Patent GB-877369-A (GB)
Title: Printing pastes and a process for printing of fibrous materials
IPC: D06P1/44
Filed: 1959-12-24
Abstract: A coloured emulsion for printing fibrous material comprises a water-in-oil type emulsion, the oil phase of which comprises a volatile mineral oil containing a pigment dispersed therein and the aqueous phase of which comprises at least one water-soluble binding agent dissolved therein and at least one water-insoluble binding agent dispersed therein.  Water-soluble binding agents specified are water-soluble salts of basic polyureas, e.g. those described in Specification 706,717, water-soluble salts of the reaction products of polyamines with epihalohydrins or chloroacetic acid, condensates of formaldehyde with urea, dicyandiamide, and melamine, in which the methylol groups are etherified, polymers of the methylol derivatives of acrylamide or methacrylamide, copolymers of acrylic or methacrylic acid with styrene, acrylic esters, acrylonitrile or vinyl ethers.  As water-insoluble binding agents there are specified polymers and copolymers of acrylic and methacrylic acids and esters thereof, styrene, vinyl ethers, vinyl and vinylidene chlorides and butadiene, e.g. five component copolymers comprising butyl acrylate, styrene, butadiene, acrylonitrile and either methacrylic acid or methyl methylol methacrylamide, three component copolymers comprising butyl acrylate, methyl methylol methacrylamide and either styrene or acrylonitrile, a vinylidene chloride-butyl chloroacrylate copolymer and a four-component copolymer comprising butadiene, styrene, butylacrylate and methylol methacrylamide.  As pigments there are specified carbon black, phthalocyanines and azo dyestuffs.  The mineral oil used is of the aliphatic type.  Also present in the compositions may be dispersing agents.  The compositions are applied to fibrous substrates and insolubilized by heat-treatment, during the course of which reactive groups in the water-insoluble binding agent may react with the water-soluble binding agent.  Specifications p 561,642, 647,251, 729,122, 754,350, 784,946, 804,738 and 849,921 also are referred to.ALSO:Textile materials, e.g. those made from cotton, regenerated cellulose, cellulose acetate, wool, and polyamide, polyurethane, polyester and polyacrylonitrile fibres, are printed with a coloured emulsion which comprises a water-in-oil type emulsion, the oil phase of which comprises a volatile mineral oil containing a pigment dispersed therein and the aqueous phase of which comprises at least one water-soluble binding agent dissolved therein and at least one water-insoluble binding agent dispersed therein. Water-soluble binding agents specified are salts of basic polyureas, e.g. those described in Specification 706,717, water-soluble salts of the reaction products of polyamines with epihalohydrins or chloroacetic acid, condensates of formaldehyde with urea, dicyandiamide and melamine in which the methylol groups are etherified, polymers of methylol derivatives of acrylamide or methacrylamide, copolymers of acrylic or methacrylic acid with styrene, acrylic esters, acrylonitrile or vinyl ethers.  As water-insoluble binding agents there are specified polymers and copolymers of acrylic and methacrylic acids and esters thereof, styrene, vinyl ethers, vinyl and vinylidene chlorides and butadiene. As pigments there are specified carbon black, phthalocyanines and azo dyestuffs.  Also present in the compositions may be dispersing agents.  After application the emulsion is dried and may be insolubilized by heat or treatment in an alkaline bath. Specifications 561,642, 647,251, 729,122, 754,350, 784,946, 804,738 and 849,921 also are referred to.