Loreal Sa

L'oreal

Jean-Baptiste Saunier

Laurent Vidal

Gautier Deconinck

Alain Lagrange

Aziz Fadli

Delphine Allard

Jean-Marc Ascione

Valérie Nicou

Jean-Jacques Vandenbossche

Anne-Marie Couroux

Jacqueline Mavro

The present invention relates to a dye composition comprising at least four oxidation dye precursors, including at least one oxidation base chosen from suitably selected pyrazolopyridines and diamino-N,N-dihydropyrazolone derivatives and at least one coupler chosen from suitably selected cationic 3,5-diaminopyridines and 4-aminoindoles, 5-amino-6-chloro-2-methylphenol, 6-hydroxybenzomorpholine, 2-methyl-5-hydroxyethylaminophenol and 2-amino-3-hydroxypyridine, and also to the dyeing process using this composition. The present invention makes it possible in particular to obtain a composition for dyeing keratin fibers that is suitable for use in oxidation dyeing and that can produce colorations in varied shades, which are strong or chromatic, powerful, aesthetic, sparingly selective, and resistant to the various attacking factors to which the hair may be subjected, such as shampoo, sweat, permanent reshaping and light. The composition in accordance with the invention moreover shows good harmlessness and good stability.

Dye composition comprising at least four dye precursors including at least one oxidation base and at least one coupler

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-(&#x3b2;-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.

Composition comprising 2,3-diamino-6,7-dihydro-1H,5H-pyrazolo[1,2-A]pyrazol-1-one, 4,5-diamino-1-(&#x3b2;-hydroxyethyl)pyrazole and 2-chloro-6-methyl-3-aminophenol, kits containing said composition, and process for dyeing therewith

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-(&#x3b2;-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.

Composition comprising 2,3-diamino-6,7-dihydro-1H,5H-pyrazolo[1,2-A]pyrazol-1-one and 4,5-diamino-1-(&#x3b2;-hydroxyethyl)pyrazole, kits containing said composition, and process for dyeing therewith

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.

Method of coloring keratinous fibers comprising application of at least one aminopyrazolopyridine oxidation base in the absence of chemical oxidizing agents

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', and R&#x2032;is chosen from cationic radicals; at least one coupler and at least one C-Cpolyol. Dyeing methods and multi-compartment devices for use thereof.

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

Composition for dyeing keratin fibers, comprising a diamino-N,N-dihydropyrazolone compound, a coupler, and a polyol

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

Composition for dyeing keratin fibers, comprising at least one diamino-N,N-dihydropyrazolone derivative, at least one coupler, and at least one surfactant

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

Composition for dyeing keratin fibers, comprising at least one diamino-N,N-dihydropyrazolone derivative, at least one coupler and at least one associative polyurethane polymer

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.

Imidazole compounds and use of these compounds for dyeing keratinous fibers

Use of 2-(sulphonylamino)phenols as couplers in oxidation coloring

Compositions for oxidation dyeing keratinous fibers, for example, human keratinous fibers such as hair, comprising at least one oxidation base and at least one coupler chosen from N-(2-hydroxybenzene)carbamate and N-(2-hydroxybenzene)urea compounds and their acid addition salts of formula (I) and processes comprising such compositions.

Compositions for the oxidation dyeing of keratinous fibers comprising at least one coupler, and dyeing methods

The subject of the invention is novel compounds derived from naphth-1-ol comprising at least one cationic group, their use as coupler for the oxidation dyeing of keratinous fibres, compositions for the oxidation dyeing of keratinous fibres, and in particular human keratinous fibres such as hair, containing them in combination with at least one oxidation base, as well as methods of oxidation dyeing using them.

Cationic couplers and their use for oxidation dyeing

The subject of the invention is a composition for the oxidation dyeing of keratinous fibers, and in particular human keratinous fibers such as hair, comprising at least one oxidation base and, as coupler, at least one 2-acylaminophenol of formula (I) comprising at least one cationic group Z of formula (II), their use as coupler for the oxidation dyeing of keratinous fibers, oxidation dyeing methods using them, as well as novel cationic 2-acylaminophenols of formula (I&prime;).

Compositions for oxidation dyeing keratin fibres comprising a cationic coupler novel cationic couplers their use for oxidation dyeing and dyeing methods

The invention relates to novel cationic 2-acylaminophenols of formula (I) comprising at least one cationic group, to their use as couplers for the oxidation dyeing of keratin fibers, and in particular of human keratin fibers such as the hair, to oxidation dye compositions containing them in combination with at least one oxidation base, and to oxidation dyeing processes using them.

Growing community of inventors

Paris, France

Jean-Baptiste Saunier