PROCESS FOR DYEING OR LIGHTENING KERATIN FIBRES IN TWO PARTS, USING AN OIL-RICH DIRECT EMULSION BASED ON A SOLID FATTY ALCOHOL AND ON OILS OF DIFFERENT POLARITY
The present invention relates to a process for dyeing or lightening keratin fibres, which consists in extemporaneously mixing at the time of use two compositions (A) and (B) and in 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 mixture (A)+ (B) with: ⋅ (A) representing a composition in direct emulsion form whose oil content is at least 30% by weight relative to the weight of composition (A), and comprising: i) at least one fatty alcohol that is solid at room temperature and at atmospheric pressure ii) at least one oil with a polarity ε of greater than 2.5 iii) at least one oil with a polarity ε of less than 2.5 and in which the weight ratio ℛii)/iii) of oils ii)/iii)is between 0.1 and 10 iv) at least one surfactant v) at least one basifying agent and vi) optionally at least one dye and ⋅ composition (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.La présente invention a pour objet un procédé de coloration ou déclaircissement de fibres kératiniques consistant à mélanger extemporanément au moment de lemploi deux compositions (A) et (B) et à appliquer ledit mélange sur lesdites fibres ledit mélange comprenant au moins 25 % en poids de corps gras par rapport au poids total de la composition issue du mélange
