Abstract: Oxobenzofuranylidene-dihydroindolones of formulae trans-(Ia) and cis-(Ib) 1

Abstract: A dye compound excellent in transfer property and color fastness against light, a yellow dye excellent in light absorption property, a yellow dye compound for thermal transfer dye donating material excellent in solubility and a dye compound which can be synthesized with ease from readily-available source materials are provided. A dye compound of the present invention is expressed by the general formula (1): or a salt thereof, wherein R1, R2, R3 and R4 independently represent a hydrogen atom or a substituent.

Abstract: The invention provides near infrared absorbers showing high light-to-heat conversion efficiency and high sensitivity to laser beams whose emission region is within the range of 750 nm to 900 nm, plates for direct printing plate making, and novel compounds which can be used in such absorbers or plates. The compounds are polymethine compounds of the general formula (I) shown below and the near infrared absorbers comprise the polymethine compounds.

Abstract: Diiminoisoindoline derivatives or 3-aminoisoindolone derivatives, or tautomeric forms thereof, used as oxidizing-agent-free dye precursors in dyeing keratin fibers, in particular human keratin fibers such as the hair, without an oxidizing agent, in the presence of compounds containing a primary or secondary amine function; dye compositions containing these compounds and to the dyeing devices and processes used.

Abstract: The present invention relates to a mixture of dyes to form a black image. In particular, the present invention relates to a mixture that gives a black image having favorable stability to light and sufficient high density, and a thermal transfer recording material employing the mixture of dyes.

Abstract: Process for increasing the sun protection factor of cellulosic fibre materials by treating the cellulosic fibre materials with at least one direct dye and at least one UV absorber.

Abstract: A process for coloring a synthetic textile material or fiber blend thereof which comprises applying to the synthetic textile material a dye, which is free from water solubilizing groups, carrying at least one --SO.sub.2 F group provided that the dye is not an azo, bisazo or anthraquinone dye.

Abstract: This invention relates to a process for the preparation of storage-stable dye dispersions of alkali metal salts of anionic azo direct dyes by(a) preparing an aqueous slurry of an alkali metal salt of an azo direct dye, said salt having a solubility in water at 25.degree. C. of about 0.1 to about 15% by weight, by azo coupling one or more aromatic diazonium salts with one or more couplers while maintaining a pH of at least about 5 by adding a basic alkali metal compound in the absence of a nitrogen-containing base;(b) optionally, stirring the aqueous slurry at a temperature of about 5.degree. C. to about 100.degree. C. for up to about six hours;(c) optionally, adjusting the temperature of the aqueous slurry to about 5.degree. C. to about 40.degree. C.; and(d) adding to the aqueous slum/a viscosity enhancing agent in an amount sufficient to obtain a viscosity, determined at a temperature of about 20.degree. to about 25.degree. C.

Abstract: The invention relates to a process for dyeing or printing hydroxyl group containing fiber materials, which comprises using at least one yellow or orange dyeing dye of formula ##STR1## wherein the substituents are as defined in claim 1, together with at least one blue dyeing dye and/or at least one red dyeing dye. Level dyeings and prints with good allround fastness properties are obtained by the process of the invention.

Abstract: Dye mixtures comprising at least six isochromatic dyes of the formula ##STR1## where D is the radical of a diazo component of the aniline, aminothiophene, aminothiazole, aminoisothiazole or aminobenzisothiazole series andone of the radicals X.sup.1 and X.sup.2 is amino and the other is a radical of the formula ##STR2## where L is unsubstituted or substituted C.sub.2 -C.sub.8 -alkyleneR.sup.1 is hydrogen or unsubstituted or substituted C.sub.1 -C.sub.4 -alkyl andR.sup.2 is hydrogen, C.sub.1 -C.sub.4 -alkyl, benzyl, phenyl, or C.sub.1 -C.sub.8 -alkanoyl,and the use thereof for dyeing or printing textile materials, and dye mixtures comprising thienylazopyridine dyes and anthraquinone dyes and the use thereof for dyeing or printing textile 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: The invention relates to a dye mixture comprising at least one dye of the formula ##STR1## in which R.sub.1 and R.sub.2, independently of one another, are hydrogen or substituted or unsubstituted C.sub.1 -C.sub.8 alkyl or phenyl, R.sub.3 is hydrogen or substituted or unsubstituted C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.7 cycloalkyl or phenyl, R.sub.4 is hydrogen or a radical of the formula ##STR2## R.sub.5 is hydrogen or substituted or unsubstituted C.sub.1 -C.sub.8 alkyl or phenyl, and benzene rings I and II may be further substituted, together with at least one dye of the formulae (2) to (6) given in the description.The dye mixtures are suitable for the dyeing or printing of natural and synthetic polyamide fibre materials, in particular in combination with other dyes.

