Abstract: The subject of the present invention is azo derivatives containing a pyrazolinone unit having the following formula (I), their mesomeric forms, their addition salts with an acid and their solvates and their use for dyeing keratin fibers. The subject of the invention is also a composition for dying keratin fibers comprising at least one azo derivative containing a pyrazolinone unit of formula (I) as direct dye, and the method for dyeing keratin fibers using this composition. The present invention makes it possible in particular to obtain chromatic colors that are resistant to the various attacks to which the hair may be subjected, in particular to shampoos and to light.

Abstract: This invention relates to a hair dyeing composition comprising at least one anionic and at least one cationic direct acting hair dyes and showing excellent dyeing ability and excellent resistance to hair washing and environmental influences. The coloring composition of this invention are ready to use coloring composition and, therefore, do not require any mixing prior to application with additional agents such as oxidizers. According to the invention the preferred cationic dyestuffs are selected from the following structures wherein R1, R2, R3 and R4 stand for hydrogen, a CH3— or C2H5— group, and Y is an anion such as chloride, bromide, methosulfate.

Abstract: Agent for dyeing keratin fibers while simultaneously bleaching the keratin fibers. The agent contains, in a cosmetic carrier, at least one oxidation dye precursor and at least one cationic acylpyridinium derivative.

Abstract: The present invention relates to thiol/disulphide azo quinolinium compounds for dyeing keratin fibres. The invention relates to a dye composition comprising a particular thiol/disulphide azo quinolinium chromophore-containing thiol or disulphide dye, and to a process for dyeing keratin fibres such as the hair, using said composition. It similarly relates to novel particular thiol/disulphide azo quinolinium chromophore-containing dyes and to the uses thereof in dyeing keratin fibres. The dyeing process according to the invention makes it possible to dye keratin fibres without damaging them, in a manner which is particularly persistent with respect to shampooing operations and common attacks. Moreover, the novel dyes according to the invention extend the colour range to violets and blues. This process also makes it possible to dye bleached keratin fibres in a strong and chromatic manner.

Abstract: The present invention relates to a composition for the oxidation dyeing of keratin fibres, in particular of human keratin fibres such as the hair, comprising at least one oxidation base chosen from 4,5- or 3,4-diaminopyrazoles and triaminopyrazoles, in combination with at least one selected carbonyl compound, and also to the dyeing process using this composition with an oxidizing agent.

Abstract: The invention relates to colorant compositions for the oxidative dyeing of keratin fibers comprising an inhibiting system of radical scavengers and chelants in the dyeing composition. The invention also relates to methods for reducing color formation outside of the keratin fiber during oxidative dyeing comprising using such colorant compositions.

Abstract: The present disclosure relates to a dye composition for keratin fibers, such as keratin fibers, for example the hair, comprising, in a medium suitable for dyeing: at least one nonionic derivative of cellulose comprising at least one hydrophobic substituent containing from 8 to 30 carbon atoms; at least one oxidation base chosen from diaminodiazacyclopentene derivatives; and at least one oxidation coupler; and a process for dyeing keratin fibers using such a 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: The present invention relates to a dye composition comprising, in a medium suitable for dyeing: A) one or more particular cationic cellulose ether(s), B) one or more weakly oxyethylenated sorbitan fatty acid ester(s), and C) one or more oxidation dye(s). The present invention also relates to a process for dyeing keratin fibres using such a composition, and also to the use of this composition for dyeing keratin fibres.

Abstract: The present disclosure relates to a composition for dyeing keratin fibers, comprising, in a suitable medium, 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; and at least one second oxidation base chosen from 4,5-diamino-1-(?-hydroxyethyl)pyrazole and the addition salts thereof. The present disclosure also relates to a process for dyeing keratin fibers using the composition of the present disclosure, the use of this composition for dyeing keratin fibers, and also a method for making the composition of the present disclosure.

Abstract: Disclosed are triarylmethane dye compounds of formula (2) wherein R8 is C1-C12alkyl, C1-C12alkoxy, phenyl, hydroxy, halogen, sulfonic acid, carboxylate, or the radical —NR6R7 or —OR8; B1 and B2, independently from each other are C6-C10aryl; or a 5-7-membered heterocyclic compound, which may be substituted by C1-C12alkyl, C1-C12alkoxy, phenyl, hydroxy, halogen, sulfonic acid, carboxylate, or by the radical —NR6R7 or —OR6; and R6 and R7 independently from each other are hydrogen; or C1-C12alkyl, which may be substituted by hydroxy or C6-C10aryl.

