Abstract: A process for the trichromatic dyeing or printing of natural and synthetic polyamide fibre materials, which comprises using at least one red dye of the formula ##STR1## in which D,R.sub.1,R.sub.2,R.sub.3,R.sub.4 and n are as defined in claim 1, together with at least one yellow or orange dye of the formula ##STR2## in which B.sub.1,B.sub.2,E.sub.1 and X are as defined in claim 1, or ##STR3## in which Z.sub.1,Z.sub.2 and Z.sub.3 are as defined in claim 1, or mixtures of dyes of the formulae (2) and (3), or a yellow dye of the formula ##STR4## in which W.sub.1,W.sub.2,W.sub.3 and W.sub.4 are as defined in claim 1, or mixtures of dyes of the formulae (2),(3) and (4) and at least one blue dye of the formula ##STR5## in which one Y and Z.sub.4 are as defined in claim 1 are used. The process according to the invention is suitable for dying natural or synthetic polyamide materials from aqueous liquor or for printing with printing pastes; and in particular for dyeing from short liquors.

Abstract: A disperse dye composition comprising (a) a pyridone monoazo compound of the formula (I), ##STR1## wherein X.sup.1 and X.sup.2 are each hydrogen, halogen, alkyl, alkoxy or others, and R.sup.1 is alkyl, alkenyl, cycloalkyl, phenyl or anilino, and (b) a pyridone monoazo compound of the formula (II). ##STR2## wherein X.sup.3 and X.sup.4 are each hydrogen, halogen, alkyl, alkoxy or others, and R.sup.2 is alkyl, alkenyl, cycloalkyl, phenyl or anilino, optionally together with (c) a quinophthalone compound of the formula (III), ##STR3## wherein Y is hydrogen or bromine, and the ring A is unsubstituted or substituted benzene or naphthalene ring, which is useful as a yellow dye component for dyeing or printing hydrophobic fiber materials with superior dye bath stability and level dyeing property.

Abstract: Mixtures of azo pigments of the formulae ##STR1## wherein each R.sub.1 is independently C.sub.1-4 alkyl, andeach R.sub.2 is independently 1,4-phenylene; 1,4-phenylene substituted by 1 or 2 substituents independently selected from chloro, bromo, methyl, methoxy, trifluoromethyl (maximum of one) and nitro (maximum of one); 4,4'-diphenylene substituted by 1 or 2 substituents independently selected from chloro, bromo, methyl and methoxy, each substituent being in the 3- or 3'-position; 1,4-naphthylene or 1,5-naphthylene, the mixture containing from 8 to 20% mole of benzoic acid ester residues and from 92 to 80% mole of terephthalic acid ester residues, useful for pigmenting in the mass synthetic polymers, for example, polyethylene, polypropylene, polystyrene, polyvinyl chloride, synthetic leather and rubber latices.

Abstract: Mixtures of monoazo dyes suitable for dyeing and printing hydrophobic fiber materials and mixtures thereof with natural fibers contain one or more dyes of the formula I ##STR1## and one or more dyes of the formula II ##STR2## in which Hal denotes bromo or chloro; R.sup.1 and R.sup.2, independently of one another, denote methyl or ethyl; R.sup.3, R.sup.4, R.sup.5 and R.sup.6, independently of one another, denote linear alkyl having 1 to 4 carbon atoms or alkenyl having 3 or 4 carbon atoms; and R denotes methyl, acetylamino, propionylamino, i-butyrylamino, or n-butyrylamino.

Abstract: Since anthraquinonoid disperse dyes of the dark blue and navy region give only a low color strength on synthetic fibers, there was an urgent need for their coloristically advantageous substitution by high performance blue azo dyes which are suitable for being used in the carrier dyeing process.According to the invention, the systematic development of multi-component mixtures based on selected blue azo dyes from the dicyano azo series makes it possible to avoid most of the disadvantages mentioned.

