Dyeing composition containing direct dyes

Abstract

The present invention relates to a dyeing composition A for keratinous fibers, preferably human keratinous fibers, more preferably human hair, comprising a) one or more alkalizing agents, b) one or more direct dyes, c) one or more compounds selected from xanthan and / or imidazolidine-2,4-diones, and / or their derivatives, and / or mixtures thereof, and / or their salts, wherein the compounds of group b) are certain direct dyes, and the total concentration of alkalizing agents as compounds of group a), preferably the total concentration of one or more alkanolamines and / or salts thereof, and / or ammonia and / or salts thereof, is between 0.5 and 40% by weight relative to the total weight of composition A.

Description

[Technical Field]

[0001] This invention relates to compositions for dyeing keratin fibers with direct dyes. Furthermore, a kit of parts and a dyeing method are disclosed. [Background technology]

[0002] Direct dyes have been a focus of interest for the past decade, particularly in the cosmetics industry. In contrast to oxidation dyes, direct dyes are easy to apply to keratin fibers, but often lack durability on keratin fibers.

[0003] One of the technical challenges associated with direct dyes is their generally poor durability on keratin fibers that have been previously damaged by chemical services such as perms or bleaching. Chemical services alter the internal structure of the hair, which can improve dye absorption compared to virgin hair, but at the same time, direct dyes can be easily washed out. Therefore, consumers who have previously chemically treated their hair may experience a decrease in the durability of direct dyes, especially after several washes. Furthermore, while the color intensity weakens over several washes, the hair may also undergo undesirable color transfer depending on the different leaching rates of individual direct dyes.

[0004] In the daily operations of a hair salon, analyzing the pre-treatment damage to a client's hair is not always easy, even for professionals. Some pre-applied treatments may have already been washed away, and their effects are no longer visible. Assuming healthy hair is the basis for direct dyeing, the exceptionally low durability of the dye treatment can be a surprise to both hairdressers and clients. Such an experience is bound to be disappointing for everyone involved. [Overview of the Initiative] [Problems that the invention aims to solve]

[0005] In short, prior art has not adequately solved the above problems, and therefore there is a real need to develop a direct dyeing composition for keratin fibers that exhibits high dyeing strength and good durability regardless of the chemical treatment history. [Means for solving the problem]

[0006] The first object of the present invention is, a) One or more alkalizing agents, b) One or more direct dyes, c) One or more compounds selected from the following groups:

[0007] [ka] [In the formula, R1, R2, and R3 are independently selected from H and CH3] and / or mixtures thereof. 2) One or more imidazolidine-2,4-diones and / or derivatives thereof, and / or mixtures thereof and / or salts thereof A dyeing composition A for keratin fibers, preferably for human keratin fibers, more preferably for human hair, comprising: One or more direct dyes as compounds of group b) are Acid Black 1, Acid Blue 1, Acid Blue 3, Food Blue 5, Acid Blue 7, Acid Blue 9, Acid Blue 74, Acid Orange 3, Acid Orange 6, Acid Orange 7, Acid Orange 10, Acid Red 1, Acid Red 14, Acid Red 18, Acid Red 27, Acid Red 50, Acid Red 52, Acid Red 73, Acid Red 87, Acid Red 88, Acid Red 92, Acid Red 155, Acid Red 180, Acid Violet 9, Acid Violet 43, Acid Violet 49, Acid Yellow 1, Acid Yellow 23, Acid Yellow 3, Food Yellow No.8, D&C Brown No.1, D&C Green No.5, D&C Green No.8, D&C Orange No.4, D&C Orange No.10, D&C Orange No.11, D&C Red No.21, D&C Red No.27, D&C Red No.33, D&C Violet 2, D&C Yellow No.7, D&C Yellow No.8, D&C Yellow No.10, FD&C Red 2, FD&C Red 40, FD&C Red No.4, FD&C Yellow No.6. A composition selected from FD&C Blue 1, Food Black 1, Food Black 2, Disperse Black 9, Disperse Violet 1, Acid Red 52, DC Violet 2, DC Red 33, DC Orange 4, DC Red 27, DC Yellow 10, HC Blue 18, HC Red 18, HC Yellow 16, Basic Blue 6, Basic Blue 7, Basic Blue 9, Basic Blue 26, Basic Blue 41, Basic Blue 99, Basic Brown 4, Basic Brown 16, Basic Brown 17, Natural Brown 7, Basic Green 1, Basic Red 2, Basic Red 12, Basic Red 22, Basic Red 76, Basic Violet 1, Basic Violet 2, Basic Violet 3, Basic Violet 10, Basic Violet 14, Basic Yellow 57, Basic Red 51, Basic Yellow 87, HC Blue 17 and Basic Orange 31. Most preferred are Basic Red 51, Basic Yellow 87, Basic Orange 31, HC Blue 17 and Basic Blue 124, HC Blue No.2, HC Blue No.4, HC Blue No.5, HC Blue No.6, HC Blue No.7, HC Blue No.8, HC Blue No.9, HC Blue No.10, HC Blue No.11, HC Blue No.12, HC Blue No.13, HC Brown No.1, HC Brown No.2, HC Green No.1, HC Orange No.1, HC Orange No.2, HC Orange No.3, HC Orange No.5, HC Red BN, HC Red No.1, HC Red No.3, HC Red No.7, HC Red No.8, HC Red No.9, HC Red No.10, HC Red No.11, HC Red No.13, HC Red No.54, HC Red No.14, HC Violet BS, HC Violet No.1, HC Violet No.2, HC Yellow No.2, HC Yellow No.4, HC Yellow No.5, HC Yellow No.6, HC Yellow No.7, HC Yellow No.8, HC Yellow No.9, HC Yellow No.10, HC Yellow No.11, HC Yellow No.12, HC Yellow No.13, HC Yellow No.14, HC Yellow No.15, 2-amino-6-chloro-4-nitrophenol, and / or mixtures thereof and / or salts thereof. The total concentration of the alkalizing agent as the compound of group a), preferably the total concentration of one or more alkanolamines and / or their salts, and / or ammonia and / or its salts, is 0.5 to 40% by weight based on the total weight of composition A.

[0008] A second object of the present invention is a hair dyeing composition as defined above, having a pH of 7 to 12, preferably 8 to 11.5, more preferably 9 to 11, and optionally containing one or more oxidizing agents, preferably hydrogen peroxide.

[0009] A third object of the present invention is - Composition A as defined above - Composition B having a pH of 1 to 6 and optionally containing one or more oxidizing agents A kit of parts for dyeing keratin fibers, preferably human keratin fibers, more preferably human hair, comprising

[0010] A fourth object of the present invention is - A first composition comprising one or more compounds of group b) as defined above - A second composition comprising one or more compounds of group c) as defined above A kit of parts for dyeing keratin fibers, preferably human keratin fibers, more preferably human hair, comprising The first and / or second, and / or any third composition comprises one or more compounds of group a) as defined above. is a kit of parts.

[0011] A fifth object of the present invention is a method for dyeing keratin fibers, preferably human keratin fibers, more preferably human hair, comprising: i) preparing a composition A as defined in claims 1 to 12, optionally a composition B as defined in claim 13, and / or optionally one or more further compositions; ii) optionally mixing composition A and B, or composition A and one further composition, or composition A and B and one or more further compositions to obtain a ready-to-use composition having a pH of 7 to 12; iii) applying composition A or the ready-to-use composition of step ii) to the keratin fibers; iv) leaving composition A or the ready-to-use composition to stand for 1 to 60 minutes and optionally heating the keratin fibers to a temperature range of 40 to 60 °C; v) rinsing the keratin fibers and optionally shampooing the keratin fibers. The method comprises the steps of:

[0012] A sixth object of the present invention is - preparing a first composition comprising one or more compounds of group b) as defined above; - preparing a second composition comprising one or more compounds of group c) as defined above, wherein the first and / or second, and / or any third composition comprises one or more compounds of group a) as defined above; - mixing the first, second and optionally third compositions. A method for producing composition A as defined above, which method comprises the steps of:

Advantages of the Invention

[0013] The inventors of this invention unexpectedly found that the composition described in claim 1 has increased dyeing strength and exhibits improved durability of direct dyes. Furthermore, the cosmetic appearance of keratin fibers is improved. The latter effect relates to gloss and a healthy feel. [Modes for carrying out the invention]

[0014] Composition A The present invention relates to a dyeing composition A for keratin fibers, preferably human keratin fibers, more preferably human hair, a) One or more alkalizing agents, b) One or more direct dyes, c) One or more compounds selected from the following groups:

