Hair coloring composition

Abstract

Kits for obtaining hair coloring compositions, hair coloring compositions, and methods for treating hair are provided. The hair coloring compositions in particular provide desired shade and intensity with improved evenness from root to tip to hair, especially to previously dyed hair and hair with a wide range of damage levels along the length of the hair.

Description

Technical Field

[0001] The present invention relates to a kit for obtaining a hair coloring composition, a hair coloring composition, a method of treating hair and its use. The hair coloring composition obtained by mixing a dye component and an oxidizing component has a slightly alkaline pH, which decreases to a slightly acidic pH during the development time after its application to the hair. The present invention particularly provides a desired color shade and intensity while maintaining the natural variation between the hair strands with enhanced root-to-tip evenness for hair having a wide range of damage levels, particularly previously dyed hair and hair along its length.

Background Art

[0002] The permanent change in the color of keratin fibers, particularly human hair, by the application of hair dyes is well known. A complex chemical process may be utilized to provide consumers with hair color. Permanent hair dye formulations typically contain oxidative hair dye precursors, which can diffuse through the cuticle into the hair and the cortex, where they can react with each other and with a suitable oxidizing agent to form the desired dye molecules. These resulting molecules are larger and thus cannot diffuse easily from the hair during subsequent washing with water and / or detergent, providing the color immutability desired by the consumer.

[0003] Currently, a wide variety of hair oxidative coloring compositions are available that provide the desired shade and color intensity. However, users are often disappointed with the root-to-end performance of these compositions. In fact, a considerable lack of uniformity in coloring can be noticeable between the roots and ends, especially in previously dyed hair. In particular, the ends may be darker than the roots. In addition, these compositions can be aggressive to the hair and cause damage. To make the compositions milder to the hair and scalp, their pH can be lowered to a slightly alkaline or acidic range. However, the uniformity problem becomes even more pronounced, with virtually no color absorption in virgin hair and excessive color absorption in previously damaged hair, which may manifest as, for example, almost no color at the roots and oversaturated ends. Another common problem with the milder compositions currently available is the high degree of color variability from user to user due to differences in the level of damage, which makes the final result unpredictable and leads to dissatisfaction for both stylists and end consumers.

[0004] For example, International Publication No. 2020 / 188001, filed on March 18, 2020, relates to a hair coloring agent composition.

[0005] There is a need to provide a hair coloring composition obtained by mixing dye and oxidizing components in this way that provides good root-to-tip uniformity to hair, especially previously dyed hair. There is also a need to provide a hair coloring composition obtained by mixing dye and oxidizing components that provides a desired shade and color intensity without impairing root-to-tip uniformity to the hair. Furthermore, there is a need to provide a hair coloring composition obtained by mixing dye and oxidizing components that is milder on the hair, particularly in terms of pH, compared to known hair coloring compositions, and that maintains natural strand variation without impairing root-to-tip uniformity to the hair. [Overview of the Initiative]

[0006] In one embodiment, the present invention is a kit for obtaining a hair coloring composition by mixing a dye component and an oxidizing component in a weight ratio of 3:1 to 1:3, The dye component has a pH of 8.5 to 10, and relative to the total weight of the dye component, - At least one alkalizing agent present in an amount of 0.2-4%, - At least one chelating agent present in an amount of 1.2-1.8%, - At least one buffered acid compound present in an amount of 0.01-0.6%, which is citric acid, - At least one anionic surfactant present in an amount of 0.2-1%, - At least one fatty alcohol present in an amount of 1.6-2.5%, - At least one nonionic surfactant present in an amount of 0.1-0.5%, - If present, at least one oxidized hair dye precursor and at least one coupler, present in an amount of 20% or less in total, and - At least one solvent present in an amount of at least 50% Includes, The oxidizing component has a pH of 1.8 to 3.5, and relative to the total weight of the oxidizing component, - At least one oxidizing agent present in an amount of 1-3%, - At least one buffered acid compound present in an amount of 0.15-0.5%, which is phosphoric acid, - At least one buffered alkali compound present in an amount of 0.2-0.6%, which is disodium phosphate, and - At least one solvent present in an amount of at least 50% Regarding the kit, including.

[0007] In some embodiments, the hair coloring composition is obtained by mixing a dye component and an oxidizing component in a weight ratio of 2:1 to 1:2, preferably about 1:1.

[0008] In some embodiments, the dye component has a pH of 9 to 10, and relative to the total weight of the dye component, - Alkalizing agent present in an amount of 0.2-2%, preferably 0.2-1%, preferably 0.6-0.9%, - A chelating agent present in an amount of 1.2-1.6%, preferably about 1.4%, - Buffered acid compounds present in an amount of 0.05 to 0.45%, preferably 0.15 to 0.45%, - Anionic surfactant present in an amount of 0.5-0.8%, preferably 0.5-0.65%, - Fatty alcohols present in an amount of 1.6-2.3%, preferably 1.65-2.1%, - A nonionic surfactant present in an amount of 0.2-0.3%, preferably about 0.25%. - Oxidized hair dye precursors and at least one coupler present in an amount of 0.002 to 20%, preferably 0.002 to 10%, preferably 0.002 to 4%, preferably 0.002 to 2%, and - The solvent present in an amount of at least 60%, preferably at least 70%. Includes.

[0009] In some embodiments, the oxidizing component has a pH of 2-3, and relative to the total weight of the oxidizing component, - A solvent present in an amount of at least 60%, preferably at least 70%, - An oxidizing agent present in an amount of 1.2-2.4%, preferably 1.5-2%, - Buffered acid compounds present in an amount of 0.17-0.4%, preferably 0.17-0.3%, - A buffered alkali compound present in an amount of 0.2-0.5%, preferably 0.2-0.35%, and - The solvent present in an amount of at least 60%, preferably about 70%. Includes.

[0010] In some embodiments, the alkalizing agent present in the dye component is selected from ammonia, alkanolamines, alkali metals and ammonium hydroxide, alkali metals and ammonium carbonate, and mixtures thereof; preferably selected from ammonia, monoethanolamine, sodium hydroxide, and mixtures thereof; preferably the alkalizing agent is a mixture of monoethanolamine and sodium hydroxide.

[0011] In some embodiments, the chelating agent present in the dye component is selected from carboxylic acids, phosphonic acids, polyphosphates, their salts, and mixtures thereof; preferably selected from aminocarboxylic acids; preferably selected from DTPA, EDDS, EDGA, HPDS, GADS, EDDG, HPDDS, EDTA, EDC, EDDHA, DDS, HBED, their salts, and mixtures thereof; preferably selected from EDDS, EDTA, their salts, and mixtures thereof; preferably the chelating agent is a mixture of EDDS and EDTA.

[0012] In some embodiments, the buffered acid compound present in the dye component is citric acid.

[0013] In some embodiments, the anionic surfactant present in the dye component is selected from C14-C30 alkyl phosphates, C14-C30 alkyl ether phosphates, and mixtures thereof; preferably selected from C14-C18 alkyl phosphates, C14-C18 alkyl ether phosphates, and mixtures thereof; preferably the anionic surfactant is a mixture of dicetyl phosphate and ceteth-10 phosphate.

[0014] In some embodiments, the fatty alcohol present in the dye component is selected from linear or branched C14-C30 fatty alcohols; preferably selected from cetyl alcohol, stearyl alcohol, cetostearyl alcohol, cetearyl alcohol, behenyl alcohol, and mixtures thereof; preferably the fatty alcohol is cetearyl alcohol.

[0015] In some embodiments, the nonionic surfactant present in the dye component is selected from polyoxyethylene C14-C30 alkyl ethers; preferably selected from polyoxyethylene C14-C30 alkyl ethers containing polyethylene oxide chains having 1 to at least 50; preferably selected from steareth-20, steareth-100, steareth-150, steareth-200, and mixtures thereof; preferably the nonionic surfactant is steareth-200.

[0016] In some embodiments, the oxidized hair dye precursors present in the dye component are toluene-2,5-diamine, p-phenylenediamine, N-phenyl-p-phenylenediamine, N,N-bis(2-hydroxyethyl)-p-phenylenediamine, 2-hydroxyethyl-p-phenylenediamine, hydroxypropyl-bis-(N-hydroxyethyl-p-phenylenediamine), 2-methoxymethyl-p-phenylenediamine, 2-(1,2-dihydroxyethyl)-p-phenylenediamine, 2,2 '-(2-(4-aminophenylamino)ethylazandiyl)diethanol, 2-(2,5-diamino-4-methoxyphenyl)propane-1,3-diol, 2-(7-amino-2H-benzo[b][1,4]oxazin-4(3H)-yl)ethanol, 2-chloro-p-phenylenediamine, p-aminophenol, p-(methylamino)phenol, 4-amino-m-cresol, 6-amino-m-cresol, 5-ethyl-o-aminophenol, 2-methoxy-p-phenylenediamine, 2,2'-Methylenebis-4-aminophenol, 2,4,5,6-Tetraaminopyrimidine, 2,5,6-Triamino-4-pyrimidinol, 1-Hydroxyethyl-4,5-Diaminopyrazole sulfate, 4,5-Diamino-1-Methylpyrazole, 4,5-Diamino-1-Ethylpyrazole, 4,5-Diamino-1-Isopropylpyrazole, 4,5-Diamino-1-Butylpyrazole, 4,5-Diamino-1-Pentylpyrazole, 4,5-Diamino-1-Benzylpyrazole, 2,3- Diamino-6,7-dihydroxypyrazolo[1,2-a]pyrazole-1(5H)-on dimethosulfonate, 4,5-diamino-1-hexylpyrazole, 4,5-diamino-1-heptylpyrazole, methoxymethyl-1,4-diaminobenzene, N,N-bis(2-hydroxyethyl)-N-(4-aminophenyl)-1,2-diaminotan, 2-[(3-aminopyrazolo[1,5-a]pyridine-2-yl)oxy]ethanol hydrochloride, their salts, and mixtures thereof selected from;The coupler contains resorcinol, 4-chlororesorcinol, 2-chlororesorcinol, 2-methylresorcinol, 4,6-dichlorobenzene-1,3-diol, 2,4-dimethylbenzene-1,3-diol, m-aminophenol, 4-amino-2-hydroxytoluene, 2-methyl-5-hydroxyethylaminophenol, 3-amino-2,6-dimethylphenol, 3-amino-2,4-dichlorophenol, 5-amino-6-chloro-o-cresol, 5-amino-4-chloro-o-cresol, 6-hydroxyben Zomorpholine, 2-amino-5-ethylphenol, 2-amino-5-phenylphenol, 2-amino-5-methylphenol, 2-amino-6-methylphenol, 2-amino-5-ethoxyphenol, 5-methyl-2-(methylamino)phenol, 2,4-diaminophenoxyethanol, 2-amino-4-hydroxyethylaminoanisole, 1,3-bis-(2,4-diaminophenoxy)-propane, 2,2'-(2-methyl-1,3-phenylene)bis(azandiyl)diethanol, benzene-1,3-diamine, 2,2'-(4,6-diamino-1,3-phenylene)bis(oxy)diethanol, 3-(pyrrolidine-1-yl)aniline, 1-(3-(dimethylamino)phenyl)urea, 1-(3-aminophenyl)urea, 1-naphthol, 2-methyl-1-naphthol, 1,5-naphthalenediol, 2,7-naphthalenediol or 1-acetoxy-2-methylnaphthalene, 4-chloro-2-methylnaphthalene-1-ol, 4-methoxy-2-methylnaphthalene-1-ol, 2,6-dihydroxy-3,4-dimethylpyridine, 2,6 -Selected from dimethoxy-3,5-pyridinediamine, 3-amino-2-methylamino-6-methoxypyridine, 2-amino-3-hydroxypyridine, 2,6-diaminopyridine, pyridine-2,6-diol, 5,6-dihydroxyindole, 6-hydroxyhydroxyindole, 5,6-dihydroxyindoline, 3-methyl-1-phenyl-1H-pyrazole-5(4H)-one, 1,2,4-trihydroxybenzene, 2-(benzo[d][1,3]dioxol-5-ylamino)ethanol, and mixtures thereof.

[0017] In some embodiments, the solvent present in the dye component is water, or a mixture of water and at least one organic solvent; preferably at least one organic solvent selected from C1-C4 lower alkanols, aromatic alcohols, polyols and polyol ethers, propylene carbonate, and mixtures thereof; preferably at least one organic solvent selected from ethanol, propanol, isopropanol, glycerol, 1,2-propylene glycol, hexylene glycol, ethoxydiglycol, and mixtures thereof. The mixture is preferably selected; preferably the solvent is a mixture of water and at least one organic solvent; preferably the solvent is a mixture of water and propylene glycol.

[0018] In some embodiments, the oxidizing agent present in the oxidizing component is selected from water-soluble inorganic oxygen-containing substances that can generate hydrogen peroxide in an aqueous solution; preferably selected from hydrogen peroxide, inorganic alkali metal peroxides, organic peroxides, inorganic perhydrate salt bleaching compounds, and mixtures thereof; preferably selected from hydrogen peroxide, persulfates, and mixtures thereof; preferably the oxidizing component is hydrogen peroxide.

[0019] In some embodiments, the buffering acidic compound present in the oxidizing component is phosphoric acid.

[0020] In some embodiments, the buffering alkaline compound present in the oxidizing component is disodium phosphate.

[0021] In some embodiments, the solvent is water, or a mixture of water and at least one organic solvent; preferably at least one organic solvent selected from C1-C4 lower alkanols, aromatic alcohols, polyols and polyol ethers, propylene carbonate, and mixtures thereof; preferably the solvent is water.

[0022] In some embodiments, the dye component further comprises at least one radical scavenger, at least one conditioning agent, at least one direct dye, and / or at least one thickener.

[0023] In some embodiments, the oxidizing component further comprises at least one chelating agent, at least one fatty alcohol, at least one conditioning agent, at least one direct dye, and / or at least one thickening agent.

[0024] In some embodiments, the dye component and / or oxidizing component comprises additional anionic surfactants, cationic surfactants, nonionic surfactants, amphoteric surfactants, zwitterionic surfactants, non-thickening viscosity (rheology) modifiers, fragrances, enzymes, dispersants, peroxide stabilizers, antioxidants, natural ingredients, ceramides, preservatives, opacifiers and pearling agents, and at least one other component selected from mixtures thereof.