Abstract: A monoazo dyestuff composition comprising at least two different individual compounds of the formula ##STR1## wherein R.sup.1 and R.sup.2, independently of each other, are linear or branched alkyl having 1 to 4 carbon atoms and R is linear or branched alkyl having 1 to 5 carbon atoms, and where said individual compounds differ from each other in at least the R moiety, has improved dyeing properties compared with the individual dyestuffs when used to dye or print hydrophobic fiber materials.

Abstract: Disazo compounds based on 4,4'-diaminodiphenyl compounds contain not less than 50% by weight of a disazo compound of the general formulaA--N.dbd.N--Z--N.dbd.N--B (I)where Z is a radical of an unsubstituted or symmetrically substituted diphenylene, A is a radical of a coupling component of a 1-phenylpyrazolone or of an acetoacetarylide, where the phenyl and the aryl radical is subtsituted by sulfo or carboxyl groups, and B is a radical of a coupling component based on 1-phenylpyrazolone or acetoacetarylide, which are free of sulfo and/or carboxyl groups.The disazo compounds can be obtained by coupling the tetrazotized diamine H.sub.2 N--Z--NH.sub.2 to the coupling component AH containing an acidic group in a medium containing a mineral acid, and then coupling the product to BH in a buffered medium (pH about 4).The novel disazo compounds are suitable as additives to pigments, in particular azo and disazo pigments, for improving the transparency and heat stability of the pigment particles, and the flow behavior.

Abstract: Mixtures of at least two different dyestuffs of the formulae ##STR1## in which the symbols have the meanings mentioned in the text represent a low-priced replacement for the known anthraquinone dyestuff Disperse Red 60.In the dyeing of mixed yarn, they are even superior with respect to sublimation fastness and cotton staining.

Abstract: A dye composition suitable for the coloration of synthetic textile materials, especially linear polyester, by conventional disperse dyeing and printing processes comprising a mixture of a dye of the formula: ##STR1## and a dye of the formula: ##STR2## wherein X and X' are each independently selected from Br, Cl and I;Q and Q' are independently C.sub.1-4 -alkyl;T is C.sub.1-4 -alkyl;R.sup.1 and R.sup.2 are each independently C.sub.1-4 -alkyl or C.sub.2-4 -alkenyl; andT.sup.1 and T.sup.2 are each independently C.sub.1-4 -alkyl or C.sub.2-4 -alkenyl.

Abstract: A process for the deposition of a film of an electrophoretic resin upon the surface of a substrate which comprises the steps of (i) electrophoretically depositing from a bath comprising water, a water miscible organic solvent and the resin, a film of the uncured resin upon the surface of the substrate; (ii) immersing said film in a solution of a resin additive in a solvent medium comprising water and a water miscible organic solvent, the amount of said resin additive dissolved in said solvent medium being sufficient for the absorption into the resin film of sufficient additive to impart the desired property to the cured resin film, the composition of said solvent medium being such that the requisite amount of additive can be dissolved therein and such that said desired property is imparted to said resin film while immersed in said solvent medium without significant damage to the resin fim; and (iii) curing the resin.

Abstract: Compounds of the formula ##STR1## wherein each A, independently, is a ##STR2## wherein R.sub.1 is hydrogen, halo, C.sub.1-4 alkyl or C.sub.1-4 alkoxy,R.sub.2 is hydrogen, halo, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, --NHCONH.sub.2 or --NHCOC.sub.1-4 alkyl,R.sub.3 is hydrogen or methoxy, andm is 0, 1 or 2,each B, independently, is a radical of a diazo or coupling component, and a and each b, independently, are 0 or 1,and metal complexes thereof, which compounds or complexes are in free acid or salt form, and mixtures thereof with a compound of the formula ##STR3## or a metal complex thereof, wherein A and b are as defined above and D is a radical of a diazo or coupling component of the benzene or 1-naphthalene series are useful for dyeing and printing hydroxy group- or nitrogen-containing organic substrates, especially cellulose fibre-containing textiles (e.g., cotton), paper and leather.