Abstract: An air-oxidative type hair dye composition containing a melanin precursor prepared by a process including (A) an oxidation step for converting, into the melanin precursor, a tyrosine or derivative thereof used as a starting substance with an enzyme or cell that is derived from a fungus selected from the group consisting of fungi belonging to the genera Aspergillus, Neurospora, Rhizomucor, Trichoderma, and Penicillium and that exhibits a catechol oxidase activity.

Abstract: A new class of chemical entities chosen from aminoindolizines of formula (I), acid addition salts thereof, and solvates thereof: their use for dyeing keratin fibers, including human keratin fibers such as the hair; dyeing compositions comprising such chemical entities; and to kits containing compositions comprising those chemical entities.

Abstract: Compositions for the oxidation dyeing of keratin fibers, for example of human keratin fibers such as the hair, containing, in a medium suitable for dyeing: a) at least one oxidation dye, b) at least one associative polymer chosen from non-ioninc, anionic, and amphoteric polymers, c) at least one nonionic cellulose-based compound not comprising a C8-C30 fatty chain, and d) at least one cationic polymer with a charge density of greater than 1 meq/g and not comprising a C8-C30 fatty chain.

Abstract: Process to simultaneously color and permanently restructure hair, wherein (a) an oxidative hair colorant is applied to the hair based on at least one developer substance and least one coupler substance, (b) the oxidative hair colorant is left on for 5 to 60 minutes, (c) the oxidative hair colorant is rinsed out of the hair, (d) an acidic intermediate treatment agent with a pH of from 2 to 6 is applied to the hair, (e) after an action period of from 1 to 10 minutes, the intermediate treatment agent is rinsed out, if necessary, and the hair is then rolled up onto curlers, (f) a keratin-reducing permanent restructuring agent is applied to the hair, (g) after an action period of from 1 to 30 minutes, the keratin-reducing agent is rinsed out, if necessary, (h) the hair is fixed with an oxidative material, (i) after an action period of from 3 to 15 minutes, the hair is rinsed with water, if necessary and then treated with an acidic rinse.

Abstract: The present disclosure relates to a cosmetic composition comprising at least one fluorescent dye and at least one aminosilicone; processes using this cosmetic composition and a kit comprising at least one composition comprising at least one fluorescent dye and at least one aminosilicone, which can be used to dye with a lightening effect human keratin materials for example, artificially dyed or pigmented hair, and dark skin.

Abstract: The present disclosure relates to a composition for dyeing keratin fibers, comprising, in a suitable medium, 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 4,5-diamino-1-(3-hydroxyethyl)pyrazole and the addition salts thereof; and at least one coupler chosen from 2-chloro-6-methyl-3-aminophenol and the addition salts thereof. The present disclosure also relates to a process for dyeing keratin fibers using the composition of the present disclosure, the use of this composition for dyeing keratin fibers, and also a method for making the composition of the present disclosure.

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: Disclosed herein is a composition for the dyeing of keratin fibers, for example, human keratin fibers such as the hair, comprising at least one 3-amino pyrazolo-[1,5-a]-pyridine derivative or one of its addition salts and a method employing this derivative. The composition of the present disclosure makes it possible to obtain coloration in various shades that is powerful, chromatic, and aesthetic, with low selectivity and with good resistance to various aggressive factors to which the hair may be subjected, such as shampoos, the light, sweat and permanent shaping.

Abstract: The disclosure relates to compositions and methods of using the compositions to color hair. The composition contains at least one polyamine, at least one acid, at least one water-insoluble ingredient, at least one hair colorant, solvent and optionally at least one auxiliary ingredient. The methods for coloring involve contacting hair with the composition of the disclosure.

Abstract: A composition for the oxidation dyeing of keratin fibers, for example, human keratin fibers, such as 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 C14-C30 alkyl sulphate; as well as the process for using this composition and multicompartment kits comprising the composition.