Abstract: The novel compound of the general formula I ##STR1## where X is fluorine, chlorine, bromine, SO.sub.2 Y or unsubstituted or substituted hydroxyl or mercapto, Y is alkyl, alkenyl, cycloalkyl, aralkyl, aryl, chlorine or unsubstituted or substituted hydroxyl or amino, R is hydrogen, C.sub.1 -C.sub.4 -alkyl or a radical which can be introduced by electrophilic substitution or a radial of the formula --CH.dbd.T, in which T is a radical of a methyleneactive compound or of an amine, and R.sup.1 is hydrogen, acyl or unsubstituted or substituted alkyl, cycloalkyl or alkenyl, and R.sup.2 is hydrogen or unsubstituted or substituted alkyl or alkenyl, or R.sup.1 and R.sup.2 together with the nitrogen form a saturated heterocyclic structure and R.sup.1 and R.sup.2 together form a radical of the formula ##STR2## are useful as diazo and/or coupling components or generally as dye intermediates, depending on their constitution.

Abstract: A colored polymer containing repeat units derived from at least one azo dye which is free from water-solubilizing groups and contains at least one polymerizable olefinically unsaturated group and has the formula:A--N.dbd.N--Ewherein A represents the residue of a carbocyclic or heterocyclic diazotisable amine containing at least one electron-withdrawing substituent and E represents the residue of a carbocyclic or heterocyclic coupling component with the proviso that when both A and E are carbocyclic, the residue of the diazotisable amine does not contain a nitro or chloro substituent except when another different electron-withdrawing substituent is also present, the or each polymerizable group being attached to a carbon atom forming part of residue A or E.

Abstract: Process to dye polyacrylonitrile in blue shades with cationic dye compounds: substituted benzothiazolium azo N-alkyl-N-hydroxyalkyl alkyl-aniline salts.

Abstract: Concentrated dye solutions of dyes of the formula (1) shown in claim are described.The dye solutions are distinguished by a good storage stability and are suitable, in particular, for dyeing paper.

Abstract: Dye mixtures useful for dyeing or printing synthetic fabrics contain at least one azo dye whose diazo component is 2-amino-3,5-dicyano-4-methylthiophene and whose coupling component comes from the 2-amino-4-thienylthiazole series and also at least one azo dye whose diazo component is 2-amino-3,5-dicyano-4-methylthiophene, 2-amino-3-alkoxycarbonyl-5-cyano-4-methylthiophene or 2-amino-5-alkoxycarbonyl-3-cyano-4-methylthiophene and whose coupling component comes from the 3-cyano-4-methyl-2,6-diaminopyridine series, and/or at least one azo dye whose diazo component is a 2,6-dicyano-4-alkylaniline and whose coupling component comes from the m-phenylenediamine series.

Abstract: The invention relates to a dye mixture containing a dye of the formula ##STR1## in which R.sub.1 is methyl or ethyl and at least one dye of the formulae (2) and (3) ##STR2## in which D is substituted or unsubstituted phenyl, thiophenyl or benzothiazolyl, R.sub.2 is C.sub.1 -C.sub.8 alkyl, R.sub.3 is substituted or unsubstituted C.sub.1 -C.sub.8 alkyl, and R.sub.4 is hydrogen or C.sub.1 -C.sub.4 alkyl, and ##STR3## in which R.sub.5 is C.sub.1 -C.sub.4 alkyl. The dye mixture is distinguished by generally good properties, in particular by good exhaustion.

