Abstract: Dyestuffs of the formula (I) ##STR1## wherein Z represents SO.sub.2 or CO,A represents optionally substituted alkyl or aryl andp denotes 1 or 2,which are particularly suitable for the bulk dyeing of plastics, in particular thermoplastics, have been found.

Abstract: Dyestuffs of the formula (I) ##STR1## wherein Z represents SO.sub.2 or CO,A represents optionally substituted alkyl or aryl andp denotes 1 or 2,which are particularly suitable for the bulk dyeing of plastics, in particular thermoplastics, have been found.

Abstract: Dyestuffs of the formula ##STR1## wherein Z denotes a radical to complete a 3,4- or 2,3-pyridinylene, a 4,5-pyrimidinylene, a 3,4- or 4,5-pyridazinylene or a 2,3-pyrazinylene system andX, Y, m and n have the meanings given in the description,which are particularly suitable for bulk dyeing plastics, in particular thermoplastics, have been found.

Abstract: Phthaloperinone dyestuffs of the general formula (I) ##STR1## wherein Z denotes SO.sub.2 or CO,A represents optionally substituted alkyl or aryl,and the other substituents have the meanings given in the description, are prepared by condensation of corresponding phthalic acids or functional derivatives thereof and optionally substituted 1,8-naphthalene-diamines.The dyestuffs according to the invention have very good fastnesses and are employed in processes for bulk dyeing plastics.

Abstract: Isoindolazines which, in one of their tautomeric structures, have the formula ##STR1## where the rings designated X and T can be substituted andA.sup.1 and A.sup.2 represent the divalent radical of a compound having two replaceable hydrogen atoms on a C or N atom, in particular the divalent radical of an active methylene compound, of an amine, of a hydrazine, of a hydrazide or of a hydrazone,salts and complexes of these compounds, processes for their preparation, and their use as pigments.

Abstract: 1-Hydroxy-4-amino-5- or -8-nitroanthraquinone is obtained in high yields and in high purity when 1,8-dinitroanthraquinone or 1,5-dinitroanthraquinone respectively is reacted below 80.degree. C. in oleum in the presence of boric acid with reducing agents. The products of the process are valuable polyester dyestuffs as well as dyestuff intermediate products.

Abstract: Dyestuff formulations which contain a dyestuff with at least one of the groupings of the formula ##STR1## and an emulsifying polar-nonpolar compound, are outstanding suitable for dyeing synthetic fibres since they are well soluble in the dyeing bath and do not require expensive formulation process for their preparation.In the formulae, the symbols have the following meanings:G is a bridge member,A is alkylene,X is hydrogen, Y, --COY or --CONR.sub.1 R.sub.2,Y is alkyl, cycloalkyl, aralkyl or aryl,R.sub.1 is hydrogen or Y,R.sub.2 is hydrogen or alkyl andn is a number from 1 to 7, with the proviso that n is at least 2 if X is --COY.

Abstract: In order to dye and print cellulose fibres swollen with water-miscible swelling agents or mixed fibres containing these fibres, the fibres are treated with dyestuffs which are free from sulphonic acid groups and carboxylic acid groups, of the general formula ##STR1## wherein R denotes hydrogen or optionally substituted alkyl, aryl or acyl,Hal denotes chlorine or bromine,n denotes a number from 0 to 2 and the ring B can optionally be further substituted or fused, with the proviso that if R denotes hydrogen or methyl, n must be >0 and/or B must be further substituted,and the dyestuffs are fixed by heat treatment.

Abstract: Dyestuffs, which are free from nitro groups and sulphonic acid groups, of the formulaF--Z--(OA).sub.n --OR IwhereinF denotes an anthraquinone nucleus which contains at least one auxochromic group in the .alpha.-position,Z denotes a direct bond or a bridge member,A denotes alkylene,R denotes alkyl, aralkyl, cycloalkyl, aryl or acyl andn denotes 3 to 8,with the proviso that R does not represent aralkyl if n denotes the number 3 and the number of the auxochromic groups is two, have a melting point below 140.degree. C., in particular below 100.degree. C., and are outstandingly suitable for dyeing and printing synthetic fibre materials, in particular those of polyesters, on which they produce dyeings with good fastness to sublimation, washing and light.The dyestuffs are advantageously employed in the form of liquid or pulverulent preparations which contain, in addition to the dyestuff, emulsifying polar/non-polar compounds and, if appropriate, formulating agents and extenders.

