Patent ID: 7553339

Claim:
A method of dyeing or printing textile fibre materials, which comprises bringing the fibre material into contact with (a) an anionic group containing reactive dye of formula (b) at least one compound which reduces the ionic character of the anionic group which is an Mg 2(+) , Ca 2(+) , Sr 2(+) , Ba 2(+) , Mn 2(+) , Cu 2(+) , Zn 2(+) , Ni 2(+) , Cd 2(+) , Co 3(+) , Al 3(+) , Sn 2(+) or Cr 3(+) salt in the form of a chloride, sulfate, nitrate, acetate, formate, tartrate or lactate, and (c) at least one nucleophilic compound of formula H 2 N—B—NH 2 (11), wherein B is a C 2 -C 12 alkylene radical which may be interrupted by 1, 2 or 3 —O— moieties and which is unsubstituted or substituted by hydroxy or by sulfato.