Abstract: Disclosed are compounds of formula (1) or formula (2). The compounds are useful for the dyeing of organic materials, such as keratin fibers, wool, leather, silk, cellulose or polyamides, especially keratin-containing fibers, cotton or nylon, and preferably hair, more preferably human hair. (1) (2).

Abstract: The invention relates to hair dyeing composition comprising (a) a dye of formula (1); (b) ant least one dye selected from the compounds of formulae (2); (3) and (4); wherein D is the radical of a diazo component of the formula (2a); (2b); (2c); (2d); (2f); (2g) or (2h). The invention also relates to the dyeing methods for dyeing keratinous fibers comprising such dyeing composition.

Abstract: Use of a composition comprising hydrogen peroxide in a cosmetic vehicle allows gentle discoloring of permanently colored, keratinous fibers which have been colored with a specific coloring composition. The coloring composition used for coloring the fibers comprises, in a cosmetic vehicle, a combination of at least one CH-acidic compound with at least one reactive carbonyl compound. The discoloring composition contains preferably between 0% and 15% by weight of hydrogen peroxide and has the effect, in particular in a working time of 5 to 20 minutes even without the use of organic peroxo compounds and in the absence of inorganic persalts, of effective color removal with simultaneous gentle treatment of the fibers.

Abstract: The invention relates to hair dyeing composition comprising (a) a dye of formula (1); (b) a least one dye selected from the compounds of formulae (2) and (3), wherein D is the radical of a diazo component of the formula (2a) and (c) a quaternary ammonium salt selected from (c1) quaternary ammonium salts of the formula (4); (c2) imidazolium salts of the formula (5) and (c3) quaternary diammonium salts of the formula (6). The invention also relates to the dyeing methods for dyeing keratinous fibers comprising such dyeing composition.

Abstract: Disclosed herein are compositions for simultaneous shaping, dyeing, and/or lightening of keratin fibers comprising at least one disulfide direct dye and at least one organic or mineral hydroxide alkaline agent. Also disclosed herein are processes for simultaneous shaping, dyeing, and/or lightening of keratin fibers using said compositions and compartmentalized devices comprising said compositions. The compositions disclosed herein may make it possible to obtain a long-lasting dyeing effect, while limiting the degradation of the keratin fibers.

Abstract: The present disclosure relates to a composition for dyeing keratin fibers, comprising at least one polyalkene-based supramolecular polymer, at least one pigment and at least one volatile solvent, wherein the weight ratio of the at least one supramolecular polymer to the at least one pigment has a value greater than 0.25, and also a process for dyeing keratin fibers using this composition. The present disclosure may make it possible to obtain, on the keratin fibers, colored coatings for keeping the hairs individualized while at the same time preserving the physical qualities of the fiber.

Abstract: Disclosed herein is a process for the predictable coloring of keratinous fibers, for example, human keratinous fibers, such as the hair, comprising applying to the fibers a first composition comprising at least one oxidation base derived from diamino-N,N-dihydropyrazolone and at least one coupler, mixed with a second composition chosen from “fundamental” and/or “golden fundamental” and/or “golden” compositions.

Abstract: The present invention relates to a hair dye composition containing a dissociative azo dye which has high dyeing power, is capable of imparting a vivid color to the hair firmly, has excellent fastness to light, shampooing, sweat, friction, and heat, and fades less with the passage of time because the dye is stable against an alkali agent or an oxidizing agent and does not decompose during hair dyeing; and a hair dyeing method using the hair dye composition.

Abstract: Disclosed are mixtures of sulfide dyes and dyeing compositions comprising mixtures of sulfide dyes. The dye mixtures are useful for the dyeing of organic materials, such as keratin fibers, preferably human hair.

Abstract: Disclosed are oligomeric cationic azo dyes of formula (1), their salts, isomers, hydrates and other solvates, wherein n, R1, R2, X, Y? and Z+ are defined in claims and disclosure. Furthermore, the present invention relates to novel cationic oligomeric azo dyes of formula (1), compositions, thereof, especially comprising other dyes, and to application for hair dyeing.

Abstract: The invention relates to an agent for dying fibers comprising keratin, particularly human hair, the agent comprising at least one compound of the formula: together with at least one CH-acidic compound. The invention also relates to methods for shading oxidation dyed fibers, methods for freshening up fibers, methods for making an agent for dyeing fibers and to various compositions.

