Patent GB-789534-A (GB)
Title: Improved oil-in-water emulsion textile printing extender pastes
IPC: D06P1/44
Filed: 1954-04-30
Abstract: An oil-in-water type emulsion, useful as an extender- or carrier-emulsion for pigments and dyestuffs in the printing of textiles, comprises a mixture of two components, component I being an oil-in-water emulsion containing water, 40-66 per cent by weight of a water-immiscible hydrocarbon solvent and 0.3-0.8 per cent by weight of a water-soluble cellulose ether which in 2 per cent by weight aqueous solution at 20 DEG  C. has a viscosity of at least 1200 c.p.s., and component II being an oil-in-water emulsion of a water-immiscible organic solvent solution of a water-insoluble amino-aldehyde resin and/or an elastomer latex. Specified cellulose derivatives, which may be employed in admixture, are methyl cellulose and soluble salts of carboxymethyl cellulose.  Specified hydrocarbon solvents are various aliphatic and aromatic hydrocarbons, which may contain in admixture therewith water-immiscible esters, ketones, ethers and alcohols.  Specified aminoaldehyde resins are melamine-aldehyde and urea-aldehyde resins, including etherified derivatives thereof, and to this resinous component II may also be added a nitrocellulose lacquer aqueous emulsion.  Specified elastomer latices are those of neoprene, isobutylene, butadiene-acrylonitrile copolymers, polyvinyl chloride, polyvinyl chloride-polyvinyl acetate copolymers and mixtures of polyvinyl chloride with butadiene-acrylonitrile copolymers.  The emulsion may also contain surface-active agents, several of which are specified, and it may be employed for the printing of pigments as well as direct, acid, vat, Rapidogen and Indigosol dyestuffs. The emulsion may also be used for discharge printing, in which case it contains a formaldehyde-sulphoxylate, and also for printing on naphtholated grounds, in which case it preferably contains a soluble salt of a weak base and a strong acid, such as ammonium formate, sulphate, chloride, citrate, gluconate or thiocyanate, or mono- or tri-ethanolamine salts or methylamine or dimethylamine salts. Specifications 774,078 and 774,080 are referred to.ALSO:An oil-in-water type emulsion, useful as an extender- or carrier-emulsion for pigments and dyestuffs in the printing of textiles, comprises a mixture of two components, component I being an oil-in-water emulsion containing water, 40-66 per cent by weight of a water-immiscible hydrocarbon solvent and 0.3-0.8 per cent by weight of a water-soluble cellulose ether which in 2 per cent by weight aqueous solution at 20 DEG  C. has a viscosity of at least 1200 cps., and component II being an oil-in-water emulsion of a water-immiscible organic solvent solution of a water-insoluble amino-aldehyde resin and/or an elastomer latex. Specified cellulose derivatives, which may be employed in admixture, are methyl cellulose and soluble salts of carboxymethyl cellulose.  Specified hydrocarbon solvents are various aliphatic and aromatic hydrocarbons, which may contain in admixture therewith water-immiscible esters, ketones, ethers and alcohols. Specified amino-aldehyde resins are melamine-aldehyde and ureaaldehyde resins, including etherified derivatives thereof, and to this resinous component II may also be added a nitrocellulose lacquer aqueous emulsion.  Specified elastomer latices are those of neoprene, isobutylene, butadiene-acrylonitrile copolymers, polyvinyl chloride, polyvinyl chloride-polyvinyl acetate copolymers and mixtures of polyvinyl chloride with butadieneacrylonitrile copolymers.  The emulsion may also contain surface-active agents, several of which are specified, and it may be employed for the printing of pigments as well as direct, acid, vat, Rapidogen and Indigosol dyestuffs. The emulsion may also be used for discharge printing, in which case it contains a formaldehydesulphoxylate, and also for printing on naphthalated grounds, in which case it preferably contains a soluble salt of a weak base and a strong acid, such as ammonium formate, sulphate, chloride, citrate, gluconate or thiocyanate, or mono- or tri-ethanolamine salts or methylamine or dimethylamine salts. Specifications 774,078 and 774,080 are referred to.