Abstract: The object of the present patent application is an agent for coloring keratin fibers based on oxidative dyes and which contains as developer at least one heterocyclic hydrazone derivative of formula (I) (with X?S or O) and as oxidant at least one persulfate salt, further objects being a multicomponent kit and a method for coloring keratin fibers by use of said agent

Abstract: Compositions for the oxidative dyeing of keratin fibers, comprising a medium suitable for dyeing and at least one bicyclic fused 5-5-membered aza heteroaromatic keratin dyeing compounds having a ring junction nitrogen and an N-hydroxy or N-amino group and derivatives thereof. A method for oxidative dyeing of keratin fibers, comprising applying such compositions in the presence of an oxidizing agent, for a period sufficient to develop the desired coloration.

Abstract: The present disclosure relates to cationic diazo dye compounds of formula (I): Dye1-LK-Dye2, ??(I) dye compositions comprising the direct dye compounds, and also to a process for dyeing keratin fibers using this composition and a multi-compartment kit.

Abstract: Disclosed herein are novel heteroaromatic binuclear direct dyes, dye compositions containing these dyes and also a process for dyeing keratin fibers using them. In particular, the invention relates to heteroaromatic binuclear direct dyes comprising a pyridine nucleus. With these novel dyes, black shades that show good fastness can be obtained, and they also may show good stability in dye compositions.

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 invention relates to novel diaminopyrazole compounds having formula (I): wherein R1 represents a linear or branched C4-C5 alkyl or n-propyl group, or a linear or branched C3-C5 mono or polyhydroxy alkyl group, and the addition salts thereof with a physiologically acceptable acid. The invention also relates to the compositions containing such a compound for the dyeing of keratinous fibres and the method for using said compositions.

Abstract: The present disclosure relates to a cationic diazo compound of formula (I): Dye1-LK-Dye2 wherein Dye1 and Dye2 are such that the compound of formula (I) is not symmetrical, and are chosen from: The disclosure also relates to dye compositions comprising compounds of formula (I) as direct dye, and further relates to a process for dyeing keratin fibers using the compositions disclosed herein and also to a multi-compartment device.

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 present disclosure relates to cationic diazo compounds chosen from those of formula (I) and the acid addition salts thereof: Dye1-LK-Dye2 (I); and to dye compositions comprising the the compounds as direct dye, and also to a process for dyeing keratin fibers using this composition and a multi-compartment device.

Abstract: The present invention relates to a composition for dyeing keratin fibres, and in particular human keratin fibres such as the hair, containing, in a support that is suitable for dyeing, at least one oxidation dye precursor, characterized in that it comprises at least one alcohol oxidase enzyme and at least one substrate for the said enzyme. This patent application also relates to a process for dyeing keratin fibres, which consists in applying this composition, and also to a dyeing “kit”.

Abstract: The present disclosure relates to a composition for oxidation dyeing keratin fibers, for instance human keratin fibers such as the hair, comprising 2-chloro-6-methyl-3-aminophenol as at least one coupler, para-aminophenol as at least one first oxidation base, 3-methyl-4-aminophenol as at least one second oxidation base, and an associative thickening polymer. The present disclosure also relates to a multi-compartment device or kit for the oxidation dyeing of keratin fibers comprising the compositions disclosed herein, and to the dyeing process using these compositions.

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: Compositions for the oxidative dyeing of keratin fibers, comprising a medium suitable for dyeing and at least one bicyclic fused 5-5-membered aza heteroaromatic keratin dyeing compound with an N-hydroxy or N-amino group and derivatives thereof. A method for oxidative dyeing of keratin fibers, comprising applying such compositions in the presence of an oxidizing agent, for a period sufficient to develop the desired coloration.

Abstract: The invention provides new hair colorant and cosmetic compositions comprising carbon nanotubes that have either been chemically functionalized or physically modified to increase their affinity for hair.

