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Dye composition in cream form comprising at least one oil and little or no solid fatty alcohol, dyeing process and suitable device

  • US 10,201,483 B2
  • Filed: 08/02/2013
  • Issued: 02/12/2019
  • Est. Priority Date: 08/02/2012
  • Status: Active Grant
First Claim
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1. A composition for dyeing keratin fibers, comprising:

  • at least one oxidation dye precursor;

    at least one ionic surfactant chosen from;

    anionic surfactants chosen from (C12-C20) alkyl sulfates, (C12-C20) alkyl ether sulfates comprising from 2 to 20 ethylene oxide units, or mixtures thereof,amphoteric or zwitterionic surfactants chosen from (C8-C20)alkylbetaines, (C8-C20)alkylamido (C3-C8) alkylbetaines, or the compounds of formula (B′

    2);


    Ra



    NH—

    CH(Y″

    )—

    (CH2)n-C(O)—

    NH—

    (CH2)n′

    -N(Rd)(Re) 



    (B′

    2) 

    wherein;

    Y″

    is chosen from the groups —

    C(O)OH, —

    C(O)OZ″

    , —

    CH2

    CH(OH)—

    SO3H, —

    CH2

    CH(OH)—

    SO3

    Z″

    ;

    Rd and Re, independently of each other, are chosen from C1-C4 alkyl or hydroxyalkyl radical;

    Z″



    is chosen from a cationic counterion derived from an alkali metal or alkaline-earth metal, an ammonium ion or an ion derived from an organic amine;

    Ra

    is chosen from a C10-C30 alkyl or alkenyl group of an acid Ra



    C(O)OH; and

    n and n′

    , independently of each other, are integers ranging from 1 to 3, ormixtures thereof;

    at least one oil, present in a concentration of about 10% to about 70% by weight, relative to the total weight of the composition;

    optionally at least one solid fatty alcohol chosen from saturated linear alcohols comprising from 8 to 30 carbon atoms, present in an amount of up to about 0.5% by weight, relative to the weight of the composition; and

    at least one thickening polymer,wherein such composition is free of any oxidizing agent other than atmospheric oxygen and is in cream form.

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