Abstract: A high strength aqueous solution comprising a first and second dye each of which, in the free acid form, is of Formula (1): ##STR1## wherein: R.sup.1 is NH.sub.2 or alkyl;W is H, alkyl or alkoxy;X is a labile atom or group;A is ##STR2## Y is H or alkyl; Z is an optionally substituted phenyl group; andn has a value of 1 to 3;provided that(i) the groups defined by A in the first and second dye are different to one another; and(ii) the solution contains less than 5% by weight of inorganic compounds.Also claimed are compositions and dyes of Formula (1).

Abstract: Triphenodioxazine reactive dyes, useful for dyeing cellulosic fibers, of the formula: ##STR1## wherein each of T.sup.1 and T.sup.2, independently, represents H, Cl, Br, F, SO.sub.3 H or an optionally substituted alkyl or aryl radical;R.sup.1 represents H or an optionally substituted hydrocarbon or heterocyclic radical;R.sup.2 represents an optionally substituted hydrocarbon radical;A represents C.sub.1-4 -alkyl, C.sub.1-4 -alkoxy, Cl, COOH or SO.sub.3 H, andn has a value of 0 or 1,the nature of the substituents being such that the dyes contain at least two SO.sub.3 H groups and at least two fibre-reactive groups.