Abstract: The new printing inks, comprising at least one dyestuff of the formula (I) ##STR1## are suitable for printing the most diverse carrier materials, in particular by means of an ink jet recording system.

Abstract: Aqueous emulsions based on certain graft polymers are outstandingly suitable for the production of colored inks for so-called marker pens. They are distinguished, for example, by a high storage stability.

Abstract: A halftone gravure printing ink(A) about 2 to about 20% by weight of colorant,(B) about 10 to about 40% by weight of resin and(C) about 80 to about 50% by weight of solventwherein said colorant comprises azo dyestuff of the formula ##STR1## in which A.sub.1, A.sub.2 and A.sub.3 denote hydrogen, halogen, --CN, --NO.sub.2, C.sub.1 -C.sub.6 -alkyl, cycloalkyl, C.sub.1 -C.sub.18 -alkoxy, optionally substituted phenoxy, optionally substituted C.sub.1 -C.sub.18 -alkylsulphonyl, optionally substituted phenylsulphonyl, optionally substituted sulphamoyl, optionally substituted carbamoyl, optionally substituted phenylazo, C.sub.1 -C.sub.18 -alkoxycarbonyl, --CF.sub.3, --SCN, C.sub.1 -C.sub.12 -alkylmercapto, C.sub.1 -C.sub.6 -alkylcarbonyl, optionally substituted phenylcarbonyl or --OH,A.sub.4 and A.sub.5 denote hydrogen, halogen, optionally substituted C.sub.1 -C.sub.6 -alkyl, optionally substituted C.sub.1 -C.sub.6 -alkoxy, --NH--CO--CH.sub.2 CH.sub.2 OA.sub.8, --NH--CO--A.sub.8, --NH--SO.sub.2 --A.sub.

Abstract: Printing inks are described which utilize a unique class of coloring agents which are the reaction products of free NCO group bearing resins and dyestuffs bearing reactive hydrogens. A novel class of such adducts which contain monocarboxylic acid residues are also described. These printing inks, which may also contain traditional pigments, find particular utility in letterpress or offset printing.

Abstract: Halftone gravure printing inks containing pyridone azo dyestuffs wherein the dyestuffs are obtained by reacting a pyridone dyestuff of the formula ##STR1## with a dicarboxylic or polycarboxylic acid or a pyridone azo dyestuff of the formula ##STR2## with a dihydroxy or polyhydroxy compound.

Abstract: Condensation products which are obtained from formaldehyde, di-hydroxyaryl sulphones, phenols, if desired, and hydroxyarylcarboxylic acids and are prepared in a one-stage reaction at pH values between 2 and 5 are suitable as fixing agents for basic dyestuffs.

Abstract: A process for the production of aqueous suspensions containing from 35 to 60% by weight of microcapsules by interfacial polyaddition from polyisocyanates and H-active compounds, wherein(a) an isocyanaurate-modified aliphatic polyisocyanate is used as the polyisocyanate, and(b) the suspension is adjusted to a pH-value of .ltoreq.7 after the polyaddition reaction,which microcapsules optimally contain dye precursors and can be used for the production of completely or partly coated copying systems by the rotogravure or flexograph processes.

Abstract: The invention relates to a pressure-sensitive, carbonless copying system and to a process for the production of pressure-sensitive, carbonless copying system wherein a non-aqueous, substantially solvent free printing ink containing micro-capsules which contain dye-precursors, is applied by wet and dry offset and book printing techniques to all or part of at least one surface of a paper substrate; and to printing inks comprising(1) binders, (2) microcapsules containing dye precursors, (3) spacers having a grain size of from 1.5 to 10 times the diameter of the microcapsules, and optionally auxiliaries and additives.

Abstract: The invention relates to the preparation of pulverulent formulations of transfer printing dyestuffs.The process is characterized in that the aqueous dispersions of these dyestuffs are mixed with compounds of the formulaR--ZwhereinR denotes a hydrophobic radical with at least 5 C atoms andZ denotes the groups --COOH, --NH.sub.2, --O(C.sub.2 H.sub.4 O).sub.n H, --NX.sub.1 X.sub.2 or --NH(CH.sub.2).sub.m NX.sub.1 X.sub.2,in whichn is 0, 1 or 2,m is 2-6 andX.sub.1 /X.sub.2 is H or C.sub.1 -C.sub.4 -alkyl,with the proviso that R represents a non-cyclic aliphatic radical when Z represents COOH,and the aqueous mixtures are converted into dry pulverulent form in a manner which is in itself known.The preparation can easily be dispersed in organic media, for example in organic solvents such as those customary in the preparation of printing pastes, and are outstandingly suitable for the preparation of printing inks for printing temporary supports for heat transfer printing.

Abstract: Condensation products which are obtained by reaction of aromatic hydroxycarboxylic acids with formaldehyde in a first stage and by a subsequent condensation reaction of the products with phenol and/or phenol derivatives in the molar ratio 1:(0.8-21):(0.6-20) are suitable as fixing agents for basic dyestuffs in paper printing.

Abstract: Fabrics of preferrably polyester fibres can be printed in deep yellow colors with good fastness properties if dyestuffs of the formula ##STR1## wherein X denotes hydrogen, chlorine, methyl, nitro, CF.sub.3 or cyano,Y denotes methyl, methoxy, nitro or chlorine or cyano andZ denotes hydrogen, methyl, chlorine or cyano,R.sub.1 /R.sub.2 representing hydrogen, chlorine, methyl or methoxy, with the proviso that R.sub.1 and/or R.sub.2 denote chlorine, methyl or methoxy if X represents a nitro group,are used according to the transfer printing principle.

Abstract: The invention relates to a resin composition that is curable by ultra-violet light, which composition comprises(a) 10 to 99.7 percent by weight of a polyester that contains .alpha., .beta.-ethylenically unsaturated dicarboxylic acid radicals and .beta.,.gamma.-ethylenically unsaturated ether groupings, and(b) 0.3 to 10 percent by weight of a photoinitiator.

Abstract: A mixture which is hardenable by UV-light in an extremely short time comprisingA. 30 - 95 % by weight of a reaction product of a polyepoxide and acrylic or methacrylic acid;B. 5 - 70 % by weight of a tri- to hexa-acrylic or methacrylic acid ester of a tri- to hexahydric alcohol or their mixtures andC. 0.2 - 10 % by weight, based on the sum of (A) and (B), of a conventional photoinitiator.The mixture is preferred used as binder for printing inks.

Abstract: The invention relates to aqueous printing inks for the production of printed temporary supports, for transfer printing, by the film printing or screen printing process. The inks contain a sublimable disperse dyestuff, a binder, a filler and a thickener. The binder/filler weight ratio of the inks is 1 : 2 to 1 : 8, preferably 1 : 6 to 1 : 7.