Triphendioxazine reactive dyestuff

A reactive dyestuff of the formula ##STR277## in which Y.sub.1 is a radical of the formula ##STR278## in which A is unsubstituted C.sub.2 -C.sub.6 -alkylene or C.sub.2 -C.sub.6 -alkylene which is substituted by a substitutent selected from the group consisting of OH and OSO.sub.3 H or represents C.sub.2 -C.sub.6 -alkylene which is interrupted by at least one heteroatom selected from the group consisting of N, O, S, Se and Te or represents unsubstituted phenylene or phenylene which is substituted by a substitutent selected from the group consisting of SO.sub.3 H, COOH, C.sub.1 -C.sub.2 -alkyl and C.sub.1 -C.sub.2 -alkoxy,

• A.sup.2 is CH.sub.2 CH.sub.2,
• R.sub.1 is H, unsubstituted C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkyl which is substituted by a substituent selected from the group consisting of OH, OSO.sub.3 H, COOH, COOC.sub.1 -C.sub.4 -alkyl, CONH.sub.2, and SO.sub.3 H,
• R.sub.2 is phenyl which is unsubstituted or substituted by a substituent selected from the group consisting of SO.sub.3 H, COOH, C.sub.1 -C.sub.2 -alkyl and C.sub.1 -C.sub.2 -alkoxy,
• Q is ##STR279## in which R.sub.5 is H or C.sub.1 -C.sub.4 -alkyl or R.sub.5 and R.sub.1 together form a --CH.sub.2 --CH.sub.2 -- bridge and the grouping ##STR280## forms a piperazinediyl radical, X is F, or Cl,
• Z is --CH.dbd.CH.sub.2, or --CH.sub.2 --CH.sub.2 --OSO.sub.3 H,
• Y.sub.2 is amino;
• C.sub.1 -C.sub.4 -alkylamino which is unsubstituted or substituted by a substituent selected from the group consisting of OH, OSO.sub.3 H, SO.sub.3 H, COOH, CONH.sub.2, and C.sub.1 -C.sub.2 -alkoxy or is C.sub.1 -C.sub.4 -alkoxy which is unsubstituted or substituted by a substituent selected from the group consisting of OH, OSO.sub.3 H and C.sub.1 -C.sub.2 -alkoxy or is C.sub.1 -C.sub.4 -alkoxy which is interrupted by at least one heteroatom selected from the group consisting of N, O, S, Se and Te or is aryloxy which is unsubstituted or is substituted by a substituent selected from the group consisting of SO.sub.3 H, C.sub.1 -C.sub.2 -alkyl and C.sub.1 -C.sub.2 -alkoxy,
• m is 1 or 2,
• n is 1 or 2,
• T.sub.1 and T.sub.2 each independently is H, Cl, Br, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -alkyl, unsubstituted phenoxy or unsubstituted phenyl, and
• R.sub.3 and R.sub.4 each independently is H, C.sub.1 -C.sub.2 -alkyl C.sub.1 -C.sub.2 -alkoxy, carboxyl, Cl or Br.