Abstract: A hair dye and hair-dyeing methods using the hair dye are provided. The hair dye comprises, as essential ingredients, (i) a formulation primarily composed of a dye component including indican derived from indigo plants and (ii) a formulation primarily composed of a &bgr;-glucosidase enzyme component. Hair is first mordanted with a dye mordant such as aluminum, iron and the like, and then secondly the prepared hair dye is uniformly applied to the hair either directly or as a mixture of the dye and a proper amount of water. Upon completion of the hair-dyeing, hair is rinsed with water and is finished by drying.

Abstract: The invention relates to novel compositions for the oxidation dyeing of keratin fibers, comprising at least one specific diaminopyrazole derivative, to the dyeing process using this composition, to novel diaminopyrazole derivatives and to a process for their preparation.

Abstract: The invention relates to novel monobenzene oxidation bases containing at least one cationic group Z, Z being chosen from aliphatic chains containing at least one quaternized unsaturated ring, to their use for the oxidation dyeing of keratin fibers, to dye compositions containing them and to oxidation dyeing processes using them.

Abstract: An oxidation dyeing composition for keratinous fibers, in particular hair, comprising, as oxidation base, at least one compound of the formula: where n=0-11, R represents H, amino, a saturated or unsaturated, linear or branched C1-C6 alkyl or is a radical chosen from radicals defined in the specification.

Abstract: The invention relates to a composition for dyeing keratin fibers, in particular human keratin fibers such as the hair, comprising at least one cationic direct dye of given formula and at least one thickening polymer chosen from nonionic guar gums, biopolysaccharide gums of microbial origin, gums derived from plant exudates, pectins, alginates, starches, and carboxyalkylcelluloses. The invention also relates to the dyeing processes and dyeing devices using the composition.

Abstract: The invention concerns a ready-to-use composition for oxidation dyeing of keratinous fibers, and in particular human keratinous fibers such as hair comprising, in a suitable dyeing medium, at least an oxidation base, 2-amino 3 hydroxy pyridine as coupling agent, and at least an enzyme such as laccase, as well as the method using said composition.

Abstract: The p-aminophenol derivative compounds of formula (I), or their physiologically compatible water-soluble salts: are useful as developer compounds in oxidation dye compositions for keratin fibers. Oxidation dye compositions for keratin fibers, including hair, and methods of dyeing hair using the p-aminophenol derivative compounds are also described.

Abstract: The invention relates to a dye composition for keratin fibers, in particular for human keratin fibers such as the hair, having, in a medium suitable for dyeing, at least one cationic direct dye of given formula, and containing at least one specific cationic or amphoteric substantive polymer. The invention also relates to the dyeing processes and devices using the composition.

Abstract: 1,4-Diamino-2-alkenylbenzene derivatives of general formula (I) or physiologically tolerated water-soluble salts thereof 1

Abstract: Compositions for oxidation dyeing of keratin fibers comprising at least one oxidation base and at least one coupler chosen from indolizine derivatives, methods for using the same for oxidation dyeing of keratin fibers, and compounds chosen from indolizine derivatives.

Abstract: The invention concerns the use of indoline derivatives of formula (I): in which R1, R2, R3, R4 and R5 independently of one another represent hydrogen or C1-4 alkyl groups, or R4 and R5 together with the oxygen atoms to which they are attached represent a C1-4 alkylenedioxy group, or of salts of such indoline derivatives, as additives to hair dyeing agents of the direct dyeing or primary intermediate/secondary intermediate type, thus producing hair dyeing with excellent color fastness characteristics.

Abstract: Compositions for oxidation dyeing keratinous fibers, for example, human keratinous fibers such as hair, comprising, in a medium suitable for dyeing, at least one oxidation precursor chosen from 1-(4-aminophenyl)pyrrolidines and acid addition salts of formula (I), and at least one direct dye and processes comprising such compositions.

Abstract: The oxidation dye precursor-containing composition for oxidative dyeing of hair, includes from 0.

