DIRECT HAIR DYES AND USE THEREOF
The invention relates to colouring and toning agents for keratinous fibres, in particular human hair, comprising at least one hydroxyanthraquinone derivative of formula (I), as a direct dye, in a cosmetically acceptable vehicle, where R = a group of formula (II), where R<1> to R<4> = independently, H; OH; C1 to C4 alkoxy; C1 to C4 alkyl; C1 to C4 fluoroalkyl; carboxy; NO2; halogen; a group of formula SR<5>, where R<5> = H or C1 to C4 alkyl; a group of formula PhCH2-COOR<6>, where R<6> = H, C1 to C4 alkyl or a physiologically acceptable cation or, any two neighbouring groups of R<1> to R<4> form a methylenedioxy ring and X = halogen. The inventive agents permit hair colouring with outstanding fastness.