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: Leather is tanned by cross-linking collagen with tris(hydroxymethyl)phosphine or a condensate of a tetrakis(hydroxymethyl)phosphonium salt with an amide or amine in a main tannage or retannage.

Abstract: The invention concerns a ready-to-use composition for dyeing keratin fibres, and in particular human keratin fibres such as hair comprising, in an appropriate dyeing medium, at least a direct cationic dye properly selected, and at least a direct nitrated benzene dye, and the dyeing method using said composition.

Abstract: New oxidation colorant compositions are provided containing a combination of at least one 4,5-diaminopyrazole derivative as a primary intermediate and at least one halogenated m-aminophenol as a secondary intermediate.

Abstract: The object of the present patent application are agents for the oxidative coloring of keratin fibers, particularly hair, based on a developer-coupler combination, characterized in that they contain as the developer at least one 2,5-diamino-1-phenylbenzene derivative of general formula and novel 2,5-diamino-1-phenylbenzene derivatives of formula (I) wherein at least one of the R1 to R10 radicals is different from hydrogen.

Abstract: A two-part high aqueous-content system for oxidative coloration of hair utilizing an aqueous dye lotion formulation containing hydroxypropyl bisisostearamidopropyldimonium chloride conditioner, optionally with one or more surfactants.

Abstract: The object of the present invention is the use of physiologically compatible salts of inorganic or organic acids for improving the absorption behavior of anionic, direct dyes, a 2-step method for dyeing fibers, as well as a multi-component agent for the non-oxidative dyeing of fibers (particularly keratin fibers, such as human hair), the one component of which contains a dyeing agent based on anionic, direct dyes and the other component of which contains the physiological compatible salts.

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 oxidation base, at least one C4-C8 ether of a C2 glycol and/or at least one C1-C8 ether of a C3-C9 glycol and at least one enzyme of 2-electron oxidoreductase type in the presence of at least one donor for the said enzyme, and to the dyeing process using this composition.

Abstract: A hair dyeing composition which comprises the following ingredients:

Abstract: A coloring system for hair and/or skin comprises at least three separately packaged components:

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: The invention concerns novel monobenzene coupling agents comprising at least a cationic group Z, Z being selected among the aliphatic chains containing at least a quaternized unsaturated cycle, their use for oxidation dyeing of keratinous fibres dyeing compositions containing them and dyeing methods using same.

Abstract: New p-diaminobenzene derivative compounds of formula (I), or their physiologically compatible salts, are disclosed: Compositions for oxidatively dyeing keratin fibers, especially human hair, that contain the p-diaminobenzene derivative compounds of formula (I), as well as a suitable coupler substance, are also disclosed.

Abstract: The invention relates to dyeing compositions containing phenyl-azo-benzene compounds 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 the use of such compositions as direct dyes in dyeing applications for keratin substances, in particular human keratin fibers and especially the hair, and to the direct dyeing processes employing these compositions.

Abstract: A hairdye composition containing a metallic compound such as AgNO3 and C3H5AgO3 is disclosed, in which the metallic compound is mixed with a cream type composition that can be applied to hair, thereby gradually coloring gray hair. To this end, AgNO3 is composed of 0.05˜10.0 wt % based on total weight and C3H5AgO3 is composed of 0.05˜10.0 wt % based on total weight.

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: 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: A composition for the oxidation dyeing of keratinous fibers such as hair, comprises at least one para-phenylenediamine derivative as oxidation base, in combination with at least one coupler of meta-aminophenol or meta-diphenol type, and the dyeing process employing this composition.

Abstract: Compositions for oxidation dyeing keratin fibers, such as human keratin fibers like hair, comprising, in a dyeing medium, (1) at least one oxidation dye, (2) at least one thickening polymer comprising at least one fatty chain, and (3) at least one fatty alcohol comprising more than twenty carbon atoms. Processes comprising such oxidation dyeing compositions.

Abstract: The invention relates to a direct dye composition for keratin fibers, in particular for human keratin fibers such as the hair, comprising, in a medium which is suitable for dyeing and which is free of oxidases or oxidoreductases, at least one cationic direct dye of given formula and at least one specific polyol and/or polyol ether. Subjects of the invention are also the dyeing processes and devices/kits using the said composition.