[0015] [ka] [In the formula, R1, R2, and R3 are independently selected from H and CH3] and / or mixtures thereof. 2) One or more imidazolidine-2,4-diones and / or derivatives thereof, and / or mixtures thereof and / or salts thereof Includes, In composition A, one or more direct dyes as compounds of group b) are Acid Black 1, Acid Blue 1, Acid Blue 3, Food Blue 5, Acid Blue 7, Acid Blue 9, Acid Blue 74, Acid Orange 3, Acid Orange 6, Acid Orange 7, Acid Orange 10, Acid Red 1, Acid Red 14, Acid Red 18, Acid Red 27, Acid Red 50, Acid Red 52, Acid Red 73, Acid Red 87, Acid Red 88, Acid Red 92, Acid Red 155, Acid Red 180, Acid Violet 9, Acid Violet 43, Acid Violet 49, Acid Yellow 1, Acid Yellow 23, Acid Yellow 3, Food Yellow No.8, D&C Brown No.1, D&C Green No.5, D&C Green No.8, D&C Orange No.4, D&C Orange No.10, D&C Orange No.11, D&C Red No.21, D&C Red No.27, D&C Red No.33, D&C Violet 2, D&C Yellow No.7, D&C Yellow No.8, D&C Yellow No.10, FD&C Red 2, FD&C Red 40, FD&C Red No.4, FD&C Yellow No.6. It is selected from FD&C Blue 1, Food Black 1, Food Black 2, Disperse Black 9, Disperse Violet 1, Acid Red 52, DC Violet 2, DC Red 33, DC Orange 4, DC Red 27, DC Yellow 10, HC Blue 18, HC Red 18, HC Yellow 16, Basic Blue 6, Basic Blue 7, Basic Blue 9, Basic Blue 26, Basic Blue 41, Basic Blue 99, Basic Brown 4, Basic Brown 16, Basic Brown 17, Natural Brown 7, Basic Green 1, Basic Red 2, Basic Red 12, Basic Red 22, Basic Red 76, Basic Violet 1, Basic Violet 2, Basic Violet 3, Basic Violet 10, Basic Violet 14, Basic Yellow 57, Basic Red 51, Basic Yellow 87, HC Blue 17 and Basic Orange 31. The most preferred ones are Basic Red 51, Basic Yellow 87, Basic Orange 31, HC Blue 17 and Basic Blue 124, HC Blue No.2, HC Blue No.4, HC Blue No.5, HC Blue No.6, HC Blue No.7, HC Blue No.8, HC Blue No.9, HC Blue No.10, HC Blue No.11, HC Blue No.12, HC Blue No.13, HC Brown No.1, HC Brown No.2, HC Green No.1, HC Orange No.1, HC Orange No.2, HC Orange No.3, HC Orange No.5, HC Red BN, HC Red No.1, HC Red No.3, HC Red No.7, HC Red No.8, HC Red No.9, HC Red No.10, HC Red No.11, HC Red No.13, HC Red No.54, HC Red No. 14, HC Violet BS, HC Violet No. 1, HC Violet No. 2, HC Yellow No. 2, HC Yellow No. 4, HC Yellow No. 5, HC Yellow No. 6, HC Yellow No. 7, HC Yellow No. 8, HC Yellow No. 9, HC Yellow No. 10, HC Yellow No. 11, HC Yellow No. 12, HC Yellow No. 13, HC Yellow No. 14, HC Yellow No. 15, 2-amino-6-chloro-4-nitrophenol, and / or mixtures thereof and / or salts thereof. The total concentration of alkalizing agents as compounds of group a), preferably one or more alkanolamines and / or their salts, and / or ammonia and / or its salts, is 0.5 to 40% by weight relative to the total weight of composition A.

[0016] Compounds of group a) Composition A of the present invention contains one or more alkalizing agents as compounds of group a).

[0017] From the viewpoint of providing alkalinity and ensuring cosmetic safety, it is preferable that the one or more alkalizing agents are one or more organic alkalizing agents, and / or ammonia and / or salts thereof.

[0018] From the viewpoint of providing alkalinity, cosmetic safety, and low odor, preferably one or more organic alkalizing agents are selected from alkyl and / or alkanolamines and / or their salts, and more preferably from monoethanolamine, diethanolamine, monoethanolmethylamine, monoethanoldimethylamine, diethanolmethylamine, monoethanolethylamine, monoethanoldiethylamine, diethanolethylamine, monoethanolpropylamine, monoethanoldipropylamine, diethanolpropylamine, monoethanolbutylamine, diethanolbutylamine, trimethylamine, triethylamine, 2-amino-2-methylpropanol, tris-(hydroxymethyl)-aminomethane and / or their salts and / or mixtures thereof.

[0019] The total concentration of alkalizing agents as compounds of group a) in the composition of the present invention, preferably one or more alkanolamines and / or their salts, and / or ammonia and / or its salts, is 0.5 to 40% by weight relative to the total weight of composition A.

[0020] From the viewpoint of providing alkalinity and ensuring cosmetic safety, the most preferred alkalizing agents as compounds of group a) are selected from monoethanolamine, 2-amino-2-methylpropanol, tris-(hydroxymethyl)-aminomethane and / or salts thereof, ammonia and / or salts thereof, and / or mixtures thereof.

[0021] In one aspect of the present invention, from the viewpoint of storage stability, the one or more alkalizing agents may be one or more inorganic alkalizing agents, preferably selected from metasilicates, carbonates and / or bicarbonates, and / or alkali salts or alkaline earth salts thereof, and / or mixtures thereof, but preferably sodium metasilicate.

[0022] From the viewpoint of providing alkalinity, the total concentration of the alkalizing agent, preferably one or more alkanolamines and / or their salts, and / or ammonia and / or its salts, is preferably 0.75% by weight or more, and more preferably 1% by weight or more, based on the total weight of composition A.

[0023] From the viewpoint of providing alkalinity, preventing hair damage and odor, the total concentration of the alkalizing agent, preferably one or more alkanolamines and / or their salts, and / or ammonia and / or its salts, is preferably 40% by weight or less, more preferably 30% by weight or less, and even more preferably 25% by weight or less, based on the total weight of composition A.

[0024] To obtain the above effects, the total concentration of the alkalizing agent, preferably one or more alkanolamines and / or their salts, and / or ammonia and / or its salts, is preferably 0.5 to 30% by weight, preferably 0.5 to 25% by weight, more preferably 0.75 to 25% by weight, and even more preferably 1 to 25% by weight, based on the total weight of composition A.

[0025] Compounds of group b) Composition A of the present invention comprises one or more direct dyes as compounds of group b).

[0026] In principle, all direct dyes are suitable for the purposes of this invention. In particular, anionic, cationic, or neutral direct dyes are preferred.

[0027] Preferably, one or more direct dyes of group b) are Acid Black 1, Acid Blue 1, Acid Blue 3, Food Blue 5, Acid Blue 7, Acid Blue 9, Acid Blue 74, Acid Orange 3, Acid Orange 6, Acid Orange 7, Acid Orange 10, Acid Red 1, Acid Red 14, Acid Red 18, Acid Red 27, Acid Red 50, Acid Red 52, Acid Red 73, Acid Red 87, Acid Red 88, Acid Red 92, Acid Red 155, Acid Red 180, Acid Violet 9, Acid Violet 43, Acid Violet 49, Acid Yellow 1, Acid Yellow 23, Acid Yellow 3, Food Yellow No.8, D&C Brown No.1, D&C Green No.5, D&C Green No.8, D&C Orange No.4, D&C Orange No.10, D&C Orange No.11, D&C Red No.21, D&C Red No.27, D&C Red No.33, D&C Violet 2, D&C Yellow No.7, D&C Yellow No.8, D&C Yellow No.10, FD&C Red 2, FD&C Red 40, FD&C Red No.4, FD&C Yellow No.6. It is selected from FD&C Blue 1, Food Black 1, Food Black 2, Disperse Black 9, Disperse Violet 1, Acid Red 52, DC Violet 2, DC Red 33, DC Orange 4, DC Red 27, DC Yellow 10, HC Blue 18, HC Red 18, HC Yellow 16, Basic Blue 6, Basic Blue 7, Basic Blue 9, Basic Blue 26, Basic Blue 41, Basic Blue 99, Basic Brown 4, Basic Brown 16, Basic Brown 17, Natural Brown 7, Basic Green 1, Basic Red 2, Basic Red 12, Basic Red 22, Basic Red 76, Basic Violet 1, Basic Violet 2, Basic Violet 3, Basic Violet 10, Basic Violet 14, Basic Yellow 57, Basic Red 51, Basic Yellow 87, HC Blue 17 and Basic Orange 31. From the viewpoint of coloring strength, the most preferred ones are Basic Red 51, Basic Yellow 87, Basic Orange 31, HC Blue 17 and Basic Blue 124, HC Blue No.2, HC Blue No.4, HC Blue No.5, HC Blue No.6, HC Blue No.7, HC Blue No.8, HC Blue No.9, HC Blue No.10, HC Blue No.11, HC Blue No.12, HC Blue No.13, HC Brown No.1, HC Brown No.2, HC Green No.1, HC Orange No.1, HC Orange No.2, HC Orange No.3, HC Orange No.5, HC Red BN, HC Red No.1, HC Red No.3, HC Red No.7, HC Red No.8, HC Red No.9, HC Red No.10, HC Red No.11, HC Red No.13, HC Red No. 54, HC Red No. 14, HC Violet BS, HC Violet No. 1, HC Violet No. 2, HC Yellow No. 2, HC Yellow No. 4, HC Yellow No. 5, HC Yellow No. 6, HC Yellow No. 7, HC Yellow No. 8, HC Yellow No. 9, HC Yellow No. 10, HC Yellow No. 11, HC Yellow No. 12, HC Yellow No. 13, HC Yellow No. 14, HC Yellow No. 15, and / or mixtures thereof and / or salts thereof.

[0028] From the viewpoint of dye strength and wash fastness, it is even more preferable that one or more direct dyes be selected from HC Blue 18, HC Red 18, HC Yellow 16, Disperse Black 9, Acid Yellow 1, and / or salts thereof and / or mixtures thereof.

[0029] The most preferred direct dyes as compounds in group b) are HC Blue 18, HC Red 18, HC Yellow 16, and / or their salts and / or mixtures thereof.

[0030] From the viewpoint of color intensity, the total concentration of the compounds in group b) is preferably 0.001% by weight or more, more preferably 0.005% by weight or more, and even more preferably 0.01% by weight or more, relative to the total weight of composition A.

