L'oreal

Loreal Sa

Philippe Rapold

Caroline Goget

Delphine Allard

Frédéric Simonet

Luc Nicolas-Morgantini

Gautier Deconinck

Marie-Pascale Audousset

Sophie Bouxirot

Henri Samain

Leïla Hercouet

Arnaud Hucher

Aurélie Lafuma

Caroline Melle Goget

The present invention relates to the field of lightening keratin fibres and more particularly to the field of lightening the hair. The present invention relates to a process for lightening keratin fibres, in particular human keratin fibres such as the hair, which consists in using on the said fibres i) a substrate comprising on its surface one or more chemical oxidizing agents preferably in solid form, and ii) an aqueous composition preferably comprising one or more chemical oxidizing agents. The present invention also relates to a process for preparing the said substrate thus pretreated.

Lightening process using a substrate bearing at least one oxidizing agent and an aqueous composition

The present invention relates to a process for dyeing keratin fibers in which a mixture is applied to the fibers, this mixture being obtained from: a dye composition comprising at least one oxidation dye precursor, and an oxidizing composition comprising at least one chemical oxidizing agent, at least one of the compositions being dispensed from a pressurized container, the mixture of the two compositions comprising at least one thickening polymer chosen from: associative polymer, anionic non-associative polymer chosen from anionic polymers bearing sugar units, anionic polymers not bearing sugar units chosen from crosslinked acrylic or methacrylic acid homopolymers or copolymer, crosslinked 2-acrylamido-2-methylpropanesulfonic acid homopolymers and crosslinked acrylamide copolymers thereof, ammonium acrylate homopolymers, or copolymers of ammonium acrylate and of acrylamide, alone or mixtures thereof, and mixtures thereof; and also to a device suitable for performing this process.

Dyeing process using a mixture comprising a thickening polymer, obtained from an aerosol device, and device therefor

The present invention relates to a process for dyeing or lightening keratin fibres, comprising the step of extemporaneously mixing at the time of use two compositions (A) and (B) and of applying the said mixture to the said fibres; the said mixture comprising at least 25% by weight of fatty substances relative to the total weight of the composition obtained from the mixing of two compositions (A)+(B); with: &#x2014;(A) representing a composition in direct emulsion form whose content of oil(s) ii) is at least 30% by weight relative to the weight of composition (A), and comprising: i) at least one nonionic surfactant that is solid at room temperature and at atmospheric pressure, with an HLB ranging from 1.5 to 10; ii) at least one basifying agent; Hi) optionally at least one additional surfactant other than the solid nonionic surfactants (i), iv) optionally at least one dye; and&#x2014;(B) representing a composition comprising at least one chemical oxidizing agent. A subject of the present invention is also a multi-compartment device and a composition (A) in direct emulsion form and the ready-to-use composition resulting from the mixing of compositions (A) and (B). The process according to the invention makes it possible to dye keratin fibres in a powerful, intense and/or homogeneous manner while at the same time being easy to prepare and to apply, since the mixture in the form of an oil-rich emulsion does not run, but remains localized at the point of application. The process of the invention also makes it possible to lighten keratin fibres in a noteworthy manner.

Process for dyeing or lightening keratin fibres in two parts, using an oil-rich alkaline direct emulsion based on a solid nonionic surfactant with an HLB ranging from 1.5 to 10

The present invention relates to a process for dyeing keratin fibers in which a mixture is applied, this mixture being obtained from: &#x2022;a dye composition comprising at least one oxidation dye precursor and at least a liquid fatty substance, and &#x2022;an oxidizing composition comprising at least one chemical oxidizing agent, &#x2022;at least one of the compositions being dispensed from a pressurized container, &#x2022;the mixture of the two compositions comprising at least one branched C-Cpolyol, and also to equipment suitable for performing this process.

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The present invention relates to a process for dyeing keratin fibers in which a mixture is applied, this mixture being obtained from: &#x22c5;a dye composition comprising at least one oxidation dye precursor, and &#x22c5;an oxidizing composition comprising at least one chemical oxidizing agent, &#x22c5;at least one of the compositions being dispensed from a pressurized container, &#x22c5;the mixture of the two compositions comprising at least one saturated or unsaturated C-Cfatty alcohol comprising from 1 to 10 mol of glycerol, preferably from 1 to 5 mol of glycerol and/or at least one oxyalkylenated carboxylic acid ether in acid or salified form, and also to a device suitable for performing this process.

Dyeing process using a mixture obtained from an aerosol device comprising a glycerolated surfactant, and device therefor

The present invention relates to a process for dyeing keratin fibers in which a mixture is applied to the fibers, this mixture being obtained from: &#x2014;a dye composition comprising at least one oxidation dye precursor, and&#x2014;anoxidizing composition comprising at least one chemical oxidizing agent, &#x2014;at least one of the compositions being dispensed from a pressurized container, &#x2014;the mixture of the two compositions comprising at least one nonionic oxyalkylenated saturated or unsaturated C-Cfatty acid amide, and also to a device suitable for performing this process.