Abstract: The method for simultaneously dyeing and permanent shaping of hair includes winding hair strands onto curlers; mixing a dye component (B) containing 1 to 10 percent by weight of one or more dye compound and an amount of a keratin-reducing substance with a shaping component (A) containing from 6 to 15% by weight of the keratin-reducing substance in a weight ratio of from about 1:1 to 1:10 to form a dyeing and shaping composition, which necessarily contains from 5 to 18% by weight of the keratin-reducing substance; then allowing the hair with the dyeing and shaping composition to act on the hair for an acting time sufficient for permanent shaping; after that, allowing a fixing composition to act on the hair for 1 to 40 minutes and then subsequently rinsing the hair. The dye component (B) contains 4,5-diaminopyrazole derivatives and certain aminophenol derivatives.

Abstract: The present invention relates to a composition for dyeing keratinous fibers, containing at least one azodiazine direct dye corresponding to the following formula (I): The present invention also relates to a method for dyeing keratinous fibers using these direct dyes.

Abstract: Provided is a hair dye composition to be used as a mixture of a first part containing an alkali agent and a second part containing an oxidizing agent, wherein the composition comprises (a) a triazacyclononane compound (1) or salt thereof, (b) 0.1 to 12 wt. %, in terms of hydrogen peroxide, of an oxidizing agent, and (c) 0.05 to 10 wt. % of an alkali agent, and the mixture has a pH of from 7.5 to 12. (R1 to R4: H or C1-6 alkyl which may be substituted by OH, R5 to R7: H, (substituted) C1-6 alkyl, (substituted) aralkyl, (substituted) heteroarylalkyl, (substituted) aryl, (substituted) heteroaryl, (substituted) C1-6 acyl, or a group (2) (in which R8 to R12 represents H, C1-6 alkyl, aralkyl or aryl and n stands for 2 to 30). The hair dye composition of the present invention has excellent hair bleaching power, can dye the hair into a bright favorable color tone, and moreover has less hair damage and less scalp irritation.

Abstract: The present invention relates to a composition for dyeing keratin fibers, comprising, in a medium that is suitable for dyeing, a) at least one oxidation base and/or at least one direct dye, and b) at least one particular hydroxycarboxylic acid or a salt thereof. The invention also relates to a ready-to-use composition comprising the above-mentioned composition and an oxidizing agent. The invention also relates to a process for dyeing keratin fibers, in which a composition according to the invention and optionally an oxidizing composition, these compositions being mixed extemporaneously before use or applied successively, are applied to the said fibers; the composition(s) is(are) left on the fibers for a time that is sufficient to obtain the desired coloration; the fibers are rinsed to remove therefrom the composition according to the invention and optionally the oxidizing composition; the fibers are optionally washed, they are rinsed after each washing, and are optionally dried.

Abstract: Disclosed herein are a method of dyeing or coloring, with a lightening effect, a human keratin material comprising applying a composition comprising, in a cosmetically acceptable medium, at least one fluorescent compound and at least one optical brightener; a composition comprising, in a cosmetically acceptable medium, at least one fluorescent compound and at least one optical brightener which are both soluble in the medium; and a device using such a composition comprising at least two compartments, wherein at least one comprises, in a cosmetically acceptable medium, a composition comprising at least one fluorescent compound and at least one optical brightener and optionally at least one additional ingredient chosen from direct dyes, oxidation bases and couplers, and at least one other compartment comprises a composition comprising at least one oxidizing agent.

Abstract: The present invention relates to novel cationic yellow dyes of formula (1) wherein R1 and R2 are each independently of the other a C1-C8alkyl radical or an unsubstituted or substituted benzyl radical, R3 is hydrogen, C1-C8alkyl, C1-C8alkoxy, cyanide or halide, preferably hydrogen and X is an anion, with the proviso that at least one of the substitutents R1 is a benzyl radical and R2 is a methyl radical, R2 is not hydrogen, also to compositions therof, especially comprising other dyes, to processes for the preparation therof and to the use therof in the dyeing of organic material, such as keratin, wool, leather, silk, cellulose or polyamides, especially keratin-containging fibres, cotton or nylon, and preferably human hair.