Abstract: The invention relates to a dye mixture containing a dye of the formula ##STR1## in which R.sub.1 is methyl or ethyl and at least one dye of the formulae (2) to (4) ##STR2## in which R.sub.2 is halogen, benzoylamino which is unsubstituted or substituted in the phenyl ring by halogen, 1-azacycloheptane-N-sulfonyl or ##STR3## in which R.sub.5 is C.sub.1 -C.sub.8 alkyl or phenyl which is unsubstituted or substituted by C.sub.1 -C.sub.4 alkyl, and R.sub.6 is hydrogen, or R.sub.5 and R.sub.6 are C.sub.1 -C.sub.8 alkyl, R.sub.3 is hydrogen, halogen or C.sub.1 -C.sub.8 alkyl, and R.sub.4 is hydrogen or halogen, ##STR4## in which D is substituted or unsubstituted phenyl, thiophenyl or benzothiazolyl, R.sub.7 is C.sub.1 -C.sub.8 alkyl, R.sub.8 is substituted or unsubstituted C.sub.1 -C.sub.8 alkyl, and R.sub.9 is hydrogen or C.sub.1 -C.sub.4 alkyl, and ##STR5## in which R.sub.10 is C.sub.1 -C.sub.4 alkyl. The dye mixture is extinguished by generally good properties, in particular by good exhaustion.

Abstract: A liquid dyestuff, useful as a major component of a ballpoint ink is prepared. A dye base, having both a sulfonic acid group and an azo group bonded to the same aromatic ring system, is provided in the aqueous phase of a two-phase system in which the organic phase is about 30 percent or more benzyl alcohol. In this two-phase system, the dye base is complexed with a diaryl quanidine, and the resulting dye concentrates in the organic solvent phase.

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: The invention describes a process for the preparation of formulations of water-insoluble to sparingly soluble azo dyes by simultaneous diazotization and coupling in a single step reaction, filtering the dye dispersion and, if desired, drying the dyestuff, which process comprises carrying out said simultaneous diazotization and coupling by intimately mixing the aqueous solution or suspension of the reactants, in the presence of one or more surface-active agents, concentrating the dilute dye dispersion by membrane separating methods, and at the same time at least partially removing salt and/or acid from the dispersion and converting it into a storage stable liquid formulation or, by drying, into a solid dye formulation.

Abstract: A crystalline form of the dye represented by the following formula (1): ##STR1## characterized by an X-ray diffraction pattern having a strong peak at the angle of diffraction (2.theta.) of 23.2.degree. and relatively strong peaks respectively at the angles of diffraction (2.theta.) of 8.3.degree., 12.3.degree., 20.8.degree., 21.9.degree., 25.0.degree., 27.1.degree., 29.2.degree. and 30.8.degree. according to X-ray powder diffractometry through the use of a Cu-K.alpha. line and a process for preparing the same by heat-treating a heat-instable crystalline form of the dye represented by the formula (1) in water, water containing a water-soluble organic solvent, or water containing an anionic or nonionic surfactant at a temperature of 40.degree. C. or above.It withstands dyeing at high temperature, e.g. 130.degree. C. or higher, to provide dyed fibers having excellent fastness properties.

Abstract: A stable and low-foaming composition for finishing synthetic fibres which contains, based on (a)+(b)+(c)(a) 15 to 84% by weight of a sparingly water-soluble or water-insoluble dye, fluorescent whitening agent or UV absorber,(b) 15.5% to 75% by weight of one or more dispersing agents, and(c) 0.5 to 10% by weight of an alkylenediamide.