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: Colorant mixtures for use in printing inks contain isoquinoline-azo pigments of the formula I ##STR1## where X is chlorine, bromine, C.sub.1 -C.sub.4 -alkoxy or nitro,n is 1, 2 or 3, and the ring A can be substituted, and an isoquinoline-azo dye of the formula II ##STR2## where Y is C.sub.6 -C.sub.20 -alkoxy which may be interrupted by one or more oxygen atoms, and the ring B can be substituted.

Abstract: A monoazo dyestuff composition comprising at least two different individual compounds of the formula ##STR1## wherein R.sup.1 and R.sup.2, independently of each other, are linear or branched alkyl having 1 to 4 carbon atoms and R is linear or branched alkyl having 1 to 5 carbon atoms, and where said individual compounds differ from each other in at least the R moiety. The monoazo dyestuff mixtures are used for the dyeing and printing of hydrophobic fibers such as high molecular weight polyesters of their mixtures with natural fiber material.

Abstract: An aqueous liquid dye composition comprising 5 to 50% by weight of a mixture of at least one dye represented by the following formula (I), ##STR1## wherein A is a phenylene or naphthylene group unsubstituted or substituted by at least one member selected from methyl, methoxy, sulfo and carboxy, R is methyl or carboxy, Y.sub.1, Y.sub.2 and Y.sub.3 independently of one another are each hydrogen, chloro, methyl or sulfo, and Z is a group splittable by the action of an alkali, and at least one dye represented by the following formula (II), ##STR2## where A, R, Y.sub.1 Y.sub.2 and Y.sub.3 are as defined above, which can be stored for a long period of time even at lower temperatures such as 5.degree. C. or lower without crystallization of the dye.

Abstract: Point-bonding and water-jet-softening of a sheet of flash-spun polyethylene plexifilamentary film-fibril strands provide a nonwoven fabric that is particularly suited for dyeing and use in disposable protective garments. Garments made with the nonwoven fabric are comfortable and provide a good protection against particulate matter, such as air-borne asbestos particles.

Abstract: A disperse dye mixture comprising from 85 to 95% by weight of a dye of the formula: ##STR1## and from 15 to 5% by weight of a dye of the formula: ##STR2## wherein R represents --OH or --OCOR.sup.4 wherein R.sup.4 represents C.sub.1-4 -alkyl or C.sub.1-4 alkoxy;each of R.sup.1 and R.sup.2, independently, represents hydrogen, halogen, C.sub.1-4 -alkyl or C.sub.1-4 -alkoxy; andR.sup.3 represents hydrogen, halogen or nitro.

Abstract: Navy and black dye mixtures contain one or more thiophene-azo dyes of the formula ##STR1## where R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, X and Y each have defined meanings, and one or more dyes F whose absorption maximum is at a wavelength of from 390 to 520 nm, the proportion of thiophene-azo dyes being from 60 to 99% by weight, based on the total weight of thiophene-azo dyes and dyes F in the mixture.

Abstract: Azo dyes of the formula ##STR1## wherein R.sup.1 is alkyl having 1 to 4 carbon atoms; R.sup.2 is alkyl having 1 to 3 carbon atoms; R.sup.3 is alkylcarbonyloxyethyl having 1 to 3 carbon atoms in the alkyl moiety, alkoxycarbonyloxyethyl having 1 to 4 carbon atoms in the alkoxy moiety, methoxyethoxycarbonyloxyethyl or ethoxyethoxycarbonyloxyethyl; and R.sup.4 is one of the definitions of R.sup.3 or cyanoethyl; or mixtures of at least two species of said formula are used for dyeing and printing hydrophobic fiber materials.

Abstract: The invention refers to a mixture of anionic dyestuffs having a skitteriness value at pH5 of 3-4 and a combinability value at pH5 of 4-5 and to a process for dyeing a fibre material comprising wool with such a mixture of dyestuffs. These mixtures of anionic dyestuffs give surface and fibre level dyeings.