Abstract: The present invention relates to a composition for coloring keratin fibers and a method of use thereof. The coloring composition contains at least one phosphate-based tenside of a particular formula, at least one conditioning component, and at least one dye and/or dye precursor.

Abstract: The invention concerns novel diaminopyrazole derivatives of formula (I), wherein: R1 represents C1-C6 alkyl or C2-C6, preferably up to C4, alkenyl, linear or branched, bearing at least a substituent selected among OR, NHR, NRR?, SR, SO2R, COOH, CONH2, CONRR?, PO(OH)2, SH, SO3X, a non-cationic heterocycle, Cl, Br or I?; X represents H, Na, K or NH4; R and R?, identical or different, represent C1-C6 alkyl or C2-C6, preferably up to C4, alkenyl, linear or branched, unsubstituted or substituted by one or several functional groups selected among OH, NH2, OR, NHR, NRR?, SR, SOR, SO2R, COOH, CONH2, CONRR?, PO(OH)2, SH, SO3X, a non-cationic heterocycle, Cl, Br or I, X, R and R? having the definitions mentioned above; R2 represents H, or C1-C6 alkyl or C2-C6, preferably up to C4, alkenyl, linear or branched, unsubstituted or substituted by one or several functional groups selected among OH, NH2, OR, NHR, NRR?, SR, SOR, SO2R, COOH, CONH2, CONRR?, PO(OH)2, SH, SO3X, a non-cationic heterocycle, Cl, Br or I, X, R and R? h

Abstract: The disclosure relates to a composition comprising at least one fluorescent dye and at least one non-associative thickening polymer, to processes using such a composition, and to devices comprising such a composition. The disclosure also relates to processes and methods for dyeing human keratin materials, for example artificially dyed or pigmented hair and dark skin, with a lightening effect, using compositions comprising at least one fluorescent dye and at least one non-associative thickening polymer.

Abstract: The object of the present invention is a ready-to-use agent for coloring keratin fibers containing (i) at least one heterocyclic hydrazone derivative of formula (I), (ii) at least one aromatic enamine of formula (IIa) or an acid addition compound thereof (IIb) and (iii) at least one oxidant, a multicomponent kit and a method for coloring keratin fibers by use of said agent

Abstract: Disclosed herein is a dye composition for dyeing human keratin fibers, such as the hair, comprising a direct polycationic dye of formula (I) below: Col-Z-Col??(I) in which Col, which may be identical or different, is a noncationic dye chosen from azo dyes, methine dyes, azomethine dyes, phenothiazine dyes, triarylmethene dyes, xanthene dyes, phenanthridine dyes, and phthalocyanin dyes; and Z is chosen from linear and branched, saturated and unsaturated C1-C20 hydrocarbon-based groups comprising at least one nitrogen atom and bearing at least two cationic charges, and also to processes for dyeing human keratin fiber using said composition, to the use of the dyes of formula (I) as direct dyes, and to multi-compartment devices.

Abstract: A hair dye contains the powder of a poly-element mineral to improve the coloring and colorfastness of the hair dye.

Abstract: The subject of the invention is a composition for the oxidation dyeing of keratinous fibers, in particular human hair, comprising an oxidation base of the para-phenylenediamine type, substituted with a diazacycloheptane radical. The invention also relates to the method for dyeing fibers using this composition, and the novel compounds of the type mentioned above.

Abstract: The disclosure relates to novel imidazole compounds which can be useful as couplers for the oxidation dyeing of keratinous fibers. The present disclosure also relates to a dyeing composition for dyeing keratinous fibers comprising at least one oxidation base and at least one coupler of the imidazole type as disclosed herein, and the dyeing method using this composition.