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: Method is set forth of dyeing a material comprising forming a solution having a basic salt of a water soluble dye of the formula: ##STR1## wherein n is 0 or 1;m is 0 or 1;m=1 when n=0;p=0 when m=1;p=1 when m=0;the subscripts 1 and 0 indicating, respectively, the presence and absence of the substituent subscripted;Y is CR.sub.2 COO, CR.sub.2 CR.sub.2 COO or CR.sub.2 CR.sub.2 CR.sub.2 COO;each R is independently hydrogen, methyl, ethyl, phenyl or phenyl substituted with methyl, ethyl, halo, cyano, ethynyl or nitro;G is CR, CR.sub.2 CR, CRCR.sub.2, CR.sub.2 CR.sub.2 CR, CR.sub.2 CRCR.sub.2 or CRCR.sub.2 CR.sub.2 ;E is OH, SH or NH.sub.

Abstract: A polarizing film which comprises a film base having thereon an anthraquinone dye of general formula (I): ##STR1## wherein R.sup.1 and R.sup.2 each represents a hydrogen atom, an alkyl group, an alkoxy group, an aralkyloxy group, an aryl group, a cyclohexyl group, a 4-alkylcyclohexyl group, a carboxylic acid ester group, a carboxylic acid amide group, a halogen atom, ##STR2## X represents an oxygen atom, a sulfur atom or an amino group.

Abstract: A chromium complex dye of the formula ##STR1## and salts thereof are used for dyeing polyamides or leather.

Abstract: Azo dyestuffs of the formula ##STR1## wherein R.sub.1 denotes hydrogen, C.sub.1 -C.sub.4 -alkoxy or C.sub.1 -C.sub.4 -alkoxyethoxy andX denotes acyl,are distinguished by good levelling properties and good allround fastness properties. They dye polyester fibres in a bright blue shade.

Abstract: A thermal transfer printing sheet comprising a substrate having a coating comprising at least one azo dye of the formula:A--N.dbd.N--E Iwherein:A is the residue of a diazotizable heteroaromatic amine, A--NH.sub.2, in which A is selected from imidazolyl, pyrazolyl, thiazolyl, benzothiazolyl, isothiazolyl, benzoisothiazolyl, pyridoisothiazolyl and thienyl; andE is the residue of an aromatic coupling component, E--X wherein X is a group displaceable by a diazotized aromatic amine and E is optionally substituted aminophenyl, tetrahydroquinolinyl, julolidyl or aminoquinolinyl,and a process for the transfer of dye from the transfer sheet to a receiver sheet by the selective application of heat to the transfer sheet while it is contact with the receiver sheet.

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: The azo dyestuff of the formula ##STR1## having the interplanar spacings D/.ANG. 3.13, 3.36, 4.85, 9.26 and 13.94 for the five strongest lines having the relative intensity use 98, 89, 82, 100 and 87 is distinguished, compared to known modifications by an increased dye bath stability.

Abstract: A water-insoluble disperse dye composition comprising a combination of a dye represented by the following formula (I), ##STR1## wherein X is hydrogen, halogen, lower alkyl or lower alkoxy, in an amount of 95 to 20% by weight, and a dye represented by the following formula (II), ##STR2## wherein Z, Y.sub.1 and Y.sub.2 are independently hydrogen or halogen, and the ring A is a benzene or naphthalene ring unsubstituted or substituted with a carboxylic acid ester group, in an amount of 5 to 80% by weight, which is useful for dyeing polyester fiber materials to obtain dyed products having both extremely high light fastness and excellent thermal resistance.

Abstract: The invention is directed to reactive azo dyestuffs, free from anionic groups and which contain a basic group and a halogenotriazinyl radical and are of the general formula ##STR1## in which D is the radical of an organic azo dyestuff which is free from anionic groups and is preferably free from basic groups,B is a direct bond or a bridge member to a ring C atom of D,R.sub.1 is H, alkyl, aralkyl or aryl andW is a halogenotriazinyl radical containing a basic group; the dyestuffs are useful for the dyeing and printing of fibre materials containing cellulose.