Abstract: Couplers for hair coloring compositions for oxidative dyeing of hair are compounds of the formula (1): wherein R is selected from the group consisting of C1 to C2 alkyl and hydroxyethyl; R1 is selected from the group consisting of a hydrogen, hydroxy, nitro, halogen, C1 to C5 alkyl or haloalkyl, C1 to C5 alkoxy or cycloalkoxy, C1 to C5 hydroxyalkyl and C1 to C5 hydroxyalkoxy; Ar is an aromatic group, preferably an aromatic group selected from the group consisting of a furyl, thienyl, pyridyl, phenyl, 2,3-dihydro-benzo[1,4]dioxin-5 or -6-yl or benzo[1,3]dioxol-4 or -5-yl group; and y=1 to 3.

Abstract: A composition for coloring keratin fibers, containing an indoline, an indole, or a derivative thereof in combination with at least one amino acid or oligopeptide. The composition is useful for coloring human hair and restoring grey hair to its natural color. The formulation can be applied with atmospheric oxygen as the sole oxidizing agent.

Abstract: Compositions for the oxidation dyeing of keratin fibers, containing at least one oxidation base and at least one coupler chosen from indolizine derivative comprising at least one cationic group Z, Z being chosen from quaternized aliphatic chains, aliphatic chains comprising at least one quaternized saturated ring, and aliphatic chains comprising at least one quaternized unsaturated ring. Methods of using these cationic indolizine derivatives as couplers for the oxidation dyeing of keratin fibers, in combination with at least one oxidation base, and to dyeing processes using them. Some of these cationic indolizine derivatives are novel.

Abstract: The invention relates to a dye composition for keratin fibers, in particular for human keratin fibers such as the hair, this composition having, in a medium suitable for dyeing, at least one cationic direct dye of given formula, and containing at least one specific cationic or amphoteric substantive polymer. The invention also relates to the dyeing processes and devices using it.

Abstract: The invention relates to a composition for dyeing keratin fibers, in particular human keratin fibers such as the hair, comprising at least one cationic direct dye of given formula and at least one thickening polymer chosen from nonionic guar gums, biopolysaccharide gums of microbial origin, gums derived from plant exudates, pectins, alginates, starches, and carboxyalkylcelluloses. The invention also relates to the dyeing processes and dyeing devices using the composition.

Abstract: The invention relates to a ready-to-use composition for dyeing keratin fibers, and in particular human keratin fibers such as the hair, comprising, in a medium which is suitable for dyeing, at least one cationic direct dye and at least one auto-oxidizable dye, as well as to the dyeing process using this composition.

Abstract: Compositions for oxidation dyeing of keratinous fibers, for example, human keratinous fibers such as hair, further such as human hair, comprising, in a medium suitable for dyeing, at least one oxidation dye, at least one cationic amphiphilic polymer comprising at least one fatty chain, and a combination comprising: (I) at least one compound chosen from oxyalkylenated and glycerolated fatty alcohols and (II) at least one hydroxylated solvent, wherein the hydroxylated solvent may have a molecular weight of less than 250, and wherein the weight ratio of (I) to (II) is greater than 1:1 and dyeing processes and devices, such as kits, comprising such compositions.

Abstract: In the method of temporarily coloring and later decoloring hair a hair colorant is applied and allowed to remain on the hair for an exposure time of 10 to 45 minutes at 20 to 50° C. and then rinsed out. Then at a later time, as desired, the hair is decolorized. The aqueous hair colorant contains 0.01 to 5 percent by weight of at least one dye compound of formula (IV), or a physiologically tolerated salt thereof; wherein n=0, 1 or 2 and R1 represents a C1- to C4-alkyl group, a hydroxyethyl group, a dihydroxypropyl group, a methoxyethyl group, a carboxyethyl group, a C1- to C4-sulfoalkyl group, an unsubstituted or substituted phenyl radical with halogen, sulfonic or carboxylic acid substituents; R2 represents a hydrogen, a methyl group, a carboxylic acid group, a carboxylic acid group esterified with a C1- to C4-alcohol or a carboxamido group; and Y represents an aromatic five-membered heterocyclic ring, which may or may not be benzoanellated.