Abstract: The invention relates to a dye composition that is useful for dyeing keratin fibers, containing at least one oxidation base and at least one coupler of the 6-alkoxy-2,3-diaminopyridine type in which the amino radical in position 2 is a disubstituted amino radical, to the use of this composition for dyeing keratin fibers and to the dyeing process using this composition. The invention also relates to novel 6-alkoxy-2,3-diaminopyridine compounds that are useful as couplers.

Abstract: Disclosed herein are compounds of formulae (I) and (II) below, and also to processes for the synthesis thereof: Also disclosed herein are dye compositions comprising said compounds, as cationic direct dyes, and methods for dyeing keratin fibers, for example, human keratin fibers, using these compositions.

Abstract: Bicyclic 5-5 heteroaromatic compounds having a ring junction nitrogen and incorporating thia or oxa heteroatoms heteroatoms. Compositions for the oxidative dyeing of keratin fibers, comprising a medium suitable for dyeing and one or more bicyclic 5-5 heteroaromatic compounds having a ring junction nitrogen and incorporating thia or oxa heteroatoms heteroatoms. A method for oxidative dyeing of keratin fibers, comprising applying such compositions in the presence of an oxidizing agent, for a period sufficient to develop the desired coloration.

Abstract: Disclosed are 2-(amino or substituted amino)-5-(substituted oxymethyl)-phenol compounds according to the Formula (I), as defined herein. Also, compositions for the oxidative dyeing of keratin fibers, comprising a medium suitable for dyeing and a compound of the Formula (II), as defined herein. The substituents of both formulae may themselves be substituted or unsubstituted. Further, methods for oxidative dyeing of keratin fibers, comprising applying such compositions in the presence of an oxidizing agent, for a period which is sufficient to develop the desired coloration.

Abstract: The invention relates to a composition for the oxidation dyeing of keratin fibres, in particular of human keratin fibres and more particularly the hair, containing, in a medium that is suitable for dyeing, at least one oxidation dye, wherein it also contains at least one polyoxyalkylenated carboxylic acid ether or a salt thereof, at least one associative polymer and at least one fatty alcohol (C8–C30) comprising at least one unsaturation. The invention also relates to the dyeing devices and processes using the said composition.

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: The invention relates to the use of a composition comprising at least one conductive polymer in a cosmetically acceptable medium, said polymer being in soluble form in said medium, as, or for the manufacture of, cosmetic products for giving a visual effect to human keratin fibers and more particularly the hair, and also, when said conductive polymer absorbs in the visible region, as, or for the manufacture of, cosmetic products intended to color said fibers. The invention also relates to the corresponding treatment process.

Abstract: Composition for dyeing keratin fibers, for example, human keratin fibers such as the hair, which comprises at least one compound chosen from among the direct dyes of the heteroylarylmethane type defined herein, including diheteroylarylmethane and leuco precursors thereof. Furthermore, a method for dyeing keratin fibers, for example, human keratin fibers such as the hair, using the composition and a kit or device containing same.

Abstract: The present invention relates to a dye composition comprising, as direct dye, at least one dye of the azo-pyridinio-pyridone family and at least one synthetic dye different from the first dye. The invention also relates to a process for dyeing keratin fibers, e.g., human keratin fibers such as the hair, and to a multi-compartment device for implementing it.

Abstract: The invention relates to a cosmetic dyeing composition that is used to lighten human keratinous matter and, more specifically, artificially colored or pigmented hair and dark skin. The inventive composition comprises at least one flourescent dye. The invention also relates to the methods using said composition.

Abstract: A composition for dyeing keratin fibers, for example, human keratin fibers, such as hair, comprising at least one dye chosen from heteroyldiarylmethane type direct dyes, for example, monoheteroyidiarylmethane direct dyes, and the leuco precursors thereof; and also to methods for dyeing keratin fibers, for example, human keratin fibers, such as hair, using the composition, and multi-compartment devices.