[0025] In a second embodiment, the present invention relates to a hair coloring composition obtained by mixing the dye components and oxidizing components described herein, having a pH of 6.8 to 8, preferably 7.2 to 7.99.

[0026] In a third aspect, the present invention relates to a hair coloring composition having a pH of 6.8 to 8, preferably 7.2 to 7.99, and with respect to the total weight of the composition, - At least one alkalizing agent present in an amount of 0.1-2%, - At least one oxidizing agent present in an amount of 0.5-1.5%, - At least one chelating agent present in an amount of 0.6-0.9%, - At least one first buffered acid compound present in an amount of 0.05-0.3%, which is citric acid, - At least one second buffered acid compound present in an amount of 0.075-0.25%, which is phosphoric acid, - At least one buffered alkali compound present in an amount of 0.1-0.3%, which is disodium phosphate, - A gel network thickening agent system present in an amount of 1.2-4.5%, comprising at least one anionic surfactant, at least one fatty alcohol, and at least one nonionic surfactant. - At least one oxidized hair dye precursor and at least one coupler, if present, in an amount of 10% or less in total, and - At least one solvent present in an amount of at least 50% This relates to a hair coloring composition, which includes [a specific ingredient / method].

[0027] In some embodiments, the hair coloring composition further comprises at least one radical scavenger, at least one conditioning agent, at least one direct dye, at least one second chelating agent, and / or at least one thickening agent.

[0028] In some embodiments, the hair coloring composition comprises additional anionic surfactants, cationic surfactants, nonionic surfactants, amphoteric surfactants, zwitterionic surfactants, non-thickening viscosity (rheology) modifiers, fragrances, enzymes, dispersants, peroxide stabilizers, antioxidants, natural ingredients, ceramides, preservatives, opacifiers and pearlescent agents, and at least one other ingredient selected from mixtures thereof.

[0029] In a fourth embodiment, the present invention relates to a method for treating hair, - A step of preparing the dye components and oxidizing components described herein, - A step of mixing oxidizing components and dyeing components to obtain a hair coloring composition, - A step of applying a hair coloring composition for oxidative dyeing of keratin fibers to hair, - The process involves leaving the composition on the hair for 2 to 60 minutes, - The process of rinsing the composition off the hair and This includes methods.

[0030] In a fifth aspect, the present invention relates to the use of the hair coloring compositions described herein for maintaining natural strand-to-strand variation.

[0031] In a fifth embodiment, the present invention relates to the use of the hair coloring compositions described herein to provide enhanced uniformity from root to tip of the hair.

[0032] The inventors have surprisingly demonstrated that the hair coloring compositions obtained by mixing dye and oxidizing components according to the present invention provide the desired shade and intensity without compromising uniformity from root to tip. In particular, the hair coloring compositions provide enhanced root-to-tip uniformity even in previously dyed hair and hair with a wide range of damage levels along its length. Unexpectedly, it has been observed that when a coloring composition with a slightly alkaline pH comes into contact with hair, its pH gradually decreases to the slightly acidic range during the application time. A greater pH decrease may be detected in damaged hair. While we do not wish to be bound by any theory, the inventors believe that this effect is achieved by a specific combination of chelating and buffering action. Conventional alkaline hair coloring compositions, i.e., with a pH of at least 9, have sufficient coloring ability because a larger amount of alkalizing agent rapidly generates the large amount of oxygen required for the reaction of the dye when reacting with hydrogen peroxide. Lowering the pH of the hair coloring composition also lowers the reaction rate due to the lower oxygen supply. Therefore, color development may be impaired, resulting in insufficient intensity and / or unpredictable color results. In contrast, the chelating agents present in the hair coloring compositions of the present invention, obtained by mixing dye and tint components, are thought to solubilize metals (such as iron or calcium) precipitated in small amounts on the hair roots, thereby allowing the dye reaction to begin even at a slightly alkaline pH. At the same time, there is a dual process in damaged hair where many copper ions are present: the chelating agents neutralize the copper ions that would otherwise cause an overly strong dye reaction, while the buffering capacity of the composition allows the pH to drop to a slightly acidic pH range during application, thus avoiding excessive color development, not only in undamaged hair but also in undamaged hair. [Modes for carrying out the invention]

[0033] As used herein, the term “hair” to be processed can be “living,” i.e., present in a living organism, or “non-living,” i.e., a wig, hairpiece, or other collection of non-living keratin fibers. Mammalian hair, preferably human hair, is preferred. However, wool, fur, and other keratin-containing fibers are suitable base materials for the compositions of the present invention.

[0034] A "hair coloring composition" means a composition suitable for changing the color of hair. A hair coloring composition will be referred to as "composition" unless otherwise specified herein. A hair coloring composition may contain oxidative dye precursors, direct dyes, or, in the case of a bleaching composition, may contain no or substantially no dyes, in which case the color change is primarily caused by the decomposition of natural melanin contained in the hair shaft by an oxidizing agent. The term "hair coloring composition," as used herein, encompasses hair bleaching and oxidative dyeing products.

[0035] All percentages are by weight of the hair coloring composition, i.e., the ready-to-use composition, unless otherwise specified. When more than one composition is used during processing, the total weight to be considered is, unless otherwise specified, the total weight of all compositions applied to the hair at the same time (i.e., the weight on the "head"), which is typically the result of mixing the oxidative component (also called the developer and / or oxidizing component) with the dye component (also called the shade and / or dye component). All ratios or percentages are by weight ratio or weight percentage unless otherwise specified.

[0036] When the term "approximately" is used in relation to weight ratio or weight percentage, it should be understood that the specific value means a range of ±10%. For example, approximately 1% of a compound means a weight percentage in the range of 0.9 to 1.1%. For example, approximately 2.5% of a compound means a weight percentage in the range of 2.25 to 2.75%.

[0037] hair coloring composition This paper describes a hair coloring composition obtained by mixing dye components and oxidizing components.

[0038] Oxidizing agent The composition contains at least one oxidizing agent present in an amount of 0.5 to 1.5%, preferably 0.6 to 1.2%, and preferably about 0.75 to 1%, relative to the total weight of the composition. "Water-soluble" as defined in this invention means that at least 0.1 g, 1 g, or 10 g of the oxidizing agent can be dissolved in 1 liter of deionized water under standard conditions.

[0039] Before mixing, the oxidizing agent may be present in the oxidizing components in an amount of 1-3%, preferably 1.2-2.4%, and preferably 1.5-2%, relative to the total weight of the oxidizing components.

[0040] The oxidizing agent may be a water-soluble inorganic peroxide that can produce hydrogen peroxide in an aqueous solution; preferably, the oxidizing agent may be selected from hydrogen peroxide, inorganic alkali metal peroxides (e.g., sodium periodate and sodium peroxide), organic peroxides (e.g., urea peroxide, melamine peroxide), inorganic perhydrate bleaching compounds (e.g., alkali metal salts of perboric acid, percarbonate, superphosphate, persilicic acid, and persulfate), and mixtures thereof; preferably, it may be selected from hydrogen peroxide, persulfates, and mixtures thereof; preferably, the oxidizing agent is hydrogen peroxide.

[0041] The oxidizing agent may be provided as an aqueous solution or as a powder that is dissolved before use.

[0042] Alkalinizing agent The composition contains at least one alkalizing agent present in an amount of 0.1 to 2%, preferably 0.1 to 1%, preferably 0.1 to 0.5%, and preferably 0.3 to 0.45%, relative to the total weight of the composition.

[0043] Before mixing, the alkalizing agent is present in the dye components in an amount of 0.2-4%, preferably 0.2-2%, preferably 0.2-1%, and preferably 0.6-0.9%, relative to the total weight of the dye components.

[0044] The alkalizing agent may be selected from ammonia, alkanolamines (e.g., monoethanolamine, diethanolamine, triethanolamine, monopropanolamine, dipropanolamine, trippropanolamine, 2-amino-2-methyl-1,3-propanediol, 2-amino-1-propanol, 2-amino-2-methyl-1-propanol, and 2-amino-2-hydroxymethyl-1,3-propanediol), dimethylglucamine, guanidinium salts, alkali metals and ammonium hydroxides (e.g., sodium hydroxide), alkali metals and ammonium carbonates, and mixtures thereof; preferably, it may be selected from ammonia, monoethanolamine, sodium hydroxide, and mixtures thereof; preferably, the alkalizing agent is a mixture of monoethanolamine and sodium hydroxide.

[0045] In this invention, alkalizing agents (e.g., ammonia, monoethanolamine, and their derivatives) are simply classified as "alkalizing agents."

[0046] Chelating agents The composition contains at least one chelating agent present in an amount of 0.6 to 0.9%, preferably 0.6 to 0.8%, and preferably 0.7%, relative to the total weight of the composition.

[0047] Before mixing, the chelating agent is present in the dye component and, optionally, in the oxidizing component. When the chelating agent is present in both the dye component and the oxidizing component, the chelating agent present in the dye component may be referred to as the "first chelating agent," and the chelating agent present in the oxidizing component may be referred to as the "second chelating agent." The first and second chelating agents present in the dye component and the oxidizing component may be the same compound or different compounds.

[0048] Before mixing, the chelating agent is present in the dye components in an amount of 1.2 to 1.8%, preferably 1.2 to 1.6%, and preferably about 1.4%, relative to the total weight of the dye components.

[0049] If present before mixing, the chelating agent may be present in the oxidizing components in an amount of 0.1% or less, preferably 0.001 to 0.05%, and preferably about 0.01%, relative to the total weight of the oxidizing components.

[0050] The chelating agent may be selected from carboxylic acids (e.g., aminocarboxylic acids), phosphonic acids (e.g., aminophosphonic acids), polyphosphates (e.g., linear polyphosphates), salts thereof, and mixtures thereof; preferably selected from aminocarboxylic acids, aminophosphonic acids, linear polyphosphates, salts thereof, and mixtures thereof; preferably selected from aminocarboxylic acids.

[0051] The aminocarboxylic acid chelating agent may be selected from diethylenetriaminepentaacetic acid (DTPA), ethylenediamine disuccinic acid (EDDS), ethylenediamine diglutaric acid (EDGA), 2-hydroxypropylenediamine disuccinic acid (HPDS), glycinamide-N,N'-disuccinic acid (GADS), ethylenediamine-N-N'-diglutaric acid (EDDG), 2-hydroxypropylenediamine-N-N'-disuccinic acid (HPDDS), ethylenediaminetetraacetic acid (EDTA), ethylenedisysteic acid (EDC), ethylenediamine-N-N'-bis(ortho-hydroxyphenylacetic acid) (EDDHA), diaminoalkyldi(sulfosuccinic acid) (DDS), N,N'-bis(2-hydroxybenzyl)ethylenediamine-N,N'-diacetic acid (HBED), their salts, and mixtures thereof; preferably, it may be selected from the group consisting of EDDS, EDTA, their salts, and mixtures thereof.

[0052] Aminophosphonic acids may be selected from aminotri-(methylenephosphonic acid), aminotri-(1-ethylphosphonic acid), aminotri-(isopropylphosphonic acid), ethylene-diaminetetra-(1-ethylphosphonic acid), aminotri-(1-propylphosphonic acid), ethylene-diaminetetra-(methylenephosphonic acid) (EDTMP), diethylene-triamine-penta-(methylenephosphonic acid) (DTPMP), their salts, and mixtures thereof.

[0053] In one embodiment, the (first) chelating agent present in the dye component is a mixture of EDDS and EDTA.

[0054] In one embodiment, the second chelating agent present in the oxidizing component is etidronic acid.

[0055] Buffer system The composition contains at least one buffered acidic compound present in an amount of 0.08 to 0.55%, preferably 0.125 to 0.425%, preferably 0.16 to 0.375%, based on the total weight of the composition, and at least one buffered alkaline compound present in an amount of 0.1 to 0.3%, preferably 0.1 to 0.25%, preferably 0.1 to 0.175%, where the buffered acidic compound and buffered alkaline compound form a buffer system. The buffer system allows for a decrease in pH from slightly alkaline to slightly acidic.

[0056] Before mixing, the buffered acid compound may be present in the oxidizing component and / or the dye component, preferably in the oxidizing component and the dye component, and the buffered alkali compound may be present in the oxidizing component.

[0057] Before mixing, when buffered acid compounds are present in both the oxidizing component and the dye component, the buffered acid compounds are present in an amount of 0.01 to 0.6%, preferably 0.05 to 0.45%, preferably 0.15 to 0.45%, relative to the total weight of the dye component, and the buffered acid compounds are present in an amount of 0.15 to 0.5%, preferably about 0.17 to 0.4%, preferably 0.17 to 0.3%, relative to the total weight of the oxidizing component.

[0058] Before mixing, the buffered alkali compound is present in the oxidizing components in an amount of 0.2-0.6%, preferably 0.2-0.5%, and preferably 0.2-0.35%, relative to the total weight of the oxidizing components.

[0059] The buffer acid compound is selected from organic and inorganic acids; preferably selected from sulfurous acid, sulfuric acid, hydrochloric acid, hyponitrite, nitrite, nitric acid, phosphoric acid, phosphorous acid, citric acid, malic acid, and mixtures thereof; preferably selected from phosphoric acid, phosphorous acid, citric acid, malic acid, hydrochloric acid, hyponitrite, and mixtures thereof; preferably selected from phosphoric acid, citric acid, and mixtures thereof.

[0060] The buffered alkali compound may be selected from alkali metal salts, amino acids, their salts, and mixtures thereof; preferably selected from glycine, alkali metal salts, amino acids, chlorides, nitrates, their salts, and mixtures thereof; preferably selected from alkali metal chlorides, nitrates and / or phosphoric acid, glycine, their salts, and mixtures thereof; preferably selected from alkali metal phosphoric acid, their salts, and mixtures thereof; preferably the buffered alkali compound is disodium phosphate. In the present invention, alkalizing agents (e.g., ammonia, monoethanolamine, sodium hydroxide, and their derivatives) are not classified as “buffered alkali compounds.” Therefore, the expression “buffered alkali compound” now excludes, for example, ammonia, monoethanolamine, sodium hydroxide, and their derivatives.

