Patent GB-729119-A (GB)
Title: Process of printing or padding fibrous sheet material
IPC: D06P1/44
Filed: 1951-08-28
Abstract: Fibrous sheet material is printed or padded with a paste containing a vinyl polymer containing in its molecule no reactive hydrogen atoms and no quantitatively exchangeable halogen atoms and the polymer is reacted in situ with a cross-linking agent containing in its molecule at least two polymerizable double bonds.  The cross-linking agent may be contained in the printing paste.  Reaction is effected by heating the printed material to a temperature of 80 DEG  to 140 DEG  C. Suitable vinyl polymers are the polymers of vinyl acetate, methyl or ethyl methacrylate, butadiene or an interpolymer thereof; N-vinyl-2-pyrrolidone, N-vinyl pyridine, vinylmethylether or an interpolymer thereof; or a vinyl copolymer comprising at least one vinyl monomer of the group consisting of lower alkyl methacrylates, vinyl chloride and vinylidene chloride and at least one other vinyl monomer of the group butadiene, methylbutadiene, chlorobutadiene, dichloroethene, acrylonitrile, ethyleneglycol diacrylate and trimethylol propane di- or triacrylate.  Cross-linking agents specified are hexahydro-1,3,5 - triacrylyl - s - triazine, an acrylic acid amide of a polyamine, an acrylate of a polyalcohol, and a polyester from a polyfunctional unsaturated acid.  The amount of the cross-linking agent used is not more than 10 per cent of the weight of the printing paste.  In examples (1) rayon fabrics are printed with an emulsion containing a latex of a butadiene-methyl methacrylate copolymer, turpentine, alginate thickener, emulsifying agents, Helio Fast Blue BL and hexahydro-1,3,5-triacrylyl-s-triazine, and then dried and steamed; (2) rayon fabrics are printed with an emulsion containing a copolymer of acrylonitrile, 1,1-dichloroethene, butyl acrylate and acrylamide, turpentine, Helio Fast Blue BL, emulsifying agents and hexahydro-1,3,5-triacrylyl-s-triazine; (3) emulsions containing a copolymer of acrylonitrile and butyl acrylate to which are added (a) polyacrylamide, (b) polyacrylic acid or (c) polyvinyl alcohol, are used in the preparation of printing pastes as in (1), but the hexahydro-1,3,5-triacrylyl-s-triazine may be replaced by a polyester from ethylene glycol and maleic acid; and (4) rayon fabrics are printed with an emulsion containing a copolymer of acrylonitrile, vinylidene chloride and butyl acrylate, alginate thickener, turpentine, Helio Fast Blue BL and hexahydro-1,3,5-triacrylyl-s-triazine (or ethylene diacrylamide or 1,2-ethyleneglycol diacrylate).  Specification 727,650, [Group IV (a)], is referred to.ALSO:Fibrous sheet material is printed or padded with a paste containing a vinyl polymer containing in its molecule no reactive hydrogen atoms and no quantitatively exchangeable halogen atoms and the polymer is reacted in situ with a cross-linking agent containing in its molecule at least two polymerizable double bonds. The cross-linking agent may be contained in the printing paste. Reaction is effected by heating the printed material to a temperature of 80 DEG  to 140 DEG  C.  Suitable vinyl polymers are the polymers of vinyl acetate, methyl or ethyl methacrylate, butadiene or an interpolymer thereof; N-vinyl-2-pyrrolidone, N-vinyl pyridine, vinylmethylether or an interpolymer thereof; or a vinyl copolymer comprising at least one vinyl monomer of the group consisting of lower alkyl methacrylates, vinyl chloride and vinylidene chloride and at least one other vinyl monomer of the group butadiene, methylbutadiene, chlorobutadiene, dichloroethene, acrylonitrile, ethyleneglycol diacrylate and trimethylol propane di- or triacrylate. Cross-linking agents specified are hexahydro-1,3,5-triacrylyl-s-triazine, an acrylic acid amide of a polyamine, an acrylate of a polyalcohol, and a polyester from a polyfunctional unsaturated acid.  The amount of the cross-linking agent used is not more than 10 per cent of the weight of the printing paste.  In examples (1) rayon fabrics are printed with an emulsion containing a latex of a butadiene-methyl methacrylate copolymer, turpentine, alginate thickener, emulsifying agents, Helio Fast Blue BL and hexahydro-1,3,5-triacrylyl-s-triazine, and then dried and steamed; (2) rayon fabrics are printed with an emulsion containing a copolymer of acrylonitrile, 1,1-dichloroethene, butyl acrylate and acrylamide, turpentine, Helio Fast Blue BL, emulsifying agents and hexahydro-1,3,5-triacrylyl-s-triazine; (3) emulsions containing a copolymer of acrylonitrile and butyl acrylate to which are added (a) polyacrylamide, (b) polyacrylic acid or (c) polyvinyl alcohol, are used in the preparation of printing pastes as in (1), but the hexahydro-1,3,5-triacrylyl-s-triazine may be replaced by a polyester from ethylene glycol and maleic acid; and (4) rayon fabrics are printed with an emulsion containing a copolymer of acrylonitrile, vinylidene chloride and butyl acrylate, alginate thickener, turpentine, Helio Fast Blue BL and hexahydro-1,3,5-triacrylyl-s-triazine (or ethylene diacrylamide or 1,2-ethyleneglycol diacrylate).  Specification 727,650 is referred to.