C.

13. 3. A product according to claim 1 or 2, wherein composition C comprises one or more powdery additives selected from the group c) of compounds of diatomaceous earth, kaolin, bentonite, starch, tapioca, rice, wheat, potato, nylon powder, montmorillonite, gypsum, sawdust and perlite.

14. 3. Product according to claim 1 or 2, in which composition C comprises corn starch as one or more powder additives as compounds of group c).

15. 14. The product of claim 13, wherein the total concentration of compounds of group c) in composition C is from 10 to 98% by weight, relative to the total weight of composition C.

16. 3. A product according to claim 1 or 2, wherein composition C is a solid composition at 25°C and atmospheric pressure.

17. 3. A product according to claim 1 or 2, wherein composition C is a powder hair dye composition.

18. 3. The product of claim 1 or 2, wherein the one or more alkylamine or alkanolamine salts of Composition D are mono- and / or diethanolamine, butylethanolamine, butyldiethanolamine, dibutylethanolamine, methylethanolamine, triethanolamine, N-lauryldiethanolamine, diisopropanolamine, dimethylisopropanolamine, isopropanolamine, triisopropanolamine, isobutanolamine, salts of tris(hydroxymethyl)-aminomethane, and / or mixtures thereof.

19. 3. The product of claim 1 or 2, wherein the one or more alkylamine or alkanolamine salts of composition D are mono- and / or diethanolamine salts and / or mixtures thereof.

20. 3. The product of claim 1 or 2, wherein the one or more alkylamine or alkanolamine salts of Composition D are monoethanolamine salts.

21. 3. A product according to claim 1 or 2, wherein the total concentration of one or more compounds of group b) in composition D is between 0.1 and 30% by weight relative to the total weight of composition D.

22. Composition C and / or Composition D contains, as a compound of group d), C １２ ~C ２２ Fatty alcohols, C ３ ~C ２２ Alcohol and C １２ ~C ２２ Esters of fatty acids, C ８ ~C ２２ 3. A product according to claim 1 or 2, comprising one or more lipophilic compounds chosen from fatty acids, vegetable oils, and / or silicones, and / or hydrocarbon-based products, and / or mixtures thereof.

23. d) one or more C compounds according to the group １２ ~C ２２ The fatty alcohols are myristyl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, and cetearyl alcohol, and the compounds of group d) are C ３ ~C ２２ Alcohol and C １２ ~C ２２ The one or more esters of fatty acids are isopropyl myristate, isopropyl palmitate, and myristyl myristate, and the compound of group d) is one or more C ８ ~C ２２ 23. The product of claim 22, wherein the fatty acids are oleic acid, linoleic acid, and palmitic acid, the one or more vegetable oils as compounds of group d) are olive oil, almond oil, sunflower oil, and argan oil, and the one or more silicones as compounds of group d) are non-aminated and / or aminated silicones, and / or mixtures thereof.

24. 23. The product of claim 22, wherein the total concentration of compounds of group d) in composition C and / or D is from 1 to 20% by weight, relative to the total weight of composition C and / or D, respectively.

25. 3. A product according to claim 1 or 2, wherein composition C is a hair dye oil.

26. 26. The product of claim 25, wherein Composition C has a paste-like viscosity of 10,000 to 500,000 mPa·s as measured by cone and plate viscometry at 25° C. and atmospheric pressure.

27. 22. The product of claim 21, wherein the total concentration of one or more compounds of group d) in composition C is from 50 to 90% by weight relative to the total weight of composition C.

28. 3. A product according to claim 1 or 2, wherein composition C and / or D comprises one or more surfactants as compounds of group f) selected from nonionic surfactants, anionic surfactants, cationic surfactants, and / or amphoteric / zwitterionic surfactants, and / or salts thereof, and / or mixtures thereof.

29. f) one or more compounds of group f) are selected from ethoxylated or non-ethoxylated alkyl ether sulfate surfactants, alkyl sulfates, ethoxylated and / or non-ethoxylated alkyl carboxylates, ethoxylated or non-ethoxylated amino acid surfactants, and / or mixtures thereof, and / or salts thereof; １０ ~C ２２ and a degree of ethoxylation from 1 to 50, or ethoxylated alkyl ether sulfate surfactants or mixtures thereof and / or salts thereof.

30. 29. A product according to claim 28, wherein the total concentration of surfactants in composition C and / or D is from 0.1 to 10% by weight, based on the total weight of composition C and / or D, respectively.

31. 3. A product according to claim 1 or 2, wherein composition C and / or D comprises one or more thickening polymers.

32. 3. A product according to claim 1 or 2, wherein composition C and / or D comprises one or more thickening polymers selected from nonionic and / or anionic thickening polymers, and / or mixtures thereof.

33. The one or more thickening polymers may be selected from methyl cellulose, hydroxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxyethyl-methyl cellulose, and alkylated hydroxyl cellulose, such as (C ２ ~C ８ 33. The product of claim 32, wherein the one or more thickening polymers are non-ionic thickening polymers selected from alkylcelluloses or cetyl hydroxyethylcellulose, and the one or more thickening polymers are anionic thickening polymers selected from xanthan gum, dehydroxanthan gum, hydroxypropyl xanthan gum, carboxymethylcellulose and starch-based polymers such as vegetable starches and / or their synthetically modified derivatives such as hydroxypropyl starch phosphate, alginic acid, sodium alginate, ammonium alginate, calcium alginate, gum arabic, and guar gum, and / or the one or more thickening polymers are associative thickening polymers such as acrylates / steareth-30 methacrylate copolymer.

34. 33. The product of claim 32, wherein the one or more thickening polymers are natural anionic polymers selected from xanthan gum and / or dehydroxanthan gum.

35. 33. A product according to claim 32, wherein the total concentration of thickening polymers in composition C and / or D is from 0.1 to 15% by weight, based on the total weight of composition C and / or D.

36. 33. The product of claim 32, wherein Composition D has a viscosity of 1,000 to 25,000 mPa s as determined at 25°C under atmospheric conditions by cone and plate viscosimetry using a Brookfield viscometer with spindle #4 at 10 rpm for 1 minute at 25°C and atmospheric pressure.

37. 3. The product of claim 1 or 2, wherein composition D has a pH of 2 to 4.

5.

38. 3. A product according to claim 1 or 2, wherein the total concentration of hydrogen peroxide in composition D is from 0.1 to 20% by weight, relative to the total weight of composition D.

39. 3. The product according to claim 1, wherein the mixing weight ratio of compositions C and D is 1:1 to 1:

20.

40. 3. The product according to claim 1 or 2, wherein the mixing weight ratio of compositions C and D is 1:5 to 1:

10.

41. 1. A method for dyeing keratin fibers, comprising: x) preparing a composition C according to claim 1 or 2 and mixing it with a composition D according to claim 1 or 2 to obtain a ready-to-use composition having a pH of 7 to 12; xi) applying the ready-to-use composition to the keratin fibers and leaving it for 1 to 60 minutes; xii) optionally rinsing the keratinous fibers and optionally drying the keratinous fibers A method comprising:

42. 42. The method according to claim 41, wherein the ready-to-use composition is applied to the keratinous fibers as described in step ii) and left for 1 to 60 minutes.

43. 42. The method according to claim 41, wherein heat is applied in the temperature range of 30°C to 50°C while the ready-to-use composition is left on the keratin fibers.

44. 42. The method of claim 41, wherein the mixing weight ratio of compositions C and D in step x) is 1:1 to 1:

20.

45. 42. The method of claim 41, wherein the mixing weight ratio of compositions C and D in step x) is 1:5 to 1:10.

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