[0031] From the viewpoint of color intensity and economic reasons, the total concentration of the compounds in group b) is preferably 10% by weight or less, more preferably 5% by weight or less, even more preferably 3% by weight or less, even more preferably 2% by weight or less, and even more preferably 1.5% by weight or less, based on the total weight of composition A.

[0032] To obtain the above effects, the total concentration of the compounds in group b) is preferably 0.001 to 10% by weight, preferably 0.005 to 5% by weight, more preferably 0.01 to 3% by weight, even more preferably 0.01 to 2% by weight, and even more preferably 0.01 to 1.5% by weight, relative to the total weight of composition A.

[0033] Compounds of group c) Composition A of the present invention comprises one or more compounds from group c) selected from the following group:

[0034] [ka] [In the formula, R1, R2, and R3 are independently selected from H and CH3] and / or mixtures thereof. 2) One or more imidazolidine-2,4-diones and / or derivatives thereof, and / or mixtures thereof and / or salts thereof Includes.

[0035] The compounds in group c1) are xanthines and / or their derivatives.

[0036] Suitable xanthine and / or xanthine derivatives based on the structure of compound c1) are: - Xanthine, where R1=R2=R3=H - Theobromine where R1=R3=CH3 and R2=H, - Theophylline in which R2=R3=CH3 and R1=H - Caffeine where R1=R2=R3=CH3 That is the case.

[0037] A mixture of the above compounds is also preferred.

[0038] From an economic standpoint, at least one compound in group c1) is preferably caffeine and / or theobromine, and / or a mixture thereof, and preferably caffeine.

[0039] Therefore, the disclosure of the present invention also, a) One or more alkalizing agents, b) One or more direct dyes, c) One or more compounds selected from the following groups:

[0040] [ka] [In the formula, R1, R2, and R3 are independently selected from H and CH3] and / or mixtures thereof. The subject is a dyeing composition A for keratin fibers, preferably for human keratin fibers, and more preferably for human hair, which includes [the specified ingredient].

[0041] From the standpoint of commercial availability, one or more compounds in group c2) have the following general structure:

[0042] [ka] [In the formula, R7, R8 and R9 are independently H, OH, halogen, C1-C] 12 Selected from linear or branched alkyl or alkenyl groups, OX, COOH, phenyl, diphenyl, ureyl, and / or salts thereof and / or mixtures thereof, where X is C1-C 12 [It is a linear or branched alkyl group.] It is preferable that it be represented by

[0043] From the standpoint of commercial availability, one or more compounds in group c2) Hydantoin, dichlorodimethylhydantoin, bromochlorodimethylhydantoin, dibromodimethylhydantoin, ethotoin, phenytoin, mephenytoin, phosphenytoin, allantoin, and / or salts thereof and / or mixtures thereof are preferred.

[0044] From the viewpoint of commercial availability and staining strength, one or more compounds in group c2) are hydantoin or allantoin, and / or salts thereof and / or mixtures thereof, preferably hydantoin and / or salts thereof.

[0045] Therefore, the disclosure of the present invention also relates to a dyeing composition A for keratin fibers, preferably human keratin fibers, more preferably human hair, a) One or more alkalizing agents, b) One or more direct dyes, c) One or more compounds selected from the following groups: 2) One or more imidazolidine-2,4-diones and / or derivatives thereof, and / or mixtures thereof and / or salts thereof The subject is composition A, which contains [the specified substance].

[0046] From the viewpoint of stabilization performance, the total concentration of the compounds in group c) is preferably 0.001% by weight or more, more preferably 0.005% by weight or more, even more preferably 0.01% by weight or more, and still more preferably 0.025% by weight or more, relative to the total weight of composition A.

[0047] For economic reasons and from the viewpoint of stabilization performance, the total concentration of the compounds in group c) is preferably 0.5% by weight or less, more preferably 0.25% by weight or less, even more preferably 0.2% by weight or less, and still more preferably 0.15% by weight or less, relative to the total weight of composition A.

[0048] To obtain the above effects, from the viewpoint of stabilization and staining intensity, the total concentration of the compounds in group c) is preferably 0.001 to 0.5% by weight, preferably 0.005 to 0.25% by weight, more preferably 0.01 to 0.2% by weight, and even more preferably 0.025 to 0.15% by weight, relative to the total weight of composition A.

[0049] From the viewpoint of dyeing performance, in composition A, the weight ratio of the compound in group b) to the compound in group c) is preferably 2 or more, more preferably 20 or more, even more preferably 37.5 or more, and even more preferably 100 or more.

[0050] From the viewpoint of dyeing performance, in composition A, the weight ratio of the compound of group b) to the compound of group c) is preferably 1,000 or less, more preferably 600 or less, even more preferably 400 or less, and even more preferably 150 or less.

[0051] To achieve the above effects, in composition A, the weight ratio of the compound from group b) to the compound from group c) is preferably 2 to 1,000, more preferably 20 to 600, even more preferably 37.5 to 400, and even more preferably 100 to 150.

[0052] Shape of composition A The first composition A of the present invention may be available in various cosmetic forms, such as aqueous compositions or powder compositions.

[0053] powder composition In one aspect of the present invention, composition A may be a powder composition.

[0054] The term "powder" refers to a composition that is solid at 25°C and atmospheric pressure. This term applies to freely flowing powders and compressed powders, such as tablets. Powder compositions may also contain water, as long as the properties of the solid state at 25°C remain unchanged. Depending on the type of powder, a water content of 10% by weight or less is permissible relative to the total weight of composition A. This does not exclude the presence of residual moisture from the air or from crystal water bound to the components. From the viewpoint of stability, composition A is preferably an anhydrous powder composition.

[0055] From the viewpoint of composition stability and ease of use, composition A preferably contains one or more powdered excipients.

[0056] The term "excipient" refers to a compound that may function as a filler and as a dispersant for other compounds in composition A, does not react with dyes and alkalizing agents, and therefore gives the powder a high degree of storage stability over long periods.

[0057] Composition A of the present invention may contain organic and / or inorganic powdered excipients in which an alkalizing agent and a direct dye are dispersed.

[0058] Suitable organic and / or inorganic powdered excipients include, for example, diatomaceous earth, kaolin, bentonite, starch, especially corn, tapioca, rice, wheat and potato, nylon powder, montmorillonite, gypsum, sawdust and perlite.

[0059] From the viewpoint of achieving good dispersibility of the direct dye in the powder and rapid dissolution of the powder, the total concentration of the organic and / or inorganic powdered excipients is preferably 50% by weight or more, more preferably 55% by weight or more, even more preferably 60% by weight or more, even more preferably 65% ​​by weight or more, even more preferably 70% by weight or more, and even more preferably 75% by weight or more, based on the total weight of composition A.

[0060] From the viewpoint of achieving good dispersibility of direct dyes in powder and freedom of formulation, the total concentration of organic and / or inorganic powdered excipients is preferably 98% by weight or less, more preferably 95% by weight or less, and even more preferably 90% by weight or less, based on the total weight of composition A.

[0061] To obtain the above effects, the total concentration of the organic and / or inorganic powdered excipients is preferably 50 to 98% by weight, more preferably 55 to 95% by weight, even more preferably 60 to 90% by weight, still more preferably 65 to 90% by weight, still more preferably 70 to 90% by weight, and even more preferably 75 to 90% by weight, based on the total weight of composition A.

[0062] Liquid composition containing less than 1% by weight of water In another aspect of the present invention, composition A is a liquid composition at 25°C and atmospheric pressure, comprising, as a compound, one or more organic solvents and less than 1% by weight of water relative to the total weight of composition A. From the viewpoint of dye stability, the composition is preferably anhydrous.

[0063] The term "liquid" refers to the physical state at 25°C and atmospheric pressure; that is, the dyeing composition is liquid at room temperature.

[0064] The term "anhydrous" refers to a composition that does not contain added water. This does not exclude the presence of residual water from the air or from crystal water bound to the components.

[0065] In this embodiment of the present invention, composition A may contain one or more organic solvents.

[0066] Organic solvents can be selected to dissolve alkalizing agents and dyes. Preferred solvents are monohydric, dihydric, and trihydric alcohols, and / or mixtures thereof.

[0067] From the standpoint of cosmetic safety and solubility, preferred monohydric, dihydric, and trihydric alcohols are ethanol, n-propanol, isopropanol, propylene glycol, ethylene glycol, benzyl alcohol, phenoxyethanol, and glycerol, and / or mixtures thereof.

[0068] From the viewpoint of solution stability, the total concentration of the organic solvent is more preferably 75% by weight or more, more preferably 80% by weight or more, and even more preferably 85% by weight or more, relative to the total weight of composition A.

[0069] From the viewpoint of staining strength, the total concentration of the organic solvent is preferably 98% by weight or less, more preferably 95% by weight or less, and even more preferably 92% by weight or less, relative to the total weight of composition A.

[0070] To obtain the above 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, relative to the total weight of composition A.

[0071] aqueous composition In one aspect of the present invention, composition A is an aqueous composition.

[0072] The term "aqueous" refers to a composition that is mostly water, that is, composition A contains water in an amount of preferably 50% by weight or more, more preferably 60% by weight or more, still more preferably 70% by weight or more, and still more preferably 80% by weight or more, based on the total weight of composition A, in order to achieve a composition that is acceptable as a cosmetic.

[0073] From the viewpoint of dyeing strength, it is even more preferable that composition A contains water in an amount of 98% by weight or less, more preferably 95% by weight or less, and even more preferably 92% by weight or less, relative to the total weight of composition A.