[0061] The buffer system may include buffered acid compounds, such as phosphoric acid and citrate, as well as the corresponding buffered alkali compound, such as disodium phosphate.

[0062] In one embodiment, the dye component comprises a first buffered acid compound, and the oxidizing component comprises a second buffered alkali compound and a buffered alkali compound. In a preferred embodiment, the first buffered acid compound is citric acid, the second buffered acid compound is phosphoric acid, and the buffered alkali compound is disodium phosphate.

[0063] When the first buffered acid compound (e.g., citric acid) present in the dye component is different from the second buffered acid compound (e.g., phosphoric acid) present in the oxidizing component, the composition contains 0.05 to 0.3%, preferably 0.025 to 0.225%, preferably 0.075 to 0.225%, and 0.075 to 0.225% of the first buffered acid compound, and 0.075 to 0.25%, preferably 0.0.85 to 0.2%, preferably 0.085 to 0.15%, of the total weight of the composition.

[0064] Gel network thickener The composition contains a gel network thickening agent system present in an amount of 1.2 to 4.5%, preferably 2 to 4%, relative to the total weight of the composition. The gel network thickening agent system is defined as a thickening system comprising a tertiary system. This system comprises at least one anionic surfactant, at least one fatty alcohol, and at least one nonionic surfactant.

[0065] Before mixing, anionic surfactant components may be present in the dye components, fatty alcohols may be present in the dye components and / or oxidizing components, and nonionic surfactants may be present in the dye components.

[0066] The anionic surfactant may be selected from C14-C30 alkyl phosphates, C14-C30 alkyl ether phosphates, and mixtures thereof; preferably, it may be selected from C14-C18 alkyl phosphates, C14-C18 alkyl ether phosphates, and mixtures thereof; preferably, the anionic surfactant is a mixture of dicetyl phosphate and ceteth-10 phosphate. Preferably, the alkyl ether phosphate has an average of 1-20, preferably 1-10, ethylene oxide units.

[0067] The anionic surfactant may be present in an amount of 0.1 to 0.5%, preferably 0.25 to 0.4%, and preferably 0.25 to 0.325%, relative to the total weight of the composition.

[0068] Before mixing, the anionic surfactant may be present in the dye components in an amount of 0.2 to 1%, preferably 0.5 to 0.8%, and preferably 0.5 to 0.65%, relative to the total weight of the dye components.

[0069] The fatty alcohol may be selected from linear or branched C14-C30 fatty alcohols and mixtures thereof; preferably selected from cetyl alcohol, stearyl alcohol, cetostearyl alcohol, cetearyl alcohol, behenyl alcohol, and mixtures thereof; preferably selected from cetearyl alcohol.

[0070] Before mixing, fatty alcohols may be present in the dye component and / or the oxidizing component. In one embodiment, the fatty alcohols are present only in the dye component. In an alternative embodiment, the fatty alcohols are present in both the dye component and the oxidizing component.

[0071] The dye component may contain 1.6 to 2.5%, preferably 1.6 to 2.3%, and preferably 1.65 to 2.1%, of fatty alcohols relative to the total weight of the dye component.

[0072] The oxidizing component may contain fatty alcohols in an amount of 1.6 to 3.4%, preferably 1.8 to 3.2%, and preferably 2 to 3%, relative to the total weight of the oxidizing component.

[0073] Fatty alcohols may be present in an amount of 0.8 to 1.25%, preferably 0.8 to 1.15%, and preferably 0.825 to 1.05%, relative to the total weight of the composition. Alternatively, fatty alcohols may be present in an amount of 1.6 to 2.95%, preferably 1.7 to 2.75%, and preferably 1.825 to 2.55%, relative to the total weight of the composition.

[0074] The nonionic surfactant may be selected from polyoxyethylene C14-C30 alkyl ethers; preferably selected from polyoxyethylene C14-C30 alkyl ethers containing one or more polyethylene oxide chains having at least 50, or 50-200, or 100-200 ethylene oxide units; preferably selected from steareth-20, steareth-100, steareth-150, steareth-200, and mixtures thereof; preferably selected from steareth-200.

[0075] Nonionic surfactants may be present in an amount of 0.05 to 0.25%, preferably about 0.125%, of the total weight of the composition.

[0076] Before mixing, the nonionic surfactant may be present in the dye components in an amount of 0.1-0.5%, preferably 0.2-0.3%, and preferably about 0.25%, relative to the total weight of the components.

[0077] hair dye The composition comprises at least one oxidized hair dye precursor (also known as a "primary intermediate," "primary dye," or "dye intermediate") and at least one coupler (also known as a "color modifier" or "secondary intermediate") present in an amount of 10% or less in total weight of the composition, preferably 0.001 to 10%, preferably 0.001 to 5%, preferably 0.1 to 2%, and preferably 0.2 to 1%.

[0078] Before mixing, the oxidized hair dye precursor and coupler may be present in the dye component in an amount of 20% or less in total weight of the component, preferably 0.002 to 20%, preferably 0.002 to 10%, preferably 0.2 to 4%, and preferably 0.4 to 2%.

[0079] The selection of precursors and couplers is determined by the desired color, shade, and intensity of the dye. Hair dye precursors and couplers can be used alone or in combination in this invention to provide dyes with a variety of shades ranging from grayish-blonde to black.

[0080] The primary intermediates are toluene-2,5-diamine, p-phenylenediamine, N-phenyl-p-phenylenediamine, N,N-bis(2-hydroxyethyl)-p-phenylenediamine, 2-hydroxyethyl-p-phenylenediamine, hydroxypropyl-bis-(N-hydroxyethyl-p-phenylenediamine), 2-methoxymethyl-p-phenylenediamine, 2-(1,2-dihydroxyethyl)-p-phenylenediamine, and 2,2'-(2-(4-aminophenylamino)eth Luazanediyl) diethanol, 2-(2,5-diamino-4-methoxyphenyl)propane-1,3-diol, 2-(7-amino-2H-benzo[b][1,4]oxazine-4(3H)-yl)ethanol, 2-chloro-p-phenylenediamine, p-aminophenol, p-(methylamino)phenol, 4-amino-m-cresol, 6-amino-m-cresol, 5-ethyl-o-aminophenol, 2-methoxy-p-phenylenediamine, 2,2'-methylenebis-4-amine Nophenol, 2,4,5,6-tetraaminopyrimidine, 2,5,6-triamino-4-pyrimidinol, 1-hydroxyethyl-4,5-diaminopyrazole sulfate, 4,5-diamino-1-methylpyrazole, 4,5-diamino-1-ethylpyrazole, 4,5-diamino-1-isopropylpyrazole, 4,5-diamino-1-butylpyrazole, 4,5-diamino-1-pentylpyrazole, 4,5-diamino-1-benzylpyrazole, 2,3-diamino-6,7-diamino The following may be selected: droxypyrazolo[1,2-a]pyrazole-1(5H)-ondimethosulfonate, 4,5-diamino-1-hexylpyrazole, 4,5-diamino-1-heptylpyrazole, methoxymethyl-1,4-diaminobenzenebenzene, N,N-bis(2-hydroxyethyl)-N-(4-aminophenyl)-1,2-diaminotan, 2-[(3-aminopyrazolo[1,5-a]pyridine-2-yl)oxy]ethanol hydrochloride, their salts, and mixtures thereof.

[0081] The coupler contains resorcinol, 4-chlororesorcinol, 2-chlororesorcinol, 2-methylresorcinol, 4,6-dichlorobenzene-1,3-diol, 2,4-dimethylbenzene-1,3-diol, m-aminophenol, 4-amino-2-hydroxytoluene, 2-methyl-5-hydroxyethylaminophenol, 3-amino-2,6-dimethylphenol, 3-amino-2,4-dichlorophenol, 5-amino-6-chloro-o-cresol, 5-amino-4-chloro-o-cresol, 6-hydroxybenzomorpholine, 2 -amino-5-ethylphenol, 2-amino-5-phenylphenol, 2-amino-5-methylphenol, 2-amino-6-methylphenol, 2-amino-5-ethoxyphenol, 5-methyl-2-(methylamino)phenol, 2,4-diaminophenoxyethanol, 2-amino-4-hydroxyethylaminoanisole, 1,3-bis-(2,4-diaminophenoxy)propane, 2,2'-(2-methyl-1,3-phenylene)bis(azandiyl)diethanol, benzene-1,3-diamine, 2,2'-(4,6-diamino- 1,3-phenylene)bis(oxy)diethanol, 3-(pyrrolidine-1-yl)aniline, 1-(3-(dimethylamino)phenyl)urea, 1-(3-aminophenyl)urea, 1-naphthol, 2-methyl-1-naphthol, 1,5-naphthalenediol, 2,7-naphthalenediol or 1-acetoxy-2-methylnaphthalene, 4-chloro-2-methylnaphthalene-1-ol, 4-methoxy-2-methylnaphthalene-1-ol, 2,6-dihydroxy-3,4-dimethylpyridine, 2,6-dimethoxy-3,5-pyridinediamine, 3- It can be selected from amino-2-methylamino-6-methoxypyridine, 2-amino-3-hydroxypyridine, 2,6-diaminopyridine, pyridine-2,6-diol, 5,6-dihydroxyindole, 6-hydroxyindole, 5,6-dihydroxyindoline, 3-methyl-1-phenyl-1H-pyrazole-5(4H)-one, 1,2,4-trihydroxybenzene, 2-(benzo[d][1,3]dioxol-5-ylamino)ethanol (also known as hydroxyethyl-3,4-methylenedioxyaniline), and mixtures thereof.

[0082] The oxidative hair dye precursor may be selected from p-aminophenol, N,N-bis(2-hydroxyethyl)-p-phenylenediamine, 3-methyl-p-aminophenol, methoxymethyl-1,4-diaminobenzene, 2,5-toluenediamine sulfate, and mixtures thereof; the coupler may be selected from resorcinol, 4-amino-2-hydroxytoluene, 2-methylresorcinol, hydroxyethyl-3,4-methylenedioxyaniline, and mixtures thereof.

[0083] solvent The composition comprises at least one solvent present in an amount of at least 50%, preferably at least 60%, and preferably at least 70% of the total weight of the composition.

[0084] Before mixing, the solvent may be present in the dye component and / or the oxidizing component, preferably in the dye component and the oxidizing component.

[0085] Before mixing, the dye component contains at least 50%, preferably at least 60%, and preferably at least 70%, of the solvent relative to the total weight of the dye component.

[0086] Before mixing, the oxidizing component contains at least 50%, preferably at least 60%, and preferably at least 70% solvent relative to the total weight of the oxidizing component.

[0087] The solvent may be selected from water, or a mixture of water and at least one organic solvent for dissolving compounds that would typically not be sufficiently soluble in water. The organic solvent may be selected from C1-C4 lower alkanols (e.g., ethanol, propanol, isopropanol), aromatic alcohols (e.g., benzyl alcohol and phenoxyethanol), polyols and polyol ethers (e.g., carbitol, 2-butoxyethanol, propylene glycol, propylene glycol monomethyl ether, diethylene glycol monoethyl ether, monomethyl ether, hexylene glycol, glycerol, ethoxyglycol, butoxydiglycol, ethoxydiglycol, dipropylene glycol, polyglycerol), propylene carbonate, and mixtures thereof; preferably, it may be selected from the group consisting of ethanol, propanol, isopropanol, glycerol, 1,2-propylene glycol, hexylene glycol, ethoxydiglycol, and mixtures thereof; preferably, the organic solvent is propylene glycol.

[0088] In one embodiment, the dye component comprises a solvent containing water and propylene glycol.

[0089] In one embodiment, the oxidizing component comprises a solvent in which water is present.

[0090] pH of the composition The composition has a pH of 6.8–8, preferably 7.2–7.99, when freshly mixed (i.e., immediately after mixing), which decreases to 6.5–7.0 during the color development time on the hair (e.g., after 20 minutes). Slow decomposition of hydrogen peroxide in a slightly acidic range results in less hair damage, while the initial slightly alkaline pH allows for sufficient dye formation to deliver the desired color result. Dye formation is known to decrease with decreasing pH of the hair coloring composition; therefore, it is important to find a pH range that reduces hair damage without compromising the color result. The pH of the composition can be determined using a Mettler Toledo MP220 or MP225 pH instrument equipped with a standard laboratory pH electrode. The instrument is calibrated using a standard calibration buffer and standard calibration techniques before each use.

[0091] Radical Scavenger The composition may contain at least one radical scavenger present in an amount of 0.5% or less, preferably 0.2% or less, and preferably 0.1% or less.

[0092] If present, the composition may contain at least one radical scavenger in an amount of 0.01 to 0.5%, preferably 0.01 to 0.2%, and preferably about 0.15%, relative to the total weight of the composition.

[0093] The dye component may contain at least one radical scavenger in an amount of 1% or less, preferably 0.4% or less, and preferably 0.2% or less, relative to the total weight of the dye component.

[0094] Before mixing, if present, radical scavengers may be present in the dye components in an amount of 1% or less, preferably 0.02 to 1%, preferably 0.02 to 0.4%, and preferably about 0.3%, relative to the total weight of the dye components.

[0095] Radical scavengers help reduce damage to hair during the oxidation process.

[0096] Radical scavengers may be selected from alkanolamines, amino sugars, amino acids, amino acid esters, and mixtures thereof; preferably 3-amino-1-propanol, 4-amino-1-butanol, 5-amino-1-pentanol, 1-amino-2-propanol, 1-amino-2-butanol, 1-amino-2-pentanol, 1-amino-3-pentanol, 1-amino-4-pentanol, 3-amino-2-methylpropan-1-ol, 1-amino-2-methylpropan-2-ol Radical scavengers may be selected from 3-aminopropane-1,2-diol, glucosamine, N-acetylglucosamine, glycine, arginine, lysine, proline, glutamine, histidine, sarcosine, serine, glutamic acid, tryptophan, their salts, and mixtures thereof; preferably selected from glycine, sarcosine, lysine, serine, 2-methoxyethylamine, glucosamine, glutamic acid, morpholine, piperidine, ethylamine, 3-amino-1-propanol, and mixtures thereof. When used herein, the term “their salts” in relation to radical scavengers means in particular potassium salts, sodium salts, ammonium salts, and mixtures thereof.