Abstract: The present disclosure relates to a composition for dyeing keratin fibers, for example, human keratin fibers such as the hair, comprising at least one first oxidation base chosen from 2,3-diamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one and the addition salts thereof, at least one second oxidation base chosen from para-phenylenediamines, at least one coupler chosen from meta-aminophenols and at least one oxidizing agent, the pH of the composition ranging from 5.5 to 7.5. The present disclosure makes it possible to obtain a coloration on keratin fibers with tints in red, coppery or mahogany tones that are sufficiently visible on natural or dyed hair and uniform from the roots to the ends.

Abstract: Disclosed herein is the use, in the coloring of keratinous fibers, for example human keratinous fibers, such as the hair, of a composition comprising at least one compound chosen from the compounds of formula (I) comprising a cyclic group G including a ring H capable of opening, the dyes corresponding to the compounds of formula (I) wherein the ring H is open and the addition salts thereof: and a method for treating keratinous fibers employing this composition.

Abstract: Disclosed herein is a composition for dyeing keratin fibers, comprising at least one first oxidation base chosen from 2,3-diamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one and the addition salts thereof, at least one second coupler chosen from para-phenylenediamine, para-tolylenediamine, and the addition salts thereof, and at least one coupler chosen from substituted meta-aminophenols, wherein the first coupler/first oxidation base mole ratio is greater than 1, the first oxidation base/second oxidation base mole ratio ranges from 0.5 to 1.5, and the molar amount of the first oxidation base is greater than or equal to 2.5×10?3 mol per 100 g of composition. Also disclosed herein is a dyeing process comprising applying such a composition to the keratin fibers. The compositions of the present disclosure may make it possible to obtain a strong, aesthetic, sparingly selective, and/or fast coloration of keratin fibers in visible deep red shades.

Abstract: A hair dye composition containing an azo dye (1) or a salt thereof, (wherein R1 to R4 represents H, aliphatic hydrocarbon group, aryl group, halogen atom, acyl group, cyano group, acylamino group, or the like, wherein R1 and R2, and/or R3 and R4 may be coupled to form a 5- or 6-membered ring; X represents C or N, with the proviso that when X represents C, n stands for 1, and when X represents N, n stands for 0; A1, A2, A3 and A4 each represents N or represents C substituted by Y or having H, with the proviso that at least one of A1, A2, A3 and A4 is a nitrogen atom; and Y represents a substituent with the proviso that m stands for an integer from 0 to 3).

Abstract: The present disclosure relates to a composition for dyeing keratin fibers, comprising 2,3-diamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one as first oxidation base, 6-chloro-2-methyl-5-aminophenyl as first coupler and a substituted meta-aminophenol of given formula as second coupler, it being understood that the at least one first oxidation base and the at least one first coupler are present in a mole ratio of less than 1.5, the at least one first oxidation base and the at least one second coupler are present in a mole ratio of greater than 1, and the molar amount of the at least one first oxidation base is greater than or equal to 2.5×10?3 mol per 100 g of composition. One aspect of the present disclosure makes it possible to obtain a strong, very chromatic, aesthetic, sparingly selective and/or fast coloration of keratin fibers in coppery shades. Further, the present disclosure makes it possible to obtain a strong coloration at a neutral pH.

Abstract: Disclosed herein are compositions for dyeing keratin fibers, for example human keratin fibers such as the hair, comprising 2,3-diamino-6,7-dihydro-1H,5H-pyrazolo[1,2 -a]pyrazol-1-one or an addition salt thereof, at least one oxidation base, at least one coupler, at least one surfactant chosen from oxyalkylenated or glycerolated fatty alcohols, anionic surfactants of sulfate or sulfonate type and amphoteric surfactants of betaine type, and at least one oxidizing agent, the pH of the composition ranging from 5.5 to 7.5. The compositions disclosed herein make it possible to obtain coloration on keratin fibers with tints in red, coppery or mahogany tones that are sufficiently visible on natural or dyed hair and/or uniform from the roots to the ends.

Abstract: Disclosed herein is the use, in the coloring of keratinous fibers, such as human keratinous fibers, such as the hair, of a composition comprising at least one compound chosen from the compounds of formula (I) comprising a cyclic group G including a ring H capable of opening, the dyes corresponding to the compounds of formula (I) wherein the ring H is open, and the addition salts thereof: and a method for treating keratinous fibers employing this composition.

Abstract: The present invention relates to compositions for dyeing keratin fibers, and in particular human keratin fibers such as the hair, comprising at least one compound of styryl or imine type containing a heterocycle and at least one thiol compound. The present invention makes it possible in particular to obtain a chromatic and fast coloration of keratin fibers, especially with respect to shampooing. Moreover, the color obtained is visible even on dark hair without necessarily using an oxidizing composition. The invention also makes it possible to obtain a coloration which, under certain conditions, does not stain.