[0074] To achieve the above effects, the total concentration of water in composition A is preferably 50 to 98% by weight, more preferably 60 to 95% by weight, even more preferably 70 to 92% by weight, and still more preferably 80 to 92% by weight, based on the total weight of composition A.

[0075] From the viewpoint of dyeing performance, the pH of composition A is preferably 7 or higher, more preferably 7.5 or higher, even more preferably 8 or higher, and still more preferably 9 or higher.

[0076] From the viewpoint of hair damage and dyeing performance, the pH of composition A is preferably 12 or less, more preferably 11 or less, and even more preferably 10.5 or less.

[0077] In order to obtain the above effects, the pH of Composition A 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.

[0078] As described for the embodiment having less than 1% by weight of water, the aqueous or powder Composition A more preferably contains one or more organic solvents.

[0079] From the viewpoint of enhancing the coloring strength, preferred organic solvents in such cases are ethanol, benzyl alcohol and / or phenoxyethanol, and / or mixtures thereof.

[0080] From the viewpoint of enhancing the coloring strength, the preferred concentration of the organic solvent is 1 to 15% by weight, preferably 2 to 10% by weight, more preferably 2 to 8% by weight, based on the total weight of Composition A.

[0081] d) Lipophilic compounds as compounds Composition A of the present invention contains one or more lipophilic compounds as the compound of group d).

[0082] From the viewpoint of cosmetic compatibility, preferably, the compound of group d) is C 12 ~C 22 aliphatic alcohol, ester of C3-C 22 alcohol and C 12 ~C 22 fatty acid, fatty acid, vegetable oil and / or silicone, and / or hydrocarbon-based product, and / or mixtures thereof. 22 selected from

[0083] Suitable C 12 ~C 22 aliphatic alcohols are myristyl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol and cetearyl alcohol.

[0084] C3-C 22 alcohol and C 12 ~C22 Suitable esters with fatty acids are isopropyl myristate, isopropyl palmitate, and myristyl myristate.

[0085] Suitable C8~C 22 The fatty acids are oleic acid, linoleic acid, and palmitic acid.

[0086] Suitable vegetable oils include olive oil, almond oil, sunflower oil, and argan oil.

[0087] Preferred silicones are non-aminational and / or aminational silicones. The latter is commonly known as amodimethicone.

[0088] From the viewpoint of forming a stable composition and ease of use for the user, the total concentration of the compounds in group d) is preferably 1% by weight or more, more preferably 2% by weight or more, and even more preferably 3% by weight or more, relative to the total weight of composition A.

[0089] From the viewpoint of forming a stable composition, the total concentration of the compounds in group 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 A.

[0090] To obtain the above effects, the total concentration of the compounds in group d) is 1 to 20% by weight, preferably 2 to 15% by weight, and more preferably 3 to 12% by weight, relative to the total weight of composition A.

[0091] e) Surfactants as compounds From the viewpoint of stabilizing the composition and improving its wetting and mixing properties, composition A of the present invention may further contain one or more surfactants as compounds of group e), preferably selected from nonionic surfactants, anionic surfactants, cationic surfactants and / or amphoteric / zwitterionic surfactants and / or salts thereof and / or mixtures thereof, and more preferably further containing one or more surfactants selected from anionic surfactants and / or salts thereof.

[0092] Preferably, the anionic surfactant can be selected from ethoxylated or non-ethoxylated alkyl ether sulfate surfactants, alkyl sulfates, ethoxylated and / or non-ethoxylated alkyl carbonates, ethoxylated or non-ethoxylated amino acid surfactants, and / or mixtures thereof and / or salts thereof.

[0093] A preferred example is C 10 ~C 22 The surfactant is an alkyl sulfate, or preferably an ethoxylated alkyl ether sulfate surfactant, having an alkyl chain length and a degree of ethoxylation of 1 to 50, or a mixture thereof and / or a salt thereof.

[0094] Suitable nonionic surfactants can be selected from alkyl polyglycosides, ethoxylated triglycerides, ethoxylated aliphatic alcohols, ethoxylated fatty acid esters, and / or mixtures thereof.

[0095] Suitable cationic surfactants are C 12 ~C 22 Quaternary ammonium surfactant having a carbon chain length within the range of a tertiary amine group and C 12 ~C 22 A surfactant having at least one alkyl chain having a carbon chain length within the range, such as alkylamide alkylamine surfactants and / or salts thereof. Preferred examples are cetrimonium chloride and behentrimonium chloride.

[0096] Preferred amphoteric / zwitterionic surfactants are of the betaine type. Preferred compounds may be selected from alkylbetaines and / or alkylamide betaines. A preferred compound selected from alkylbetaines is lauryl betaine. A preferred compound selected from alkylamide betaines is cocamidopropyl betaine. This disclosure also relates to salts of such compounds.

[0097] From the viewpoint of enhancing the wettability of keratin fibers, physical stability, and miscibility with other compositions, a suitable concentration range for the surfactant is 0.1 to 10% by weight relative to the total weight of composition A.

[0098] Thickening polymer From the viewpoint of cosmetic safety, composition A of the present invention is more preferably composed of one or more thickening polymers.

[0099] Composition A of the present invention may contain one or more thickening polymers selected from nonionic thickening polymers and / or anionic thickening polymers, and / or mixtures thereof.

[0100] Preferably, the thickening polymer is selected from polymers that result in an aqueous solution and / or aqueous dispersion with a pH of 1 to 6 and a viscosity of at least 1,000 mPa·s, determined by measuring the polymer concentration at 1% by weight in water at 25°C, calculating it relative to the total weight of the composition, and determining it by cone-plate viscometer, for example, using a Brookfield viscometer with a suitable spindle at 10 rpm for 1 minute at 25°C.

[0101] Suitable nonionic thickening polymers are cellulose-based polymers. Suitable examples of cellulose-based polymers include methylcellulose, hydroxymethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, hydroxyethyl-methylcellulose, and alkylated hydroxycellulose, such as (C2-C8)-alkylcellulose or cetylhydroxyethylcellulose.

[0102] Suitable anionic thickening polymers are selected from natural anionic polymers and / or synthetic anionic polymers.

[0103] Preferably, the natural anionic polymer can be selected from xanthan gum, dehydroxanthan gum, hydroxypropylxanthan gum, carboxymethylcellulose, and starch-based polymers, such as plant starch and / or synthetically modified derivatives thereof, such as hydroxypropyl starch phosphate. Equally preferred are alginic acid, sodium alginate, ammonium alginate, calcium alginate, gum arabic, and guar gum.

[0104] Suitable synthetic anionic polymers are associative thickening polymers, such as acrylates / steareth-30 methacrylate copolymers.

[0105] From the viewpoint of biodegradability and low environmental impact, preferred thickening polymers for the compositions of the present invention are natural anionic polymers, more preferably xanthan gum and / or dehydroxanthan gum.

[0106] From the viewpoint of providing composition A with sufficient viscosity, the total concentration of the thickening polymer of the present invention is preferably 0.1% by weight or more, more preferably 0.25% by weight or more, and more preferably 0.5% by weight or more, based on the total weight of the composition.

[0107] From the viewpoint of imparting sufficient viscosity to the composition and the cost of the product, preferably the total concentration of the thickening polymer 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 composition A.

[0108] To obtain the above effects, the total concentration of the thickening polymer in composition A of the present invention is preferably 0.1% to 15% by weight, preferably 0.25% to 12% by weight, and more preferably 0.5% to 10% by weight, based on the total weight of composition A.

[0109] From the viewpoint of cosmetic safety, compositions A and / or B, when in liquid form, preferably have a viscosity of 1,000 mPas to 25,000 mPas, more preferably 2,000 mPas to 20,000 mPas, and more preferably 2,500 mPas to 17,500 mPas, as determined by cone-plate viscometery under 25°C and atmospheric pressure conditions. A suitable viscometer is a Brookfield viscometer with spindle #4.

[0110] Optionally, composition A as defined above has a pH of 7 to 12, preferably 8 to 11.5, more preferably 9 to 11, and contains one or more oxidizing agents, preferably hydrogen peroxide.

[0111] From the viewpoint of dyeing performance, the concentration of hydrogen peroxide in composition A is more 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 A.

[0112] From the viewpoint of product performance and user safety, the concentration of hydrogen peroxide in composition A is more 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 A.

[0113] To obtain the above effects, the concentration of hydrogen peroxide in composition A 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 A.

[0114] Parts kit The present invention also, - Composition A as defined above and - Composition B having a pH of 1 to 6 and optionally containing one or more oxidizing agents. The present invention relates to a kit of parts for dyeing keratin fibers, preferably human keratin fibers, more preferably human hair, including the above.

[0115] From the viewpoint of user convenience, composition B is preferably a liquid composition. From the viewpoint of stability, composition B preferably has a pH of 1.5 to 5, and more preferably 2 to 4.5.

[0116] From the viewpoint of cosmetic safety and user-friendliness, composition B is preferably an emulsion, a thickening gel, or a combination thereof. Composition B may also contain a lipophilic compound of group d) and / or a surfactant of group e), and / or one or more thickening polymers as defined above.

[0117] Composition B may further contain one or more oxidizing agents. A preferred oxidizing agent is hydrogen peroxide.

[0118] A suitable concentration range for hydrogen peroxide in composition B is 0.1 to 20% by weight, more preferably 0.25 to 15% by weight, and even more preferably 1 to 12% by weight, relative to the total weight of composition B.