Abstract: The invention relates to mixtures of water-insoluble anthraquinone dyestuffs of the formula ##STR1## in which A and B are amino or hydroxylR is alkyleneX is a direct bond, oxygen, sulphur or iminoAr is arylD.sub.1 and D.sub.2 are hydrogen or halogen,Hal represents chlorine or preferably bromine andn represents on average a number from 0.1 to 2.5.The preferred variant for the preparation of the dyestuffs (wherein Hal represents bromine) is characterized in that anthraquinone compounds of the formula ##STR2## are brominated on the aryl radical Ar. The dyestuffs are outstanding suitable for the dyeing of polyester fibers.

Abstract: The invention relates to water-insoluble anthraquinone dye-stuffs of the formula ##STR1## wherein A denotes an optionally substituted cycloalkylene group,n and m denote numbers from 0 to 4 andZ.sub.1 and Z.sub.2 denote hydrogen or halogen.The dyestuffs are outstandingly suitable for dyeing synthetic fibre materials, such as those made of cellulose esters, polyamides and polyurethanes and above all those made of aromatic polyesters, according to conventional dyeing processes.

Abstract: Polycyclic dyestuffs free from sulphonic acid groups of the formula ##STR1## in which A denotes an arylene radical andB--so.sub.2 --or denotes an arylene radical substituted by an aryloxysulphonyl group,Are suitable for dyeing organic materials, especially for dyeing and printing hydrophobic fibre materials and for bulk-dyeing synthetic materials.

Abstract: Anthraquinone dyestuffs of the formula ##SPC1##In which X.sub.1 denotes hydroxyl or amino, X.sub.2 denotes hydroxyl, amino, alkylamino, cycloalkylamino, arylamino, acylamino, alkylmercapto or arylmercapto, R denotes hydrogen, alkyl, aralkyl, cycloalkyl or aryl, Z denotes alkylene, Ac denotes acyl and Y denotes hydrogen or halogen, and in which the ring A can optionally by substituted by halogen, as well as their preparation and use for the dyeing of synthetic fibre materials.

Abstract: Anthraquinone dyestuffs of the formula ##SPC1##In whichX.sub.1 and X.sub.2 denote an amino or hydroxyl group,Y denotes a bridge member,A denotes a heterocyclic radical ##SPC2##Which can optionally be substituted further by non-ionic substituents,Z denotes oxygen, sulphur or a sulphonyl, imino or alkylimino group,Q denotes hydrogen, chlorine or bromine,R.sub.1 and R.sub.2 denote hydrogen, alkyl, aralkyl, cycloalkyl, aryl or heterylAnd whereinR.sub.1 and R.sub.2 can also form, conjointly with the nitrogen atom, the remaining members of a heterocyclic ring as well as a process for their preparation and their use for dyeing synthetic fiber materials.

Abstract: Quinophthalone dyestuffs of the formula ##SPC1##In which Ac denotes an acyl radical, X denotes a non-ionic substituent, Y denotes hydrogen or halogen and n denotes a number from 0 to 3 as well as their production and their use for dyeing and printing organic materials.

Abstract: Anthraquinone dyestuffs of the formula ##STR1## in which X.sub.1 denotes hydroxyl or amino, X.sub.2 denotes hydroxyl, amino, alkylamino, cycloalkylamino, arylamino, acylamino, alkylmercapto or arylmercapto, R denotes hydrogen, alkyl, aralkyl, cycloalkyl or aryl, Z denotes alkylene, Ac denotes acyl and Y denotes hydrogen or halogen, and in which the ring A can optionally by substituted by halogen, as well as their preparation and use for the dyeing of synthetic fibre materials. The dyed materials show good fastness to light and sublimation.