Abstract: Disclosed are substances which contain unsaturated, non-aromatic dialdehydes of formula (Ia) and/or the tautomer (Ib) thereof, wherein R1, R2, and R3 are defined as indicated in claim 1, along with at least one CH-acidic compound of formulas (II) and/or (III), wherein R6, R7, R8, R9, R10, Y, X?, Het, and X1 are defined as indicated in claim 1, in a cosmetic carrier. Said substances color keratinous fibers, especially human hair, in an intensive, colorfast, natural brown shade.

Abstract: Disclosed herein are methods for coloring keratinous fibers comprising applying to the fibers a dyeing composition comprising at least one aminopyrazolopyridine base, said coloring method being performed without the addition of chemical oxidizing agents.

Abstract: The invention relates to the dyeing of keratin materials using napthylimide thiol/disulphide thiol fluorescent dyes, and to a dyeing process which has a lightening effect on keratin materials, in particular keratin fibres, especially human keratin fibres such as the hair, using said composition. It similarly relates to novel thiol/disulphide fluorescent dyes and to uses thereof in lightening keratin materials. This composition makes it possible to obtain a particularly resistant and visible lightening effect on dark keratin fibres.

Abstract: Present invention is related to oxidative hair coloring composition comprising yogurt powder for improving combability of hair.

Abstract: The present disclosure relates to oxidation dye compositions comprising, in an aqueous medium suitable for dyeing, at least one oxidation dye, ammonia, and at least one mesomorphic phase present in an amount greater than or equal to 10% by weight, relative to the weight of the composition. The present disclosure also relates to the process for preparing the compositions, as well as ready-to-use compositions for oxidation dyeing of keratin fibers, and multi-compartment kits for oxidation dyeing of keratin fibers, wherein at least one compartment contains the dye composition. Another aspect of the present disclosure is an oxidizing composition comprising a mesomorphic phase.

Abstract: This application relates to a dye composition for dyeing keratin fibers, for example human keratin fibers, such as hair, comprising, in an appropriate dyeing medium, at least one aldehyde precursor, at least one enzyme able to generate an aldehyde from the at least one aldehyde precursor and at least one heteroaromatic hydrazone. This application also concerns a method for dyeing keratin fibers using the dye composition, and a dye “kit” containing the dye composition.

Abstract: The present disclosure relates to novel N-alkylpolyhydroxylated secondary para-phenylenediamines, to processes for preparing them, to compositions for dyeing keratin fibers, for example keratin fibers such as the hair, comprising, in a medium that is suitable for dyeing, at least one such secondary para-phenylenediamine. The present disclosure also relates to processes for dyeing keratin fibers with the compositions according to the present disclosure, and to dyeing kits containing such compositions.

Abstract: Disclosed herein is a composition for the oxidation dyeing of keratinous fibers, for example, human keratinous fibers, such as the hair, comprising, in a medium appropriate for dyeing, at least one oxidation dye and at least one polymer comprising the repetition of: (i) at least one unit derived from a monomer of acrylamide type, (ii) at least one unit derived from a monomer of dialkyldiallylammonium halide type, and (iii) at least 50 mol % of at least one unit derived from a monomer of vinylcarboxylic acid type. The composition disclosed is easily and rapidly removed during the rinsing stage while retaining good rheological and dyeing properties.

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 that is suitable for dyeing, at least one oxidation dye and at least one polymer comprising a repetition of: (i) from 45 mol % to 60 mol % of at least one unit derived from a monomer of acrylamide type, (ii) at least one unit derived from a monomer of dialkyldiallylammonium halide type, and (iii) at least one unit derived from a monomer of vinylcarboxylic acid type, wherein the mole ratio of the amount of the at least one unit derived from a monomer of dialkyldiallylammonium halide type to the amount of the at least one unit derived from a monomer of vinylcarboxylic acid type is greater than or equal to 1. The composition disclosed herein makes it possible to prevent or reduce the phenomenon of static electricity at the surface of the hair, while at the same time maintaining good rheological and dyeing properties.

Abstract: The present invention relates to agents for coloring keratin fibers which comprise at least one cationic azodye of the general formula (I).