Abstract: The oxidation hair dye precursor composition contains from 0.005 to 20.0 percent by weight of one or more coupler compounds and from 0.005 to 20.0 percent by weight of one or more developer compounds. The one or more developer compounds include at least one substituted 2-aminoalkyl-1,4-diaminobenzene compound of the formula (I): New substituted 2-aminoalkyl-1,4-diaminobenzene compounds of formula (I) are described.

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: An oxidation hair dyeing agent composition provides a color tone for dyed hair which is not easily affected by repeated washing with cold and hot water containing shampoo and soap, and it has superior wash resistance. The oxidation hair dyeing agent composition is characterized as containing a cyclic silicone and a silicone elastomer. As a two-component type oxidation hair dyeing agent composition, it contains as the first component a mixture of an oxidation dye precursor, a cyclic silicone, a silicone elastomer, an emulsifying agent, and water. The mixture is emulsified in water using the emulsifying agent. The second component of the composition is an aqueous hydrogen peroxide solution.

Abstract: The invention concerns an ammonia-free composition for dyeing keratinous fibers, comprising an oxidant compound, coloring agent precursors and a non-volatile odorless alkalizing agent characterized in that it further comprises: a quaternized copolymer of dimethyldiallyl ammonium and acrylic acid; a quaternized silicone; an acrylic-itaconic copolymer esterified with one or several fatty alcohol's, optionally polyoxyethylenated.

Abstract: The invention concerns an oxidation dyeing composition for keratinous fibers containing at least a monobenzene coupling agent including at least a cationic group Z bearing at least a cyclized or non-cyclized quaternary ammonium unit, the use of said coupling agents for dyeing keratinous fibers, dyeing methods using same, and novel monobenzene coupling agents comprising at least a cationic group Z bearing at least a cyclized or non-cylized quaternary ammonium.

Abstract: The invention relates to a ready-to-use composition for the oxidation dyeing of keratin fibers, especially human keratin fibers, such as the hair, having, in a medium suitable for dyeing, at least one oxidation base, at least one coupler chosen from substituted meta-diphenols, and at least one enzyme of 2-electron oxidoreductase type in the presence of at least one donor for the enzyme, with the composition being free from any additional coupler chosen from substituted meta-phenylenediamines; the invention also relates to the dyeing process using this composition.

Abstract: The invention relates to the use of hydroxystilbenes for dyeing, to ready-to-use dye compositions comprising them, to a dyeing process using them and to a multi-compartment device containing the compositions used in the processes of the invention.

Abstract: The invention relates to the use of fused polycyclic compounds having at least one cationic group Z, Z being chosen from quaternized aliphatic chains, aliphatic chains having at least one quaternized saturated ring and aliphatic chains having at least one quaternized unsaturated ring, as direct dyes in compositions intended for dyeing keratin substances and, in particular, compositions intended for dyeing human keratin fibers, especially the hair, and cosmetic compositions intended for making up the skin, the nails and the lips, to the dye compositions or make-up compositions containing them and to the direct dyeing process using them.

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 substituted meta-phenylenediamine as second coupler, as well as to the dyeing process using this composition.

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: A composition, process for preparation and use of a novel hair dyeing composition in the personal care industry. The composition when used in the dyeing process for hair results in a permanent coloration to the hair and improves manageability of the hair and minimizes damage from dyeing process. The use of zwitterionic compounds, specifically alkylmidopropyl dimethyl betaines provide unexpected penetration of the hair by the dye, unexpected oxidative stability in the dye compopsitions, and unexpected color deposition to the hair.

Abstract: In the present invention there is provided a single-step process and composition of hair bleach, which can simultaneously lighten the hair up to seven levels and effectively neutralize any undesirable warmth, provide natural tones or deposit fashion shades. This is achieved by including in the bleach mixture a solution containing basic dye molecules, which in the present invention have been found to be both, stable in the bleach, and capable of depositing the desired amount of tone on the hair. The dyes fall into the class of water-soluble basic azo compounds.