[0119] Composition B of the present invention may contain one or more lipophilic compounds as defined above for composition A, as compounds of group d).

[0120] From the viewpoint of forming a stable composition and ease of use for the user, the total concentration of the compounds in group d) is preferably 1% by weight or more, more preferably 2% by weight or more, and even more preferably 3% by weight or more, based on the total weight of composition B.

[0121] From the viewpoint of forming a stable composition, the total concentration of the compounds in group 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 B.

[0122] To obtain the above effects, the total concentration of the compounds in group d) is preferably 1 to 20% by weight, more preferably 2 to 15% by weight, and more preferably 3 to 12% by weight, relative to the total weight of composition B.

[0123] Composition B of the present invention may further contain one or more surfactants as defined above for composition A, as compounds of group e).

[0124] From the viewpoint of enhancing the wettability of keratin fibers, physical stability, and miscibility with other compositions, a suitable concentration range for the surfactant is 0.1 to 10% by weight relative to the total weight of composition B.

[0125] From the viewpoint of cosmetic safety, composition B of the present invention is more preferably to contain one or more thickening polymers as defined for composition A above.

[0126] From the viewpoint of imparting sufficient viscosity to composition B, the total concentration of the thickening polymer of the present invention is preferably 0.1% by weight or more, more preferably 0.25% by weight or more, and more preferably 0.5% by weight or more, based on the total weight of composition B.

[0127] From the viewpoint of providing sufficient viscosity to the composition and the cost of the product, the total concentration of the thickening polymer of the present invention is preferably 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 composition B.

[0128] To obtain the above effects, the total concentration of the thickening polymer in composition B of the present invention is preferably 0.1 to 15% by weight, more preferably 0.25 to 12% by weight, and more preferably 0.5 to 10% by weight, based on the total weight of composition B.

[0129] From the standpoint of cosmetic safety, B preferably has a viscosity of 1,000 to 25,000 mPas, more preferably 2,000 to 20,000 mPas, and more preferably 2,500 to 17,500 mPas, as determined by the cone-plate viscometer under 25°C and atmospheric pressure conditions. A suitable viscometer is a Brookfield viscometer having spindle #4.

[0130] Optionally, the parts kit is, - A decolorizing powder composition C comprising one or more persodiums and / or peroxy salts, and one or more alkalizing agents. - A water-based brightening composition D containing one or more alkalizing agents and having a pH of 7 to 12. It further comprises one or more compositions selected from the following.

[0131] The present invention also, - A first composition comprising one or more compounds from group b) as defined above, - A second composition comprising one or more compounds from group c) as defined above. A kit of parts for dyeing keratin fibers, preferably human keratin fibers, more preferably human hair, including, The first and / or second, and / or any third composition, comprises one or more compounds of group a) as defined above. This applies to parts kits.

[0132] The components of the kit are kept separate until immediately before use in keratin fibers. Then, the components are mixed together to prepare composition A as defined above.

[0133] Decolorizing powder composition C Decolorizing powder composition C is more preferably comprising one or more perate and / or peroxide salts as decolorizing compounds, and one or more alkalizing agents.

[0134] Decolorizing powder composition C contains one or more perate and / or peroxide salts. Preferred perate and / or peroxy salts are sodium persulfate, potassium persulfate, ammonium persulfate, alkaline earth peroxides such as magnesium peroxide, melamine peroxide or urea peroxide, or phthalimidoperoxyhexanoic acid. From the viewpoint of decolorizing power, preferred perate are sodium persulfate, potassium persulfate and ammonium persulfate.

[0135] From the viewpoint of decolorizing power and cosmetic safety, the total concentration of perate and / or peroxide salts in decolorizing powder composition C is preferably 10 to 80% by weight, preferably 15 to 70% by weight, more preferably 20 to 60% by weight, and even more preferably 25 to 60% by weight, based on the total weight of decolorizing powder composition C.

[0136] Decolorizing powder composition C further comprises one or more alkalizing agents. Preferred alkalizing agents are metasilicates and disilicates, particularly sodium metasilicate and / or sodium disilicate. From the viewpoint of alkalinity, the concentration of metasilicates and / or disilicates, and / or their salts, in decolorizing powder composition C is preferably 1 to 20% by weight, and more preferably 5 to 15% by weight, based on the total weight of decolorizing powder composition C.

[0137] Other suitable alkalizing agents include carbonates and bicarbonates, and alkali salts (e.g., sodium salts, potassium salts, and ammonium salts). From the viewpoint of buffering ability, preferred salts are salts of bicarbonates, with ammonium bicarbonate being particularly preferred. From the viewpoint of buffering ability and low hair damage, a preferred concentration of carbonate in the decolorizing powder composition is 0.25 to 10% by weight, preferably 0.5 to 7.5% by weight, more preferably 0.75 to 5% by weight, and still more preferably 1 to 4% by weight, based on the total weight of the decolorizing powder composition C.

[0138] Aqueous lightening composition D From the viewpoint of user convenience, as disclosed for composition A, preferably, aqueous brightening composition D is an emulsion containing one or more lipophilic compounds from group d).

[0139] From the viewpoint of brightening performance, aqueous brightening composition D preferably has a pH of 8 to 11, more preferably 8.5 to 10.5. Suitable alkalizing agents are disclosed above for composition A.

[0140] Dyeing method The present invention also relates to a method for dyeing keratin fibers, preferably human keratin fibers, more preferably human hair, i) A step of preparing composition A as defined in claims 1 to 12, optionally composition B as defined in claim 13, and / or optionally one or more further compositions, ii) Optionally, mix composition A and B, composition A and one further composition, or composition A and B and one or more further compositions to obtain a ready-to-use composition having a pH of 7 to 12. iii) Applying composition A or the composition prepared in step ii) to keratin fibers, iv) Allow composition A or the composition prepared immediately before use to stand for 1 to 60 minutes, and optionally heat the keratin fibers to a temperature range of 40 to 60°C. v) Rinse the keratin fibers and optionally shampoo the keratin fibers. This applies to methods that include [specific methods].

[0141] Next, the composition prepared for use is applied to the keratin fibers and left to stand for 1 to 60 minutes as defined in step iv). From the viewpoint of sufficient staining, the preferred time range for step iv) is 5 to 45 minutes, and the more preferred range is 10 to 35 minutes.

[0142] Optionally, heat may be applied to composition A or the composition prepared immediately before use while it is standing on the keratin fibers. A suitable temperature range is 30 to 50°C.

[0143] From the viewpoint of decolorizing power, it is preferable that the one or more further compositions in steps ii) and iii) are the decolorizing powder composition C and / or aqueous lightening composition D defined above.

[0144] The present invention also, <1> A dyeing composition A for keratin fibers, preferably human keratin fibers, more preferably human hair, wherein composition A is a) One or more alkalizing agents, b) One or more direct dyes, c) One or more compounds selected from the following groups:

[0145] [ka] [In the formula, R1, R2, and R3 are independently selected from H and CH3] and / or mixtures thereof. 2) One or more imidazolidine-2,4-diones and / or derivatives thereof, and / or mixtures thereof and / or salts thereof Includes, One or more direct dyes as the compound of group b) are Acid Black 1, Acid Blue 1, Acid Blue 3, Food Blue 5, Acid Blue 7, Acid Blue 9, Acid Blue 74, Acid Orange 3, Acid Orange 6, Acid Orange 7, Acid Orange 10, Acid Red 1, Acid Red 14, Acid Red 18, Acid Red 27, Acid Red 50, Acid Red 52, Acid Red 73, Acid Red 87, Acid Red 88, Acid Red 92, Acid Red 155, Acid Red 180, Acid Violet 9, Acid Violet 43, Acid Violet 49, Acid Yellow 1, Acid Yellow 23, Acid Yellow 3, Food Yellow No.8, D&C Brown No.1, D&C Green No.5, D&C Green No.8, D&C Orange No.4, D&C Orange No.10, D&C Orange No.11, D&C Red No.21, D&C Red No.27, D&C Red No.33, D&C Violet 2, D&C Yellow No.7, D&C Yellow No.8, D&C Yellow No.10, FD&C Red 2, FD&C Red 40, FD&C Red No.4, FD&C Yellow No.6. Composition A is targeted at those selected from FD&C Blue 1, Food Black 1, Food Black 2, Disperse Black 9, Disperse Violet 1, Acid Red 52, DC Violet 2, DC Red 33, DC Orange 4, DC Red 27, DC Yellow 10, HC Blue 18, HC Red 18, HC Yellow 16, Basic Blue 6, Basic Blue 7, Basic Blue 9, Basic Blue 26, Basic Blue 41, Basic Blue 99, Basic Brown 4, Basic Brown 16, Basic Brown 17, Natural Brown 7, Basic Green 1, Basic Red 2, Basic Red 12, Basic Red 22, Basic Red 76, Basic Violet 1, Basic Violet 2, Basic Violet 3, Basic Violet 10, Basic Violet 14, Basic Yellow 57, Basic Red 51, Basic Yellow 87, HC Blue 17 and Basic Orange 31. Most preferred are Basic Red 51, Basic Yellow 87, Basic Orange 31, HC Blue 17 and Basic Blue 124, HC Blue No.2, HC Blue No.4, HC Blue No.5, HC Blue No.6, HC Blue No.7, HC Blue No.8, HC Blue No.9, HC Blue No.10, HC Blue No.11, HC Blue No.12, HC Blue No.13, HC Brown No.1, HC Brown No.2, HC Green No.1, HC Orange No.1, HC Orange No.2, HC Orange No.3, HC Orange No.5, HC Red BN, HC Red No.1, HC Red No.3, HC Red No.7, HC Red No.8, HC Red No.9, HC Red No.10, HC Red No.11, HC Red No.13. HC Red No. 54, HC Red No. 14, HC Violet BS, HC Violet No. 1, HC Violet No. 2, HC Yellow No. 2, HC Yellow No. 4, HC Yellow No. 5, HC Yellow No. 6, HC Yellow No. 7, HC Yellow No. 8, HC Yellow No. 9, HC Yellow No. 10, HC Yellow No. 11, HC Yellow No. 12, HC Yellow No. 13, HC Yellow No. 14, HC Yellow No. 15, 2-amino-6-chloro-4-nitrophenol, and / or mixtures thereof and / or salts thereof. The total concentration of alkalizing agents as compounds of group a), preferably one or more alkanolamines and / or their salts, and / or ammonia and / or its salts, is 0.5 to 40% by weight relative to the total weight of composition A.