Abstract: Compositions for oxidation dyeing of keratinous fibers, for example, human keratinous fibers such as hair, comprising, in a medium suitable for dyeing, at least one enzymatic oxidizing agent and at least one oxidation dye chosen from the pyridine compounds and acid addition salts, of formula (I) and processes comprising such compositions.

Abstract: Compositions for oxidation dyeing of keratin fibers comprising at least one oxidation base and at least one coupler chosen from indolizine derivatives, methods for using the same for oxidation dyeing of keratin fibers, and compounds chosen from indolizine derivatives.

Abstract: The invention relates to a composition for the oxidation dyeing of keratin fibers, and in particular of human keratin fibers such as the hair, comprising at least one oxidation base and, as coupler, at least one 2-hydroxynaphthalene of formula (I) comprising at least one cationic group Z of formula (II), to their use as couplers for the oxidation dyeing of keratin fibers, to oxidation dyeing processes using them and to novel cationic 2-hydroxynaphthalenes of formula (I′).

Abstract: The invention concerns a composition for dyeing keratin fibres, in particular human keratin fibres such as hair comprising at least one pyrazolin-4,5-dione of formula (I) and at least one aromatic primary amine. Said composition enables the dyeing of keratin fibres without an oxidising agent in shades which are strong, varied, resistant and less selective than those of prior art. The invention also concerns dyeing methods and devices using said composition.

Abstract: Provided is a hair dye composition containing a direct dye (1). This hair dye composition has markedly high hair dyeing power, has less color fade over time and undergoes a smaller change in the color tone of the dye after storage. [B1, B2: the group (2), (3), (4) or (5); R1, R2: the group (6), (7), etc.; X-: anion (A: a (substituted) phenylene group, etc., R3, R4: a (substituted) lower alkyl group, etc.; X1: O, —NH— or CH2-; X2: a (substituted) trimethylene group, etc.; Y: a (substituted) lower alkyl group, etc.; R5: a lower alkyl group, etc.; R6: a lower alkyl group, etc.; R7: H, etc.; X3: —OH, —NH2— or —SH; R8: a lower alkoxy group, etc.; and R9: a phenyl group, etc.)].

Abstract: The invention concerns novel di-benzene compounds comprising at least one cationic group Z, Z being selected among quatemized aliphatic chains, aliphatic chains comprising at least a quatemized saturated cycle, and aliphatic chains comprising at least a quaternized unsaturated cycle, their use as coupling agents in oxidation dyeing of keratinous fibres, dyeing compositions containing same and oxidation dyeing methods using same.

Abstract: The invention relates to dyeing compositions comprising a combination of two specific cationic dyes and not containing a self-oxidizing agent, to the use of the compositions as direct dyes in dyeing applications for keratin fibers, and in particular human keratin fibers such as the hair, to direct dyeing processes using the compositions, and to dyeing devices using the compositions.

Abstract: Compositions for oxidation dyeing keratinous fibers, for example, human keratinous fibers such as hair, comprising, in a medium suitable for dyeing, at least one oxidation precursor chosen from 1-(4-aminophenyl)pyrrolidines and acid addition salts of formula (I), and at least one direct dye and processes comprising such compositions.

Abstract: The invention relates to a ready-to-use composition for the oxidation dyeing of keratin fibers, and in particular human keratin fibers such as the hair, comprising, in a medium which is suitable for dyeing, at least one self-oxidizing dye, and at least one enzyme of 2-electron oxidoreductase, type, in the presence of at least one donor for the said enzyme, as well as to the dyeing process using this composition.

Abstract: The invention relates to novel indole compounds, to their use as direct dyes in compositions intended for dyeing keratin materials and for example compositions intended for dyeing human keratin fibers and including the hair, and in cosmetic compositions intended for making up the skin, the nails and the lips, to the dye compositions or make-up compositions comprising them and to the direct dyeing process using them, and processes of manufacturing said novel indole compounds.

