Triphenodioxazine acid dyes

Abstract

Triphenodioxazine dyes which, in the free acid form, have the formula: ##STR1## wherein A is Cl or Br; Y is cyclopentylene, cyclohexylene or (CH.sub.2).sub.x where x is 2, 3 or 4; and Z is NRCO.sub.2 R.sup.1 or ##STR2## wherein R is H, optionally substituted alkyl or optionally substituted aryl; R.sup.1 is optionally substituted alkyl, optionally substituted cycloalkyl or optionally substituted aryl; and R.sup.2 is --CH.dbd.CH--,--CH.dbd.CH--CH.sub.2 --,--(CH.sub.2)--.sub.2-4 or a 1,2-radical of a 5 or 6 membered carbocyclic compound; or, when Y is cyclopentylene or cyclohexylene, Z may also be H or alkyl, alkoxy, aryl, aryloxy, cycloalkyl, cycloalkoxy or amino, all of which may be optionally substituted.

Dependencies are inferred from the claim text.