GB816985A - Improvements in the production of pigmented prints, impregnations and coatings on fibrous materials - Google Patents

Abstract

Compositions useful for the production of pigmented prints, impregnations and coatings on fibrous materials comprise a pigment, a water-soluble hardenable initial condensation product of a thermosetting resin and an aqueous polymer dispersion derived from butadiene, an amide of acrylic or methacrylic acid and a nitrile or ester, e.g. the methyl, ethyl or butyl ester, of acrylic or methacrylic acid and, preferably, an acidic catalyst capable of hardening the initial condensation product, the polymer in the polymer dispersion being free from halogen substituents. Initial condensation products specified are the reaction products of formaldehyde with urea, thiourea, ethylene urea, acetylene diurea, melamine, phthaloguanamine, dicyandiamide, guanidine, ethylene dicarbamate and phenols, for example dimethylolurea and trimethylol melamine and ethers thereof. The polymer dispersion may consist of a copolymer in which all the selected monomers are copolymerized or may be made by mixing dispersions of homopolymers or copolymers derived from the selected monomers. Acidic catalysts specified are ammonium dihydrogen phosphate, ammonium thiocyanate and ammonium nitrate. Pigments specified are copper phthalocyanine and the products obtained by coupling 5-chloro-o-toluidine with 2 : 3 - hydroxynaphthoic - 5 - chloro - o - toluidide and p-chloro-o-nitroaniline with acetoacet-o-chloroanilide. Optical ingredients of the compositions are white spirit, glycerine, gum tragacanth, an alkylphenol-ethylene oxide condensate and a higher fatty alcohol-ethylene oxide condensate. In an Example: (4) acrylamide is polymerized in an aqueous dispersion of a butadiene/acrylonitrile copolymer in the presence of a sulphonated oil, tert.-butyl hydroperoxide and tetraethylene pentamine.ALSO:Pigmented prints, impregnations and coatings on fibrous materials, e.g. cotton, nylon and viscose fabrics, are produced by applying thereto a pigmented composition comprising a water-soluble hardenable initial condensation product of a thermosetting resin and an aqueous polymer dispersion derived from butadiene, an amide of acrylic or methacrylic acid and an ester, e.g. the methyl, ethyl or butyl ester, or the nitrile of acrylic or methacrylic acid, which polymer is free from halogen substituents, and thereafter heating the fibrous material, preferably in the presence of an acidic catalyst capable of hardenin the initial condensation product of the thermosetting resin, e.g. ammonium dihydrogen phosphate, ammonium nitrate or ammonium thiocyanate. Initial condensation products specified are the reaction products of formaldehyde with urea, thiourea, ethyelene urea, acetylene diurea, melamine, phthaloguanamine, dicyandiamide, guanidine, ethylene dicarbamate and phenols, for example dimethylol urea, trimethylol melamine and ethers thereof. The polymer dispersion may consist of a copolymer in which all the selected monomers are copolymerized or may be made by mixing dispersions of homopolymers or copolymers derived from the selected monomers. Pigments specified are copper phthalocyanine and the products obtained by coupling diazotized 5-chloro-o-toluidine with 2:3-hydroxynaphthoic-5-chloro-o-toluidine and diazotized p-chloro-o-nitroaniline with acetoacet-o-chloroanilide. Optional ingredients of the compositions are white spirit, glycerine, gum tragacanth, an alkyl phenolethylene oxide condensate and a higher fatty alcohol-ethylene oxide condensate.