Abstract:
Anthraquinone dyestuffs suitable for use in dyeing and printing synthetic fiber material, particularly polyesters, and process for their preparation which comprises reacting an anthraquinone which contains, in at least one .beta.-position, a reactive group which will come off, with a phenol, an alcohol, an aromatic or aliphatic mercaptan or amine which contains an aryl radical substituted by at least 1 acylamino methylene group or an anthraquinone which contains, in at least one .beta.-position, an aryl radical attached directly or through a bridge with a methylolamide or a derivative thereof or an equivalent amount of a mixture of formaldehyde or formaldehyde-yielding compound and an aliphatic or aromatic nitrile or the amide or imide derived therefrom.
Abstract:
An improved process for the continuous coloration of aromatic polyester/cellulose unions which comprises continuously applying to the said unions a reactive dyestuff and a disperse dyestuff containing at least two carboxylic acid ester groups, fixing the dyestuffs on the union, and thereafter subjecting the colored union to a treatment in an aqueous alkaline bath at a pH above 8.0 and at a temperature between 50.degree. and 85.degree. C, whereby the unions are padded or printed in a wide variety of shades possessing excellent fastness properties and there is little or no staining of any unprinted areas of the unions.
Abstract:
A light-transparent photoconductive material for use in electrophotography is the reaction product obtained by condensing A. AN ORGANIC PHOTOCONDUCTIVE COMPOUND CONTAINING AN AMINO AND/OR HYDROXYL GROUP AND B. A REACTIVE COLORED COMPOUND CONTAINING AN ACTIVE HALOGEN ATOM; OR BY CONDENSING A. AN ORGANIC PHOTOCONDUCTIVE COMPOUND CONTAINING AN ACTIVE HALOGEN ATOM AND B. A REACTIVE COLORED COMPOUND CONTAINING AN AMINO AND/OR HYDROXY GROUP.
Abstract:
A process for the non-aqueous dyeing or printing of nitrogencontaining fibre material, especially fibre material made from natural or synthetic polyamide, with certain water-soluble anionic anthraquinone dyestuffs from non-polar, aprotic organic solvents is disclosed. By said process even, strongly-coloured dyeings having good fastness properties are obtained; said process is moreover advantageous in that it can be carried out without the use of solubilising agents and without fire hazard in a uniform solvent which can be easily regenerated.
Abstract:
An anthraquinoid dyestuff which comprises at least one residue of an anthraquinoid disperse dyestuff and at least one residue of a disperse dyestuff of the styryl series.