| abstract |
New dyeing compositions, containing improved levellingnagents, for dyeing of keratinous fibres, especially humannhair, making more uniform the colour of the dyed fibres, are.nprovided. The compositions contain one or more compounds ofnthe following formulae (I) and (II):n n n wherein n R is an alkyl group or alkenyl group having 6 to 24ncarbon atoms; n R', R'' and R''' are independently a hydrogen atomnor an alkyl group having 1 to 5 carbon atoms whichnis optionally hydroxylated; n m has a value in the range of 4 to 10; n n has a value in the range of 0 to 10; and n p has a value in the range of 1 to 10, with thenproviso that when p = 1, at least one of R', R''nand R''' is not a hydrogen atom. |