Abstract: Compounds of the formula ##STR1## where R.sub.1, R.sub.2 and R.sub.3 are each independently of the others hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, halogen or C.sub.1 -C.sub.4 alkanoylamino,R is hydrogen or unsubstituted or C.sub.1 -C.sub.4 alkoxy substituted C.sub.1 -C.sub.12 alkyl or an --(alk)--NA.sup..sym. X.sup..crclbar. radical or,R forms together with an R.sub.1 in the ortho-position relative to the amino group a partially hydrogenated, substituted or unsubstituted 5- to 7-membered heterocyclic ring which may contain additional N, S or O atoms as ring members, (alk) is a substituted or unsubstituted C.sub.1 -C.sub.6 alkylene radical,--NA.sup..sym. is the radical of an amino compound of formula ##STR2## where R.sub.4, R.sub.5 and R.sub.6 are each independently of the others substituted or unsubstituted C.sub.1 -C.sub.6 alkyl, substituted or unsubstituted C.sub.7 -C.sub.12 aralkyl or substituted or unsubstituted aryl, R.sub.8 and R.sub.

Abstract: There are described new anthraquinone compounds which, in the form of the free acid, correspond to the formula I ##STR1## wherein the X's independently of one another are each a straight-chain or branched-chain alkyl group having 1 to 4 carbon atoms, Y is hydrogen or is the same as X, and wherein the phenyl rings a can also be substituted by one or more halogen atoms, the production and use thereof, and also dye solutions containing a solvent mixture consisting of one or more aprotic solvents, at least one glycol and/or glycol ether, and optionally water and further additives, which solutions contain in each case a mixture of two anthraquinone dyes which, in the form of the free acid, correspond to the formulae I and IV ##STR2## wherein the X's independently of one another are each a straight-chain or branched-chain alkyl group having 1 to 4 carbon atoms, Y is hydrogen or is the same as X, and wherein the phenyl rings a can also be substituted by one or more halogen atoms.

Abstract: There are described new anthraquinone compounds which, in the form of the free acid, correspond to the formula I ##STR1## wherein the X's independently of one another are each a straight-chain or branched-chain alkyl group having 1 to 4 carbon atoms, Y is hydrogen or is the same as X, and wherein the phenyl rings a can also be substituted by one or more halogen atoms, the production and use thereof, and also dye solutions containing a solvent mixture consisting of one or more aprotic solvents, at least one glycol and/or glycol ether, and optionally water and further additives, which solutions contain in each case a mixture of two anthraquinone dyes which, in the form of the free acid, correspond to the formulae I and IV ##STR2## wherein the X's independently of one another are each a straight-chain or branched-chain alkyl group having 1 to 4 carbon atoms, Y is hydrogen or is the same as X, and wherein the phenyl rings a can also be substituted by one or more halogen atoms.