Abstract: Disclose herein is a composition for dyeing keratin fibers, for example, human keratin fibers such as the hair, comprising at least one oxidation base chosen from diamino-N,N-dihydropyrazolones and addition salts thereof, at least one coupler, and at least one heterocyclic direct dye. Also disclosed herein is a method for dyeing keratin fibers comprising applying a composition of the present disclosure to the keratin fibers. The compositions and methods of the present disclosure may make it possible to obtain fast coloration of keratin fibers that is resistant to light and/or to washing.

Abstract: Disclosed herein is a mixed cationic direct dye comprising at least one anthraquinone chromophore and at least one cationic chromophore chosen from cationic azo chromophores and cationic hydrazone chromophores, wherein the at least one anthraquinone chromophore is bound to the at least one cationic chromophore by means of at least one linkage. Also disclosed herein is a dyeing composition comprising at least one mixed cationic direct dye. Further disclosed herein is a method of dyeing of keratin fibers, for example, keratin fibers, comprising applying said dyeing composition to the keratin fibers. Still further disclosed herein is a multi-compartment kit comprising at least one compartment comprising at least one dye composition and at least one second compartment comprising at least one oxidizing agent.

Abstract: Sterically hindered hydroxy substituted alkoxyamine stabilizer compounds are made water compatible via certain backbones with affinity towards water. The sterically hindered amines are for example of the formula (8)-(10) These compounds are particularly effective in stabilizing aqueous polymer systems against the deleterious effects of oxidative, thermal and actinic radiation. The compounds are effective for example in stabilizing water borne coatings, aqueous inks, aqueous ink jet media and photocured aqueous systems.

Abstract: The present application relates to cationic pyrazolone dyes of the general formula (I), and to coloring agents for keratin fibers comprising these dyes.

Abstract: By providing a certain oxidative primary and a certain oxidative coupler as an integral ingredients in hair coloring formulations, substantially improved and enhanced hair conditioning benefits are attained, providing a highly effective, hair coloring composition.

Abstract: The present invention relates to agents for coloring keratin fibers which comprise at least one zwitterionic azomethine dye of the general formula (I), (II), or (III) in which z is a heterocycle of the formula in which R8 is an alkyl sulfonate radical of the formula (XIII);

Abstract: The present disclosure relates to compositions for the dyeing of human keratin fibers containing at least one compound of the following formula (I): Also disclosed herein is a method for dyeing human keratin fibers comprising applying to the fibers a dyeing composition of the present disclosure until the desired effect is obtained, in the presence or absence of an oxidizing agent, as well as a dyeing compositions containing at least one compound of formula (I).

Abstract: Disclosed herein is a dyeing composition comprising a particular disulphide dye and a method of dyeing human keratin fibers, such as hair, using this composition. This composition makes it possible to obtain particularly fast chromatic colorations.

Abstract: Disclosed herein is a composition for dyeing keratin fibers, for example, human keratin fibers such as the hair, comprising at least one oxidation base chosen from diamino-N,N-dihydropyrazolones and the addition salts thereof, at least one coupler, and at least one surfactant chosen from (C8-C30)alkyl ether carboxylic acids and salts thereof, (C12-C30)alkyl polyglucosides, monoglycerolated surfactants, and polyglycerolated surfactants. Also disclosed herein is a method for dyeing keratin fibers comprising applying a composition in accordance with the present disclosure to the keratin fibers. The compositions and methods of the present disclosure may makes it possible to obtain fast coloration of keratin fibers that is resistant to light and/or to washing.

Abstract: The present disclosure relates to a composition for dyeing keratin fibers, for instance human keratin fibers such as the hair, comprising at least one oxidation base chosen from diamino-N,N-dihydropyrazolone compounds and addition salts thereof, at least one coupler and at least one C4-C30 polyol. The present disclosure also relates to the dyeing process and kit using the composition as presently disclosed. Use of the present disclosure makes it, for example, possible to obtain fast coloration of keratin fibers that is resistant to light and to washing.

Abstract: The present disclosure relates to a composition for dyeing keratin fibers, for example, human keratin fibers such as the hair, comprising at least one oxidation base chosen from diamino-N,N-dihydropyrazolone compounds and addition salts thereof, at least one coupler and at least one associative polyurethane polymer, and also to a dyeing process and kit using such a composition. The present disclosure makes it possible, for instance, to obtain fast coloration of keratin fibers that is resistant to light and to washing.

