Oxidation dye composition comprising a polycondensate of ethylene oxide and of propylene oxide, and an oxyethylenated fatty acid amide

A process for dyeing hair, comprising:

• (1) mixing:
• (a) at least one oxidizing agent and
• (b) a composition comprising:
• (i) at least one oxidation dye precursor and
• (ii) at least one polycondensate of ethylene oxide and of propylene oxide of formula (A)
• H—(O—CH2—CH2)a—(O—CH(CH3)—CH2)b—(O—CH2—CH2)a′—OH (A)
• wherein a and a′ range from 2 to 150 and b ranges from 1 to 100;
• and
• (c) at least one oxyethylenated rapeseed fatty acid amide comprising from about 1 to about 20 mol of ethylene oxide,
• wherein the weight ratio of the at least one oxyethylenated rapeseed fatty acid amide and the at least one polycondensate of ethylene oxide and of propylene oxide ranges from about 1 to about 20;
• and
• (2) applying the resultant mixture to hair.

A two-compartment device comprising:

• (1) in a first compartment, a first composition comprising:
• (a) at least one oxidation dye precursor;
• (b) at least one polycondensate of ethylene oxide and of propylene oxide of formula (A)
• H—(O—CH2—CH2)a—(O—CH(CH3)—CH2)b—(O—CH2—CH2)a′—OH (A)
• wherein a and a′ range from 2 to 150 and b ranges from 1 to 100;
• and
• (c) at least one oxyethylenated rapeseed fatty acid amide comprising from about 1 to about 20 mol of ethylene oxide,
• wherein the weight ratio of the at least one oxyethylenated rapeseed fatty acid amide and the at least one polycondensate of ethylene oxide and of propylene oxide ranges from about 1 to about 20;
• and
• (2) in a second compartment, a second composition comprising at least one oxidizing agent.