[0097] Conditioning agent The composition may contain at least one conditioning agent in an amount of 20% or less.

[0098] The composition may contain at least one conditioning agent. If present, the composition may contain 0.05 to 20%, preferably 0.1 to 15%, preferably 0.2 to 10%, preferably 0.2% to 5%, preferably about 1.65% or about 2.5% of the total weight of the composition.

[0099] Before mixing, the conditioning agent may be present in the dye component, oxidizing component, or third component, preferably the oxidizing component.

[0100] In one embodiment, the conditioning agent is present in the oxidizing component.

[0101] If present before mixing, the conditioning agent may be present in the oxidizing components in an amount of 40% or less, preferably 0.1-40%, preferably 0.2-30%, preferably 0.4-20%, preferably 0.4-10%, and preferably about 3.3% of the total weight of the oxidizing components.

[0102] The conditioning agent may be selected from polyhydric alcohols, silicone materials, aminosilicones, fatty alcohols, polymer resins, polyol carboxylic acid esters, cationic polymers, cationic surfactants, insoluble oils, oil-derived materials, mineral oils, and mixtures thereof; preferably the conditioning agent is mineral oil.

[0103] direct dye The composition may also contain at least one direct dye. The direct dye may be present in an amount of 0.05% to 4% of the total weight of the composition.

[0104] Before mixing, direct dyes may be present in the dye components and / or oxidizing components.

[0105] The dye component may contain less than 4% of the total weight of the dye component, preferably 0.05 to 4% of the direct dye. Alternatively, the dye component may contain less than 2% of the total weight of the dye component, preferably 0.025 to 2% of the direct dye.

[0106] The oxidizing component may contain less than 4% of the total weight of the oxidizing component, preferably 0.05 to 4% of the direct dye. Alternatively, the oxidizing component may contain less than 2% of the total weight of the oxidizing component, preferably 0.025 to 2% of the direct dye.

[0107] Thickening agent The composition may contain at least one thickening agent present in an amount of at least 0.05%, preferably 0.05% to 1.0%, relative to the total weight of the composition.

[0108] Before mixing, the thickener may be present in the dye component and / or the oxidizing component.

[0109] Before mixing, the thickener may be present in the dye components in an amount of at least 0.1%, preferably 0.1% to 2.0%, and preferably about 0.15%, relative to the total weight of the dye components.

[0110] Before mixing, the thickener may be present in the oxidizing components in an amount of 0.1% or less, preferably 0.001% to 0.1%, relative to the total weight of the oxidizing components.

[0111] The thickener can be selected from associative polymers, polysaccharides, non-associative polycarboxylic acid polymers, and mixtures thereof.

[0112] In one embodiment, the dye component comprises at least one polysaccharide.

[0113] In one embodiment, the oxidizing component comprises at least one associative polymer.

[0114] As used herein, the expression “associative polymer” means an amphiphilic polymer containing both hydrophilic and hydrophobic units, for example, at least one C8-C30 fatty acid chain and at least one hydrophilic unit. Associative polymers can reversibly bond to each other or to other molecules. Suitable associative thickeners include, but are not limited to, nonionic amphiphilic polymers containing at least one hydrophilic unit and at least one fatty acid chain unit; anionic amphiphilic polymers containing at least one hydrophilic unit and at least one fatty acid chain unit; cationic amphiphilic polymers containing at least one hydrophilic unit and at least one fatty acid chain unit; and amphoteric amphiphilic polymers containing at least one hydrophilic unit and at least one fatty acid chain unit, as well as mixtures thereof.

[0115] Suitable nonionic amphiphilic polymers comprising at least one fatty acid chain and at least one hydrophilic unit include, but are not limited to, cellulose modified with a group comprising at least one fatty acid chain (e.g., hydroxyethylcellulose modified with a group comprising at least one fatty acid chain selected from alkyl, alkenyl, and alkylaryl groups); hydroxypropyl guar modified with a group comprising at least one fatty acid chain; polyether urethanes comprising at least one fatty acid chain (e.g., C8-C30 alkyl or alkenyl groups); copolymers of vinylpyrrolidone and hydrophobic monomers comprising fatty acid chains; copolymers of C1-C6 alkyl acrylates or methacrylates and amphiphilic monomers comprising at least one fatty acid chain; copolymers of hydrophilic acrylates or methacrylates and hydrophobic monomers comprising at least one fatty acid chain; and mixtures thereof.

[0116] A suitable nonionic amphiphilic polymer comprising at least one hydrophilic unit and at least one fatty acid unit includes, but is not limited to, a polymer comprising at least one fatty acid allyl ether unit and at least one hydrophilic unit comprising at least one ethylenically unsaturated anionic monomer unit (e.g., a unit selected from vinyl carboxylic acid units, particularly acrylic acid, methacrylic acid, and mixtures thereof), wherein the fatty acid allyl ether unit is given by the following formula (I) CH2=C(R1)CH2OBnR (I) [In the formula, R1 is selected from H and CH3, B is an ethylene oxy group, n is selected from zero and integers in the range of 1 to 100, and R is selected from hydrocarbon-based groups selected from alkyl, alkenyl, arylalkyl, aryl, alkylaryl and cycloalkyl groups containing 8 to 30 carbon atoms, and moreover, for example, 10 to 24 carbon atoms, and moreover, for example, 12 to 18 carbon atoms.] It corresponds to the monomer.

[0117] Suitable anionic amphiphilic polymers include, but are not limited to, polymers comprising at least one hydrophilic unit of the unsaturated olefinic carboxylic acid type and at least one hydrophobic unit of the type such as a (C8-C30) alkyl ester or (C8-C30) oxyethylene alkyl ester of an unsaturated carboxylic acid, where the hydrophilic unit of the unsaturated olefinic carboxylic acid type is, for example, the following formula (II) CH2=C(R1)COOH (II) [In the formula, R1 is selected from H, CH3, C2H5, and CH2COOH (i.e., acrylic acid, methacrylic, ethacryl, and itaconic acid units)] Corresponding to the monomer, Hydrophobic units of the type (C8-C30) alkyl esters or (C8-C30) oxyethylene alkyl esters of unsaturated carboxylic acids are, for example, given by formula (III) below. CH2=C(R1)COOBnR2 (III) [In the formula, R1 is selected from H, CH3, C2H5 and CH2COOH (i.e., acrylate, methacrylate, ethanolacrylate and itaconate units), B is an ethyleneoxy group, n is selected from zero and integers in the range of 1 to 100, and R2 is selected from C8-C30 alkyl groups, for example, C12-C22 alkyl groups.] It corresponds to the monomer.

[0118] Anionic amphiphilic polymers may be further crosslinked. The crosslinking agent is the following group (IV) CH2=C< (IV) The monomer may contain the unsaturated bond together with at least one other polymerizable group whose unsaturated bond is not conjugated to one another. Examples include polyallyl ethers such as polyallylsucrose and polyallylpentaerythritol.

[0119] Suitable cationic amphiphilic polymers include, but are not limited to, quaternated cellulose derivatives and polyacrylates containing amino side groups. Quaternated cellulose derivatives are selected from, for example, quaternated cellulose modified with groups containing at least one fatty chain, such as alkyl, arylalkyl, and alkylaryl groups containing at least eight carbon atoms, and mixtures thereof; and quaternated hydroxyethylcellulose modified with groups containing at least one fatty chain, such as alkyl, arylalkyl, and alkylaryl groups containing at least eight carbon atoms, and mixtures thereof. For example, the alkyl groups in the above quaternated cellulose and hydroxyethylcellulose contain 8 to 30 carbon atoms. The aryl groups are selected from, for example, phenyl, benzyl, naphthyl, and anthryl groups.

[0120] A suitable amphoteric polymer containing at least one hydrophilic unit and at least one fatty chain unit may be, for example, a methacrylamidopropyltrimethylammonium chloride / acrylic acid / C8-C30 alkyl methacrylate copolymer, where the alkyl group is, for example, a stearyl group.

[0121] Preferred associative polymers include at least one hydrophilic unit which is an unsaturated carboxylic acid or a derivative thereof, and at least one hydrophobic unit which is a C8-C30 alkyl ester or oxyethylene-modified C8-C30 alkyl ester of an unsaturated carboxylic acid. The unsaturated carboxylic acid is preferably acrylic acid, methacrylic acid, or itaconic acid. Commercially available materials include those sold by Rohm & Haas as Aculy-22; by Noveon as Permulen TR1, Carbopol 2020, and Carbopol Ultrez-21; and by National Starch as Structure 2001 / 3001. Another preferred associative polymer is polyether polyurethane, commercially available by Rohm and Haas as Aculyn-44 / -46. A further preferred associative polymer is cellulose modified with a group containing at least one C8-C30 fatty acid chain, commercially available by Aqualon under the trade name Natrosol Plus Grade 330 CS.

[0122] Suitable non-associative crosslinked polycarboxylic acid polymers include, but are not limited to, crosslinked acrylic acid homopolymers, copolymers of acrylic acid or (meth)acrylic acid and C1-C6 alkyl acrylates (meth)acrylates, and mixtures thereof. Commercially available materials include those sold by Noveon as Carbopol 980 / 981 / 954 / 2984 / 5984, by 3V Sigma as Synthalen M / Synthalen L / Synthalen K, and by Rohm and Haas as Aculyn-33.

[0123] Polysaccharides include glucans, processed and unprocessed starches, amylose, amylopectin, glycogen, dextran, cellulose and their derivatives, mannan, xylan, lignin, araban, galactan, galacturonan, chitin, chitosan, glucuronoxylan, arabinoxylan, xyloglucan, glucomannan, pectinic acid and pectin, alginic acid and alginates, arabinogalactan, carrageenan, agar, glycosaminoglucan, acacia gum, and tragacanthoga. The polysaccharide may be selected from gum, gatch gum, karaya gum, carob gum, galactomannan, xanthan gum, gellan gum, wellan gum, scleroglucan, succinoglycan, and mixtures thereof; preferably selected from the group consisting of xanthan gum, gellan gum, wellan gum, scleroglucan or succinoglycan, and mixtures thereof; preferably selected from the group consisting of xanthan gum, succinoglycan, and mixtures thereof; preferably the polysaccharide is xanthan gum.

[0124] Other ingredients In addition to the above-mentioned components, the composition according to the present invention may contain further components to further enhance the properties of the composition, unless excluded from the claims. The composition may contain 7% or less, preferably 0.01 to 7%, of the other components based on the total weight of the composition.

[0125] Before mixing, other components may be present in the dye components and / or oxidizing components.

[0126] The dye component may contain 5% or less of the total weight of the dye component, preferably 0.01 to 5%.

[0127] The oxidizing component may contain 5% or less, preferably 0.01 to 5%, of other components relative to the total weight of the oxidizing component.

[0128] Other ingredients may be selected from additional anionic surfactants (e.g., sodium cetearyl sulfate), cationic surfactants, nonionic surfactants, amphoteric surfactants, zwitterionic surfactants, non-thickening viscosity (rheology) modifiers (e.g., sodium sulfate), fragrances, enzymes, dispersants, peroxide stabilizers (e.g., salicylic acid), antioxidants (e.g., ascorbic acid, sodium sulfite, and mixtures thereof), natural ingredients, ceramides, preservatives, opacifiers and pearlescent agents, and mixtures thereof. Further suitable ingredients listed above are not specified in the following description but are listed in the International Cosmetics Ingredient Dictionary and Handbook, (8th ed.; The Cosmetics, Toiletry, and Fragrance Association). In particular, Volume 2, Sections 3 (Chemical Classes) and 4 (Functions) are useful in identifying specific adjuvants to achieve specific or multipurpose purposes. Some of these ingredients are described below, but the disclosure is naturally not exhaustive.

[0129] The dye component may contain at least one antioxidant.

[0130] In one embodiment, the dye component contains 0.1 to 2%, preferably 0.5 to 1.5%, and preferably about 0.7%, of the total weight of the dye component as an antioxidant. The hair coloring composition may contain 0.0.5 to 1%, preferably 0.25 to 0.75%, and preferably about 0.35%, of the total weight of the dye component as an antioxidant.

[0131] The antioxidant may be selected from ascorbic acid, sodium sulfite, and mixtures thereof; preferably, the antioxidant is a mixture of ascorbic acid and sodium sulfite.

[0132] The dye component may contain at least one non-thickening viscosity modifier.

[0133] In one embodiment, the dye component contains 0.5 to 1.5%, preferably 0.7 to 1.3%, preferably about 1%, of a non-thickening viscosity modifier based on the total weight of the dye component. The hair coloring composition may contain 0.25 to 0.75%, preferably 0.35 to 0.65%, preferably about 0.5%, of a non-thickening viscosity modifier based on the total weight of the dye component.

[0134] A non-thickening viscosity modifier can be sodium sulfate.

[0135] The oxidizing component may also include at least one peroxide stabilizer.

[0136] In one embodiment, the oxidizing component contains 0.01 to 0.5%, preferably 0.05 to 0.2%, and preferably about 0.1%, of the total weight of the oxidizing component as a peroxide stabilizer. The hair coloring composition may contain 0.005 to 0.25%, preferably 0.025 to 0.1%, and preferably about 0.0.5%, of the total weight of the dye component as a peroxide stabilizer.

[0137] Salicylic acid can be used as a peroxide stabilizer.

[0138] The oxidizing component may also include additional surfactants, especially when the oxidizing component also includes fatty alcohols, such as cetearyl alcohol.

[0139] The oxidizing component may contain an additional surfactant of 0.7 to 1.7%, preferably 0.9 to 1.5%, and preferably about 1.2%, relative to the total weight of the oxidizing component. The hair coloring composition may contain an additional surfactant of 0.35 to 0.85%, preferably 0.45 to 0.75%, and preferably about 0.6%, relative to the total weight of the oxidizing component.

[0140] Additional surfactants may be selected from alkyl sulfates, polyoxyethylene ethers, and preferably sodium cetearyl sulfate.

