Abstract:
The present invention relates to a cosmetic composition for dyeing keratin fibres, in particular human keratin fibres such as the hair, comprising: a) one or more fatty substances; b) one or more surfactants; c) one or more oxidation bases; d) one or more couplers based on 2-hydroxynaphthalene derivatives or particular phenol derivatives, acylaminophenol derivatives or quinoline derivatives; f) one or more basifying agents; e) optionally one or more chemical oxidizing agents; and the fatty substance content representing in total at least 25% by weight relative to the total weight of the formulation. The present invention also relates to a process using this composition, and to a multi-compartment device that is suitable for performing the said process.
Abstract:
One subject of the present invention is a method for the two-step dyeing of keratin fibres, comprising the application: (1) in a first step, of a composition A comprising one or more organic compounds (I) having a value of the Hansen solubility parameter dH of less than or equal to 16 MPa1/2 and having a molecular weight of less than 250 g/mol, and one or more naphthalene derivatives of formula (II): (2) then, in a second step, of a composition B having a pH greater than or equal to 8. Another subject of the invention is a device suitable for implementing such a method.
Abstract:
The invention relates to a method for dyeing or lightening human keratinous fibres in which: (a) an anhydrous composition (A) comprising one or more fatty substances and one or more surfactants; (b) a composition (B) comprising one or more oxidizing agents and optionally one or more fatty substances; (c) a composition (C) comprising one or more alkaline agents and optionally one or more oxidation dyes and/or one or more direct dyes, are applied to the said fibres, the said fatty substance or substances being chosen from volatile linear alkanes, additional fatty substances and their mixtures, and it being understood that one or more volatile linear alkanes is or are present in at least one of the compositions (A), (B) or (C) and preferably in at least one of the compositions (A) and (B). The invention also relates to a device comprising the three compositions (A), (B) and (C) in three different compartments and to a ready-for-use composition resulting from the mixing of the compositions (A), (B) and (C).
Abstract:
The present invention provides a method for the cosmetic treatment of human keratinous material comprising the steps which consist in: a) applying at least one cosmetic composition comprising a photochromic compound, to the human keratinous material, said photochromic compound comprising : • a photocleavable function, in particular chosen from carbamate, carbonate or ester functions, and • a chromophore precursor covalently bonded to said photocleavable function, b) irradiating the treated area with light radiation, in particular radiation having a wavelength between 280 and 450 nm, so as to photocleave the photochromic compound and produce a compound of different color.
Abstract:
The present invention relates to a method for lightening or dyeing keratinous fibers, in the presence of an oxidizing agent, characterized in that a formulation obtained after mixing the following compositions (A), (B) and (C): (a) an anhydrous cosmetic composition (A) comprising one or more fatty substances and one or more surfactants, (b) a cosmetic composition (B) comprising the combination of ammonium (bi)carbonate and one or more organic or inorganic bases or one of its/their salts, and (c) a cosmetic composition (C) comprising one or more oxidizing agents and one or more fatty substances; the content of fatty substances in the formulation being at least 35% by weight, with respect to the total weight of this formulation is applied to said fibers. The present invention also relates to a three- or four-compartment device.
Abstract:
One subject of the present invention is a method for the two-step dyeing of keratin fibres, comprising the application: (1) in a first step, of a composition A comprising one or more organic compounds (I) having a value of the Hansen solubility parameter δ H of less than or equal to 16 MPa 1/2 and having a molecular weight of less than 250 g/mol, and one or more naphthalene derivatives of formula (II): (2) then, in a second step, of a composition B having a pH greater than or equal to 8. Another subject of the invention is a device suitable for implementing such a method.
Abstract:
The present invention relates to a composition for the colouring of keratin fibres, notably hair, that comprises a phenoxazinone dye of formula (I) as well as the use of this dye for hair colouring. The invention thus makes it possible to obtain coloration that respects the nature of the hair and offers strong shades, which are resistant and have low selectivity.
Abstract:
The invention relates to a composition for dyeing keratin fibres, in particular human keratin fibres such as the hair, comprising, in a suitable dyeing medium, at least one tetraazapentamethine cationic direct dye, and which is characterized in that it also contains at least one oxidation base and at least one particular coupler. The invention also relates to the processes and dyeing devices using the said composition.
Abstract:
L'invention a pour objet une composition tinctoriale comprenant u ne base d'oxydation du type diaminopyrazole et un agent oxydant de nature enzymatique du type oxydoréductase. L'invention a aussi pour objet l'utilisation de cette composition pour la teinture des fibres kératiniques ainsi que le procédé de teinture mettant en oeuvre cette composition.
Abstract:
A hydroxypropylated 2-nitro-p-phenylenediamine of formula (I), wherein R1 is a C1-4 alkyl, (beta)-hydroxyethyl, (beta)-hydroxypropyl or (gamma)-hydroxypropyl radical; R2 and R3 independently represent a (beta)-hydroxyethyl, (beta)-hydroxypropyl, (gamma)-hydroxypropyl or Ÿg(b,g)-dihydroxypropyl radical, with the proviso that at least one of R1, R2 and R3 is a (gamma)-hydroxypropyl radical, while the other two are not both a (beta)-hydroxyethyl radical; and cosmetically acceptable salts thereof. This compound may be used for directly dyeing hair to give blue through purplish blue shades which are wash-fast, light-fast, weatherproof and sweat resistant.