Patent GB-712128-A (GB)
Title: Improvements in the production of pigmented prints, impregnations and coatings on fibrous materials
IPC: D06P1/44
Filed: 1951-10-17
Abstract: The process of the parent Specification for the printing of textiles with a pigmented emulsion of a volatile organic solvent having a boiling point above 75 DEG C. dispersed in an aqueous outer phase containing a water-insoluble polymer and a water-soluble protective colloid having reactive hydrogen atoms, and cross-linking the reactive groups of the colloid with a polyfunctional cross-linking agent contained in the outer phase, is modified by using in the aqueous outer phase an aqueous solution or dispersion of a polymer with reactive groups.  This polymer may also serve as the water-soluble protective colloid. Suitable polymers are polyvinyl alcohol, polyvinyl acetals having free hydroxy groups, salts of polyacrylic acid or polymethacrylic acid, polyacrylic acid amide, poly-N-vinyl-2-pyrrolidone and interpolymers containing a high proportion of free -OH, -COOH, or -CONH2 groups.  In examples (1) a cotton fabric is printed with an emulsion containing heavy benzine dispersed in an aqueous phase containing copper phthalocyanine, the reaction product of octadecyl alcohol and ethylene oxide, ammonia, an interpolymer of ethyl acrylate and acrylic acid, hexamethylene diisocyanate-caprolactam adduct, ammonium caseinate, and thiodiglycol, dried and heated to 145 DEG C.; (2) a viscose rayon fabric is printed with a printing paste comprising titanium dioxide, with or without a coloured pigment, the reaction product of octadecyl alcohol and ethylene oxide, ammonia, an interpolymer of butyl acrylate, vinyl chloride and acrylic acid, the reaction product of long chain aliphatic disulphochlorides and ethyleneimine, an interpolymer of ethyl acrylate and ammonium acrylate, ammonia, ethylene glycol and lacquer benzine and then dried and heated to 130 DEG C.; the polyfunctional compound may alternatively be applied to the fibrous material before or after printing; and (3) fabric is printed with an emulsion containing pigment paste, an interpolymer of butyl acrylate, vinyl acetate and acrylic acid, ammonia, the reaction product of octadecyl alcohol and ethylene oxide, lacquer benzine, and the reaction product of long chain aliphatic disulphochlorides and ethyleneimine, dried and heated to 120-140 DEG C. Specification 709,954 is referred to.ALSO:The process of the parent Specification for the printing of textiles with a pigmented emulsion of a volatile organic solvent having a boiling point above 75 DEG C. dispersed in an aqueous outer phase containing a water-insoluble polymer and a water-soluble protective colloid having reactive hydrogen atoms [groups], and cross-linking the colloid with a polyfunctional cross-linking agent contained in the outer phase, is modified by using in the aqueous outerphase an aqueous solution or dispersion of a polymer with reactive groups.  This polymer may also serve as the water-soluble protective colloid.  Suitable polymers are polyvinyl alcohol, polyvinyl acetals having free hydroxy groups, salts of polyacrylic acid or polymethacrylic acid, polyacrylic acid amide, poly-N-vinyl-2-pyrrolidone and interpolymers containing a high proportion of free -OH, -COOH, or -CONH2 groups.  In examples (1) a cotton fabric is printed with an emulsion containing heavy benzine dispersed in an aqueous phase containing copper phthalocyanine, the reaction product of octadecyl alcohol and ethylene oxide, ammonia, an interpolymer of ethyl acrylate and acrylic acid, hexamethylene di-isocyanate-caprolactam adduct, ammonium caseinate, and thiodiglycol, dried and heated to 145 DEG C.; (2) a viscose rayon fabric is printed with a paste comprising titanium dioxide, with or without a coloured pigment, the reaction product of octadecyl alcohol and ethylene oxide, ammonia, an interpolymer of butyl acrylate, vinyl chloride and acrylic acid, the reaction product of long chain aliphatic disulphochlorides and ethyleneimine, an interpolymer of ethyl acrylate and ammonium acrylate, ammonia, ethylene glycol and lacquer benzine and the fabric dried and heated to 130 DEG C.; the polyfunctional compound may alternatively be applied to the fibrous material before or after printing; and (3) a spun rayon fabric is printed with an emulsion containing pigment paste, an interpolymer of butyl acrylate, vinyl acetate and acrylic acid, ammonia, the reaction product of octadecyl alcohol and ethylene oxide, lacquer benzine, and the reaction product of long chain aliphatic disulphochlorides and ethyleneimine, dried and heated to 120-140 DEG C.  Specification 709,954 is referred to.