[0146] <2> One or more alkalizing agents as compounds of group a) are one or more organic alkalizing agents, and / or ammonia and / or salts thereof. <1> The composition described above.

[0147] <3> a) One or more compounds are one or more organic alkalizing agents and / or ammonia and / or salts thereof, preferably one or more alkanolamines and / or their / salts and / or ammonia and / or salts thereof, more preferably selected from monoethanolamine, diethanolamine, monoethanolmethylamine, monoethanoldimethylamine, diethanolmethylamine, monoethanolethylamine, monoethanoldiethylamine, diethanolethylamine, monoethanolpropylamine, monoethanoldipropylamine, diethanolpropylamine, monoethanolbutylamine, diethanolbutylamine, trimethylamine, triethylamine, 2-amino-2-methylpropanol, tris-(hydroxymethyl)-aminomethane and / or their / salts and / or mixtures thereof, most preferably selected from monoethanolamine, 2-amino-2-methylpropanol, tris-(hydroxymethyl)-aminomethane, ammonia and / or their / salts and / or mixtures thereof. <1> ~ <2> A composition as described in any of the following.

[0148] <4> a) The one or more alkalizing agents as compounds are one or more inorganic alkalizing agents, preferably selected from metasilicates, carbonates and / or bicarbonates, and / or alkali salts or alkaline earth salts thereof, and / or mixtures thereof, and preferably sodium metasilicate. <1> ~ <3> A composition as described in any of the following.

[0149] <5> a) The total concentration of the alkalizing agent as a compound, preferably one or more alkanolamines and / or their salts, and / or ammonia and / or its salts, is 0.5 to 30% by weight, preferably 0.5 to 25% by weight, more preferably 0.75 to 25% by weight, and still more preferably 1 to 25% by weight, relative to the total weight of composition A. <1> ~ <4> A composition as described in any of the following.

[0150] <6> One or more direct dyes as compounds of group b) are 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. <1> ~ <5> A composition as described in any of the following.

[0151] <7> One or more direct dyes as compounds of group b) are selected from HC Blue 18, HC Red 18, HC Yellow 16, and / or their salts and / or mixtures thereof. <1> ~ <6> A composition as described in any of the following.

[0152] <8> The total concentration of the compounds in group b) is 0.001 to 10% by weight, preferably 0.005 to 5% by weight, more preferably 0.01 to 3% by weight, even more preferably 0.01 to 2% by weight, and even more preferably 0.01 to 1.5% by weight, relative to the total weight of composition A. <1> ~ <7> A composition as described in any of the following.

[0153] <9> One or more compounds from group c1) - Xanthine, where R1=R2=R3=H - Theobromine where R1=R3=CH3 and R2=H, - Theophylline in which R2=R3=CH3 and R1=H - Caffeine, where R1=R2=R3=CH3, and / or mixtures thereof That is, <1> ~ <8> A composition as described in any of the following.

[0154] <10> One or more compounds of group c1) are caffeine and / or theobromine, and / or mixtures thereof, preferably caffeine. <1> ~ <9> A composition as described in any of the following.

[0155] <11> The total concentration of the compounds in group c1) is 0.001 to 0.5% by weight, preferably 0.005 to 0.25% by weight, more preferably 0.01 to 0.2% by weight, and even more preferably 0.025 to 0.15% by weight, relative to the total weight of composition A. <1> ~ <10> A composition as described in any of the following.

[0156] <12> One or more compounds of group c2) of composition B have the following general structure:

[0157] [ka] [In the formula, R7, R8 and R9 are independently H, OH, halogen, C1-C] 12 Selected from linear or branched alkyl or alkenyl groups, OX, COOH, phenyl, diphenyl, ureyl, and / or salts thereof and / or mixtures thereof, where X is C1-C 12 [It is a linear or branched alkyl group.] Represented by, <1> ~ <11> A composition as described in any of the following.

[0158] <13> One or more compounds of group c2) are hydantoin, dichlorodimethylhydantoin, bromochlorodimethylhydantoin, dibromodimethylhydantoin, ethotoin, phenytoin, mephenytoin, phosphenytoin, allantoin, and / or salts thereof and / or mixtures thereof. <1> ~ <8> or <12> A composition as described in any of the following.

[0159] <14> One or more compounds of group c2) are hydantoin or allantoin, and / or salts thereof and / or mixtures thereof, preferably hydantoin and / or salts thereof. <1> ~ <8> or <12> ~ <13> A composition as described in any of the following.

[0160] <15> The total concentration of the compounds in group c2) is 0.001 to 0.5% by weight, preferably 0.005 to 0.25% by weight, more preferably 0.01 to 0.2% by weight, and even more preferably 0.025 to 0.15% by weight, relative to the total weight of composition A. <1> ~ <8> or <12> ~ <14> A composition as described in any of the following.

[0161] <16> The total concentration of the compounds in group c) is 0.001 to 0.5% by weight, preferably 0.005 to 0.25% by weight, more preferably 0.01 to 0.2% by weight, and even more preferably 0.025 to 0.15% by weight, relative to the total weight of composition A. <1> ~ <15> A composition as described in any of the following.

[0162] <17> It is a solid composition, preferably a powder composition. <1> ~ <16> A composition as described in any of the following.

[0163] <18> Composition A contains 10% by weight or less of water relative to the total weight of composition A, and is preferably an anhydrous powder composition. <17> The composition described above.

[0164] <19> Composition A contains one or more powdered excipients. <17> ~ <18> A composition as described in any of the following.

[0165] <20> Composition A comprises one or more organic and / or inorganic powdered excipients. <19> The composition described above.

[0166] <21> The organic and / or inorganic powdered excipients are diatomaceous earth, kaolin, bentonite, starch, in particular corn, tapioca, rice, wheat and potato, nylon powder, montmorillonite, gypsum, sawdust or perlite. <20> The composition described above.

[0167] <22> The total concentration of the organic and / or inorganic powdered excipients is 50 to 98% by weight, more preferably 55 to 95% by weight, even more preferably 60 to 90% by weight, still more preferably 65 to 90% by weight, still more preferably 70 to 90% by weight, and even more preferably 75 to 90% by weight, based on the total weight of composition A. <17> ~ <21> A composition as described in any of the following.

[0168] <23> It is a liquid composition at 25°C and normal pressure, contains less than 1% by weight of water, and is preferably anhydrous. <1> ~ <16> A composition as described in any of the following.

[0169] <24> Composition A contains one or more organic solvents, <23> The composition described above.

[0170] <25> The organic solvent is a monohydric, dihydric, and trihydric alcohol, and / or a mixture thereof. <24> The composition described above.

[0171] <26> The organic solvent is ethanol, n-propanol, isopropanol, propylene glycol, ethylene glycol, benzyl alcohol, phenoxyethanol and glycerol, and / or mixtures thereof. <23> ~ <25> A composition as described in any of the following.

[0172] <27> The total concentration of the organic solvent is 75-98% by weight, more preferably 80-95% by weight, and even more preferably 85-92% by weight, relative to the total weight of composition A. <23> ~ <26> A composition as described in any of the following.

[0173] <28> Composition A is an aqueous composition having a pH of 7 to 12, preferably 8 to 11.5, and more preferably 9 to 11.5. <1> ~ <16> A composition as described in any of the following.

[0174] <29> Composition A contains 50% by weight or more, more preferably 60% by weight or more, even more preferably 70% by weight or more, and even more preferably 80% by weight or more of water, based on the total weight of composition A. <28> The composition described above.

[0175] <30> Organic solvents, preferably ethanol, benzyl alcohol and / or phenoxyethanol, and / or mixtures thereof, <28> ~ <29> A composition as described in any of the following.

[0176] <31> The total concentration of the organic solvent is 1 to 15% by weight, preferably 2 to 10% by weight, and more preferably 2 to 8% by weight, relative to the total weight of composition A. <30> The composition described above.

[0177] <32> Composition A contains one or more lipophilic compounds as compounds of group d), <1> ~ <31> A composition as described in any of the following.

[0178] <33> One or more compounds from group d) are C 12 ~C 22 Aliphatic alcohols, C3-C 22 Alcohol and C 12 ~C 22 Esters with fatty acids, C8~C 22 Selected from fatty acids, vegetable oils and / or silicones and / or hydrocarbon products, and / or mixtures thereof, <32> The composition described above.

[0179] <34> The total concentration of the compounds in group d) is 1 to 20% by weight, preferably 2 to 15% by weight, and more preferably 3 to 12% by weight, relative to the total weight of composition A. <32> ~ <33> A composition as described in any of the following.

