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

A process for dyeing keratin fibers comprising:

• (a) preparing a cosmetic mixture by mixing:
• a dye composition comprising at least one oxidation dye precursor, and
• an oxidizing composition comprising at least one chemical oxidizing agent;
• and
• (b) applying said cosmetic mixture to said keratin fibers;
• wherein the mixture of the two compositions further comprises at least one nonionic oxyalkylenated saturated or unsaturated C8-C40 fatty acid amide;
• and
• further wherein at least one of the compositions is dispensed from a pressurized container prior to said mixing.

A device for dispensing a cosmetic mixture for dyeing keratin fibers, said cosmetic mixture comprising:

• a dye composition comprising at least one oxidation dye precursor,
• an oxidizing composition comprising at least one chemical oxidizing agent, and
• at least one non-ionic oxyalkylenated saturated or unsaturated, linear or branched C8-C40 fatty acid amide;
• said device comprising:
• a first container containing the dye composition comprising at least one oxidation dye precursor, and
• a second container containing the oxidizing composition comprising at least one chemical oxidizing agent,
• wherein at least one of the first and second containers is pressurized and equipped with a component for dispensing the cosmetic mixture of the dye and oxidizing compositions.