[0141] Mixture of dye components and oxidizing components The hair coloring compositions described herein are obtained by mixing dye components and oxidizing components in a weight ratio of 3:1 to 1:3, preferably 2:1 to 1:2, preferably about 1:1. The hair coloring compositions correspond to ready-to-use compositions, i.e., compositions that are ready for immediate application to hair. The dye components and oxidizing components may be mixed immediately before applying the hair coloring composition to the hair.

[0142] The oxidizing components may include an oxidizing agent, a second buffered acid compound, a buffered alkali compound, a fatty alcohol (gel network), a solvent, optionally a second chelating agent, optionally a conditioning agent, and optionally a direct dye.

[0143] The oxidizing components may have a pH of 1.8 to 3.5, preferably 2 to 3.

[0144] The dye components may include a chelating agent, a first buffered acid compound, an anionic surfactant (gel network), a fatty alcohol (gel network), a nonionic surfactant (gel network), an alkalizing agent, a hair dye precursor, a coupler, a solvent, possibly a conditioning agent, possibly a direct dye, and possibly a thickening agent.

[0145] The dye component may have a pH of 8.5 to 10, preferably 9 to 10.

[0146] Instructions for use / Kit A kit for obtaining a hair coloring composition comprising at least one dye component, at least one oxidizing component, optionally at least one conditioning component, optionally a pretreatment composition and / or optionally a color refresher composition is described.

[0147] The dye and oxidizing components are listed above.

[0148] A kit for obtaining a hair coloring composition by mixing dye components and oxidizing components in a weight ratio of 3:1 to 1:3, preferably 2:1 to 1:2, preferably about 1:1, is provided (...).

[0149] The compounds / components correspond to the compounds / components listed above.

[0150] Retail oxidative hair dye compositions are typically sold as kits containing an oxidative dye precursor and an alkalizing agent, usually ammonia, in a suitable carrier (sometimes called "hair dye cream" for emulsions or "hair dye solution" for solutions) and an oxidizing component, usually hydrogen peroxide, containing an oxidizing agent (sometimes called "hydrogen peroxide cream" for emulsions or "hydrogen peroxide solution" for solutions). Consumers mix the dye and oxidizing components together immediately before use and apply it to their hair. Similarly, retail bleaching compositions are also typically sold as kits containing two or three individually packaged components in two or three separate containers. The first component contains an ammonium ion source (e.g., ammonia), the second component contains an oxidizing agent, and the third (optional) component contains the second oxidizing agent. The bleaching composition is obtained by mixing the above-mentioned compositions immediately before use.

[0151] In the professional hair salon market, hair dye components, oxidizing components, and / or bleaching compositions are typically supplied separately, allowing professionals to select their preferred combination.

[0152] After combining the mixture for a few minutes (to ensure even application to all hair), leave the oxidative dye composition on the hair in sufficient quantity for the dyeing to occur (usually 2-60 minutes, typically 30-45 minutes). The consumer or salon professional then rinses the hair thoroughly with water and / or shampoo and dries it. The hair is then observed to have changed from its original color to the desired color.

[0153] For both retail and professional applications, optional conditioning agents (conditioning components) can be provided. In this embodiment, all three compositions can be mixed immediately before use and applied together, or the conditioning agent (after an optional rinsing step) can be applied as a post-treatment immediately after the oxidation dye composition or bleaching composition obtained from the mixture in the other container.

[0154] The kit may also include a pretreatment composition and / or a color refresher composition as an optional component. Such a color refresher composition comprises at least one pre-formed dye and can be applied to the hair immediately after oxidative coloring, i.e., from 1 minute after application of oxidative hair dye or bleach to 60 days after application. These color refresher compositions can be used to enhance the initial color obtained or to strengthen the color during the wash and style cycle until the next oxidative coloring or bleaching event.

[0155] Packaging and dispensing equipment The present invention can be provided in a wide variety of packaging and / or dispensing devices. These dispensing devices may be in the form of separate devices that can be used independently or in combination with each other. Typically, hair coloring or bleaching compositions are contained in separate single or multi-compartment containers so that the compositions can be stored separately before use. The compositions are then mixed together by a mixing means, subsequently dispensed from the device, and applied to the consumer's hair by an application means.

[0156] The most common packaging apparatus that can be used in the present invention involves storing the developer in a container such as a bottle, tube, aerosol, or sachet, and separately storing the dye lotion in an additional compartment within the developer container or in another container which may be identical, such as a binary sachet or aerosol system, or different, such as a bottle and tube system. Any combination may be used, depending on the type of composition being stored, i.e., whether the composition is concentrated or diluted. Consumers or hair salon professionals may mix the oxidizing and dyeing components by some means. This may simply involve using a mixing bowl in which the compositions are mixed after they have been dispensed, preferably using a mixing means such as a tool. Alternatively, it may involve adding one of the compositions to the container of the other composition (typically the dye composition is added to the oxidizing composition), followed by manual shaking or mixing. Another system involves manual mixing in a single container or in separate and / or additional containers, following the perforation or movement of a seal located between separate compartments of the dye and oxidizing compositions within that container or sachet.

[0157] The apparatus described above in this specification may also be used in combination with product dispensers and / or application tools to assist in the application of the product to hair. Here again, these apparatus may be of a very simple type, such as a nozzle attached to one of the containers, or another applicator device such as a comb or brush. Such combs and brushes may be adapted to achieve a specific effect, whether it be quick and even coverage or root / hairline touch-up, or highlights or streaks. Alternatively, one of the containers or a group of containers may be equipped with a comb attached alongside or in place of a dispensing nozzle, thereby dispensing the product through hollow teeth and dispensing openings located on the teeth of the comb. The teeth of the comb may have one or more openings along the teeth, which can improve the application of the product and especially uniformity from root to tip. Product dispensing can be achieved by mechanical pressure applied to the container, e.g., a delaminating bottle, or by either of the mechanisms described above. The comb may be provided in the container to facilitate easy application and may be positioned vertically (a so-called verticomb) or at an angle so that the consumer can access all areas. Since all devices are designed to be compatible, a range of different tools for hair application can be provided to consumers.

[0158] The application apparatus may also include devices that assist in achieving specific effects such as highlighting, such as highlight combs, brushes and tools, foils and highlight caps. Highlighting apparatuses may also be used that include hinge devices used to hold a certain amount of composition and then apply that composition to predetermined / selected strands of hair.

[0159] Hair dyeing methods In a third embodiment, the present invention relates to a method for treating hair with a composition, a) A step of preparing the dye components described herein, b) A step of preparing the oxidizing components described herein, c) A step of mixing oxidizing components and dyeing components to obtain the hair coloring composition described herein, d) A step of applying a hair coloring composition for oxidative dyeing of keratin fibers to hair, e) The step of leaving the composition on the hair for 2 to 60 minutes, f) The next step is to rinse the composition off the hair. This includes methods.

[0160] Hair coloring compositions can be obtained by mixing dye and oxidizing components immediately before use. A sufficient amount of the mixture, generally 60 to 250 grams, is applied to the hair depending on the amount of hair. During such preparation, the composition is applied to the hair to be colored and remains in contact with the hair for a time effective in coloring the hair. Typically, the hair coloring composition is allowed to act on the hair at a temperature in the range of 15 to 50°C for 2 to 60°C, preferably 10 to 30°C, preferably 20 minutes. Afterwards, the hair is rinsed with water to remove the composition and dried. If necessary, the hair is washed with shampoo and rinsed with, for example, water or a weakly acidic solution, such as a citric acid or tartaric acid solution, and dried. Separate conditioning products may also be provided in some cases.

[0161] The method may further include waiting for a certain period, typically 2 to 60 minutes, and then rinsing the hair coloring composition off the hair. The hair coloring composition can be applied to the hair by an applicator bottle or brush. It can be used on the entire head or partially on a single strand of hair (highlight application), and common highlight applicator foils, caps and special applicators can be used, but freehand techniques such as balayage are also possible with a brush and / or comb. The composition can also be applied as a mousse by a manual spray, a pressurized container or aerosol mousse. The composition may also be dispensed in solid form, to which water is added to produce an oxidizing agent and form a thick vehicle suitable for hair coloring. [Examples]

[0162] The following examples illustrate hair coloring compositions in accordance with this disclosure. The examples and embodiments described herein are for illustrative purposes only, and it is understood that various modifications or changes can be suggested to those skilled in the art without departing from the scope of this disclosure.

[0163] Hair removal methods In all examples, the oxidizing component and the dye component are mixed together in a bowl or bottle in a 1:1 ratio. The compositions are applied to the model's hair so that one composition is applied to one side and the other to the other side. The application is carried out in parallel by two stylists to eliminate the effect of time differences on the final result. The compositions are left to develop for 20 minutes, then rinsed off completely. The hair is then shampooed, blow-dried, and dried.

[0164] Evaluation of uniformity (color consistency) from root to tip. The evaluation of uniformity from root to tip is performed by a skilled and calibrated stylist. In the first step, the roots, middle, and tips are compared to the roots colored with the first composition compared to the roots colored with the second composition. In the second step, the model's hair is folded so that the roots are adjacent to both sides of the tips in order to simultaneously compare the color difference of different hair sections for both compositions. In the second step, the evaluation is performed using a scale from "a" (the first composition is clearly worse than the second composition) to "g" (the first composition is clearly better than the second composition).

[0165] Hair coloring compositions A and B To provide the hair coloring composition A according to the present invention, dye component A1 and oxidizing component A2, shown in Tables 1 and 2 below, are prepared and mixed in a weight ratio of 1:1.

[0166] In addition, dye component B1 and oxidizing component B2, shown in Tables 1 and 2 below, are prepared and mixed in a 1:1 weight ratio to provide reference hair coloring composition B.

[0167] The percentages in Tables 1 and 2 are based on the total weight of the components. TIFF0007870768000001.tif248170TIFF0007870768000002.tif120170

[0168] Hair coloring compositions C and D To provide the hair coloring composition C according to the present invention, dye component C1 and oxidizing component C2, shown in Tables 3 and 4 below, are prepared and mixed in a weight ratio of 1:1.

[0169] In addition, dye component D1 and oxidizing component D2, shown in Tables 3 and 4 below, are prepared and mixed in a weight ratio of 1:1 to provide the reference hair coloring composition D.

[0170] The percentages in Tables 3 and 4 are based on the total weight of the components. TIFF0007870768000003.tif248170TIFF0007870768000004.tif98170

[0171] result The performance of each hair coloring composition is evaluated on two models, and the uniformity of coloring (evenness from root to tip) is assessed by a professional hairdresser. The hairdresser compares the uniformity of coloring of the hair coloring composition according to the present invention (A or C) to a reference hair coloring composition (B or D) using a scale: a (clearly bad), b (noticeably bad), c (somewhat bad), d (equivalent), e (somewhat good), f (noticeably good), and g (clearly good). In both cases, for each model, the hairdresser rates the uniformity of coloring of the hair coloring composition according to the present invention (A or C) as noticeably good (f) compared to the reference hair coloring composition (B or D).

[0172] In addition, the hair coloring composition (A or C) according to the present invention is more brilliant and exhibits a significantly stronger color overall compared to the reference hair coloring composition (B or D).

[0173] Hair coloring composition E To provide the hair coloring composition E according to the present invention, dye component E1 and oxidizing component E2, shown in Tables 5 and 6 below, are prepared and mixed in a weight ratio of 1:1.

[0174] The percentages in Tables 5 and 6 are based on the total weight of the components. TIFF0007870768000005.tif227170TIFF0007870768000006.tif120170

[0175] pH adjustment when applied to hair The hair coloring composition E obtained by mixing the dye component E1 and the oxidizing component E2 according to the present invention is particularly suitable for application to hair because the pH of the hair coloring composition changes only from a slightly alkaline pH (at the time of application) to a slightly acidic pH (after 20 minutes), as shown in Table 7 below. Maintaining a gradual decrease in the pH of the hair coloring composition from a slightly alkaline pH to a slightly acidic pH is particularly desirable. This is because a slightly alkaline pH allows for the desired color development, while a decrease in pH to the slightly acidic range allows for less damage and less excessive dye adhesion to damaged hair. TIFF0007870768000007.tif77170

[0176] To demonstrate the difference in hair pH, the inventors tested various buffering systems of the reference (aqueous oxidizing components) by mixing dye component E1 with four different oxidizing components, namely component E2A (the present invention) and components E2B-D (comparative), as shown in Table 8 below, before applying it to untreated hair (without pretreatment with bleach). TIFF0007870768000008.tif87170

[0177] The results obtained are shown in Table 9 below. TIFF0007870768000009.tif205170

[0178] As shown in the data in Table 9 above, only composition EA(E1+E2A) (the present invention) provides a satisfactory pH on the hair, i.e., a slightly alkaline pH at the time of application to a slightly acidic pH 20 minutes later, thereby working with the chelating agent to provide the desired color and intensity, while maintaining natural strand-to-strand variation along with increased root-to-tip uniformity and less hair damage.

[0179] The inventors also tested composition EA(E1+E2A) on bleached hair. The results are shown in Table 10 below. TIFF0007870768000010.tif77170

[0180] As shown by the data in Tables 9 and 10 above, the effect of composition EA(E1+E2A) (the present invention) does not change significantly when applied to untreated hair and bleached hair.

[0181] Hair coloring composition F To provide the hair coloring composition F according to the present invention, dye component F1 and oxidizing component F2, shown in Tables 11 and 12 below, are prepared and mixed in a weight ratio of 1:1.

[0182] The percentages in Tables 11 and 12 are based on the total weight of the components. TIFF0007870768000011.tif255165TIFF0007870768000012.tif45170TIFF0007870768000013.tif120170

[0183] The hair coloring composition F obtained by mixing the dye component F1 and the oxidizing component F2 according to the present invention is particularly suitable for application to hair because, as previously demonstrated with hair coloring composition F, the pH of the composition only changes from a slightly alkaline pH (at the time of application) to a slightly acidic pH (after 20 minutes).

[0184] Embodiment Embodiment 001: A kit for obtaining a hair coloring composition by mixing a dye component and an oxidizing component in a weight ratio of 3:1 to 1:3.

[0185] E002: A kit according to Embodiment 001, in which dye components and oxidizing components are mixed in a weight ratio of 2:1 to 1:2.

