Patent GB-891848-A (GB)
Title: Process and composition for the printing and dyeing of textiles
IPC: D06P1/44
Filed: 1960-02-10
Abstract: A printing paste or dyeing liquor contains polymeric film former, titanium dioxide and a polymethylene urea of the general formula <FORM:0891848/IV (a)/1> wherein R and R1 stand for hydrogen or methylol or methylol ether groups and n and m are whole numbers, n+m being at least 4. The polymethylene ureas are obtained from urea and formaldehyde or mono- or dimethylol ureas by strongly acid condensation, preferably at pH values of 1 to 2.  As film formers there are mentioned copolymerization products of, for example, acrylic acid esters, methacrylamide, styrene, vinyl chloride, vinylidene chloride, vinyl esters, butadiene and isoprene and also of methacrylamide-methylol methyl ether and butadiene, butyl acrylate, styrene and acrylonitrile.  Other suitable film formers are polyethylene dispersions, polyurethanes, latices containing polyvinyl acetals, vinyl polymerizates having incorporated copolymerizates of vinyl oxethyl urea, 1,2-vinyl oxypropyl-2-imidazolidone and copolymerizates of vinyl compounds and glycidyl esters, acrylic acid and methacrylic acid.  As cross-linking agents the compositions may contain latices with carboxylic groups, water soluble compounds of aldehydes with amines, aminotriazines or ureas, or reaction products of polymethylol ureas and hydroxyethylated polyfunctional alcohols. Printing pastes may also contain hydrophobing agents, plasticizers and thickeners, such as tragacanth, starch, cellulose ether, polyvinyl alcohol, polyacrylamide and the ammonium salt of polyacrylic acid.  The pastes may be applied as emulsions.  Carbon black and copper phthalocyanine are suitable as additional pigments. In examples, pastes are prepared of (1) titanium dioxide; a compound of the above formula in which R=H, R1=-CH2OH, n=8 to 12 and m is 1 to 2; glycol; an aqueous co-polymerization product of butadiene, butyl acrylate, styrene, acrylonitrile and methacrylamide; an aqueous solution of a trimethylol urea-hexanetriol-butane dihydroxyethyl-glycol polyether; aqueous methyl cellulose and ammonium chloride.  After printing the paste is fixed at 100 DEG -150 DEG C.; (2) titanium dioxide and a polymethylene urea (I) where R and R1 = H, n=7 to 13 and m=0 to 1, ethylene glycol, a butadiene/acrylonitrile/styrene/methacrylamidemethylol methyl ether copolymer latex, a trimethylol urea-hexanetriol-butane-dihydroxyethyl glycol polyether modified by condensation with hexamethylol melamine and hexanetriol, methyl cellulose and aqueous ammonium chloride. Other ingredients specified are dyes and pigments; compounds of the general formula I where R is H, R1 is H or CH2OH, n is 8-12 or 12 to 20, and m is 1-2, 0-3; copolymerization products of as dichlorethene, butyl acrylate and methacrylamide or of butadiene, butyl acrylate, styrene, acrylonitrile and methacrylamide(30:30:30:6:2). Specifications 620,791, 669,739, 729,122, 769,255, 769,271, 774,101, 784,946, 804,738, 872,525 and 872,526 are referred to.ALSO:A printing paste or dyeing liquor contains a polymeric film former, titanium dioxide and a polymethylene urea of the general formula <FORM:0891848/IV (c)/1> wherein R and R1 stand for hydrogen or methylol or methylol ether groups and n and m are whole numbers, n+m being at least 4. The polymethylene ureas are obtained from urea and formaldehyde or mono- or dimethylol ureas by strongly acid condensation, preferably at pH values of 1 to 2.  As film formers there are mentioned copolymerisation products of, for example, acrylic acid esters, methacrylamide, styrene, vinyl chloride, vinylidene chloride, vinyl esters, butadiene and isoprene and also of methacrylamide-methylol methyl ether and butadiene, butyl acrylate, styrene and acrylonitrile.  Other suitable film formers are polyethylene dispersions, polyurethanes, latices containing polyvinyl acetals, vinyl polymerizates having incorporated copolymerizates of vinyl oxethyl urea, 1,2-vinyl oxypropyl-2-imidazolidone and copolymerizates of vinyl compounds and glycidyl esters, acrylic acid and methacrylic acid.  As cross-linking agents the compositions may contain latices with carboxylic groups, water soluble compounds of aldehydes with amines, aminotriazines or ureas, or reaction products of polymethylol ureas and hydroxyethylated polyfunctional alcohols. Printing pastes may also contain hydrophobing agents, plasticizers and thickeners, such as tragacanth, starch, cellulose ether, polyvinyl alcohol, polyacrylamide and the ammonium salt of polyacrylic acid.  The pastes may be applied as emulsions.  Carbon black and copper phthalocyanine are suitable as additional pigments. In examples, pastes are prepared of (1) titanium dioxide; a compound of the above formula in which R=H, R1= -CH2OH, n=8 to 12 and m is 1 to 2; glycol; an aqueous co-polymerization product of butadiene, butyl acrylate, styrene, acrylonitrile and methacrylamide; an aqueous solution of a trimethylol urea-hexanetriol-butane dihydroxyethylglycol polyether; aqueous methyl cellulose and ammonium chloride.  After printing the paste is fixed at 100 DEG C.-150 DEG C.; (2) titanium dioxide and a polymethylene urea (I) where R and R1=H, n=7 to 13 and m=0-1, ethylene glycol, a butadiene / acrylonitrile / styrene / methacryl - amide-methylol methyl ether copolymer latex, a trimethylol urea-hexanetriol-butane-dihydroxyethyl glycol polyether modified by condensation with hexamethylol melamine and hexanetriol, methyl cellulose and aqueous ammonium chloride. Other ingredients specified are dyes and pigments; compounds of the general formula I where R is H, R1 is H or CH2OH, n is 8-12 or 12 to 20, and m is 1-2, 0-3; copolymerization products of as dichlorethene, butyl acrylate and methacrylamide or of butadiene, butyl acrylate, styrene, acrylonitrile and methacrylamide (30 : 30 : 30 : 6 : 2). Specifications 620,791, 669, 739, 729,122, 769,255, 769,271, 774,101, 784,946, 804,738, 872,525 and 872,526 are referred to.