[0180] <35> Composition A contains one or more surfactants as compounds of group e), <1> ~ <34> A composition as described in any of the following.

[0181] <36> One or more compounds from group e) are selected from nonionic surfactants, anionic surfactants, cationic surfactants and / or amphoteric / zwitterionic surfactants, and / or salts thereof and / or mixtures thereof, preferably selected from anionic surfactants and / or salts thereof. <35> The composition described above.

[0182] <37> The anionic surfactant is 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. <35> ~ <36> A composition as described in any of the following.

[0183] <38> The nonionic surfactant is selected from alkyl glycosides, alkyl polyglycosides, ethoxylated triglycerides, ethoxylated aliphatic alcohols, ethoxylated fatty acid esters and / or mixtures thereof. <35> ~ <37> A composition as described in any of the following.

[0184] <39> Cationic surfactants, C 12 ~C 22 A quaternary ammonium surfactant having a carbon chain length within the range of C, or a tertiary amine group and C 12 ~C 22 A surfactant having at least one alkyl chain having a carbon chain length within the range, preferably selected from alkylamide alkylamine surfactants and / or salts thereof. <35> ~ <38> A composition as described in any of the following.

[0185] <40> The amphoteric / zwitterionic surfactant is of the betaine type, preferably selected from alkylbetaine and / or alkylamide betaine. <35> ~ <39> A composition as described in any of the following.

[0186] <41> Composition A contains one or more surfactants at a total concentration of 0.1 to 10% by weight relative to the total weight of Composition A. <35> ~ <40> A composition as described in any of the following.

[0187] <42> Composition A contains one or more thickening polymers, <1> ~ <41> A composition as described in any of the following.

[0188] <43> One or more thickening polymers are selected from nonionic thickening polymers and / or anionic thickening polymers, and / or salts thereof and / or mixtures thereof. <42> The composition described above.

[0189] <44> The nonionic thickening polymer is a cellulosic polymer, preferably methylcellulose, hydroxymethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, hydroxyethyl-methylcellulose, and alkylated hydroxylcellulose, such as (C2-C8)-alkylcellulose or cetylhydroxyethylcellulose. <43> The composition described above.

[0190] <45> The anionic thickening polymer is selected from natural anionic polymers and / or synthetic anionic polymers. <43> ~ <44> A composition as described in any of the following.

[0191] <46> The natural anionic polymer may be selected from xanthan gum, dehydroxanthan gum, hydroxypropylxanthan gum, carboxymethylcellulose, and starch-based polymers, such as plant starch and / or synthetically modified derivatives thereof, such as hydroxypropyl starch phosphate, alginic acid, sodium alginate, ammonium alginate, calcium alginate, gum arabic, and guar gum. <45> The composition described above.

[0192] <47> The synthetic anionic polymer is an associative thickening polymer, such as acrylates / steareth-30 methacrylate copolymer. <42> ~ <46> A composition as described in any of the following.

[0193] <48> One or more thickening polymers in composition A are xanthan gum and / or dehydroxanthan gum. <42> ~ <47> A composition as described in any of the following.

[0194] <49> The total concentration of the thickening polymer in composition A is 0.1 to 15% by weight, preferably 0.25 to 12% by weight, and more preferably 0.5 to 10% by weight, relative to the total weight of each component of composition A. <42> ~ <48> A composition as described in any of the following.

[0195] <50> Composition A has a viscosity of 1,000 to 25,000 mPas, preferably 2,000 to 20,000 mPas, and more preferably 2,500 to 17,500 mPas, as determined by the cone-plate viscometer under 25°C and atmospheric pressure conditions. <1> ~ <16> and <28> ~ <49> A composition as described in any of the following.

[0196] <51> Composition A contains one or more oxidizing agents, preferably hydrogen peroxide. <1> ~ <16> and <28> ~ <50> A composition as described in any of the following.

[0197] <52> The concentration of hydrogen peroxide in composition A is 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 A. <51> The composition described above.

[0198] This disclosure also, <53> - <1> ~ <52> Composition A, defined as any of the following: - Composition B having a pH of 1 to 6 and optionally containing one or more oxidizing agents. The present invention relates to a kit of parts for dyeing keratin fibers, preferably human keratin fibers, more preferably human hair, including the above.

[0199] <54> Composition B has a pH of 1.5 to 5, more preferably 2 to 4.5. <53> A kit of the parts listed.

[0200] <55> Composition B is an emulsion, a thickening gel, or a combination thereof. <53> ~ <54> A kit of parts listed in any of the following.

[0201] <56> Composition B, as a compound of group d), with respect to composition A <33> ~ <34> Containing one or more lipophilic compounds as defined in any of the following: <53> ~ <55> A kit of parts listed in any of the following.

[0202] <57> Composition B, as a compound of group e), <35> ~ <41> Containing one or more surfactants as defined in any of the following: <53> ~ <56> A kit of parts listed in any of the following.

[0203] <58> Composition B, with respect to Composition A <42> ~ <49> Containing one or more thickening polymers as defined in any of the following: <53> ~ <57> A kit of parts listed in any of the following.

[0204] <59> The concentration of hydrogen peroxide in composition B is 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 B. <53> ~ <58> A kit of parts listed in any of the following.

[0205] <60> - A decolorizing powder composition C comprising one or more persodiums and / or peroxy salts, and one or more alkalizing agents. - A water-based brightening composition D containing one or more alkalizing agents and having a pH of 7 to 12. Further comprising one or more compositions selected from, <53> ~ <59> A kit of parts listed in any of the following.

[0206] <61> One or more perate and / or peroxide salts of decolorized powder composition C are sodium persulfate, potassium persulfate, ammonium persulfate, alkaline earth peroxides such as magnesium peroxide, melamine peroxide or urea peroxide, or phthalimidoperoxyhexanoic acid. <60> A kit of the parts listed.

[0207] <62> The total concentration of perate and / or peroxide salts in decolorized powder composition C is 10 to 80% by weight, preferably 15 to 70% by weight, more preferably 20 to 60% by weight, and even more preferably 25 to 60% by weight, based on the total weight of decolorized powder composition C. <60> ~ <61> A kit of parts listed in any of the following.

[0208] <63> One or more alkalizing agents in the decolorizing powder composition C are metasilicates and disilicates, particularly sodium metasilicate and / or sodium disilicate, and preferably the total concentration is 1 to 20% by weight, more preferably 5 to 15% by weight, relative to the total weight of the decolorizing powder composition C. <60> ~ <62> A kit of parts listed in any of the following.

[0209] <64> Water-based color-brightening composition D <33> ~ <34> Composition A in any of the above is also disclosed, which is an emulsion containing one or more lipophilic compounds of d), <60> A kit of the parts listed.

[0210] <65> The aqueous color-brightening composition D has a pH of 8 to 11, more preferably 8.5 to 10.5. <60> or <64> A kit of parts listed in any of the following.

[0211] <66> - <1> ~ <52> A first composition comprising one or more compounds of group b) as defined in any of the following: - <1> ~ <52> A second composition comprising one or more compounds of group c) as defined in any of the above. A kit of parts for dyeing keratin fibers, preferably human keratin fibers, more preferably human hair, including, The first and / or second, and / or any third composition, <1> ~ <52> A compound comprising one or more compounds of group a) as defined in any of the following: A kit of parts.

[0212] <67> The first, second, and any third compositions for preparing composition A are kept separately until immediately before use in keratin fibers. <66> A kit of the parts listed.

[0213] This disclosure also, <68> A method for dyeing keratin fibers, preferably human keratin fibers, more preferably human hair, i) <1> ~ <55> Composition A as defined in any of the following, optionally, <53> ~ <59> The step of preparing composition B as defined in any of the following, and / or optionally one or more further compositions, ii) Optionally, mix composition A and B, or composition A and one further composition, or composition A and B and one or more further compositions to obtain a ready-to-use composition having a pH of 7 to 12. iii) Applying composition A or the composition prepared in step ii) to keratin fibers, iv) Allow composition A or the composition prepared immediately before use to stand for 1 to 60 minutes, and optionally heat the keratin fibers to a temperature range of 40 to 60°C. v) Rinse the keratin fibers and optionally shampoo the keratin fibers. This applies to methods that include [specific methods].

[0214] <69> The composition prepared in steps ii) and iii) has a pH of 7 to 12, preferably 7.5 to 11, more preferably 8.0 to 10.5. <68> Methods used.

[0215] <70> The composition prepared in step iv) is left to stand on keratin fibers for 1 to 60 minutes, preferably 5 to 45 minutes, more preferably 10 to 35 minutes. <68> ~ <69> One of the methods described above.

[0216] <71> During the application time of the mixture prepared in step iv), heat may be applied to the keratin fibers, preferably within a temperature range of 30 to 50°C. <68> ~ <70> One of the methods described above.

[0217] <72> Any composition in steps ii) and iii) <67> ~ <67> A decolorizing powder composition C and / or an aqueous lightening composition D, defined as either of the following: <68> ~ <71> One of the methods described above.

[0218] This disclosure also, <73> <1> ~ <52> A method for producing composition A, defined as any of the following: - <1> ~ <52> A step of preparing a first composition comprising one or more compounds of group b) as defined in any of the following: - <1> ~ <52> The step is to prepare a second composition comprising one or more compounds of group c) as defined in any of the above, However, if the first and / or second, and / or any third composition is <1> ~ <52> A step comprising one or more compounds of group a) defined as any of the following: - Step of mixing the first, second, and optionally third compositions. This applies to methods that include [specific methods].

