摘要:
An organic solvent-based printing ink composition which comprises a cationic dyestuff of the indole class, an organic solvent, an organic acid which preferably is a resin acid, soluble in the organic solvent, and optionally an organic pigment. The cationic dyestuff is formed (in situ) from its carbinol precursor. The compositions show for example high color strength and excellent rheological properties and can be used in publication or packaging gravure flexographic, lithographic or letterpress printing processes.
摘要:
The present invention relates to novel cationic yellow dyes of formula (1) wherein R1 and R2 are each independently of the other a C1-C8alkyl radical or an unsubstituted or substituted benzyl radical, R3 is hydrogen, C1-C8alkyl, C1-C8alkoxy, cyanide or halide, preferably hydrogen and X is an anion, with the proviso that at least one of the substitutents R1 is a benzyl radical and R2 is a methyl radical, R2 is not hydrogen, also to compositions therof, especially comprising other dyes, to processes for the preparation therof and to the use therof in the dyeing of organic material, such as keratin, wool, leather, silk, cellulose or polyamides, especially keratin-containging fibres, cotton or nylon, and preferably human hair.
摘要:
Novel azamethine compounds of the formula (1) ##STR1## in which R is alkyl of from 1 to 4 carbon atoms optionally substituted, Alk is alkyl of from 1 to 4 carbon atoms, Y is the methine radical or a nitrogen atom, R.sub.1 is hydrogen or alkyl of from 1 to 4 carbon atoms optionally substituted, alkylene is an alkylene group of from 2 to 6 carbon atoms, Z is a group of the formula (2a) or 2(b) ##STR2## in which R.sub.2 is alkyl of from 1 to 4 carbon atoms optionally substituted, R.sub.3 is alkyl of from 1 to 4 carbon atoms optionally substituted, or is phenyl unsubstituted or substituted by chlorine, alkyl of from 1 to 4 carbon atoms, alkoxy of from 1 to 4 carbon atoms, nitro, carbalkoxy of from 2 to 5 carbon atoms and/or carbamoyl, R.sub.4 is hydrogen or alkyl of from 1 to 4 carbon atoms optionally substituted, or R.sub.2 and R.sub.3 together with the nitrogen atom form a heterocyclic ring containing optionally nitrogen, oxygen or sulfur as a further hetero atom, or R.sub.2 and R.sub.3 or R.sub.2, R.sub.3 and R.sub.4 together with the positive nitrogen form a heterocyclic ring containing optionally nitrogen, oxygen or sulfur as a further hetero atom, the benzene nucleus A is unsubstituted or substituted by halogen, nitro, cyano, sulfamoyl, alkyl of from 1 to 4 carbon atoms, alkoxy of from 1 to 4 carbon atoms and/or carbalkoxy of from 2 to 5 carbon atoms, the benzene nucleus B is unsubstituted or substituted by halogen, nitro, alkyl of from 1 to 4 carbon atoms, alkoxy of from 1 to 4 carbon atoms and/or carbalkoxy of from 2 to 5 carbon atoms, n is the integer 1 or 2, and X.sup.(-) is the equivalent of a colorless anion.These novel compounds can be prepared in usual manner analogously to known processes using the corresponding indoline and alkoxyaniline derivatives as starting compounds with optional subsequent alkylation.The novel azamethine compounds are well suitable as dyestuffs, soluble in water and in acids as well as in various organic solvents, for the dyeing of preferably acid-modified aromatic polyesters, acid-modified polyamides and acid-modified polyacrylonitrile materials, especially those in the form of fibres or in the mass by means of a spin-dyeing procedure.
摘要:
Dyestuffs of the formula ##STR1## wherein R.sub.1 denotes halogen, alkyl, cycloalkyl, aralkyl, nitro, cyano, acyl, acylamino, amino, aminocarbonyl, aminosulphonyl, alkylsulphonyl, arylsulphonyl, alkoxy, aryloxy, aralkoxy, carboxyl, alkoxycarbonyl, aryloxycarbonyl or aralkoxycarbonyl or arylazo,R.sub.2 denotes alkyl, alkenyl, cycloalkyl, aryl or aralkyl,R.sub.3 and R.sub.4 denote alkyl, cycloalkyl or aralkyl,R.sub.5, R.sub.6, R.sub.7 and R.sub.8 denote hydrogen, alkyl, cycloalkyl, aralkyl or aryl, andwhereinR.sub.6 and R.sub.7 can together form a fused cycloaliphatic ring,A denotes aryl or heteryl,n denotes 0, 1 or 2 andAn.sup.(-) denotes an anion,process for their preparation and their use for dyeing and printing especially polyacrylonitrile and acid modified polyamides and polyesters.