Abstract: Oxidation colorants for coloring keratinous fibers comprising a primary intermediate and a secondary intermediate, wherein the primary intermediate comprises: a) a pyrimidine derivative wherein the pyrimidine ring is substituted with two to four amino groups and zero to two hydroxy groups; and b) 1-(2′-hydroxyethyl)-2,5-diaminobenzene or 2-(2′-hydroxyethylamino) -5-aminotoluene.

Abstract: The invention relates to a composition for the oxidation dyeing of keratin fibres, and in particular human keratin fibres such as the hair, comprising, in a medium which is suitable for dyeing, at least one oxidation base, 1,3-bis(&bgr;-hydroxyethyl)amino-2-methylbenzene and/or at least one of the addition salts thereof with an acid as first coupler, and at least one selected heterocyclic coupler as second coupler, as well as to the dyeing process using this composition.

Abstract: The use of derivatives of quinoline- or quinoxaline-5,8-diones or -diols in cosmetics, especially for the dyeing of keratinous matter and, in particular, the hair. It also relates to novel compounds of this class. The invention is also directed to dyeing compositions comprising the said compounds and to the method of dyeing keratinous fibers.

Abstract: Novel compositions for the oxidation dyeing of keratin fibers, comprising at least one oxidation base and at least one specific 3-aminopyrazoline as coupler, and dyeing process and dyeing kit using this composition.

Abstract: Dibenzenic ortho-phenylenediamines comprising at least one cationic group Z, Z being chosen from quaternized aliphatic chains, aliphatic chains comprising at least one quaternized saturated ring, and aliphatic chains comprising at least one quaternized unsaturated ring, to their use as oxidation base, coupler or autooxidizable dye for the oxidation dyeing of keratin fibers, to dye compositions containing them, and to oxidation dyeing processes using them.

Abstract: A composition for dyeing keratinous fibers, in particular human keratinous fibers, such as human hair, containing, in a medium suitable for dyeing: as oxidation base, at least one compound of formula (I) below: in which: R1 is a hydrogen atom, an alkyl radical, an aryl radical, a heterocycle radical, or a halogen atom, R2 is a hydrogen atom, an alkyl radical, a hydroxyalkyl radical, or an aminoalkyl radical, Za, Zb and Zc are independently a nitrogen atom or a carbon carrying an R3 or R4 radical with meanings identical to those of R1; wherein at least one of Za, Zb and Zc is a nitrogen atom; it being possible for R3 and R4 to form between themselves a substituted or unsubstituted aromatic ring.

Abstract: The present invention relates to a composition for dyeing keratin fibers, in particular human hair, containing, in a medium which is suitable for dyeing: as coupler, at least one compound of formula: or one of the addition salts with an acid, with R1 denotes, in particular, hydrogen, alkyl, aryl, a heterocycle, halogen, R2 denotes, in particular, hydrogen, halogen, alkoxy, aryloxy, acyloxy, arylthio, alkylthio, . . . R3 has the same meanings as those for R1, Za and Zb, which are different, denote C═O or CR4, with R4 having the same meanings as R1; and at least one oxidation base.

Abstract: The dye composition has a pH of 3 to 12 and contains water, alcohols and/or mixtures thereof as a solvent; from 0.01 to 10 percent by weight of at least one dye compound of formula (I), wherein R1 represents hydrogen or a methyl group and Y is an amino group of the formula —NHR2, and R2 is either a cyclopropyl group, a methoxyethyl group or a methoxypropyl group; OR wherein R1 represents hydrogen or a linear or branched alkyl group with 1 to 4 carbon atoms and Y represents a heterocyclic ring of formula (II): wherein X is a nitrogen atom or an oxygen atom and m is 1, 2 or 3 and n is 0 or 1; and from 0.5 to 30 percent by weight of at least one anionic, cationic, amphoteric and nonionic and/or zwitterionic surface-active substances and/or from 0.1 to 25 percent by weight of at least one thickener and/or from 0.1 to 5 percent by weight of at least one care material. A method of dyeing fibers using the composition is also described.