Dyeing process using a mixture obtained from an aerosol device comprising a nonionic fatty amide, and device therefor

The present invention relates to a process for dyeing keratin fibers in which a mixture is applied to the fibers, this mixture being obtained from: &#x2022;a dye composition comprising at least one oxidation dye precursor, and &#x2022;an oxidizing composition comprising at least one chemical oxidizing agent, &#x2022;at least one of the compositions being dispensed from a pressurized container, &#x2022;the mixture of the two compositions comprising: (i) at least one C-Cfatty alcohol that is liquid at room temperature and at atmospheric pressure, (ii) at least one amphoteric or zwitterionic surfactant, (iii) at least a compound chosen from non ionic surfactant comprising a lipophilic part comprising a saturated or unsaturated, linear or branched Cor Chydrocarbon-based chain and a hydrophilic part comprising at least 20 mol of ethylene oxide, unsaturated C-Cfatty acid, in acid or salified form, and mixture thereof, and also to a device suitable for performing this process.

Dyeing process using a mixture obtained from an aerosol device comprising a liquid fatty, alcohol and surfactants

The present invention relates to a process for dyeing keratin fibres in which a mixture is applied to the fibres, this mixture being obtained from: a dye composition comprising at least one oxidation dye precursor, and an oxidizing composition comprising at least one chemical oxidizing agent, at least one of the compositions being dispensed from a pressurized container, the mixture of the two compositions comprising at least one thickening polymer chosen from: associative polymer, anionic non-associative polymer chosen from anionic polymers bearing sugar units, anionic polymers not bearing sugar units chosen from crosslinked acrylic or methacrylic acid homopolymers or copolymers, crosslinked 2-acrylamido-2-methylpropanesulfonic acid homopolymers and crosslinked acrylamide copolymers thereof, ammonium acrylate homopolymers, or copolymers of ammonium acrylate and of acrylamide, alone or mixtures thereof, and mixtures thereof; and also to a device suitable for performing this process.

The present invention relates to a process for dyeing or lightening keratin fibers, comprising the step of extemporaneously mixing at the time of use two compositions (A) and (B) and of applying the said mixture to the said fibers; the said mixture comprising at least 25% by weight of fatty substances relative to the total weight of the composition obtained from the mixing of two compositions (A)+(B); with: &#x2014;(A) representing a composition in direct emulsion form whose content of oil(s) ii) is at least 30% by weight relative to the weight of composition (A), and comprising: i) at least one nonionic surfactant that is solid at room temperature and at atmospheric pressure, with an HLB ranging from 1.5 to 10; ii) at least one basifying agent; Hi) optionally at least one additional surfactant other than the solid nonionic surfactants (i), iv) optionally at least one dye; and &#x2014;(B) representing a composition comprising at least one chemical oxidizing agent. A subject of the present invention is also a multi-compartment device and a composition (A) in direct emulsion form and the ready-to-use composition resulting from the mixing of compositions (A) and (B). The process according to the invention makes it possible to dye keratin fibers in a powerful, intense and/or homogeneous manner while at the same time being easy to prepare and to apply, since the mixture in the form of an oil-rich emulsion does not run, but remains localized at the point of application. The process of the invention also makes it possible to lighten keratin fibers in a noteworthy manner.

The present invention relates to a process for dyeing or lightening human keratin fibers, which consists in extemporaneously mixing at the time of use two compositions (A) and (B) and in applying the mixture to the fibers; the said mixture comprising at least 25% by weight of fatty substances relative to the total weight of the mixture of compositions (A)+(B); with: composition (A) being in the form of a direct emulsion comprising: at least 30% by weight of oil(s) (i); at least one fatty alcohol that is solid at room temperature and at atmospheric pressure (ii); at least one fatty ester, which is solid at room temperature and at atmospheric pressure (iii); at least one surfactant (iv); at least one basifying agent (v) and/or at least one dye (vi) chosen from oxidation dyes and direct dyes, and mixtures thereof; composition (B) comprising, in a cosmetically acceptable medium, at least one oxidizing agent. The invention also relates to a non-oxidizing composition (A) in the form of a direct emulsion. Lastly, the invention relates to a multi-compartment device.

Dyeing or lightening process using a composition rich in fatty substances comprising a solid alcohol and a solid ester, compositions and device

The present invention relates to a process for dyeing or lightening human keratin fibers, which consists in extemporaneously mixing at the time of use two compositions (A) and (B) and in applying the mixture to the fibers; the said mixture comprising at least 25% by weight of fatty substances relative to the total weight of the mixture of compositions (A) (B); with: composition (A) being in the form of a direct emulsion comprising: at least 30% by weight of oil(s) (i); at least one fatty alcohol having at least 20 carbon atoms in its longest hydrocarbon chain (ii); at least one surfactant (iii); at least one basifying agent (iv); and optionally at least one dye chosen from oxidation dyes and direct dyes, and mixtures thereof (v); composition (B) comprising at least one oxidizing agent. The invention also relates to compositions (A), the mixture of the aforementioned compositions (A) and (B), and a multi-compartment device.

Dyeing or lightening process using a composition rich in fatty substances comprising an alcohol having at least 20 carbons, compositions and device

The present disclosure relates to a composition for dyeing or lightening human keratin fibers, comprising:

Composition comprising at least one fatty substance and at least one cationic polymer, dyeing or lightening process using it and devices therefor

The present disclosure relates to a composition for dyeing or lightening human keratin fibers, comprising: a cosmetically acceptable medium; at least 25% by weight of at least one fatty substance; from 0.5% to 15% by weight of at least one silicate chosen from smectite, vermiculite, stevensite and chlorite clays; at least one dye chosen from oxidation dyes and direct dyes; at least one basifying agent; and at least one oxidizing agent. The disclosure also relates to a dyeing or lightening process using it. Another aspect of the disclosure is multi-compartment devices or kits for obtaining, after mixing together the compositions of the compartments, just before its application, a composition according to the disclosure.

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Paris, France

Philippe Rapold