[0219] The following examples illustrate the present invention and are not limiting thereto. Example 1

[0220] The compounds from groups a), b), and c) were dissolved in water while constantly stirring to prepare the following composition A.

[0221] [Table 1]

[0222] The following composition B was prepared. weight% Cetearyl Alcohol 4.0 Sodium Lauryl Sulfate 0.8 Phosphoric acid appropriate amount until pH 2.5 Hydrogen Peroxide 6.0 Water up to 100.0

[0223] The following dyeing results were obtained.

[0224]

Table 2

[0225] As explained by the above results, Composition 1 of the present invention exhibits higher post-washing dyeing intensity compared to Comparative Example Composition 1, which corresponds to higher washing fastness. Example 2

[0226] The following Compositions A and B were prepared.

[0227]

Table 3

[0228] The same Composition B as in Example 1 was used. The following dyeing results were obtained.

[0229]

Table 4

[0230] method Hair Dyeing The composition of the present invention (inv.) and the comparative example composition (comp.) were mixed with Composition B of Example 1 at a weight ratio of 1:1 to prepare a composition for use having a pH of 9.5.

[0231] Human hair strands (21 cm, 2 g per strand) were coated with the preparation composition described above and left to stand at room temperature for 30 minutes. The hair strands were then rinsed with lukewarm water, shampooed with a commercially available shampoo under the brand name Goldwell Deep Cleansing Shampoo, and blow-dried. The color was measured as outlined below.

[0232] The wash fastness of dyed hair strands was determined by placing them in a water bath containing 3.5% by weight of sodium laureth sulfate and shaking them at 40°C for 30 minutes. After this treatment, the hair strands were blow-dried and the remaining color was measured (ΔE).

[0233] Color measurement data is obtained using the CIE color measurement system (L * a * , b * The color difference was obtained using a colorimeter and the color difference (ΔE) was calculated using the following formula.

[0234]

number

Claims

1. a) One or more alkalizing agents, b) One or more direct dyes, and c) c1 below): 【Chemistry 1】 [In the formula, R １ , R ２ and R ３ These are H and CH independently. ３ Selected from the following. and / or mixtures thereof Includes, b) The direct dyes are Acid Black 1、Acid Blue 1、Acid Blue 3、Food Blue 5、Acid Blue 7、Acid Blue 9、Acid Blue 74、Acid Orange 3、Acid Orange 6、Acid Orange 7、Acid Orange 10、Acid Red 1、Acid Red 14、Acid Red 18、Acid Red 27、Acid Red 50、Acid Red 52、Acid Red 73、Acid Red 87、Acid Red 88、Acid Red 92、Acid Red 155、Acid Red 180、Acid Violet 9、Acid Violet 43、Acid Violet 49、Acid Yellow 1、Acid Yellow 23、Acid Yellow 3、Food Yellow No.8、D&C Brown No.1、D&C Green No.5、D&C Green No.8、D&C Orange No.4、D&C Orange No.10、D&C Orange No.11、D&C Red No.21、D&C Red No.27、D&C Red No.33、D&C Violet 2、D&C Yellow No.7、D&C Yellow No.8、D&C Yellow No.10、FD&C Red 2、FD&C Red 40、FD&C Red No.4、FD&C Yellow No.6、FD&C Blue 1、Food Black 1、Food Black 2、Disperse Black 9、Disperse Violet 1、Acid Red 52、DC Violet 2、DC Red 33、DC Orange 4、DC Red 27、DC Yellow 10、HC Blue 18、HC Red 18、HC Yellow 16、Basic Blue 6、Basic Blue 7、Basic Blue 9、Basic Blue 26、Basic Blue 41、Basic Blue 99、Basic Brown 4、Basic Brown 16、Basic Brown 17、Natural Brown 7、Basic Green 1、Basic Red 2、Basic RedSelected from 12, Basic Red, 22, Basic Red, 76, Basic Violet, 1, Basic Violet, 2, Basic Violet, 3, Basic Violet, 10, Basic Violet, 14, Basic Yellow, 57, Basic Red, 51, Basic Yellow, 87, HC Blue, 17, and Basic Orange, A dyeing composition A for keratin fibers, wherein the total concentration of a) is 0.5 to 40% by weight relative to the total weight of composition A, the total concentration of c) is 0.001 to 0.5% by weight relative to the total weight of composition A, and the weight ratio of b) to c) is 20 to 150.

2. The direct dyes b) are Basic Red 51, Basic Yellow 87, Basic Orange 31, HC Blue 17, Basic Blue 124, HC Blue No. 4.HC Blue No. 5, HC Blue No. 6.HC Blue No. 7.HC Blue No. 8, HC Blue No. 9, HC Blue No. 10, HC Blue No. 11, HC Blue No. 12, HC Blue No. 13.HC Brown No. 1.HC Brown No. 2.HC Green No. 1.HC Orange No. 1.HC Orange No. 2.HC Orange No. 3.HC Orange No. 5, HC Red BN, HC Red No. 1.HC Red No. 7.HC Red No. 8.HC Red No. 9, HC Red No. 10, HC Red No. 11, HC Red No. 54, HC Red No. 14, HC Violet BS, HC Violet No. 2, HC Yellow No. 4.HC Yellow No. The dyeing composition A according to claim 1, wherein the composition A is 5, HC Yellow No. 6, HC Yellow No. 7, HC Yellow No. 8, HC Yellow No. 9, HC Yellow No. 10, HC Yellow No. 11, HC Yellow No. 12, HC Yellow No. 13, HC Yellow No. 14, HC Yellow No. 15, 2-amino-6-chloro-4-nitrophenol, salts thereof, or mixtures thereof.

3. a) is one or more alkanolamines or salts thereof, or ammonia or salts thereof, according to claim 1, the dyeing composition A.

4. a) is selected from monoethanolamine, diethanolamine, monoethanolmethylamine, monoethanoldimethylamine, diethanolmethylamine, monoethanolethylamine, monoethanoldiethylamine, diethanolethylamine, monoethanolpropylamine, monoethanoldipropylamine, diethanolpropylamine, monoethanolbutylamine, diethanolbutylamine, trimethylamine, triethylamine, 2-amino-2-methylpropanol, tris-(hydroxymethyl)-aminomethane, ammonia, salts thereof, or mixtures thereof, the dyeing composition A according to claim 1.

5. a) is selected from monoethanolamine, 2-amino-2-methylpropanol, tris-(hydroxymethyl)-aminomethane, ammonia, salts thereof, or mixtures thereof, according to claim 1.

6. The dyeing composition A according to claim 1, wherein the total concentration of (a) is 0.5 to 30% by weight.

7. The dyeing composition A according to claim 1, wherein the total concentration of (a) is 1 to 25% by weight.

8. b) The dyeing composition A according to claim 1, wherein is selected from HC Blue 18, HC Red 18, HC Yellow 16, Disperse Black 9, Acid Yellow 1, 2-amino-6-chloro-4-nitrophenol, and salts thereof.

9. The dyeing composition A according to claim 1, wherein the total concentration of b) in composition A is 0.001 to 10% by weight.

10. The dyeing composition A according to claim 1, wherein the total concentration of b) in composition A is 0.01 to 1.5% by weight.

11. The dyeing composition A according to claim 1, wherein c1) is caffeine, theobromine, or a mixture thereof.

12. The dyeing composition A according to claim 1, wherein c1) is caffeine.

13. The dyeing composition A according to claim 1, wherein the total concentration of c) in composition A is 0.025 to 0.15% by weight.

14. The dyeing composition A according to claim 1, which is a solid composition.

15. The dyeing composition A according to claim 1, which is a powder composition.

16. The dyeing composition A according to claim 1, which is a liquid composition at 25°C and atmospheric pressure, and contains less than 1% by weight of water relative to the total weight of composition A.

17. The dyeing composition A according to claim 1, which is an aqueous composition having a pH of 7 to 12.

18. The dyeing composition A according to claim 1, which is an aqueous composition having a pH of 9 to 11.

5.

19. The dyeing composition A according to claim 1, comprising 50% by weight or more of water relative to the total weight of composition A.

20. - A dyeing composition A according to any one of claims 1 to 19, - Composition B having a pH of 1 to 6 and optionally containing one or more oxidizing agents A kit for staining keratin fibers, including [specific components / materials].

21. - A decolorizing powder composition C comprising one or more perate and / or peroxide salts, and one or more alkalizing agents, or - The kit according to claim 20, further comprising one or more compositions selected from aqueous lightening compositions D, which contain one or more alkalizing agents and have a pH of 7 to 12.

22. - A first composition comprising b) as described in any one of claims 1 to 19, - A second composition comprising c) as described in any one of claims 1 to 19 and A kit for staining keratin fibers, including, One or more of the first composition, the second composition, and any third composition comprises a) as described in any one of claims 1 to 20. kit.

23. A method for dyeing keratin fibers, i) A step of preparing a dyeing composition A according to any one of claims 1 to 19, optionally composition B according to claim 20, and / or optionally one or more further compositions. ii) Optionally, mix composition A and B, mix composition A with one further composition, or mix composition A and B with one or more further compositions to obtain a ready-to-use composition having a pH of 7 to 12. iii) A step of applying composition A or the composition prepared in step ii) to keratin fibers, iv) Allow composition A or the composition prepared immediately before use to stand for 1 to 60 minutes, and optionally heat the keratin fibers to a temperature range of 40 to 60°C. v) Rinse the keratin fibers and optionally shampoo the keratin fibers. Methods that include...

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