| abstract |
The invention relates to the application of halogenated triphenylmethane sulfonates of formula (I), wherein R<1>, R<2>, R<3> and R<4>, independent of one another, represent a hydrogen atom, a chlorine atom, a bromine atom or a hydroxyl group. R<5>, R<6>, R<7> and R<8> independent of one another, represent a hydrogen atom, a chlorine atom or a bromine atom. X represents a hydrogen atom, alkali atom, alkaline-earth atom or an ammonium group. The inventive halogenated triphenylmethane sulfonates are used for dying fibers containing keratin, especially human hair. |