Abstract: The present disclosure relates to a dye composition for keratin fibers, such as keratin fibers, for example the hair, comprising, in a medium suitable for dyeing: at least one nonionic derivative of cellulose comprising at least one hydrophobic substituent containing from 8 to 30 carbon atoms; at least one oxidation base chosen from diaminodiazacyclopentene derivatives; and at least one oxidation coupler; and a process for dyeing keratin fibers using such a composition.

Abstract: The present disclosure relates to the use of a direct dye as an agent for lightening keratin fibers, such as, for example, human keratin fibers, and/or as an agent for coloring the said fibers. The disclosure also relates to a composition comprising, in a cosmetically acceptable medium, at least the direct dye. The disclosure also relates to a process for treating keratin fibers, including human keratin fibers, using the abovementioned composition, and also to a device comprising it. Finally, the disclosure relates to the use of the composition according to the disclosure as a coloring agent and/or as an optical lightening agent for the fibers.

Abstract: The present invention has for an object agents for coloring keratin fibers and containing at least one indolylthiazoliumazo dye of general formula (I)

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: Compositions for the oxidative dyeing of keratin fibers, comprising a medium suitable for dyeing and one or more tricyclic fused 6-5-6 heteroaromatic keratin dyeing compounds having one heteroatom. 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: Cationic heteroarylazine dyes of general formulas (I) and (II) and colorants for keratin fibers containing these compounds.

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: 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: 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: Colorant for keratin fibers containing cationic indazoline thiazolazo dyes of the general formula (I).

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: Novel cationic 4,5-diaminopyrazole derivatives of general formula (I) the colorants for keratin fibers containing these compounds and a process for producing the compounds of formula (I).

Abstract: Disclosed herein are methods for coloring keratinous fibers comprising applying to the fibers a dyeing composition comprising at least one aminopyrazolopyridine base, said coloring method being performed without the addition of chemical oxidizing agents.

Abstract: Disclosed herein are compositions for dyeing keratinous fibers comprising, in an appropriate dyeing medium, at least one aminopyrazolopyridine oxidation base chosen from those of formula (I), wherein it is understood that at least one of the groups R?1 and R?2 is chosen from cationic radicals; at least one coupler; and at least one C4-C30 polyol, and dyeing methods and multicompartment devices for use thereof.

Abstract: The invention concerns a composition for dyeing keratinous fibers, in particular human keratinous fibers and more particularly hair, comprising, in a medium suitable for dyeing, at least an oxidation dye and at least an associative polymer, characterized in that it further comprises at least a pearling agent selected among coated or uncoated titanium oxides and mica titanium. The invention also concerns dyeing methods and devices using said composition.

Abstract: The present invention has for an object agents for the simultaneous brightening and dyeing of keratin fibers—particularly hair—characterized in that they contain a) at least one oxidant and (b) at least one indolylthiazoliumazo dye of formula (I) and that, (c) they have a basic pH

Abstract: o-Aminophenol derivatives of the general formula (I) or physiologically compatible, water-soluble salts thereof, in which X is oxygen, sulfur or N—R4; R1, R2, R3 may be identical or different and, independently of one another, are hydrogen, a halogen atom, a cyano group, a C1-C4-alkoxy group, a C1-C6-alkyl group, a C1-C4-alkyl thioether group, a mercapto group, a nitro group, a trifluoromethane group, a —C(O)H group, a —C(O)CH3 group, a —C(O)CF3 group, an —Si(CH3)3 group, a C1-C4-hydroxyalkyl group or an aminomethyl group; R4 is hydrogen, a C1-C6-alkyl group, a C1-C4-hydroxy-alkyl group, a phenyl group or an acetyl group; and colorants containing said compounds for keratin fibers.

Abstract: Disclosed is a composition for dyeing keratin fibers, for example, human keratin fibers, comprising, in a cosmetically acceptable medium, at least one direct dye of the following formulae: Also disclosed is a process for treating keratin fibers, for example, human keratin fibers, using the above composition, and also to a multi-compartment device comprising at least one composition as defined above.

Abstract: The present disclosure relates to a family of double para-phenylenediamines joined by a linkage comprising an aromatic group and a process for the dyeing of keratin fibers. These double para-phenylenediamines of formula (I) can be used as oxidation base for the dyeing of keratin fibers. Also disclosed are methods of dyeing, methods of making, and dyeing “kits.