Abstract: Azo dyestuff free from groups imparting solubility in water are used in the process for the production of white or variously colored designs on a colored substrate on textile material wherein the dyestuff is dischargeable to white and is of the formulaD--N.dbd.N--K--NHSO.sub.2 Rwhereinwherein D is 6-nitrobenzthiazol-2-yl, 5-nitrobenzisothiazol-3-yl, a substituted phenyl, a substituted thiazole or a substituted thiophene moiety;K is a 1,4-phenylene, 1,4-naphthylene, 2,5-thiazolylene or 2,5-thienylene; andR is alkyl, substituted alkyl, alkenyl, substituted alkenyl, phenyl or substituted phenyl.

Abstract: Leathers can be advantageously dyed with water-soluble polyazo dyestuffs having, in the form of the free acid, the formula ##STR1## wherein A is a member of the benzene, naphthalene or heterocyclic series;B has the formula ##STR2## n is the number 1 or 2; m is a number from 1 to 4;X is hydroxyl or amino;Y is hydroxyl or amino but X differs from Y;Z is hydroxyl or amino unsubstituted or substituted by alkyl having 1 to 4 carbon atoms, alkanoyl having 1 to 4 carbon atoms or by a moiety of the formula ##STR3## R.sup.1 is hydrogen, alkyl having 1 to 4 carbon atoms, alkoxy having 1 to 4 carbon atoms or alkoxyalkoxy having 3 to 7 carbon atoms; andR.sup.2 and R.sup.3 independently of one another are each hydrogen or alkyl having 1 to 4 carbon atoms.

Abstract: Process for the aftertreatment of the azo pigment of the formula ##STR1## C.I. PIGMENT ORANGE 36 wherein the crude pigment obtained after coupling is heated to temperatures from 100.degree. to 150.degree. C. in dry or wet condition in a solvent which is water-immiscible or not indefinitely water-miscible and the pigment is isolated in known manner. The pigment aftertreated in this way shows substantially improved hiding power while the same pigment prepared in the usual way has poor hiding power and can not be used in stoving lacquers.

Abstract: Dyestuffs of the formula ##STR1## are used for coloring organic solvents, mineral oil products, waxes, plastics and surface coatings, wherein R is alkyl having 1 to 7 carbon atoms, R.sup.1 is alkyl having 1 to 8 carbon atoms or alkenyl having 3 or 4 carbon atoms, and R.sup.2 is hydrogen, alkyl having 1 to 8 carbon atoms or alkenyl having 3 or 4 carbon atoms.

Abstract: Azo dyestuffs free from groups imparting solubility in water are used in the process for the production of white or variously colored designs on a colored substrate on textile materials containing hydrophobic, synthetic fibers by impregnating the materials with dye liquors containing dyeing auxiliaries and padding auxiliaries as well as dyestuffs which are dischargeable to white, drying or incipiently drying the impregnated materials, printing the materials with an alkaline discharge reserve paste which contains a discharging agent, and subsequently subjecting the materials to a heat treatment at temperatures from 100.degree. to 230.degree. C., wherein said discharging agent is a base which produces a pH value of at least 8 in a 5% strength aqueous solution and the dyestuffs which are dischargeable to white are of the formulaD--N.dbd.N--K--NHSO.sub.

Abstract: In the process for production of discharge reserve prints on textile material comprised of water-repellent fibers or water repellent fibers mixed with cellulose fibers, wherein a disperse dyestuff which is dischargeable to white is applied in the form of a dye liquor or printing paste to the textile material after which said material is dried or incipiently dried, and a discharge reserve printing paste is printed on the material in the desired pattern, and the thus treated material is subsequently subjected to a heat treatment at temperatures of 100.degree. to 230.degree. C., the improvement comprises said disperse dyestuff which is dischargeable to white is a dyestuff of the formula ##STR1## as more fully defined herein and wherein said discharge reserve printing paste contains, as the discharging agent, a base which produces a pH value of at least 8 in a 5% strength aqueous solution.

Abstract: The aqueous dyestuff formulation of an tetrakisazo direct dyestuff which is stable to alkali and contains at least one aromatic hydroxyl group and/or enol group and at least one group conferring solubility in water, or a mixture of such azo direct dyestuffs, is characterized in that it has a pH value equal to or greater than 12 and is prepared by mixing an azo direct dyestuff which is stable to alkali, water and a tertiary alkali metal phosphate and/or alkali metal metasilicate and/or alkali metal hydroxide, and by choosing the proportions such that the dyestuff formulation contains 5 to 50% by weight of dyestuff and has a pH value equal to or greater than 12. The dyestuff formulation is used, after dilution with water, for dyeing and printing natural or synthetic materials containing hydroxyl groups.

Abstract: Hazy or frosty appearance of mixtures of polyester and cellulosic fibers when dyed with disperse dyes is suppressed by adding to the aqueous dye bath a small amount of low copolymer of acrylamide or the like with a water-soluble maleic or fumaric acid ester, and with or without an additional water-soluble vinyl compound, all as defined infra. The copolymer is normally a liquid miscible with water in all proportions at 10.degree. C. or below. Disperse dye is fixed to the polyester fibers by heating as in the Thermosol process. Dyes for the cellulosic fibers can also be included in the dye bath so that the cellulosic fibers are also dyed in the same treatment. Alternatively the cellulosic fibers can be separately dyed, preferably after the polyester fibers are dyed.

Abstract: Improved polyesters soluble or dispersible in water having an apparent average molecular weight of 800 to 5,000 and containing phosphonic ester moieties are useful as levelling auxiliaries for uniform dyeing and are produced by esterifying dibasic acids and dihydric alcohols, either or both of which contain phosphonic acid moieties, phosphonic acid ester moieties or both.