Abstract: Keratin fibers are colored by an agent comprising a coupler which is a m-phenylenediamine derivative of the formula (I) wherein R1 is a C1–C4 alkyl group or a C1–C4 monohydroxyalkyl group; R2 is a methyl or an ethyl group; each of R3 and R4 is independently a branched or unbranched C2–C6 hydroxyalkyl group; and a cosmetically acceptable carrier. These couplers exhibit improved toxicological and dermatological properties and permit hair colorations in a broad color spectrum with good fastness properties.

Abstract: Provided are a hair bleach composition, hair dye composition and a hair treatment additive having excellent bleaching power, capable of dyeing the hair with a bright and good color, and less damaging to the hair and less irritating to the scalp. Described specifically, they are a two-part hair bleach composition, which contains (a) a nitrogenous compound represented by the following formula (1) or (2): or salt thereof, or (A) a nitrogenous compound having a solubility parameter log P in octanol/water ranging from ?1 to 4 and a hydrogen peroxide remaining ratio of from 5 to 90%, or salt thereof, (b) an oxidizing agent, and optionally (c) an alkali agent and, after mixing, has a pH of from 7.5 to 12; a two-part hair dye composition comprising (a) or (A), (b) and (c) and further (d) an oxidation dye or direct dye; and an additive used therefor.

Abstract: Disclosed are cationic diazo compounds of the following formula Dye1-LK-Dye2??(I) in which Dye1 and Dye2 represent: Also herein disclosed are dye compositions comprising the cationic diazo compounds as direct dye, a process for dyeing keratin fibers using this composition, and a multi-compartment device.

Abstract: Disclosed herein are compositions comprising at least one fluorescent dye and at least one particular associative polymer, processes using this composition, and a device therefor. Further disclosed herein is the use of a composition comprising at least one fluorescent dye and at least one particular associative polymer for dyeing a human keratin material, such as artificially dyed or pigmented hair and dark skin, with a lightening effect.

Abstract: Disclosed herein is a composition for the oxidation dyeing of keratin fibers, for example human keratin fibers, such as the hair, comprising, in a medium suitable for dyeing, a) at least one oxidation dye; b) at least one fatty alcohol; c) at least one associative polymer; and d) at least one compound chosen from fatty acid esters and metal oxides.

Abstract: The invention relates to a composition useful for the oxidation dyeing of keratin fibres, in particular of human keratin fibres and more particularly the hair, comprising, preferably in a medium that is suitable for dyeing, at least one oxidation dye, wherein it also comprises at least one polyoxyalkylenated carboxylic acid ether or a salt thereof, and at least one quaternized cellulose comprising at least one fatty chain. The invention also relates to the dyeing devices and processes using the said composition.

Abstract: Disclosed herein are compositions comprising at least one fluorescent dye and at least one polyol, processes using this composition and a device therefor. Further disclosed herein is the use of a composition for dyeing a human keratin material, such as artificially dyed or pigmented hair and dark skin, with a lightening effect, comprising at least one fluorescent dye and at least one polyol.

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.

Abstract: The invention relates to a dye composition comprising a direct dye consisting of different chromophores, the dye having a particular L*a*b* value. The invention also relates to the dyeing process using this composition and to the use of this composition for dyeing keratin fibers. These compositions in particular make it possible to obtain particularly fast colorations.

Abstract: The invention relates to a method for dyeing keratin fibers, especially human hair. The inventive method comprises the following steps: optionally applying a pretreatment agent M1 to the fiber, using a dye M2 on the fiber which is optionally mixed immediately before application to the fiber from a component M2a, containing at least one oxidative dye pre-product of the developer type and/or an indole and/or indole derivative and a component M2b, containing an oxidative dye and/or an enzyme. If desired, a third agent M3 is added to the individual agents M2a or M2b before mixing them or to the mixture M2, and said dye M2 is rinsed from the fiber after a period of 5–10 minutes. At least one of the agents M1, M2a, M2b or M3 contains a compound from the vitamin B6 group. The invention further relates to hair pretreatment agents, to agents for dyeing keratin fibers, to their packing in corresponding kits and to the use thereof.