Abstract: The present invention relates to valuable monoazo dyes of the general formula I ##STR1## in which R is methyl or ethyl,R.sup.1 is methyl, ethyl, methoxyethyl or ethoxyethyl,R.sup.2 is methyl or ethyl, if n is equal to 0, and hydrogen, if n is equal to 1,R.sup.3 is methyl, ethyl, n-propyl or i-propyl andn is 0 or 1,to mixtures of dyes of the general formula I and to the preparation of these dyes and their mixtures and to their use for the dyeing of hydrophobic fiber materials.

Abstract: The azo dyes of the formula I ##STR1## where X.sup.1 is for example hydrogen or (C.sub.1 to C.sub.6)alkyl,X.sup.2 is cyano or nitro,X.sup.3 is for example hydrogen or (C.sub.1 to C.sub.4)alkoxy,X.sup.4 is for example (C.sub.1 to C.sub.4)alkoxy, chlorine or hydrogen,R.sup.1 is hydrogen or (C.sub.1 to C.sub.6)alkyl,R.sup.2 is hydrogen or (C.sub.1 to C.sub.6)alkyl andR.sup.3 is for example (C.sub.1 to C.sub.8)alkyl,are highly suitable for dyeing and printing hydrophobic fiber materials.

Abstract: The present invention relates to a process for the preparation of finished dyeings of high fastness to thermomigration on fibre materials consisting completely or partly of polyester, characterized in that the material is dyed with one or more dyestuffs of the general formula I ##STR1## wherein R denotes linear (C.sub.1 -C.sub.3)-alkyl or (C.sub.3 -C.sub.6)-alkyl which is interrupted by an oxygen atom andR.sup.1 denotes (C.sub.1 -C.sub.4)-alkyl,and the dyeing thus obtained is then finished.

Abstract: Coupling products of diazotized o- or p-toluidines to 3-hydroxy-2-naphthoic acid p-anisidide do not produce optimum dyeing properties in HT exhaustion dyeing of wound packages of synthetic fiber materials. Filtration occurs time after time under critical conditions, since these single dyestuffs and also mixtures of these with one another build up too slowly in the heating-up phase.A bright red multi-component system of the same color shade, which exhibits a significantly improved exhaustion capacity by synergism during HT dyeing of wound packages and no longer presents difficulties in respect of filtration, can be obtained by mixing monoazo dyestuffs which are obtained by coupling diazotized aniline and p-toluidine in each case to 3-hydroxy-2-naphthoic acid p-anisidide.

Abstract: The invention relates to mixtures of monoazo dyes, which are characterized in that they consist of one or more dyes of the general formula I ##STR1## and one or more dyes of the general formula II ##STR2## where R.sup.1 is methyl, ethyl, n-propyl or i-propyl,R.sup.2 is ethyl or n-propyl,m is 2 or 3 andn is 1 or 2, with the proviso that m+n is 4,processes for preparing same and the use thereof for dyeing and printing hydrophobic fibre materials and blends thereof with natural fibre materials.

Abstract: Monoazo dyestuffs useful for dyeing and printing hydrophobic fibers have the formula ##STR1## in which R.sup.1 denotes alkyl having 1 to 3 carbon atoms, R.sup.2 and R.sup.3 independently of one another denote alkyl having 2 to 5 carbon atoms and R.sup.4 denotes methyl or ethyl.

Abstract: The present invention relates to a process for the dyeing and printing of blended fabrics made of polyester and natural fibre materials, characterized in that the polyester portion of the blended fabric is dyed and printed using one or more disperse dyes of the general formula I ##STR1## in which R is methyl, ethyl or alkyl having 2 or 3 C atoms, which is substituted by alkoxy having 1 to 3 C atoms, andR.sup.1 is alkyl having 1 to 3 atoms.

Abstract: The dyestuff mixture contains at least one dyestuff of the formula I ##STR1## and at least one dyestuff of the formula II ##STR2## wherein X and Y denote chlorine or bromine,R.sup.1 and R.sup.5 denote methyl or ethyl,R.sup.2 and R.sup.6 denote methyl, ethyl, n-propyl or i-propyl andR.sup.3, R.sup.4, R.sup.7 and R.sup.8 denote, for example, C.sub.1 - to C.sub.11 -alkyl, in the weight ratio of I:II=(5 to 95):(95 to 5), and is, for example, outstandingly suitable for dyeing synthetic fibres.

Abstract: Hydrophobic textile materials can be dyed or printed with one or more monoazo dyes of the formula ##STR1## in which R.sup.1 is fluoro, chloro or bromo;R.sup.2 is hydrogen or chloro; andR.sup.3 is allyl, alkyl having 1 to 4 carbon atoms, alkoxyalkyl having 2 to 4 carbon atoms in the alkyl portion and 1 to 4 carbon atoms in the alkoxy portion or cyanoalkyl having 2 to 4 carbon atoms.

Abstract: A mixture of monoazo dyestuffs which contains one or more dyestuffs of the formula I ##STR1## and one or more dyestuffs of the formula II ##STR2## wherein R.sup.1 and R.sup.2 independently of one another each denote linear or branched alkyl with 1 to 6 carbon atoms, R denotes linear or branched alkyl with 1 to 5 carbon atoms and Hal denotes chloro or bromo, are outstandingly suitable for dyeing and printing hydrophobic materials.

Abstract: Synthetic fiber materials are effectively colored by dyeing or printing with a dyestuff mixture containing at least two separate dyestuffs (I) and (II) in a weight ratio of (I):(II) of from (20 to 99):(80 to 1) wherein:(I) is at least one dyestuff of the formula ##STR1## and (II) is at least one dyestuff of the formula ##STR2## in which X and Y are the same or different and each is independently chloro and bromo:R.sup.1 and R.sup.

Abstract: Synthetic fiber materials are effectively colored by dyeing or printing with a dyestuff mixture containing at least two separate dyestuffs (I) and (II) in a weight ratio of (I):(II) of from (20 to 99):(80 to 1) wherein:(I) is at least one dyestuff of the formula ##STR1## and (II) is at least one dyestuff of the formula ##STR2## in which X and Y are the same or different and each is independently chloro and bromo:R.sup.1 and R.sup.