[0186] E003: A kit according to E001-002, in which dye and oxidizing components are mixed in a weight ratio of approximately 1:1.

[0187] E004: A kit containing dye components with a pH of 8.5-10, as per E001-003.

[0188] E005: A kit containing dye components with a pH of 9-10, as per E001-004.

[0189] E006: A kit containing oxidizing components with a pH of 1.8-3.5, as per E001-005.

[0190] E007: A kit according to E001-006, with an oxidizing component having a pH of 2-3.

[0191] E008: A kit according to E001-007, in which the dye component contains at least one alkalizing agent.

[0192] E009: A kit according to E008, in which the dye component contains 0.2-4% alkalizing agent relative to the total weight of the dye component.

[0193] E010: A kit according to E008-009, in which the dye component contains 0.2-2% alkalizing agent relative to the total weight of the dye component.

[0194] E011: A kit according to E008-010, in which the dye component contains 0.2-1% alkalizing agent relative to the total weight of the dye component.

[0195] E012: A kit according to E008-011, in which the dye component contains 0.6-0.9% alkalizing agent relative to the total weight of the dye component.

[0196] E013: A kit according to E008-012, wherein the alkalizing agent is selected from ammonia, alkanolamines, alkali metal and ammonium hydroxides, alkali metal and ammonium carbonates, and mixtures thereof.

[0197] E014: A kit according to E008-013, in which the alkalizing agent is selected from ammonia, monoethanolamine, sodium hydroxide, and mixtures thereof.

[0198] E015: A kit according to E008-014, in which the alkalizing agent is a mixture of monoethanolamine and sodium hydroxide.

[0199] E016: A kit according to E001-015, in which the dye component contains at least one chelating agent.

[0200] E017: A kit according to E016, in which the dye component contains 1.2-1.8% of a chelating agent relative to the total weight of the dye component.

[0201] E018: A kit according to E016-017, in which the dye component contains 1.2-1.6% of a chelating agent relative to the total weight of the dye component.

[0202] E019: A kit according to E016-018, in which the dye component contains approximately 1.4% of the chelating agent relative to the total weight of the dye component.

[0203] E020: A kit according to E016-019, in which the chelating agent is selected from carboxylic acids, phosphonic acids, polyphosphates, their salts, and mixtures thereof.

[0204] E021: A kit based on E016-020, in which the chelating agent is selected from aminocarboxylic acids.

[0205] E022: A kit according to E016-021, in which the chelating agent is selected from DTPA, EDDS, EDGA, HPDS, GADS, EDDG, HPDDS, EDTA, EDC, EDDHA, DDS, HBED, their salts, and mixtures thereof.

[0206] E023: A kit according to E016-022, in which the chelating agent is selected from EDDS, EDTA, their salts, and mixtures thereof.

[0207] E024: A kit according to E016-023, where the chelating agent is a mixture of EDDS and EDTA.

[0208] E025: A kit according to E001-024, in which the dye component contains at least one buffered acid compound.

[0209] E026: A kit according to E025, containing a buffered acid compound as the dye component at a concentration of 0.01-0.6%.

[0210] E027: A kit according to E025-026, in which the dye component contains 0.05-0.45% of a buffered acid compound relative to the total weight of the dye component.

[0211] E028: A kit according to E025-027, in which the dye component contains 0.15-0.45% of a buffered acid compound relative to the total weight of the dye component.

[0212] E029: A kit based on E025-028, where the buffered acid compound is citric acid.

[0213] E030: A kit according to E001-029, wherein the dye component contains at least one anionic surfactant.

[0214] E031: A kit according to E030, in which the dye component contains 0.2-1% anionic surfactant relative to the total weight of the dye component.

[0215] E032: A kit according to E030-031, in which the dye component contains 0.5-0.8% anionic surfactant relative to the total weight of the dye component.

[0216] E033: A kit according to E030-032, in which the dye component contains 0.5-0.65% anionic surfactant relative to the total weight of the dye component.

[0217] E034: A kit according to E030-033, in which the anionic surfactant is selected from C14-C30 alkyl phosphates, C14-C30 alkyl ether phosphates, and mixtures thereof.

[0218] E035: A kit according to E030-034, in which the anionic surfactant is selected from C14-C18 alkyl phosphates, C14-C18 alkyl ether phosphates, and mixtures thereof.

[0219] E036: A kit according to E030-035, in which the anionic surfactant is a mixture of dicetyl phosphate and ceteth-10 phosphate.

[0220] E037: A kit according to E001-036, containing at least one fatty alcohol as a dye component.

[0221] E038: A kit according to E037, wherein the dye component contains at least one fatty alcohol in an amount of 1.6–2.5% relative to the total weight of the dye component.

[0222] E039: A kit according to E037-038, wherein the dye component contains at least one fatty alcohol in an amount of 1.6-2.3% relative to the total weight of the dye component.

[0223] E040: A kit according to E037-039, wherein the dye component contains at least one fatty alcohol in an amount of 1.65-2.1% relative to the total weight of the dye component.

[0224] E041: A kit according to E037-040, in which fatty alcohols are selected from linear or branched C14-C30 fatty alcohols.

[0225] E042: A kit according to E037-041, in which fatty alcohols are selected from cetyl alcohol, stearyl alcohol, cetostearyl alcohol, cetearyl alcohol, behenyl alcohol, and mixtures thereof.

[0226] E043: A kit according to E037-042, where the fatty alcohol is cetearyl alcohol.

[0227] E044: A kit according to E001-043, wherein the dye component contains at least one nonionic surfactant.

[0228] E045: A kit according to E044, in which the dye component contains 0.1-0.5% of a nonionic surfactant relative to the total weight of the dye component.

[0229] E046: A kit according to E044-045, in which the dye component contains 0.2-0.3% of a nonionic surfactant relative to the total weight of the dye component.

[0230] E047: A kit according to E044-046, in which the dye component contains approximately 0.25% nonionic surfactant relative to the total weight of the dye component.

[0231] E048: A kit according to E044-047, in which the nonionic surfactant is selected from polyoxyethylene C14-C30 alkyl ethers.

[0232] E049: A kit according to E044-048, wherein the nonionic surfactant is selected from polyoxyethylene C14-C30 alkyl ethers containing one or more polyethylene oxide chains having at least 50.

[0233] E050: A kit according to E044-049, in which the nonionic surfactant is selected from Steareth-20; Steareth-100, Steareth-150, Steareth-200, and mixtures thereof.

[0234] E051: A kit according to E044-050, in which the nonionic surfactant is Steareth-200.

[0235] E052: A kit according to E001-051, wherein the dye component comprises at least one oxidized hair dye precursor and at least one coupler.

[0236] E053: A kit according to E052, containing oxidized hair dye precursors and couplers with a dye component of 20% or less.

[0237] E054: A kit according to E052-053, containing 0.002-20% oxidized hair dye precursors and couplers as dye components.

[0238] E055: A kit according to E052-054, containing dye components of 0.002-10% oxidized hair dye precursors and couplers.

[0239] E056: A kit according to E052-055, containing 0.02-4% oxidized hair dye precursor and coupler as the dye component.

[0240] E057: A kit according to E052-056, containing 0.4-2% oxidized hair dye precursor and coupler as the dye component.

[0241] E058: Oxidized hair dye precursors include toluene-2,5-diamine, p-phenylenediamine, N-phenyl-p-phenylenediamine, N,N-bis(2-hydroxyethyl)-p-phenylenediamine, 2-hydroxyethyl-p-phenylenediamine, hydroxypropyl-bis-(N-hydroxyethyl-p-phenylenediamine), 2-methoxymethyl-p-phenylenediamine, 2-(1,2-dihydroxyethyl)-p-phenylenediamine, and 2,2'-(2-(4-aminophenylamine). (no)ethylazandiyl)diethanol, 2-(2,5-diamino-4-methoxyphenyl)propane-1,3-diol, 2-(7-amino-2H-benzo[b][1,4]oxazine-4(3H)-yl)ethanol, 2-chloro-p-phenylenediamine, p-aminophenol, p-(methylamino)phenol, 4-amino-m-cresol, 6-amino-m-cresol, 5-ethyl-o-aminophenol, 2-methoxy-p-phenylenediamine, 2,2'-methylenebis-4-amine Nophenol, 2,4,5,6-tetraaminopyrimidine, 2,5,6-triamino-4-pyrimidinol, 1-hydroxyethyl-4,5-diaminopyrazole sulfate, 4,5-diamino-1-methylpyrazole, 4,5-diamino-1-ethylpyrazole, 4,5-diamino-1-isopropylpyrazole, 4,5-diamino-1-butylpyrazole, 4,5-diamino-1-pentylpyrazole, 4,5-diamino-1-benzylpyrazole, 2,3-diamino-6,7-dihydroxypyrazole Kits according to E052-057, selected from lazolo[1,2-a]pyrazole-1(5H)-ondimethosulfonate, 4,5-diamino-1-hexylpyrazole, 4,5-diamino-1-heptylpyrazole, methoxymethyl-1,4-diaminobenzene, N,N-bis(2-hydroxyethyl)-N-(4-aminophenyl)-1,2-diaminotan, 2-[(3-aminopyrazolo[1,5-a]pyridine-2-yl)oxy]ethanol hydrochloride, their salts, and mixtures thereof.

[0242] E059: Coupler contains resorcinol, 4-chlororesorcinol, 2-chlororesorcinol, 2-methylresorcinol, 4,6-dichlorobenzene-1,3-diol, 2,4-dimethylbenzene-1,3-diol, m-aminophenol, 4-amino-2-hydroxytoluene, 2-methyl-5-hydroxyethylaminophenol, 3-amino-2,6-dimethylphenol, 3-amino-2,4-dichlorophenol, 5-amino-6-chloro-o-cresol, 5-amino-4-chloro-o-cresol, 6-H Droxybenzomorpholine, 2-amino-5-ethylphenol, 2-amino-5-phenylphenol, 2-amino-5-methylphenol, 2-amino-6-methylphenol, 2-amino-5-ethoxyphenol, 5-methyl-2-(methylamino)phenol, 2,4-diaminophenoxyethanol, 2-amino-4-hydroxyethylaminoanisole, 1,3-bis-(2,4-diaminophenoxy)-propane, 2,2'-(2-methyl-1,3-phenylene)bis(azandiyl)diethanol, Benzene-1 ,3-diamine, 2,2'-(4,6-diamino-1,3-phenylene)bis(oxy)diethanol, 3-(pyrroridine-1-yl)aniline, 1-(3-(dimethylamino)phenyl)urea, 1-(3-aminophenyl)urea, 1-naphthol, 2-methyl-1-naphthol, 1,5-naphthalenediol, 2,7-naphthalenediol or 1-acetoxy-2-methylnaphthalene, 4-chloro-2-methylnaphthalene-1-ol, 4-methoxy-2-methylnaphthalene-1-ol, 2,6-dihydroxy-3,4-dimethyl Tylpyridine, 2,6-dimethoxy-3,5-pyridinediamine, 3-amino-2-methylamino-6-methoxypyridine, 2-amino-3-hydroxypyridine, 2,6-diaminopyridine, pyridine-2,6-diol, 5,6-dihydroxyindole, 6-hydroxyindole, 5,6-dihydroxyindoline, 3-methyl-1-phenyl-1H-pyrazole-5(4H)-one, 1,2,4-trihydroxybenzene, 2-(benzo[d][1,3]dioxol-5-ylamino)ethanol, and mixtures thereof A kit selected from E052-058.

[0243] E060: A kit according to E001-059, in which the dye component contains at least one solvent.

[0244] E061: A kit according to E060, wherein the dye component contains at least 50% solvent relative to the total weight of the dye component.

[0245] E062: A kit according to E060-061, wherein the dye component contains at least 60% solvent relative to the total weight of the dye component.

[0246] E063: A kit according to E060-062, wherein the dye component contains at least 70% solvent relative to the total weight of the dye component.

[0247] E064: A kit according to E060-063, in which the solvent is selected from water or a mixture of water and at least one organic solvent.

[0248] E065: A kit according to E064, in which the organic solvent is selected from C1-C4 lower alkanols, aromatic alcohols, polyols and polyol ethers, propylene carbonates, and mixtures thereof.

[0249] E066: A kit according to E064-065, in which the organic solvent is selected from ethanol, propanol, isopropanol, glycerol, 1,2-propylene glycol, hexylene glycol, ethoxydiglycol, and mixtures thereof.

[0250] E067: A kit similar to E064-066, where the organic solvent is propylene glycol.

[0251] E068: A kit according to E060-067, where the solvent is a mixture of water and at least one organic solvent.

[0252] E069: A kit according to E060-068, where the solvent is a mixture of water and propylene glycol.

[0253] Kit according to E001 - 069, in which the dye component contains at least one thickening agent.

[0254] Kit according to E070, in which the dye component contains at least 0.1% thickening agent based on the total weight of the dye component.

[0255] Kit according to E070 - 071, in which the dye component contains 0.1% - 2.0% thickening agent based on the total weight of the dye component.

[0256] Kit according to E070 - 072, in which the dye component contains approximately 0.15% thickening agent based on the total weight of the dye component.

[0257] Kit according to E070 - 073, in which the thickening agent is selected from associative polymers, polysaccharides, non - associative polycarboxylic acid polymers, and mixtures thereof.

[0258] Kit according to E070 - 074, in which the thickening agent is selected from polysaccharides.

[0259] Kit according to E070 - 075, in which the thickening agent is xanthan gum.

[0260] Kit according to E001 - 076, in which the dye component contains at least one radical scavenger.

[0261] Kit according to E001 - 077, in which the dye component contains at least one conditioning agent.

[0262] Kit according to E001 - 078, in which the dye component contains at least one direct dye.

[0263] Kit according to E079, in which the dye component contains less than 4% direct dye based on the total weight of the dye component.

[0264] Kit according to E001 - 080, in which the dye component contains at least one other component.

[0265] E082: A kit according to E081, wherein the dye component contains other components of 7% or less based on the total weight of the dye component.

[0266] E083: A kit according to E081 - 082, wherein the dye component contains other components of 0.01 - 7% based on the total weight of the dye component.

