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AssigneeL'oreal
InventorsFrédéric SIMONET, Franck Clement, Marie-Pascale Audousset
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One subject of the present invention is a compositing for dyeing or lightening human keratin fibres, comprising, in a cosmetically acceptable medium: (a) at least 25% by weight of a mixture of fatty substances comprising at least one fatty alcohol that is solid at ambient temperature; the mixture of fatty substances comprising at least one additional fatty substance chosen from C6-C16 lower alkanes, non-silicone oils of animal, mineral or synthetic origin, fatty alcohols other than fatty alcohols that are solid at ambient temperature, esters of a fatty acid and/or of a fatty alcohol, non-silicone waxes, silicones, or mixtures thereof; (b) at least one oxidizing agent; and (c) optionally one or more basifying agents. It furthermore relates to a dyeing or lightening process using the same. Another subject of the invention is constituted by two-compartment or three-compartment devices that make it possible, after mixing the compositions of the compartments just before application, to obtain a composition according to the invention.
Compositing for dyeing or lightening human keratin fibres, characterized in that it comprises, in a cosmetically acceptable medium:
Composition according to the preceding claim, characterized in that the fatty alcohol or alcohols that are solid at ambient temperature are chosen from saturated linear alcohols comprising from 8 to 30 carbon atoms.
Composition according to the preceding claim, characterized in that the fatty alcohol or alcohols that are solid at ambient temperature are chosen from cetyl alcohol, stearyl alcohol and mixtures thereof.
Composition according to any one of the preceding claims, characterized in that the content of solid fatty alcohol(s) is between 0.2 and 50% by weight, more particularly between 0.5 and 30% by weight, and preferably between 1 and 15% by weight, relative to the weight of the composition.
Composition according to any one of the preceding claims, characterized in that the additional fatty substance or substances other than fatty alcohols that are solid at ambient temperature, are chosen from compounds that are liquid or pasty, and preferably that are liquid at ambient temperature and at atmospheric pressure.
Composition according to any one of the preceding claims, in which the fatty substance or substances other than fatty alcohols that are solid at ambient temperature, are chosen from C6-C16 lower alkanes, non-silicone oils of mineral or synthetic origin, fatty alcohols other than fatty alcohols that are solid at ambient temperature, esters of a fatty acid and/or of a fatty alcohol, or mixtures thereof.
Composition according to any one of the preceding claims, characterized in that the total content of the mixture of fatty substance varies from 25 to 80% by weight, preferably from 25 to 65% by weight and more particularly from 30 to 55% by weight, relative to the weight of the composition.
Composition according to any one of the preceding claims, characterized in that it comprises one or more dyes chosen from oxidation dyes or direct dyes or mixtures thereof, and preferably from oxidation dyes.
Composition according to the preceding claim, characterized in that it comprises, as oxidation dyes, one or more oxidation bases chosen from para-phenylenediamines, bisphenylalkylenediamines, para-aminophenols, ortho-aminophenols, heterocyclic bases and the addition salts thereof.
Composition according to the preceding claim, characterized in that it comprises one or more couplers chosen from meta-phenylenediamines, meta-aminophenols, meta-diphenols, naphthalene-based couplers and heterocyclic couplers, and also the addition salts thereof.
Composition according to any one of the preceding claims, characterized in that it comprises one or more basifying agents chosen from aqueous ammonia, alkali metal carbonates or bicarbonates, sodium hydroxide or potassium hydroxide and organic amines whose pKb at 25° C. is less than 12, preferably less than 10 and more advantageously still less than 6.
Composition according to any one of the preceding claims, characterized in that the organic amine is an alkanol amine, preferably monoethanolamine.
Process for dyeing or lightening human keratin fibres, characterized in that the composition according to any one of the preceding claims is applied.
Dependencies are inferred from the claim text.