Abstract: Compounds of the formula ##STR1## and mixtures thereof, wherien p1 R.sub.1 is hydrogen, chloro or bromo, p1 R.sub.2 is hydrogen, chloro, bromo or nitro, p1 R.sub.3 is hydrogen, chloro, bromo, nitro or --SCN, p1 R.sub.4 is hydrogen, chloro or bromo, p1 R.sub.5 is hydrogen or C.sub.1-4 alkyl, and p1 R.sub.5 is C.sub.8-14 alkyl,with the provisos that (i) at least one of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is other than hydrogen, (ii) when R.sub.3 is nitro or --SCN, R.sub.2 is other than nitro, and (iii) when two or more of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are halo, then R.sub.3 is one of those halos, are useful as disperse dyes for dyeing substrates such as synthetic and semi-synthetic, hydrophobic, high molecular weight organic materials.

Abstract: A water-soluble dye mixture comprising a blue anthraquinone reactive dye represented in its free acid form by the formula: ##STR1## wherein X is --CH.dbd.CH.sub.2 or --C.sub.2 H.sub.4 W wherein W is a group removable by action of alkali and from 0.2 to 5 times by weight to said anthraquinone reactive dye of a blue formazan reactive dye represented in its free acid form by the formula: ##STR2## wherein R is a hydrogen atom or a C.sub.1 -C.sub.4 alkyl group, Y is a halogen atom, --NHC.sub.2 H.sub.4 SO.sub.3 H or ##STR3## and X is --CH.dbd.CH.sub.2 or --C.sub.2 H.sub.4 W wherein W is a group removable by action of alkali.

Abstract: Compounds of the formula ##STR1## wherein each R.sub.1 is independently hydrogen, C.sub.1-4 alkyl or C.sub.1-4 alkyl monosubstituted by hydroxy, halo, cyano or C.sub.1-4 alkoxy,each of X.sub.1 and X.sub.3 is independently halo, hydroxy, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, phenyl, phenoxy, amino or an aliphatic, cycloaliphatic, aromatic or heterocyclic amino group,each of X.sub.2 and X.sub.4 is independently an aliphatic, cycloaliphatic, aromatic or heterocyclic amino group containing at least one protonatable nitrogen atom or quaternary ammonium group,m is 0 or 1, andeach of n.sub.1 and n.sub.2 is independently 0 or 1, with the proviso that n.sub.1 +n.sub.2 is 1 or 2,wherein each halo is independently fluoro, chloro or bromo, with the provisos that (1) the total number of basic and cationic groups present as X.sub.1 -X.sub.

Abstract: A dye mixture and a method of dyeing cellulosic fibers by use of the dye mixture, the dye mixture being capable of dyeing the cellulosic fibers favorably even in the presence of a small amount of an inorganic salt at dyeing, and being composed of a blend of a red water-soluble reactive dye to be represented by the following general formula (I) in the form of free acid, and a specific yellow and/or blue water-soluble reactive dye: ##STR1## (where: each of R.sup.1 and R.sup.2 denotes a hydrogen atom or a lower alkyl group which may contain therein a substituent; R.sup.3 represents a hydrogen atom, a lower alkyl group or a halogen atom and X designates --CH.dbd.CH.sub.2 or --C.sub.2 H.sub.4 OSO.sub.3 H).

Abstract: The 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 denote linear or branched alkyl with 1 to 6 carbon atoms and R denotes linear or branched alkyl with 1 to 3 carbon atoms, is outstandingly suitable for dyeing and printing hydrophobic materials a deep blue color.

Abstract: Dyeing formulations in solid or liquid form, containing one or more red disperse dyes of the general formula (1) ##STR1## where R.sub.1 denotes an alkyl group of 1 to 4 carbon atoms, and one or more red disperse dyes of the general formula (2) ##STR2## where R.sub.2 and R.sub.3 denote independently of each other the group --CH.sub.2 --CH.sub.2 --CH.sub.2 --COOCH.sub.3 or --CH.sub.2 --CH.sub.2 --CH.sub.2 --COOC.sub.2 H.sub.5 and R.sub.