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 subject-matter of the present invention is a composition for the oxidation dyeing of keratinous fibres, in particular of human keratinous fibres, such as hair, comprising 2-chloro-6-methyl-3-aminophenol as coupler, in combination with at least two oxidation bases which are different from one another, and the dyeing process employing this composition with an oxidizing agent.

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 the utilization of onium aldehydes and onium ketones of formula (1) or the derivatives thereof. In the formula, R1 represents a hydrogen atom, a (C1-C4)-alkyl group, an aryl group or a heteroaryl group. R2, R3, R4, independent of one another, each represent a hydrogen atom, a halogen atom, a (C1-C4)-alkyl group, a (C1-C4)-alkoxyl group, hydroxy-(C1-C4)-alkoxyl group, hydroxyl group, nitro group, aryl group, trifluoromethyl group, amino group or (C1-C4)-acyl group. Said amino group can be substituted by (C1-C4)-alkyl groups. Two of the residuals can be combined to form a fused benzene ring. R5 represents a (C1-C4)-alkyl group, aryl group, alkylaryl group or heteroaryl group.

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: The invention relates to a composition for the oxidation dyeing of keratin fibers, and in particular human keratin fibers such as the hair, having, in a medium suitable for dyeing, at least one oxidation base and at least one specific cationic dye as direct dye, as well as to the dyeing process using this composition.

Abstract: A storage stable, re-usable hair coloring composition comprising: (a) an oxidizing agent; and (b) an oxidative hair coloring agent; wherein the pH of each of (a) and (b) is in the range of from about 1 to about 6 and wherein the combined mixture of (a) and (b) has a pH in the range of from about 1 to about 5 and wherein both (a) and (b) are capable of being stored at low pH, either separately, or, once mixed, for at least 1 month at room temperature and wherein the resultant color delivered to the hair (Delta E) is up to about 75%, preferably up to about 85%, more preferably up to about 90% and most preferably up to about 95% of the total color delivered to the hair (Delta E) from a mixture of (a) and (b) on mixing. The products are storage stable and re-usable and can provide excellent hair coloring and in-use efficacy benefits in combination with improved color retention potential after storage at room temperature.

Abstract: The disclosure pertains to oxidation dyes containing at least one pyrimidine derivative with 2-4 amino substituents and 0-2 hydroxy substituents on the pyrimidine ring in combination with 1-(2′hydroxyethyl)-2,5-diaminobenzene and/or 2-(2′-hydroxyethyl amino)-5-aminiotoluene as developers. These oxidation dyes are characterised by a high degree of wash colour fastness and good levelling properties. 2,4,5,6-tetraaminopyrimidine and 4-hydroxy-2,5,6-triaminopyrimidine are preferred pyrimidine derivatives.

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 oxidation base, at least one C4-C8 ether of a C2 glycol and/or at least one C1-C8 ether of a C3-C9 glycol and at least one enzyme of 2-electron oxidoreductase type in the presence of at least one donor for the said enzyme, and to the dyeing process using this composition.

Abstract: An oxidation dye composition for keratin fibres and in particular for human keratin fibres such as the hair, comprising, in water, 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, and, therefore the invention also relates to the processes and dyeing devices using the oxidation dye composition.

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 object of the present invention are colorants for keratin fibers, containing at least one polymethine dye of formula (I) or a physiologically tolerated salt thereof 1

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 first oxidation base chosen from para-phenylenediamine derivatives, double bases, ortho-aminophenols and heterocyclic bases, at least one second oxidation base chosen from para-aminophenols, at least one meta-aminophenol as coupler and at least one enzyme of 2-electron oxidoreductase type in the presence of at least one donor for the said enzyme, and to the dyeing process using this composition.

Abstract: The invention relates to a composition for the oxidation dyeing of keratin fibers, and in particular human keratin fibers such as the hair, having, in a medium suitable for dyeing, at least one oxidation base and at least one specific cationic dye as direct dye, as well as to the dyeing process using this composition.

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.

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 a dye composition for keratin fibers, in particular for human keratin fibers such as the hair, comprising at least one cationic direct dye of given formula and at least glycerol and/or one specific polyol and/or polyol ether. The invention also relates to the dyeing processes and devices using this composition.