Abstract: The present disclosure relates to a composition for dyeing human keratin fibers, comprising at least one cationic direct dye of formula (I), described herein, and at least one cosmetic agent chosen from thickening agents and surfactants. Also disclosed herein is a dyeing process comprising applying a composition of the present disclosure to keratin fibers, in the presence or absence of an oxidizing agent. Further disclosed herein is a multi-compartment device comprising at least one first compartment containing a dye composition of the present disclosure and at least one second compartment containing at least one oxidizing composition.

Abstract: Formula (I) wherein R1 and R2 each independently from each other are a residue of an organic dye: Y1 and Y2 each independently from each other are unsubstituted or substituted, straightchain or branched, interrupted or uninterrupted —C1-C10alkylene-; —C5-C10cycloalkylene-; C5-C10arylene; or —C5-C10arylene-(C1-C10alkylene)-; Z1 and Z2 independently from each other are Formula (II) are each independently from each other hydrogen; or unsubstituted or substituted, straight-chain or branched, mono-cyclic or polycyclic, interrupted or uninterrupted C1-C14alkyl; C2-C14alkenyl; C6-C10aryl; C6-C10aryl-C1-C10alkyl; or C5-C10alkyl(C5-C10aryl); r, q and n independently from each other are 0 or 1, if n is 0, Z3 is hydrogen; and if n is 1, Z3 is —S—: with the proviso that the method does not comprise treating the fiber with an enzyme of the type of a protein disulfidisomerase (EC 5.3.4.1).

Abstract: Fiber-coloring components for dye compositions and methods for using the same, wherein the compositions comprise: (i) at least one component A comprising a compound selected from imidazo[1,5-a]pyrimidinium derivatives of general formula I, enamine counterparts of such derivatives, and mixtures thereof: and (ii) at least one component B comprising a reactive carbonyl compound.

Abstract: Disclosed herein is a method for dyeing keratin fibers, for example, human keratin fibers such as the hair, comprising applying to the keratin fibers a dye composition comprising at least one compound chosen from styryl and imine compounds comprising a heterocycle that can undergo opening and/or dyes corresponding to these compounds whose heterocycles are open. The compositions and methods of the present disclosure may produce a coloration of keratin fibers that is chromatic and fast with respect to external factors such as shampooing, does not stain, and/or allows simultaneous dyeing and bleaching of keratin fibers.

Abstract: An agent for dyeing keratin-containing fibers, especially human hair, is comprised of a cosmetic carrier, and (A) at least one compound of Formula I, wherein each of R1, R2 and R3 is independently a hydrogen atom, a halogen atom, a C1-C6 alkyl group, a C2-C6 alkenyl group, a hydroxyl group, a C1-C6 alkoxy group, a C1-C6 hydroxyalkyl group, a C2-C6 polyhydroxyalkyl group, a hydroxy C1-C6 alkyloxy group, a sulfonyl group, a carboxyl group, a C1-C6 alkoxycarbonyl group, a hydroxy C2-C6 alkyloxycarbonyl group, a sulfonic acid group, a sulfonamido group, a sulfonamide group, a C2-C6 acyl group, a formyl group, a nitro group, a carbamoyl group —C(O)—NR4R5, or a —(CH2)nNR6R7 group wherein each of R4, R5, R6 and R7 is independently a hydrogen atom, a C1-C6 alkyl group or a C2-C6 hydroxyalkyl group; and n is number from 0 to 6, wherein R1 and R2 can form a 5- or 6-membered aromatic or heteroaromatic ring; and (B) at least one CH-acidic compound.

Abstract: A subject-matter of the present patent application is the use, as direct dye in dyeing compositions for keratinous fibres, in particular human keratinous fibres, such as the hair, or for the manufacture of such compositions, of a specific polycationic compound.

Abstract: The invention concerns the use as direct dyeing agent of at least one tetra-azapentamethine compound, a dyeing composition comprising at least such a compound, as well as a method for dyeing keratinous fibers, in particular human keratinous fibers and more particularly hair, which consists in applying at least one composition comprising such a compound. The composition also concerns tetra-azapentamethine compounds of formula (I). The invention further concerns a method for bleaching such compounds, as well as bleaching keratinous fibers previously dyed therewith.

Abstract: A dye composition comprising at least one mixed dye comprising at least two chromophore chosen from azine and (hetero)aromatic nitro compounds, optionally associated with at least one chromophore chosen from methine and carbonyl compounds; a process for dyeing keratin fibers, for example, human keratin fibers, such as the hair, using the composition, a multi-compartment device comprising the composition; and the abovementioned mixed dyes.