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: Cationic diazacyanine dyestuffs of the formula ##STR1## and their mixtures with the isomeric dyestuffs of the formula ##STR2## wherein R represents methyl or ethyl andX.sup.- represents a colorless anion, are suitable for dyeing polyacrylonitrile and, in particular, polyacrylonitrile-wool mixtures.

Abstract: An aqueous liquid dye composition comprising a dye represented by the following formula in a free acid form, ##STR1## wherein Y is --CH.dbd.CH.sub.2 or --CH.sub.2 CH.sub.2 X in which X is a group splittable by the action of an alkali, and a pH buffer, the dye being in the form of a lithium salt, and the liquid dye composition having a pH value of from 3 through 7 and a dye content of from 5 through 50% by weight based on the weight of the liquid dye composition, which can be stored stably for a long period of time even at a low temperature such as 0.degree. C. or lower, and a high temperature such as 40.degree. C. or higher.

Abstract: Monoazo dyestuff of the formula ##STR1## wherein R.sup.1 is 4 alkyl having 1 to 3 carbon atoms, andR.sup.2 is methyl, ethyl or alkoxy having 1 to 4 carbon atoms hich is unsubstituted or substituted by methoxy or ethoxy is useful for dyeing and printing hydrophobic fibers a blue color.

Abstract: A mixture comprising a yellow dye and a red dye each of formula I and a grey dye of formula II is employed in accordance with claim 1 for the trichromatic dyeing of leather.

Abstract: Mixtures comprising at least two dyes of formula I ##STR1## where R is unsubstituted linear C.sub.3-7 alkyl, with the proviso that at least two different dyes of formula I are each present to the extent of at least 10 mole %, based on the total molar quantity of dyes present, which are useful for dyeing and printing synthetic and semi-synthetic high molecular weight, hydrophobic organic substrates, particularly for rapid dyeing.

Abstract: A dyestuff mixture for coloring synthetic fibers a yellow color contains as component A a dyestuff of the formula ##STR1## and as component B a different yellow disperse dyestuff species.

Abstract: Polyester fibers which have a linear density of less than 0.1 den and a polyurethane content cannot be dyed in deep, bloomy blacks with the commercially available black and navy mixtures based on blue, yellow and red disperse dyes. This problem is overcome by using blue components which are derived from mixtures of selected disperse dyes of diazotized 1-amino-2,6-dicyano-4-nitrobenzene and coupling components from the series of specifically substituted N,N-dialkylanilines as a constituent for the trichromatic system.

Abstract: Navy polyester dyeings which are produced by means of dyestuff mixtures based on azo dyestuffs from 2,4-dinitro-6-cyanoaniline and 3-acylamino-dialkylaminoanilines are distinguished by a very good wash fastness on using peroxide-containing domestic washing agents. Preferably the dyestuff formulations used contain a weakly acidic buffer system.

Abstract: A monoazo dye for polyester fiber represented by formula ##STR1## and having a crystal modification characterized by an X-ray diffraction spectrum (CuK.alpha.) showing a very strong peak at an angle of diffraction (2.theta.) of about 14.2.degree., a strong peak at about 24.5.degree., and four weak peaks at about 16.9.degree., 23.6.degree., 25.3.degree., and 26.8.degree.. The monoazo dye exhibits excellent dispersibility to effect level dyeing even under high temperature and severe conditions and provides a dyed material excellent in light fastness and rubbing fastness, as well as wet fastness after post-finish.

Abstract: Novel monoazo compounds of the formula I ##STR1## and mixtures of these compounds with one another are described. The substituents X, R, R.sub.1, R.sub.2 and R.sub.3 are defined as follows: R is a phenyl or naphthyl radical which is unsubstituted or substituted by C.sub.1 -C.sub.4 -alkyl, or is a cycloalkyl radical which is unsubstituted or substituted by C.sub.1 -C.sub.4 -alkyl, or is a C.sub.1 -C.sub.8 -alkyl radical which is unsubstituted or substituted by cyano, halogen, phenyl or sulfophenyl, or is a propenyl radical which is unsubstituted or substituted by halogen, X is hydrogen or halogen, R.sub.1 is hydrogen or a C.sub.1 -C.sub.4 -alkyl radical, R.sub.2 is C.sub.1 -C.sub.8 -alkyl radical, a C.sub.1 -C.sub.4 -sulfatoalkyl radical, a C.sub.1 -C.sub.4 -sulfoalkyl radical or a cycloalkyl radical and R.sub.3 is a C.sub.1 -C.sub.4 -alkyl radical, or is a cycloalkyl radical which is unsubstituted or substituted by C.sub.1 -C.sub.