摘要:
Cationic dyestuffs of the formula ##STR1## WHEREIN R represents an alkyl, alkenyl, cycloalkyl, aralkyl, aryl or heteryl radical or an alkylene radical bonded to A or to a ring fusted with A,R.sub.1 represents hydrogen, an alkyl, aralkyl, aryl or heteryl or nitrile,R.sub.2 represents hydrogen, alkyl, aralkyl or aryl,R.sub.3 represents alkyl,R.sub.4 represents hydrogen, alkyl, aralkyl, aryl, heteryl or alkylene or arylene bonded to R.sub.5,R.sub.5 represents a five- or six-membered aromatic ring,A represents the remaining members of a heterocyclic 5-membered or 6-membered ring andAn.sup.- represents an anion,A process for their preparation and their use for dyeing, printing and bulk dyeing of natural and synthetic materials.
摘要:
BASIC HYDRAZONE DYESTUFFS OF THE FORMULA 1,3-DI(R4-),2-(R-N(-R6)-N=C(-R5)-),5-R3,6-R2,7-R1BENZIMIDAZOLIUM . X(-) WHEREIN R IS AN AROMATIC-CARBOCYLIC RADICAL, R1 IS HYDROGEN OR ALKYL, R2 IS HYDROGEN, ALKYL, ALKOXY, OR AN AMINO WHICH MAY NE SUBSTITUTED BY ALKYL, SULPHONYL, OR CARBAMOYL, R3 IS HYDROGEN, ALKYL OR ALKOXY, R4 IS ALKYL R5 IS NITRILE, OR CARBONAMIDO, R6 IS HYDROGEN, ALKYL, ARALKYL, OR CYCLOALKYL, X- IS AN ANION, AND WHEREIN THE ALIPHATIC, CYCLOALIPHATIC, OR AROMATIC RADICALS R, R1, R2, R3, R4, R5, OR R6 MAY BE FURTHER SUBSTITUTED BY NON-IONIC SUBSTITUENTS HAVING A HAMMETT CONSTANT A PARA LESS THAN 0.7. THESE DYESTUFFS ARE USEFUL IN DYEING OR PRINTING LEATHER, COTTON, CELLULOSE ACETATE, AND LIGNIN-CONTAINING FIBERS.
WHEREIN R1 AND R4 REPRESENT HYDROGEN, HALOGEN, LOWER ALKYL, CYCLOALKYL, LOWER ALKOXY, NITRO, CARBALKOXY, NITRILE, ACYL OR ARALKYL, AND AT LEAST ONE OF THE SUBSTITUENTS R1 AND R4 REPRESENTS ARALKYL, R2 REPRESENTS LOWER ALKYL, CYCLOALKYL, ARALKYL, OR ARYL, R3 REPRESENTS ALKYL AND A- REPRESENTS AN ANION, AND WHEREIN THE ALKYL RADICALS AND THE AROMATIC CARBOCYCLIC RINGS ARE NOT FURTHER SUBSTITUTED OR CONTAIN FURTHER NON-IONIC SUBSTITUENTS, PROCESSES FOR THEIR MANUFACTURE AND THEIR USE FOR DYEING AND PRINTING OF POLYMERISED OR COPOLYMERISED ACRYLNITRILE, ACID-MODIFIED POLYESTER FIBRES AND POLAMIDE FIBERS.
摘要:
Process for the production of basic dyestuffs of the formula
BY QUATERNIZING DYE BASES OF THE FORMULA IN THE PRESENCE OF ALKALINE AGENTS WHEREIN THE IMPROVEMENT COMPRISES ADDING AS ALKALINE AGENTS TERTIARY AMINES WHICH ARE SPACE OCCUPYING SUBSTITUTED ON THE NITROGEN ATOM. In the formulas given R represents the residual constituent of a 5- or 6-membered heterocyclic ring; R1 and R2 are alkyl, cycloalkyl or aralkyl and R1 can additionally be aryl; A is an aromatic or heterocyclic radical and X is an anion. The compounds are used as basic dyestuffs.
摘要:
SUBSTANTIALLY PURE BASIC DYES DERIVED FROM 4-METHYLENE1,3-DISUBSITUTED-3,4-DIHYDROPYRIMIDONES WHICH ARE EMINENTLY SUITABLE FOR DYEING AND PRINTING TEXTILE MATERIALS MADE OF ACRYLONITRILE POLYMERS.