Abstract: Dye donor element for use according to thermal dye sublimation transfer comprising a support having thereon a dye layer comprising at least one heterocyclic hydrazono dye, wherein said dye corresponds to the general formula:A=N-N=Hetwherein A is a carbocyclic or heterocyclic coupler group or a cyclic reactive methylene system, which may carry at least one substituent, and Het is a heterocyclic nucleus, which may carry at least one substituent.

Abstract: A process of dyeing hair by preparing and applying to the hair an aqueous reaction medium comprising dihydroxybenzothiazine and a periodsate, iodate, ferricyanide or persulfate oxidizing agent, the composition optionally containing a color modifier selected from the group consisting of direct dyes, primary intermediates, couplers, cysteine, dopa species and mixtures thereof, additionally containing a buffer to maintain the pH in the range from 2 to 11 during the oxidation reaction; and removing the aqueous reaction medium from the hair after the desired color is attained and compositions and kits for practicing such processes. The reaction medium may be formed by simultaneous addition of the benzothiazine and the oxidant to the hair or by addition of the benzothiazine followed addition of the oxidant.

Abstract: There is described a process for dyeing sheetlike fiber materials, in particular those made of or containing cellulose fibers, with anionic dyes, in particular those having fiber-reactive groups, which comprises applying an alkali-free and preferably low-electrolyte or completely electrolyte-free aqueous solution of the anionic dye by the inkjet printing spray technique to a fiber material which has been pretreated and modified with a compound that contains one or more primary, secondary or tertiary amino groups or quaternary ammonium groups, which amino/ammonium groups may be part of a heterocycle. There is generally no need for an aftertreatment by washing. The costly treatment of wastewaters resulting from the excess dyeing liquors otherwise obtained is eliminated. If fiber-reactive dyes are used, fixation by means of alkali is not necessary; it is generally effected by a short heat treatment.

Abstract: A process is described for improving the photochemical stability of dyeings on polyester fibre materials by means of UV absorbers of the formula ##STR1## in which R is alkyl, alkoxy, halogen or hydroxyl, R.sub.1 is alkyl, R.sub.2 is hydrogen, halogen, alkyl, alkylamino, hydroxyalkylamino, aralkylamino, alkoxyalkylamino, alkenyl, alkoxy, alkoxy which is substituted by hydroxyl, carboxyl or C.sub.2 -C.sub.5 alkoxycarbonyl, alkenyloxy, phenyl or phenyl which is substituted by halogen, alkyl, hydroxy-C.sub.1 -C.sub.4 alkyl, alkenyloxy, alkoxy, hydroxyl or carboxy-C.sub.1 -C.sub.4 alkoxy, m is 0 or 1 and n is 0, 1 or 2, and also novel compounds of the formula (1) in which m and n are both 0 and R.sub.2 is alkylamino, hydroxyalkylamino, aralkylamino or alkoxyalkylamino.

Abstract: Novel compounds of the general formula I ##STR1## where A.sup..crclbar. is an anion, R is hydrogen or unsubstituted or substituted alkyl or cycloalkyl, R.sup.1 and R.sup.2 independently of one another are each hydrogen or unsubstituted or substituted alkyl or cycloalkyl, or one of the radicals may furthermore be aryl, or R.sup.1 and R.sup.2, together with the nitrogen atom, form a saturated heterocyclic structure, the radicals R.sup.3 independently of one another are each hydrogen or C.sub.1 -C.sub.4 -alkyl, R.sup.4 and R.sup.5 independently of one another are each unsubstituted or substituted alkyl or cycloalkyl, or one of the radicals may furthermore be hydrogen, aryl or hetaryl, R.sup.4 and R.sup.5, together with the nitrogen atom, form a saturated heterocyclic structure, n is 1, 2 or 3, X is hydrogen, chlorine, bromine, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy or nitro and Y is hydrogen or chlorine, are particularly useful for dyeing paper stocks.

Abstract: There are described novel brilliant red methine compounds of the formula I ##STR1## wherein R.sub.1 is hydrogen, NO.sub.2, halogen, unsubstituted or substituted C.sub.1 -C.sub.4 -alkyl, or it is C.sub.1 -C.sub.4 -alkoxy,R.sub.2 is unsubstituted or substituted C.sub.1 -C.sub.4 -alkyl,R.sub.3 independently of one another are each C.sub.1 -C.sub.4 -alkyl,R.sub.4 is hydrogen, unsubstituted or substituted C.sub.1 -C.sub.4 -alkyl or unsubstituted or substituted aryl,R.sub.5 is unsubstituted or substituted C.sub.1 -C.sub.4 -alkyl, or it is C.sub.3 -C.sub.4 -alkenyl,R.sub.6 and R.sub.7 independently of one another are each hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy or halogen, andA is an anion,processes for producing them, and their use as dyes for dyeing and printing materials which can be dyed with cationic dyes, particularly polyacrylonitrile materials, the dyeings obtained being distinguished by a brilliant shade and good fastness to light.

Abstract: Process for dyeing textile materials of cellulose, by means of direct dyestuffs or reactive dyestuffs, by padding with aqueous dyeing liquors which contain cyclic carboxylic acid amides of the formula ##STR1## in which R represents a hydrogen atom, a C.sub.1 -C.sub.4 -alkyl radical or a C.sub.1 -C.sub.4 -hydroxyalkyl radical andA represents an alkylene radical required to complete a five-membered to seven-membered ring system and optionally substituted by halogen, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -hydroxyalkyl andn is 0 or 1,and, optionally, glycol compounds of the formula ##STR2## in which R' and R"' independently of one another represent hydrogen, a C.sub.1 -C.sub.5 -alkyl group or an acetyl group,R" represents hydrogen or methyl,n represents a number from 0 to 2 andX represents an oxygen atom or a sulphur atom, and fixing of the dyestuffs.

Abstract: Padding liquors or printing pastes which contain at least one compound which is free from ionic groups and possesses one or more glycidyl radicals are used for dyeing and printing cellulose fibres or textile materials containing cellulose fibres with water-soluble reactive dyestuffs in the absence of alkalis or alkaline compounds.

Abstract: Coarsely crystalline crude dioxazine pigments are subjected to dry milling while maintaining their crystallinity as far as possible until the desired degree of fineness is reached and then treated with a solvent.

Abstract: Bis-triazinylaminostilbene compounds of the formula ##STR1## in which R.sub.1 is alkyl, alkenyl, cyclohexyl or phenylalkyl, R.sub.2 is hydrogen, alkyl, cyclohexyl, benzyl, alkyl which is substituted by hydroxyl, cyano, sulpho or carbamoyl, alkoxyalkyl or hydroxyalkoxyalkyl or alkoxyalkoxyalkyl or mono- or di-alkylaminoalkyl, and R.sub.3 is hydrogen, alkyl, alkyl which is substituted by hydroxyl, cyano or sulpho, or alkoxyalkyl or hydroxyalkoxyalkyl or R.sub.2 and R.sub.3 together with the nitrogen atom to which they are bonded are a morpholine ring or a pyrrolidine, piperidine, hexamethyleneimine or piperazine ring which is unsubstituted or substituted by 1 or 2 alkyl groups, and M is hydrogen or an alkali metal, ammonium or amine ion, and, if R.sub.2 or R.sub.3 is hydroxyalkyl, R.sub.1 is methyl, cyclohexyl or alkenyl only, and their use as fluorescent brightening agents for organic material of high molecular weight are disclosed.