Patent GB-1079718-A (GB)
Title: Print pastes
Inventor: WILHELM HANS
IPC: D06M15/29
Filed: 1965-11-17
Abstract: Print pastes for textiles and other substrates comprise an oil-in-water emulsion containing a pigment or vat dye and, as a binder, a water-soluble copolymer of:-(1) to 70 parts by weight of a neutral ester of an a , b -ethylenically unsaturated mono-or di-carboxylic acid and an aliphatic or cycloaliphatic alcohol having at least 6 carbon atoms; (2) 1 to 40 parts by weight of an ethylenically unsaturated polymerizable nitrogenous compound containing at least one N-methylol ether group; (3) 4 to 15 parts by weight of a polymerizable a , b -ethylenically unsaturated mono- or di-carboxylic acid; (4) 0 to 20 parts by weight of an ethylenically unsaturated polymerizable hydroxy compound; and (5) 0 to 70 parts by weight of another ethylenically unsaturated monomer; the total amount or major proportion of the free carboxylic groups in the copolymer having been neutralized by ammonia or a nitrogenous organic base (e.g. methylamine, triethylamine, dimethy-ethanol-amine, triethanolamine, piperidine or morpholine). Suitble monomer components of the copolymer include (1) esters of acrylic, methacrylic, crotonic, maleic or fumaric acid with hexanol, heptanol, octanol, isooctanol, dodecanol, a -ethylhexanol, cyclohexanol or hexanediol; (2) N-methylol ethers of unsaturated amides and imides and unsaturated compounds containing a ureido, aminotriazine, dicyanodiamide, carbamic acid, thiocarbamic acid; glyoxal-monoureine or glyoxal diureine group; (3) crotonic, citraconic, itaconic, mesaconic, maleic, fumaric and, preferably, acrylic or methacrylic acid; (4) monoesters of polyhydric alcohols and ethylenically unsaturated carboxylic acids, monovinyl ethers of polyhydric alcohols, allyl alcohol and hydroxy-containing bicycloheptene derivatives; (5) styrene, esters of acrylic or methacrylic acid with alcohols having up to 5 carbon atoms, vinyl esters (including versatic esters), butadiene, isoprene, acrylonitrile, methacrylonitrile, acrylamide and methacrylamide and their N-alkyl derivatives, vinyl chloride, vinylidene chloride, vinyl ethyl ether, vinyl ethyl ketone, N-vinylimidazole, N-vinyl pyrrolidone and N-vinyl caprolactam. White spirit or mineral spirit gasoline fractions may be used as the oil phase of the emulsion.  Pigments exemplified are red iron oxide, aluminium poweder and copper phthalocyanine. The print pastes may optionally include cross-linking or curing agents such as aminoplasts and ammonium thiocyanate.  In an example the binder comprises a copolymer of a -ethylhexyl acrylate, N-(n-butoxymethyl)-acrylamide, acrylic acid, 1, 4-butanediol monoacrylate and styrene, neutralized with dimethylethanolamine.ALSO:Print pastes for textiles, e.g. cotton cloth, and other substrates comprise an oil-in-water emulsion containing a pigment or vat dye and, as a binder, a water-soluble copolymer of:-  (1) 10 to 70 parts by weight of a neutral ester of an a ,b -ethylenically unsaturated mono- or dicarboxylic acid and an aliphatic or cycloaliphatic alcohol having at least 6 carbon atoms; (2) 1 to 40 parts by weight of an ethylenically unsaturated polymerisable nitrogenous compound containing at least one N-methylol ether group; (3) 4 to 15 parts by weight of a polymerisable a ,b -ethylenically unsaturated mono- or di-carboxylic acid; (4) 0 to 20 parts by weight of an ethylenically unsaturated polymerisable hydroxy compound; and (5) 0 to 70 parts by weight of another ethylenically unsaturated monomer; the total amount or major proportion of the free carboxylic groups in the copolymer having been neutralised by ammonia or a nitrogenous organic base (e.g. methylamine, triethylamine, dimethyl ethanolamine, triethanolamine, piperidine or morpholine). White spirit or mineral spirit gasoline fractions may be used as the oil phase of the emulsion.  Pigments exemplified are red iron oxide, aluminium powder and copper phthalocyanine.  The print pastes may optionally include cross-linking or curing agents such as aminoplasts and ammonium thiocyanate.  In an Example the binder comprises a copolymer of a -ethylhexyl acrylate, N-(n-butoxymethyl)-acrylamide, acrylic acid, 1,4-butanediol monoacrylate and styrene, neutralised with dimethylethanolamine.