Abstract: Azo dyes are very simply made in high purity and very good yield by coupling a diazonium compound with a coupling compound in a mixture essentially of water with a simple alkanol having four to six carbons and soluble in water to the extent of not over about 15% by weight at 15.degree. C. This procedure is particularly effective with compounds that are ordinarily difficult to couple.

Abstract: An improved process for preparation of a condensed product of phenothiazine and p-nitrosophenol which contains more than 60% by weight of indophenol S-oxide of the formula ##STR1## by condensing phenothiazine with p-nitrosophenol in sulphuric acid wherein the improvement comprises the phenothiazine being in 60 to 90% strength sulphuric acid at the time of addition of the p-nitrosophenol.

Abstract: In the process for production of resist effects on textile materials of mixed fibers of polyester and cellulose comprising impregnating the materials with a dye liquor containing disperse dyestuffs and reactive dyestuffs which react with the resisting agents, drying or partially drying the padded materials and subsequently printing a resist paste on the material, and heat-treating the materials the improvement comprises the dischargeable disperse dyestuffs being of a class of dyestuffs of which an exemplary species is ##STR1## one of the tautomeric forms of a class of dyestuffs of which an exemplary species is ##STR2## or disperse dyestuffs which are free from groups conferring solubility in water and which contain at least two carboxylic acid ester moieties.

Abstract: A water-soluble monoazo dyestuff useful for dyeing or printing natural or synthetic material containing hydroxyls and nitrogen has the formula ##STR1## or a tautomeric form thereof, wherein R.sup.1 is methyl, ethyl or 6-methyl-7-sulphobenzthiazol-2-yl, R.sup.2 is methyl, methoxy or ethoxy, R.sup.3 is methyl or ethyl, R.sup.4 and R.sup.5 may be the same or different and are hydrogen, methyl or ethyl, M is hydrogen, alkali metal or ammonium and n is 0 or 1.

Abstract: Process for dyeing evenly synthetic fiber materials and mixtures thereof with natural fibers, with water-insoluble disperse dyestuffs according to the exhaust method, which comprises adding water-soluble or dispersible linear polyesters that have been obtained by polycondensation of dicarboxylic acids with diols, including sulfo-groups-containing chain links, with an average molecular weight of 800 to 5,000, combined with surface-active oxethylation products, at a blend ratio of 1:0.25 to 1:1.5, as dispersing system with levelling action to the aqueous dyeliquors, besides said dyestuffs and pH-controlling substances.

Abstract: White patterns on synthetic fiber textiles or patterns of a different color on a colored background are produced by dyeing the material with a dyestuff dischargeable to white, drying the material, printing the material with a discharge resist paste and heating the treated material to 100.degree.-230.degree. C. wherein the discharge agent is a base which produces a pH of at least 8 in a 5% strength aqueous solution.

Abstract: A crosslinked copolymer useful in textile printing is prepared by(a) polymerizing in the presence of a radical initiator in a water-miscible alkanol k mole percent acrylamide with 0 to 45 mole percent of a compound of the formula ##STR1## and 0.1 to 20 mole percent of a crosslinked agent wherein k is 99.9 to 50, R.sup.2 and R.sup.3 are hydrogen or methyl with the proviso that only one of R.sup.2 and R.sup.

Abstract: Use of cross-linked polymers for increasing the viscosity in cosmetic, pharmaceutical and technical compositions, wherein the polymer chains have the following composition:k - p molar % of groups of the formula ##STR1## p molar % of groups of the formula ##STR2## from 0 to 45 molar % of groups of the formula ##STR3## and from 0.1 to 20 molar % of a cross-linking agent, whereinR.sup.1 represents as a statistical mean value from 0 to 100 molar % of hydrogen and from 100 to 0 molar %, each calculated on the proportion of (k-p) molar %, of CH.sub.2 OH groups,R.sup.2 and R.sup.3 are hydrogen, or one of the radicals R.sup.2 and R.sup.

Abstract: Water-soluble disazo dyestuffs having the general formula B.sub.1 --N.dbd.N--Z--N.dbd.N--B.sub.2 wherein Z is ##STR1## wherein Y and M are the same or different and are methyl, ethyl, methoxy, ethoxy, and halogen, a and b are 0, 1 or 2, X is ##STR2## --0-- or --S--, R.sub.1 is hydrogen, alkyl having one to 4 carbon atoms, phenyl or benzyl, B.sub.1 is a CH-acid coupling component of the acetoacetic acid arylamide series of the formula ##STR3## wherein R.sub.2 is phenyl, substituted phenyl, naphthyl-1, benzimidazolon-5-yl, substituted benzimidazolon-5-yl, or substituted napthyl-1, naphthyl-2, or substituted naphthyl-2, and B.sub.2 denotes a second coupling component radical wherein B.sub.1 and B.sub.2 are identical or different with the proviso that said disazo compound contains at least one sulpho group or carboxyl group in the dyestuff molecule.

Abstract: Green sulfur dyestuff is produced by reacting phenothiazine in sulfuric acid with an oxidizing agent, condensing the oxidized phenothiazine with p-nitrosophenol and thionating with sulfur and sodium sulfide the condensate in a bake or reflux process.

Abstract: Process for preparing fiber-reactive water-soluble phthalocyanine azo dyes, using the following conversion stages ##STR1## followed by the diazonium coupling of the fiber-reactive group to the pyrazole ring. The novel intermediates are desirable products.