Abstract: Process for the continuous trichromatic dyeing of synthetic polyamide materials which comprises using at least one blue-dyeing fibre-reactive sulfo-containing anthraquinone dye together with at least one red-dyeing sulfo-containing azo dye and at least one yellow- or orange-dyeing sulfo-containing azo dye.The process according to the invention is suitable for the continuous dyeing of synthetic polyamide materials from aqueous liquors, producing level dyeings having good fastness properties, in particular good ozone fastness.

Abstract: Compounds of the general formula I ##STR1## where R is hydrogen or an aliphatic, alkenyl, cycloaliphatic, araliphatic, aromatic or heteroaromatic radical, R.sup.1 is hydrogen, amino, hydroxyl or C.sub.1 -C.sub.3 -alkyl, R.sup.2 is hydrogen, unsubstituted or substituted alkyl, allyl, aralkyl or aryl or alkylamino or arylamino, X is hydrogen, chlorine, bromine, nitro, methyl, phenoxy, tolyloxy, dimethylphenoxy, chlorophenoxy or C.sub.1 -C.sub.8 -alkoxy, Y is hydrogen, chlorine or bromine, and Z is hydrogen, acetyl, carbamyl or cyano, are useful for dyeing and/or printing textile material.

Abstract: A process is described for separating sodium sulfate from aqueous solutions of certain fiber-reactive dyestuffs, which contain less than 2% by weight of chloride, by cooling down said solution to a temperature between +5.degree. C. and -15.degree. C. In the course of the cooling, the sodium sulfate precipitates in the form of the decahydrate and can be separated off in conventional manner, for example by filtration. The results obtained in this way are aqueous liquid low-salt preparations of these dyestuffs which contain less than 4% by weight of sodium sulfate.

Abstract: Disclosed is a method for dyeing sueded wool- or fur-bearing skins tone-in-tone in a single bath and in one step. The dyeing is carried out with reactive dyestuffs bearing at least one reactive group selected from acryloylimino, halogenoacryloylimino and .beta.-halogenopropionylimino, in the presence of non-ionic or anionically modified polyalkoxylated surfactants.

Abstract: Process for mass-coloring nylon in dark brown, dark violet and black shades, which comprises using as dye either mixtures of the 1:2 chromium complex of a monoazo dye of the formula I ##STR1## and the 1:2 chromium complex of a monoazo dye of the formula II ##STR2## or a mixed 1:2 chromium complex of a monoazo dye each of the formula I and the formula II in which R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are as defined in claim 1.

Abstract: New disazo sulphophenyl pyrazolone-sulpho stilbene compounds are useful as orange-hued dyes for cellulosic having excellent color stability over a wide pH range and when in aqueous solution are useful as liquid paper black dyes.

Abstract: Water-insoluble azlactone dyestuffs of the formula ##STR1## wherein A represents phenyl, chlorophenyl, bromophenyl, lower alkyl-phenylene, lower alkoxy-phenylene or pyridyl, B represents phenyl, chlorophenyl, lower alkyl-phenylene, lower alkoxy-phenyl, di(lower alkyl) amino-phenylene, cyano-phenyl, ##STR2## acetylamino-phenylene, nitro-phenyl, methylenedioxyphenyl, naphthyl, furyl, thienyl, pyrollyl, N-lower alkyl-pyrollyl, pyridyl or indolyl, and n stands for the integer 0 or 1, said dyestuffs being suitable--alone or in mixture with one another or in mixture with other dyestuffs--for the dyeing or printing of synthetic fibrous materials, such as fibers of cellulose di, 21/2- or triacetate, polyamides or particularly of polyesters, such as polyethylene terephthalate.

Abstract: A process for dyeing and printing cellulose-containing textile material, wherein the dye used is a compound of the general formula I ##STR1## where K is the radical of a coupling component of the pyridone, pyrazole or indole series,one of the radicals X, Y and Z is a carboxylic acid ester group of a total of 2 to 19 carbon atoms, a carboxamide group of a total of 1 to 19 carbon atoms, an unsubstituted or substituted sulfonic acid phenyl ester group or a sulfonamide group of a total of 6 to 18 carbon atoms, andthe remaining substituents X, Y and Z are hydrogen, methyl, chlorine, bromine or nitro.