Verwendung eines neuen Bistriazinylaminostilbenderivates als optisches Aufhellmittel mit Ausnahme der Behandlung von Textilfasern

摘要

The invention comprises the compound and its salts. The compound is prepared by reacting cyanuric chloride in any desired order of succession in the molecular ratio of 2:1:2:2 with 4,41-diaminostilbene-2:21-disulphonic acid, 1-aminobenzene-4-sulphonic acid and diethylamine. Preferably, cyanuric chloride is condensed in the molecular ratio of 2:1 with 4,41-diaminostilbene-2,21-sulphonic acid to give the compound which is then treated to exchange one chlorine atom in each dichlorotriazinyl residue for the residue of p-aminobenzenesulphonic acid to give the compound the two remaining chlorine atoms each being subsequently exchanged for a diethylamino group. An example describes the preparation of the sodium salt, other specified salts being the potassium, lithium, ammonium, amine, barium and calcium salts. The compound is an optical brightening agent (see Divisions B5, C4, C5, D1). Reference has been directed by the Comptroller to Specification 705,406.ALSO:The compound and its salts may be used as optical brightening agents in admixture with dyestuffs or pigments, as additives to dyebaths, printing, resist or reserve pastes, or i combination with detergents such as soaps, salts of sulphonate detergents such as sulphonated 2-(higher alkyl)-benzimidazoles and salts of monocarboxylic acid esters of 4-sulphophthalic acid with higher fatty alcohols, salts of fatty alcohol sulphonates, alkylarylsulphonic acids, condensation products of higher fatty acids with aliphatic hydroxysulphonic or aminosulphonic acids, and non-ionic detergents such as polyglycol ethers derived from ethylene oxide and C8-22 fatty alcohols, alkylphenols or fatty amines. Reference has been directed by the Comptroller to Specification 705,406.ALSO:The compound and its salts are used in admixture with chemical bleaches, as additives to bleaching baths, or for optically brightening fibrous materials. The fibrous materials may be in the form of fibres, filaments, yarns, woven or knitted fabrics, or felt. Specified materials are cotton, hemp, flax, linen, jute, ramie, rayon, viscoses, cellulose butyrate, acetylcellulose, polyesters, polyamides, feathers, hairs, pelts and hides and leather made therefrom, straw, wool, wood pulp, paper and cardboard. Examples describe the brightening of paper, bleached cotton fabric and bleached polyamide fabrics of filament or staple fibres. Reference has been directed by the Comptroller to Specification 705,406.