Abstract: Mixtures comprising 75 to 99% by weight of a dye of formula ##STR1## wherein X is hydrogen, chlorine, bromine or methyl, andKK is the radical of a coupling component that does not contain water solubilizing groups,and 1 to 25% by weight of a dye of formula ##STR2## wherein X and KK have the given meanings and Y is chlorine or bromine, are suitable for dyeing polyester materials.

Abstract: Compositions comprising(a) 30-70% by weight of one or more compounds of the formula ##STR1## wherein each R.sub.1 is independently C.sub.2-4 alkyl, and R.sub.3 is methyl or ethyl; and(b) 30-70% by weight of one or more compounds of the formula ##STR2## wherein R.sub.4 is chloro, bromo or iodo each R.sub.5 is independently C.sub.2-4 alkyl, and R.sub.6 is methyl or ethyl are useful for dyeing substrates comprising a synthetic or semi-synthetic hydrophobic organic material, e.g., polyester, by, for example, the rapid dyeing process.

Abstract: The invention relates to dye compositions for preparing level dyeings on carboxamide- or hydroxyl-containing fiber materials of comparatively good light fastness properties, which contain dioxazine dyes I (Ia and/or Ib) and II (one or more of IIa to IId) in a weight ratio of 90:10 to 10:90 ##STR1## where in each case independently of one another Z denotes vinyl or .beta.-sulfatoethyl,Z' denotes vinyl-SO.sub.2 or .beta.-sulfatoethyl-SO.sub.2 --,R denotes sulfo or --SO.sub.2 --NR.sup.8 R.sup.9, wherein R.sup.8 is H or substituted or unsubstituted C.sub.1 -C.sub.4 -alkyl and R.sup.9 is H, C.sub.1 -C.sub.4 -alkyl which can be substituted by sulfato, sulfo, carboxyl or phosphato, or is an arylated C.sub.1 -C.sub.4 -alkyl group which can be substituted in the aryl radical by sulfo or carboxyl,R.sup.1 denotes H or substituted or unsubstituted C.sub.1 -C.sub.4 -alkyl,R.sup.2 denotes C.sub.1 -C.sub.

Abstract: Disperse Blue 56 is an important blue dyestuff for dyeing PES fibers at the boil or under high-temperature conditions. This anthraquinonoid compound Disperse Blue 56, in addition to its advantages (high light fastness, pH/reduction insensitivity, purity of hue), has some technical disadvantages (poor leveling properties, pronounced staining of adjacent fiber, metameric red shift).By combining a plurality of blue disperse azo dyestuffs having selected structural features in the form of mixtures or mix-crystals it is possible to match the advantages of Disperse Blue 56 while substantially avoiding its disadvantages at the same time. These azo dyestuffs are based on coupling products of diazotized 2,6-substituted 4-nitroanilines with substituted N,N-dialkylanilines.

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: Novel dye mixtures which contain dyes of the general formulae I ##STR1## and II ##STR2## in the form of the alkali metal and ammonium salts, where m and n are each 0 to 4, p and q are each 1 or 2, r is 0 or 1, m+n is 2, 3 or 4, B.sup.1 and B.sup.2 are each hydrogen or chlorine, or B.sup.1 and B.sup.2 together form part of a fused benzene ring which is unsubstituted or substituted by SO.sub.3 H, R.sup.1 and R.sup.2 independently of one another are each hydrogen or unsubstituted or substituted lower alkyl or cyclohexyl, or R.sup.1 and R.sup.2 together with the nitrogen form a saturated heterocyclic structure, and Z is a reactive radical which is usually present in reactive dyes and which is bonded to the diazo or coupling component, are very useful for dyeing paper stocks.

