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:
Dyestuff preparations which contain (a) a water-soluble or water-dispersible dyestuff which is insoluble or sparingly soluble in phthalic acid C1-C8-dialkyl esters, (b) a phthalic acid C1-C8-dialkyl ester and (c) an anionic and/or non-ionic dispersing agent which has a minimum solubility of 1 g per litre of tetrachloroethylene at room temperature, and which are expecially suitable for the preparation of dyebaths of aliphatic halogenated hydrocarbons for dyeing fibre materials.