Abstract: Disclosed herein are a dye composition comprising at least one mixed dye comprising at least one chromophore chosen from chromophores of the azo family and the tri(hetero)arylmethane family; and the mixed dyes. Further disclosed herein are a process for dyeing keratin fibers, such as human keratin fibers, using the composition, and a device comprising the composition.

Abstract: The present disclosure relates to processes for synthesizing tetraazapentamethine compounds that comprise reacting at least one compound of azine type with at least one oxidizing agent. The disclosure also relates to processes for dyeing keratin fibers, for example human keratin fibers, that comprise using such synthetic processes.

Abstract: The present invention relates to a dye composition including at least one mixed dye containing at least one chromophore of methine or carbonyl type or their combinations. The invention furthermore relates to a process for dyeing keratin fibers, especially human keratin fibers, such as the hair, using the composition, and also to a suitable kit. The invention also relates to the abovementioned mixed dyes per se.

Abstract: Disclosed herein are a composition for dyeing keratinous fibers, for example, human keratinous fibers such as hair, comprising at least one oxidation base chosen from diamino-N,N-dihydropyrazolone derivative and a method using the composition. Further disclosed herein are amino-N,N-dihydropyrazolone derivatives and the addition salts thereof and diamino-N,N-dihydropyrazolone derivatives and the addition salts thereof, as well as the methods for preparing these compounds.

Abstract: The present disclosure relates to compounds used as direct dyes, and dyeing compositions comprising such compounds. The disclosed compounds have the formula A-L-B, wherein A and B are chosen from arylazoimidazolium coloring functional groups, and L is a linker comprising at least one cationic group C. The disclosure also relates methods of using such compositions for coloring keratin fibers, such as the hair.

Abstract: The invention relates to a composition comprising a pyrazine derivative and to methods using said compositions as an optical bleach and/or dye in a direct or oxidation dyeing composition for keratin fibers, such as human keratin fibers, for example, hair. The invention also relates to methods of making said compositions and to a multicompartment device for dyeing and/or optical bleaching containing the claimed composition.

Abstract: The present disclosure relates to the process of dyeing human keratinous fibers, such as the hair, with at least one specific direct dye in cosmetic compositions. Also disclosed herein are the direct dyeing and lightening compositions comprising said compounds, and the corresponding dyeing kits.

Abstract: A method of colouring porous material, especially human hair, is described, which method comprises applying to the material being coloured, in any desired order successively, or simultaneously, a) at least one capped diazonium compound of Formula (1) and/or at least one compound of Formula (2) and/or at least one compound of Formula (3) wherein Q is an unsubstituted or substituted aromatic or heterocyclic residue, R is the radical of an unsubstituted or substituted, water-soluble aliphatic or aromatic amine, and T is an unsubstituted or substituted, water-soluble aliphatic or aromatic residue, wherein at least one of the groups must contain a radical imparting water solubility, and a) at least one water-soluble coupling component under conditions such that, initially, coupling does not take place, and then causing the capped diazonium compound present on the material to react with the coupling component

Abstract: A method of coloring porous material, especially human hair, is described, which method comprises applying to the material being colored, in any desired order successively, or simultaneously, a) at least one capped diazonium compound and b) at least one cationic water-soluble aromatic coupling component, under conditions such that, initially, coupling does not take place, and then causing the capped diazonium compound present on the material to react with the coupling component.

Abstract: The present invention relates to cationic direct dyes of formula (I) below: in which W1 represents —NR8— or —O—; X1 represents N; CR9; R1 and R2, which may be identical or different, represent a hydrocarbon chain; R3 and R4, which may be identical or different, represent a hydrogen atom, a halogen atom, a nitro group, a cyano group or a hydrocarbon chain; R5, R6, R7, R8 and R9, which may be identical or different, represent a hydrogen atom or a hydrocarbon chain; L represents a specific bridging group and X represents a cosmetically acceptable organic or mineral anion. It likewise relates to a dye composition comprising, in a medium suitable for dyeing human keratin fibers, such a dye, a process using it, and also a multicompartment device.

Abstract: A composition for dyeing keratin fibers, such as human keratin fibers, and further such as the hair, comprising at least one dye chosen from heteroylmethane type direct dyes, such as triheteroylmethane direct dyes and leuco precursors of such dyes, as defined herein. A method that uses the composition for dyeing keratin fibers, such as human keratin fibers, and further such as the hair, and a kit or device containing same.

Abstract: The present invention relates to the use, for dyeing keratin fibres, of at least one specific compound containing active methylene and of at least one compound chosen from an aldehyde, a ketone, a quinone and a diiminoisoindoline or 3-aminoisoindolone derivative, which makes it possible to obtain, by reaction without an oxidizing agent, a coloration of the said keratin fibres.