Abstract: A method for dyeing polyester fiber materials is disclosed, comprising conducting combination dyeing by a combination of disperse dyes each capable of making up for the color fading of other disperse dye produced upon exposure to sunlight, by the color change thereof in hue caused upon the exposure to sunlight under the same condition.

Abstract: Dyestuff mixtures which contain dyestuffs (A) of the formula ##STR1## and dyestuff (B) of the formula ##STR2## in an (A):(B) weight ratio of (80 to 60):(20 to 40) useful for dyeing and printing hydrophobic fiber materials.

Abstract: The mixture of monoazo dyestuffs containing at least different individual dyestuffs of the formula ##STR1## wherein R.sup.1 is alkyl of 1 to 6 carbon atoms, cyclopentyl, cyclohexyl, fluoro, chloro, bromo, alkoxy of 1 to 4 carbon atoms or trifluoromethyl,R.sup.2 is alkyl of 1 to 3 carbon atoms andR.sup.3 and R.sup.4, independently of each other, are alkyl of 1 to 4 carbon atoms,is highly suitable for dyeing and printing hydrophobic materials.

Abstract: Improvement of a process for spin-dyeing acid-modified polymers or copolymers of acrylonitrile in which cationic quaternary dyestuffs are added to the spinning mass and spun according to the wet-spinning procedure. The improvement is characterized by using dyestuffs characterized by a migration factor M of 20 or less than 20, by a combination index K of less than 2.5 and a cation weight of more than 310. Migration factor M and combination index K are known values in the dyestuff field or can be determined. The dyestuff to be used according to the invention can belong to the most different classes of dyestuffs; they fix rapidly on the polymer, and thus they do not color, or color only to a minor extent, the coagulation, stretching and washing baths although they are soluble in water and aqueous solutions of these baths.

Abstract: The invention describes a process for dyeing or printing natural or synthetic polyamide fibre material by a rapid fixation method, which comprises the use of dyes or mixtures of dyes of the formulae as defined in the description in a continuous dyeing method or printing method, and fixing the dyes or prints by steaming for less than 3 minutes such that at least 95% fixation of the dyes is achieved. The process is particularly suitable for combination dyeing and polyamide carpet printing, and produces level dyeings and prints having excellent fastness properties.

Abstract: C.I. Disperse Yellow 54 and 64 are important yellow dyestuffs of the quinophthalone type used in coloring synthetic fibers, particularly polyamide, polyester, acrylic and acetate fibers at boiling temperature conditions. Yellow azo dyestuffs of the hydroxypyridone type, e.g., C.I. Disperse Yellow 114, 180 227 and 230 have found widespread application in the high-temperature dyeing of such synthetic fibers. It has now been found that improved tinctorial results on these synthetic fiber materials can be obtained by applying a dyeing composition derived from these yellow coloring means and comprising a mixture of 70-90 parts by weight of one or more dyestuffs of the C.I. 54 and 64 type with 5 to 30 parts by weight of an azo dyestuff of the hydroxypyridone type. These improved dyestuff compositions exhibit superior leveling, high tinctorial strength or color build-up, high dyebath exhaustion and deep shade dyeing over the individual components.

Abstract: There are described new azo dyes of the formula ##STR1## wherein R.sub.1 is an optionally substituted alkyl group, R.sub.2 is a substituted aliphatic radical, unsubstituted C.sub.3 -C.sub.10 -alkyl or cycloalkyl, and R.sub.3 and R.sub.4 are alkyl groups; and mixtures thereof with analogous azo dyes in which R.sub.4 is H; and also the production and use of these new azo dyes and of the said mixtures thereof for dyeing and printing synthetic fibres, particularly polyester fibres. The dyes are fast to light, have good affinity to the material and a good build-up, have high coloring strength and are stable to hydrolysis.