[0267] E084: A kit according to E081 - 083, wherein the other components are selected from an additional anionic surfactant, cationic surfactant, non - ionic surfactant, amphoteric surfactant, zwitterionic surfactant, non - thickening viscosity (rheology) modifier, fragrance, enzyme, dispersant, peroxide stabilizer, antioxidant, natural ingredient, ceramide, preservative, opacifier and pearlescent agent, and mixtures thereof.

[0268] E085: A kit according to E001 - 084, wherein the dye component contains at least one non - thickening viscosity (rheology) modifier.

[0269] E086: A kit according to E001 - 085, wherein the dye component contains at least one additional anionic surfactant.

[0270] E087: A kit according to E001 - 086, wherein the dye component contains at least one antioxidant.

[0271] E088: A kit according to E001 - 087, wherein the oxidizing component contains at least one oxidizing agent.

[0272] E089: A kit according to E088, wherein the oxidizing component contains an oxidizing agent of 1 - 3% based on the total weight of the oxidizing component.

[0273] E090: A kit according to E088 - 089, wherein the oxidizing component contains an oxidizing agent of 1.2 - 2.4% based on the total weight of the oxidizing component.

[0274] E091: A kit according to E088 - 090, wherein the oxidizing component contains an oxidizing agent of 1.5 - 2% based on the total weight of the oxidizing component.

[0275] E092: A kit according to E088-091, in which the oxidizing component is selected from water-soluble inorganic peroxides that can produce hydrogen peroxide in an aqueous solution.

[0276] E093: A kit according to E088-092, in which the oxidizing component is selected from hydrogen peroxide, inorganic alkali metal peroxides, organic peroxides, inorganic perhydrate salt bleaching compounds, and mixtures thereof.

[0277] E094: A kit according to E088-093, in which the oxidizing component is selected from hydrogen peroxide, persulfates, and mixtures thereof.

[0278] E095: A kit based on E088-094, where the oxidizing component is hydrogen peroxide.

[0279] E096: A kit according to E001-095, in which the oxidizing component contains at least one buffered acid compound.

[0280] E097: A kit according to E096, in which the oxidizing component contains 0.15-0.5% of a buffered acid compound relative to the total weight of the oxidizing component.

[0281] E098: A kit according to E096-097, in which the oxidizing component contains 0.17-0.4% of buffered acidic compounds relative to the total weight of the oxidizing component.

[0282] E099: A kit according to E096-098, in which the oxidizing component contains 0.17-0.3% of buffered acidic compounds relative to the total weight of the oxidizing component.

[0283] E100: A kit based on E096-099, where the buffered acid compound is phosphoric acid.

[0284] E101: A kit according to E001-100, in which the oxidizing component contains at least one buffered alkali compound.

[0285] Kit according to E101, wherein the oxidizing component contains 0.2 to 0.6% of a buffer alkali compound based on the total weight of the oxidizing component.

[0286] Kit according to E101 - 102, wherein the oxidizing component contains 0.2 to 0.5% of a buffer alkali compound based on the total weight of the oxidizing component.

[0287] Kit according to E101 - 103, wherein the oxidizing component contains 0.2 to 0.35% of a buffer alkali compound based on the total weight of the oxidizing component.

[0288] Kit according to E101 - 104, wherein the buffer alkali compound is disodium phosphate.

[0289] Kit according to E001 - 105, wherein the oxidizing component contains at least one fatty alcohol.

[0290] Kit according to E106, wherein the oxidizing component contains 1.6 to 3.4% of at least one fatty alcohol based on the total weight of the oxidizing component.

[0291] Kit according to E106 - 107, wherein the oxidizing component contains 1.8 to 3.2% of at least one fatty alcohol based on the total weight of the oxidizing component.

[0292] Kit according to E106 - 108, wherein the oxidizing component contains 2 to 3% of at least one fatty alcohol based on the total weight of the oxidizing component.

[0293] Kit according to E106 - 109, wherein the fatty alcohol is selected from linear or branched C14 - C30 fatty alcohols.

[0294] Kit according to E106 - 110, wherein the fatty alcohol is selected from cetyl alcohol, stearyl alcohol, cetostearyl alcohol, ceteareth alcohol, behenyl alcohol, and mixtures thereof.

[0295] E112: A kit based on E106-111, where the fatty alcohol is cetearyl alcohol.

[0296] E113: A kit according to E001-112, in which the oxidizing component contains at least one chelating agent.

[0297] E114: A kit according to E113, containing an oxidizing component and a chelating agent at a concentration of 0.1% or less relative to the total weight of the oxidizing component.

[0298] E115: A kit according to E113-114, in which the oxidizing component contains 0.005-0.05% of the chelating agent relative to the total weight of the oxidizing component.

[0299] E116: A kit according to E113-115, in which the oxidizing component contains approximately 0.01% of the chelating agent relative to the total weight of the oxidizing component.

[0300] E117: A kit containing E113-116, with etidronic acid as the chelating agent.

[0301] E118: A kit according to E001-117, containing at least one solvent as an oxidizing component.

[0302] E119: A kit according to E118, wherein the oxidizing component contains at least 50% solvent relative to the total weight of the oxidizing component.

[0303] E120: A kit according to E118-119, wherein the oxidizing component contains at least 60% solvent relative to the total weight of the oxidizing component.

[0304] E121: A kit according to E118-120, wherein the oxidizing component contains at least 70% solvent relative to the total weight of the oxidizing component.

[0305] E122: A kit according to E118-121, in which the solvent is selected from water or a mixture of water and at least one organic solvent.

[0306] E123: A kit according to E118-122, in which the organic solvent is selected from C1-C4 lower alkanols, aromatic alcohols, polyols and polyol ethers, propylene carbonates, and mixtures thereof.

[0307] E124: A kit according to E118-123, in which the organic solvent is selected from ethanol, propanol, isopropanol, glycerol, 1,2-propylene glycol, hexylene glycol, ethoxydiglycol, and mixtures thereof.

[0308] E125: A kit based on E118-124, where the organic solvent is propylene glycol.

[0309] E126: A kit based on E118-125, where water is the solvent.

[0310] E127: A kit according to E001-0126, containing at least one conditioning agent as an oxidizing component.

[0311] E128: A kit according to E127, containing a conditioning agent in which the oxidizing component is 40% or less of the total weight of the oxidizing component.

[0312] E129: A kit according to E127-128, containing an oxidizing component and a conditioning agent at a concentration of 0.1-40% relative to the total weight of the oxidizing component.

[0313] E130: A kit according to E127-129, containing an oxidizing component and a conditioning agent at a concentration of 0.2-30% relative to the total weight of the oxidizing component.

[0314] E131: A kit containing oxidizing components, with conditioning agents at a concentration of 0.4-20% relative to the total weight of the oxidizing components, as per E127-130.

[0315] E132: A kit according to E127-131, containing an oxidizing component and a conditioning agent at a concentration of 0.4% to 10% relative to the total weight of the oxidizing component.

[0316] E133: A kit containing oxidizing agents at approximately 3.3% relative to the total weight of the oxidizing agents, as per E127-132.

[0317] E134: A kit according to E127-133, in which the conditioning agent is selected from polyhydric alcohols, silicone materials, aminosilicones, fatty alcohols, polymer resins, polyol carboxylic acid esters, cationic polymers, cationic surfactants, insoluble oils, oil-derived materials, mineral oils, and mixtures thereof.

[0318] E135: A kit containing mineral oil as a conditioning agent, similar to E127-134.

[0319] E136: Kit according to E001-135, the oxidizing component contains at least one direct dye.

[0320] E137: A kit according to E36 containing direct dyes with an oxidizing component of less than 4% of the total weight of the oxidizing component.

[0321] E138: A kit according to E001-137, in which the oxidizing component contains at least one thickening agent.

[0322] E139: A kit according to E138, wherein the oxidizing component contains a thickener at a concentration of 0.1% or less relative to the total weight of the oxidizing component.

[0323] E140: A kit according to E138-139, in which the oxidizing component contains 0.001% to 0.1% of a thickener relative to the total weight of the oxidizing component.

[0324] E141: A kit according to E138-140, in which the thickener is selected from associative polymers, polysaccharides, non-associative polycarboxylic acid polymers, and mixtures thereof.

[0325] E142: A kit according to E138-141, in which the thickener is selected from associative polymers.

[0326] E143: A kit according to E001-142, in which the oxidizing component contains at least one other component.

[0327] E144: A kit according to E143, in which the oxidizing component is present in an amount of 5% or less of other components relative to the total weight of the oxidizing component.

[0328] E145: A kit according to E143-144, in which the oxidizing component contains 0.01-5% of other components relative to the total weight of the oxidizing component.

[0329] E146: Kit according to E143-145, in which other ingredients are selected from additional anionic, cationic, nonionic, amphoteric or zwitterionic surfactants, non-thickening viscosity (rheology) modifiers, fragrances, enzymes, dispersants, peroxide stabilizers, antioxidants, natural ingredients, ceramides, preservatives, opacifiers and pearlescent agents, and mixtures thereof.

[0330] E147: A kit according to E001-146, in which the oxidizing component contains at least one peroxide stabilizer.

[0331] A hair coloring composition obtained by mixing dye components and oxidizing components according to E148:E001~147, having a pH of 6.8~8, preferably 7.2~7.99 (immediately after mixing).

[0332] E149: A hair coloring composition according to E148, wherein the composition comprises at least one alkalizing agent.

[0333] E150: A hair coloring composition according to E149, wherein the composition contains 0.1-2% of an alkalizing agent relative to the total weight of the composition.

[0334] E151: A hair coloring composition according to E148-150, wherein the composition comprises at least one oxidizing agent.

[0335] E152: A hair coloring composition according to E151, wherein the composition contains 0.5 to 1.5% of an oxidizing agent relative to the total weight of the composition.

[0336] E153: A hair coloring composition according to E148-152, wherein the composition comprises at least one chelating agent.

[0337] E154: A hair coloring composition according to E153, wherein the composition contains 0.6 to 0.9% of a chelating agent relative to the total weight of the composition.

[0338] E155: A hair coloring composition according to E148-154, wherein the composition comprises at least one first buffered acid compound.

[0339] E156: A hair coloring composition according to E155, wherein the composition contains 0.05 to 0.3% of a first buffered acid compound relative to the total weight of the composition.

[0340] E157: A hair coloring composition according to E155-156, wherein the first buffered acid compound is citric acid.

[0341] E158: A hair coloring composition according to E148-157, wherein the composition comprises at least one second buffered acid compound.

[0342] E159: A hair coloring composition according to E158, wherein the composition contains 0.075 to 0.25% of a second buffered acid compound relative to the total weight of the composition.

[0343] E160: A hair coloring composition according to E158-159, wherein the second buffered acid compound is phosphoric acid.

[0344] E161: A hair coloring composition according to E148-160, wherein the composition comprises at least one buffered alkali compound.

[0345] E162: A hair coloring composition according to E161, wherein the composition contains 0.1 to 0.3% of a buffered alkali compound relative to the total weight of the composition.

[0346] E163: A hair coloring composition according to E161-162, wherein the buffered alkali compound is disodium phosphate.

[0347] E164: A hair coloring composition according to E148-163, comprising a gel network thickening agent system.

[0348] E165: A hair coloring composition according to E164, wherein the gel network thickening agent system comprises at least one anionic surfactant, at least one fatty alcohol, and at least one nonionic surfactant.

[0349] E166: A hair coloring composition according to E164-165, wherein the composition contains 1.2-4.5% of a gel network system relative to the total weight of the composition.

[0350] E167: A hair coloring composition according to E148-166, wherein the composition comprises at least one oxidizing hair dye precursor and at least one coupler.

[0351] E168: A hair coloring composition according to E167, wherein the composition comprises an oxidized hair dye precursor and a coupler in an amount of 10% or less in total weight of the composition.

[0352] E169: A hair coloring composition according to E148-168, wherein the composition comprises at least one solvent.

[0353] E170: A hair coloring composition according to E169, wherein the composition contains at least 50% solvent relative to the total weight of the composition.

[0354] E171: A hair coloring composition according to E148-170, wherein the composition comprises at least one radical scavenger.

[0355] E172: A hair coloring composition according to E148-171, wherein the composition comprises at least one conditioning agent.

[0356] E173: A hair coloring composition according to E148-172, wherein the composition comprises at least one direct dye.

[0357] E174: A hair coloring composition according to E148-173, wherein the composition comprises at least one second chelating agent.

[0358] E175: A hair coloring composition according to E148-174, wherein the composition comprises at least one thickening agent.

[0359] E176: A hair coloring composition according to E148-175, wherein the composition comprises at least one other component.

[0360] E177: A hair coloring composition according to E176, wherein other components are selected from additional anionic, cationic, nonionic, amphoteric or zwitterionic surfactants, non-thickening viscosity (rheology) modifiers, fragrances, enzymes, dispersants, peroxide stabilizers, antioxidants, natural ingredients, ceramides, preservatives, opacifiers and pearlescent agents, and mixtures thereof.

[0361] E178: A method for treating hair with the hair coloring compositions described in E148-177.

[0362] E179: A method for treating hair according to E178, comprising the step of preparing dye and oxidizing components according to E001-148.

[0363] E180: A method for treating hair according to E178-179, comprising the step of mixing an oxidizing component and a dye component to obtain a hair coloring composition.

[0364] E181: A method for treating hair according to E178-180, comprising the step of applying a hair coloring composition for oxidative dyeing of keratin fibers to the hair.

[0365] E182: A method for treating hair according to E178-181, comprising the step of leaving a composition on the hair for 2-60 minutes.

[0366] E183: A method for treating hair according to E178-182, comprising the step of rinsing the composition off the hair.

[0367] E184: Use of a hair coloring composition obtained by mixing dye and oxidizing components according to E001-177 to maintain natural strand-to-strand variation.

[0368] E185: Use of a hair coloring composition obtained by mixing dye and oxidizing components according to E001-177 to provide evenness from the root to the tip of the hair.

