IN WHICH Y denotes a direct bond or an alkylene group which can be interrupted by hetero-atoms or sulphone groups, A denotes an alkylene group of the formula
B denotes a direct bond or a group of the formula
R1-R7 denotes hydrogen, alkyl or aryl, X1 and X2 denote oxygen or sulphur and Z1 and Z2 denote hydrogen or halogen and their use for the dyeing and printing of synthetic fibre materials. Dyeings obtained are distinguished by good build-up, high colour yield and excellent fastness properties, especially good fastness to light, sublimation and wet processing.
摘要:
THIS INVENTION CONCERNS ANTHRAQUINONE DYESTUFFS OF THE FORMULA
A(-NH-CH=C(-CN)-CO-N(-R1)-R2)N
WHEREIN A IS AN ANTHRAQUINONE RADICAL, N IS AN INTEGER FROM 1 TO 4 AND R1 AND R2 COMPLETE THE RESIDUE OF ALIPHATIC OF HETEROCYCLIC AMINES. THE DYESTUFFS ARE PREPARED BY REACTION OF THE APPROPRIATE CYANOACETIC ACID AMIDE WITH N-ANTHRAQUINONYL-N-FORMAMIDIUM SALTS. THESE DYESTUFFS ARE USEFUL FOR DYING OR PRINTING OF TEXTILES.
1-(R-NH-),4-Y1,5,8-DI(X-),DI((Z)(0-2)-)ANTHRAQUINONE (II)
AND 1,4-DI(R-NH-),DI((Z)(O-2)-)ANTHRAQUINONE (III)
WHEREIN Z IS A SUBSTITUENT, ONE X IS A MEMBER NHR AND THE OTHER IS HYDROGEN OR A SUBSTITUTED Z, Y IS AN OPTIONALLY SUBSTITUTED HYDROCARBON RESIDUE OR AN ACYL GROUP, Y1 IS HYDROGEN OR A SUBSTITUENT, AND R IS A MOIETY
CO-B-CO-NH-E
WHERE B IS A BOND, SATURATED OR UNSATURATED ALKYLENE WITH OR WITHOUT HETERO ATOMS AND SUBSTITUENTS, MONO OR POLYNUCLEAR ARYLENE WITH OR WITHOUT SUBSTITUENTS, CYCLOALKYLENE WITH OR WITHOUT SUBSTITUENTS OR HETEROARYLENE WITH OR WITHOUT SUBSTITUENTS AND E IS A RADICAL B OR AN ARALKYL GROUP; AS WELL AS THEIR PREPARATION AND USE AS PIGMENTS THE NOVEL DYESTUFFS ARE PIGMENT DYESTUFFS AND FREE OF SULFONIC ACID AND CARBOXYLIC ACID GROUPS.
摘要:
1,4,5-TRIAMINO-8-HYDROXY ANTHRAQUINONE DYESTUFFS FOR POLYESTERS AND POLYAMIDES CONTAINING SUBSTITUTED 2 AND/OR 3 POSITIONS WHEREIN ONE OF SAID POSITIONS CONTAINS A SUBSTITUENT SELECTED FROM THE GROUP CONSISTING OF SUBSTITUTED OR UNSUBSTITUTED ALKYL, ARYL, AND ARALKYL GROUPS LINKED TO THE ANTHROQUINONE NUCLEUS THROUGH A BRIDGE SELECTED FROM THE GROUP CONSISTING OF O, S, SO, AND SO2, ARE PREPARED BY REACTING A CYCLIC SULFAMIDE OR CYCLIC SULFIMIDE ESTER WITH SULPHUR IN OLEUM.
摘要:
The invention comprises dyes of formula wherein A is an anthraquinone radical which may be further substituted by a substituent which does not increase water-solubility and which preferably contains up to 4 condensed rings, R is H or CH3 and n is 1 or 2. The dyes are prepared by (a) condensing an aminoanthraquinone with an optionally methyl-substituted N - 3 - tetramethylene - sulphone - carbamic acid chloride or -isocyanate or (b) condensing an N-anthraquinonyl-carbamic acid chloride or -urethane with an optionally methyl -substituted 3 - amino - tetramethylene-sulphone. The dyes are used to colour synthetic fibre materials such as polyamides, polyurethane, polyacrylonitrile, polyester or cellulose ester fibres in yellow, orange, red and blue shades.
摘要:
Preparation of 1,5- and/or 1,8-dinitroanthraquinone, characterised in that 1,5-dinitroanthraquinone is directly precipitated from the anthraquinone nitration mixtures by a adjusting the molar fraction of nitric acid to a value of gamma HNO 0.90 to 0.68 at molar ratios of nitric acid: dinitroanthraquinone of 10:1 to 80:1; 1,8-dinitroanthraquinone is then precipitated from the filtrate by adjusting the molar fraction of nitric acid to a value of gamma HNO 0.80 to 0.50 at molar ratios of nitric acid:dinitroanthraquinone of 10:1 to 80:1.
摘要:
A 1-amino anthraquinone substantially free of diamino anthraquinone is prepared as follows: 1. Nitrating anthraquinone or a mixture which contains anthraquinone with concentrated nitric acid at a temperature of at least -20*C, the mole ratio of nitric acid to anthraquinone being at least 4:1; 2. Stopping the reaction when the anthraquinone conversion is at least 50% by cooling the reaction mixture to below 30*C and/or by adjusting the mole fraction of nitric acid to a value of 0.86 or less; 3. Precipitating 1-nitroanthraquinone by adjusting the mole ratio of nitric acid to a value of from 0.7 to 0.4 and/or by cooling the reaction mixture to a temperature of below 20*C; 4. Converting the precipitated 1-nitroanthraquinone into the corresponding 1-aminoanthraquinone; and 4. Subjecting the reaction product to vacuum distillation.