Abstract: Oxidative hair dyeing systems are provided that are “root seeking”, i.e., which produce more intense initial coloration on new growth, less porous hair compared to the initial coloration produced in older, damaged, more porous hair. More equalized coloration along the shaft of hair can be obtained with the “root seeking” dyeing products.

Abstract: Compositions for oxidation dyeing of keratinous fibers, for example, human keratinous fibers such as hair, further such as human hair, comprising, in a medium suitable for dyeing, at least one oxidation dye, at least one cationic amphiphilic polymer comprising at least one fatty chain, and a combination comprising: (I) at least one compound chosen from oxyalkylenated and glycerolated fatty alcohols and (II) at least one hydroxylated solvent, wherein the hydroxylated solvent may have a molecular weight of less than 250, and wherein the weight ratio of (I) to (II) is greater than 1:1 and dyeing processes and devices, such as kits, comprising such compositions.

Abstract: The invention relates to a dye composition for keratin fibers, in particular for human keratin fibers such as the hair, this composition having, in a medium suitable for dyeing, at least one cationic direct dye of given formula, and containing at least one specific cationic or amphoteric substantive polymer. The invention also relates to the dyeing processes and devices using it.

Abstract: The object of the present invention is a colorant for the semi-permanent tinting of keratin fibers, said colorant being based on a combination of nonoxidative dyes and polymethine dyes of the tautomeric formula (Ia)/(Ib) and a method for tinting keratin fibers.

Abstract: Provided is a hair dye composition containing a direct dye (1). This hair dye composition has markedly high hair dyeing power, has less color fade over time and undergoes a small change in the color tone of the dye even after storage.

Abstract: Compositions for oxidation dyeing of keratinous fibers, for example, human keratinous fibers such as hair, comprising, in a medium suitable for dyeing, at least one enzymatic oxidizing agent and at least one oxidation dye chosen from the pyridine compounds and acid addition salts, of formula (I) and processes comprising such compositions.

Abstract: The invention relates to a composition for dyeing keratin fibers, in particular human keratin fibers such as the hair, comprising at least one cationic direct dye of given formula and at least one thickening polymer chosen from nonionic guar gums, biopolysaccharide gums of microbial origin, gums derived from plant exudates, pectins, alginates, starches, and carboxyalkylcelluloses. The invention also relates to the dyeing processes and dyeing devices using the composition.

Abstract: Monobenzenic ortho-phenylenediamines comprising at least one cationic group Z, Z being chosen from aliphatic chains, comprising at least one quaternized unsaturated ring, to their use for the oxidation dyeing of keratin fibers, to dye compositions containing them and to oxidation dyeing processes using them.

Abstract: A compostion for the dyeing of keratinous fibres comprising, in a medium appropriate for dyeing keratinous fiber contains: as coupler, at least one compound of formula: in which R1 denotes in particular hydrogen, halogen, aryloxy, alkoxy, acyloxy, arylthio, alkylthio, acetamido; an NRIIIRIV radical with RIII and RIV representing a C1-C4 alkyl, and the like; Za, Zb, and Zc represent, independently of one another, a nitrogen atom or else a carbon atom carrying an R2, R3 or R4 radical; provided that: when Za denotes a carbon atom carrying an R2 radical, Zb represents a nitrogen atom and Zc denotes a carbon atom carrying an R3 radical; when Za denotes a nitrogen atom, Zb represents a carbon atom carrying an R4 radical and Zc dentoes a nitrogen atom; R2, R3 or R4=H, C1-4 alkyl, aryl; n is 1 or 2: and at least one oxidation base.

Abstract: The invention relates to an oxidation dye composition for keratin fibres, and in particular for human keratin fibres such as the hair, comprising, in a medium which is suitable for dyeing, at least one oxidation dye precursor and optionally one or more couplers, characterized in that it also comprises a nonionic amphiphilic polymer containing at least one fatty chain and at least one hydrophilic unit.

Abstract: The invention relates to novel compositions for the oxidation dyeing of keratin fibers, comprising at least one specific diaminopyrazole derivative, to the dyeing process using this composition, to novel diaminopyrazole derivatives and to a process for their preparation.