[0369] item Item 1: A hair coloring composition comprising, in an amount of 0.5 to 1.5% by weight of the total weight of the composition, at least one oxidizing agent; in an amount of 0.6 to 0.9% by weight, at least one chelating agent; in an amount of 0.01 to 0.4% by weight, at least one buffered acid compound and in an amount of 0.01 to 0.4% by weight, at least one buffered alkali compound, where the buffered acid compound and the buffered alkali compound form a buffer system; in an amount of 1.2 to 4.5% by weight, a gel network thickening agent system comprising at least one anionic surfactant, at least one fatty alcohol and at least one nonionic surfactant; in an amount of 0.1 to 2% by weight, at least one alkalizing agent; in a combined amount of 0.001 to 10% by weight, at least one oxidized hair dye precursor and at least one coupler; and at least one solvent in an amount of at least 50% by weight, the hair coloring composition having a pH of 6 to 8.

[0370] Item 2: A hair coloring composition according to Item 1, comprising 0.8 to 1.2% by weight of an oxidizing agent; 0.6 to 0.8% by weight of a chelating agent; 0.05 to 0.4% by weight of a buffered acid compound and 0.05 to 0.3% by weight of a buffered alkali compound; 0.5 to 1% by weight of an anionic surfactant, 0.8 to 3.5% by weight of a fatty alcohol and 0.05 to 0.25% by weight of a nonionic surfactant; 0.1% to 1% by weight of an alkalizing agent; 0.001 to 5% by weight of a mixture of oxidizing hair dye precursors and couplers; and at least 60% by weight of a solvent, with a pH of 6.8 to 7.99.

[0371] Item 3: The oxidizing agent is a water-soluble inorganic peroxide; preferably the oxidizing agent is selected from hydrogen peroxide, persulfates and mixtures thereof; the chelating agent is selected from aminocarboxylic acids, preferably from ethylenediamine disuccinic acid, ethylenediaminetetraacetic acid and mixtures thereof; the buffered acid compound is selected from phosphoric acid, citric acid and mixtures thereof; the buffered alkali compound is selected from disodium phosphate, potassium chloride and mixtures thereof; the anionic surfactant is selected from alkyl ether phosphates having an average of 1 to 20 ethylene oxide units; and the fatty alcohol is cetyl alcohol A hair coloring composition according to any of the preceding items, wherein the alkalizing agent is selected from kohl, stearyl alcohol, cetostearyl alcohol, cetearyl alcohol, behenyl alcohol and mixtures thereof; the nonionic surfactant is selected from steareth-20, steareth-100, steareth-150, steareth-200 and mixtures thereof; the alkalizing agent is selected from ammonia, monoethanolamine, their derivatives and mixtures thereof; preferably the alkalizing agent is monoethanolamine and its derivatives; and the solvent is selected from water or a mixture of water and at least one organic solvent.

[0372] Item 4: A composition according to any of the preceding items, comprising at least one radical scavenger, at least one conditioning agent, at least one direct dye, at least one thickener and / or rheological modifier, and additional components selected from mixtures thereof.

[0373] Item 5: A composition according to any of the preceding items, obtained by mixing a dye component and an oxidizing component in a weight ratio of 3:1 to 1:3.

[0374] Item 6: A kit for obtaining a hair coloring composition by any of the preceding items, comprising at least one dye component, at least one oxidizing component, optionally at least one conditioning component, optionally a pretreatment composition and / or optionally a color refresher composition.

[0375] Item 7: A method for treating hair, comprising the steps of: preparing a dye component as described herein; preparing an oxidizing component as described herein; mixing the oxidizing component and the dye component to obtain a hair coloring composition as described herein; applying the hair coloring composition for oxidative dyeing of keratin fibers to hair; leaving the composition on the hair for 2 to 60 minutes; and rinsing the composition off the hair.

Claims

1. A kit for obtaining a hair coloring composition by mixing dye components and oxidizing components in a weight ratio of 3:1 to 1:3, The dye component has a pH of 8.5 to 10, and relative to the total weight of the dye component, - At least one alkalizing agent present in an amount of 0.2 to 4%, - At least one chelating agent present in an amount of 1.2 to 1.8%, - At least one buffered acid compound, citrate, present in an amount of 0.01 to 0.6% - At least one anionic surfactant present in an amount of 0.2 to 1%, - At least one fatty alcohol present in an amount of 1.6–2.5%, - At least one nonionic surfactant present in an amount of 0.1 to 0.5%, - At least one oxidized hair dye precursor and at least one coupler, if present, in an amount of 20% or less in total, and - At least one solvent present in an amount of at least 50% Includes, The oxidizing component has a pH of 1.8 to 3.5, and relative to the total weight of the oxidizing component, - At least one oxidizing agent present in an amount of 1-3%, - At least one buffered acid compound, which is phosphoric acid, present in an amount of 0.15 to 0.5% - At least one buffered alkali compound, which is disodium phosphate, present in an amount of 0.2 to 0.6%, and - At least one solvent present in an amount of at least 50% A kit that includes this.

2. This is a kit for obtaining a hair coloring composition by mixing dye components and oxidizing components in a weight ratio of 2:1 to 1:

2. The dye component has a pH of 9 to 10, and relative to the total weight of the dye component, - Alkalinizing agents present in amounts of 0.2-2%, - Chelating agents present in amounts of 1.2-1.6%, - Buffered acid compounds present in amounts of 0.05 to 0.45%, - Anionic surfactants present in amounts of 0.5-0.8% - Fatty alcohols present in amounts of 1.6-2.3% - Nonionic surfactants present in amounts of 0.2-0.3% - Oxidized hair dye precursors and at least one coupler present in an amount of 0.002 to 20% in total, and - Solvent present in at least 60% of the total amount Includes, The oxidizing component has a pH of 2 to 3, and relative to the total weight of the oxidizing component, - Oxidizing agent present in amounts of 1.2-2.4%, - Buffered acid compounds present in amounts of 0.17 to 0.4%, - Buffered alkali compounds present in amounts of 0.2-0.5%, and - Solvent present in at least 60% of the total amount The kit according to claim 1, comprising:

3. - The alkalizing agent present in the dye component is selected from ammonia, alkanolamines, alkali metal and ammonium hydroxides, alkali metal and ammonium carbonates, and mixtures thereof. - The chelating agent present in the dye component is selected from carboxylic acids, phosphonic acids, polyphosphates, their salts, and mixtures thereof. - The buffered acid compound present in the dye component is citric acid. - The anionic surfactant present in the dye component is selected from C14-C30 alkyl phosphates, C14-C30 alkyl ether phosphates, and mixtures thereof. - The fatty alcohol present in the dye component is selected from linear or branched C14-C30 fatty alcohols. - The nonionic surfactant present in the dye component is selected from polyoxyethylene C14-C30 alkyl ethers. - The oxidized hair dye precursors present in the dye components are toluene-2,5-diamine, p-phenylenediamine, N-phenyl-p-phenylenediamine, N,N-bis(2-hydroxyethyl)-p-phenylenediamine, 2-hydroxyethyl-p-phenylenediamine, hydroxypropyl-bis-(N-hydroxyethyl-p-phenylenediamine), 2-methoxymethyl-p-phenylenediamine, 2-(1,2-dihydroxyethyl)-p-phenylenediamine, 2,2'-(2-(4-A Minophenylamino)ethylazanediyl)diethanol, 2-(2,5-diamino-4-methoxyphenyl)propan-1,3-diol, 2-(7-amino-2H-benzo[b][1,4]oxazine-4(3H)-yl)ethanol, 2-chloro-p-phenylenediamine, p-aminophenol, p-(methylamino)phenol, 4-amino-m-cresol, 6-amino-m-cresol, 5-ethyl-o-aminophenol, 2-methoxy-p-phenylenediamine, 2,2'-methyl Chilenbis-4-aminophenol, 2,4,5,6-tetraaminopyrimidine, 2,5,6-triamino-4-pyrimidinol, 1-hydroxyethyl-4,5-diaminopyrazole sulfate, 4,5-diamino-1-methylpyrazole, 4,5-diamino-1-ethylpyrazole, 4,5-diamino-1-isopropylpyrazole, 4,5-diamino-1-butylpyrazole, 4,5-diamino-1-pentylpyrazole, 4,5-diamino-1-benzylpyrazole, 2,3-diamino Selected from no-6,7-dihydroxypyrazolo[1,2-a]pyrazole-1(5H)-ondimethosulfonate, 4,5-diamino-1-hexylpyrazole, 4,5-diamino-1-heptylpyrazole, methoxymethyl-1,4-diaminobenzene, N,N-bis(2-hydroxyethyl)-N-(4-aminophenyl)-1,2-diaminotan, 2-[(3-aminopyrazolo[1,5-a]pyridine-2-yl)oxy]ethanol hydrochloride, their salts, and mixtures thereof;The coupler contains resorcinol, 4-chlororesorcinol, 2-chlororesorcinol, 2-methylresorcinol, 4,6-dichlorobenzene-1,3-diol, 2,4-dimethylbenzene-1,3-diol, m-aminophenol, 4-amino-2-hydroxytoluene, 2-methyl-5-hydroxyethylaminophenol, 3-amino-2,6-dimethylphenol, 3-amino-2,4-dichlorophenol, 5-amino-6-chloro-o-cresol, 5-amino-4-chloro-o-cresol, 6-hydroxybenzo Nzomorpholine, 2-amino-5-ethylphenol, 2-amino-5-phenylphenol, 2-amino-5-methylphenol, 2-amino-6-methylphenol, 2-amino-5-ethoxyphenol, 5-methyl-2-(methylamino)phenol, 2,4-diaminophenoxyethanol, 2-amino-4-hydroxyethylaminoanisole, 1,3-bis-(2,4-diaminophenoxy)propane, 2,2'-(2-methyl-1,3-phenylene)bis(azandiyl)diethanol, benzene-1,3-diamine 2,2'-(4,6-diamino-1,3-phenylene)bis(oxy)diethanol, 3-(pyrrolidine-1-yl)aniline, 1-(3-(dimethylamino)phenyl)urea, 1-(3-aminophenyl)urea, 1-naphthol, 2-methyl-1-naphthol, 1,5-naphthalenediol, 2,7-naphthalenediol or 1-acetoxy-2-methylnaphthalene, 4-chloro-2-methylnaphthalene-1-ol, 4-methoxy-2-methylnaphthalene-1-ol, 2,6-dihydroxy-3,4-dimethylpyridine , selected from 2,6-dimethoxy-3,5-pyridinediamine, 3-amino-2-methylamino-6-methoxypyridine, 2-amino-3-hydroxypyridine, 2,6-diaminopyridine, pyridine-2,6-diol, 5,6-dihydroxyindole, 6-hydroxyindole, 5,6-dihydroxyindoline, 3-methyl-1-phenyl-1H-pyrazole-5(4H)-one, 1,2,4-trihydroxybenzene, 2-(benzo[d][1,3]dioxol-5-ylamino)ethanol, and mixtures thereof; - The solvent present in the dye component is selected from water or a mixture of water and at least one organic solvent; - The oxidizing agent present in the oxidizing component is selected from water-soluble inorganic peroxides that can produce hydrogen peroxide in an aqueous solution. - The buffer acid present in the oxidizing component is phosphoric acid. - The buffer alkali present in the oxidizing component is disodium phosphate, and - The solvent is selected from water, or a mixture of water and at least one organic solvent. The kit according to claim 1 or 2.

4. The kit according to any one of claims 1 to 3, wherein the dye component further comprises at least one radical scavenger, at least one conditioning agent, at least one direct dye, and / or at least one thickener.

5. The kit according to any one of claims 1 to 4, wherein the oxidizing component further comprises at least one chelating agent, at least one fatty alcohol, at least one conditioning agent, at least one direct dye, and / or at least one thickening agent.

6. The kit according to any one of claims 1 to 5, wherein the dye component and / or oxidizing component comprises additional anionic surfactants, cationic surfactants, nonionic surfactants, amphoteric surfactants, zwitterionic surfactants, non-thickening viscosity (rheology) modifiers, fragrances, enzymes, dispersants, peroxide stabilizers, antioxidants, natural ingredients, ceramides, preservatives, opacifiers and pearlescent agents, and at least one other component selected from mixtures thereof.

7. A hair coloring composition obtained by mixing a dye component and an oxidizing component according to any one of claims 1 to 6, wherein the hair coloring composition has a pH of 6.8 to 8.

8. A hair coloring composition having a pH of 6.8 to 8, In relation to the total weight of the composition, - At least one alkalizing agent present in an amount of 0.1-2%, - At least one oxidizing agent present in an amount of 0.5 to 1.5%, - At least one chelating agent present in an amount of 0.6-0.9%, - At least one first buffered acid compound, which is citrate, present in an amount of 0.05 to 0.3% - At least one second buffered acid compound, which is phosphoric acid, present in an amount of 0.075 to 0.25% - At least one buffered alkali compound, disodium phosphate, present in an amount of 0.1–0.3% - A gel network thickening agent system present in an amount of 1.2 to 4.5%, comprising at least one anionic surfactant, at least one fatty alcohol, and at least one nonionic surfactant. - At least one oxidized hair dye precursor and at least one coupler, if present, in an amount of 10% or less in total, and - At least one solvent present in an amount of at least 50% A hair coloring composition containing [the specified ingredient].

9. The hair coloring composition according to claim 8, further comprising at least one radical scavenger, at least one conditioning agent, at least one direct dye, at least one second chelating agent and / or at least one thickening agent.

10. The hair coloring composition according to claim 8 or 9, further comprising additional anionic surfactants, cationic surfactants, nonionic surfactants, amphoteric surfactants, zwitterionic surfactants, non-thickening viscosity (rheology) modifiers, fragrances, enzymes, dispersants, peroxide stabilizers, antioxidants, natural ingredients, ceramides, preservatives, opacifiers and pearlescent agents, and at least one other ingredient selected from mixtures thereof.

11. A method of treating hair, - A step of providing a dye component and an oxidizing component according to any one of claims 1 to 6, - A step of mixing oxidizing components and dyeing components to obtain a hair coloring composition, - A step of applying a hair coloring composition for oxidative dyeing of keratin fibers to hair, - A step of leaving the composition on the hair for 2 to 60 minutes, - The process of rinsing the composition off the hair and Methods that include...

12. Use of the hair coloring composition according to any one of claims 1 to 10 to maintain natural variations between strands.

13. Use of the hair coloring composition according to any one of claims 1 to 10 to provide improved uniformity from root to tip on the hair.

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