Patent GB-877865-A (GB)
Title: Water-in-oil emulsion textile printing composition
IPC: D06P1/44
Filed: 1959-08-04
Abstract: A pigmented water-in-oil emulsion textile printing paste consists of an aqueous phase emulsified with a water-immiscible organic phase, the aqueous phase containing a binder system comprising a substantially linear high polymeric material containing reactive hydrogens and the water-insoluble organic phase containing a colour concentrate comprising a waterimmiscible volatile organic solvent, a pigment, an alkyl resin or ethyl cellulose; and a trifunctional monomeric cross-linking agent for the polymeric material, which is a trialkylene-1, 2-phosphoramide of the formula:  <FORM:0877865/IV (a)/1> where R is a methyl or ethyl group and R1 is hydrogen or a methyl or ethyl group.  The substantially linear high polymeric material may contain carboxylic acid hydrogens or amide hydrogens. Preferred compounds of the former type include acrylic polymers and copolymers including polyacrylic acid and polymethacrylic acid, copolymers of the monomers of these acids, especially copolymers with acrylic or methacrylic acid esters, acrylonitrile or methacrylonitrile.  Copolymers from three or four different monomers may contain, in addition to one or more acrylic-type monomers, one or more nonacylic monomers, e.g. styrene, butadiene, or vinyl butyl ether.  Preferred polymeric materials containing amide hydrogens are polyacrylamide and polymethacrylamide and copolymers of acrylamide and methacrylamide.  Such copolymers preferably contain, as co-monomers, acrylic-type monomers such as esters of acrylic acid and methacrylic acid, acrylonitrile and methacrylonitrile, and may also include one or more non-acrylic monomers.  The preferred cross-linking agent is tripropylene-1, 2-phosphoramide.  The paste may also contain low crock agents, water thickeners, emulsion stabilizers (e.g. diammonium phosphate) stabilizers for the cross-linking agent, e.g. N-ethyl and other N-alkyl merpholines), and discharge agents, e.g. sodium formaldehyde sulphoxylate.  Specified pigments include the red product obtained by coupling the 2, 5-dimethoxy-5-chloroanilide of b -oxynaphthoic acid with 2-methoxy-5-sulphondiethyl aniline, phthalocyanine blue, benzidine yellow, phthalocyanine green, Indomaroon, titanium dioxide and carbon black.  Other specified constituents of the emulsion include octyl alcohol, turpentine, pine oil, petroleum hydrocarbons, coal-tar naphtha, ammonium hydroxide, rubber latex and dimethyl trimethylol melamine.  Specifications 522,941, 523,090, 524,803, 561,641, 644,390, 647,251, 669,739, U.S.A.  Specifications 2,267,620, 2,504,136, 2,533,270, 2,600,890, 2,606,902, 2,848,431 and German Specification 863,055 are referred to.ALSO:A pigmented water-in-oil emulsion textile printing paste consists of an aqueous phase emulsified with a water-immiscible organic phase, the aqueous phase containing a binder system comprising a substantially linear high polymeric material containing reactive hydrogens and the water-insoluble organic phase containing a colour concentrate comprising a water-immiscible volatile organic solvent, a pigment, an alkyd resin or ethyl cellulose; and a trifunctional monomeric cross-linking agent for the polymeric material, which is a trialkylene-1, 2-, phosphoramide of the formula:- <FORM:0877865/IV(c)/1> where R is a methyl or ethyl group and R1 is hydrogen or a methyl or ethyl group.  The substantially linear high polymeric material may contain carboxylic acid hydrogens or amide hydrogens. Preferred compounds of the former type include acrylic polymers and copolymers including polyacrylic acid and polymethacrylic acid, copolymers of the monomers of these acids, especially copolymers with acrylic or methacrylic acid esters, acrylonitrile or methacrylonitrile.  Copolymers from three or more different monomers may contain, in addition to one or more acrylic-type monomers, one or more non-acrylic monomers, e.g. styrene, butadiene, or vinyl butyl ether.  Preferred polymeric materials containing amide hydrogens are polyacrylamide and polymethacrylamide and copolymers of acrylamide and methacrylamide. Such copolymers preferably contain, as co-monomers, acrylic-type monomers such as esters of acrylic acid and methacrylic acid, acrylonitrile and methacrylonitrile, and may also include one or more nonacrylic monomers.  The preferred cross-linking agent is tripropylene-1, 2-phosphoramide.  The paste may also contain low crock agents, water thickeners, emulsion stabilizers (e.g. diammonium phosphate) stabilizers for the crosslinking agent (e.g. N-ethyl and other N-alkyl morpholines), and discharge agents e.g. sodium formaldehyde sulphoxylate.  Not more than about 15% by weight of film-forming material should be present in the printing paste.  In a preferred composition, the alkyd resin has a viscosity of at least 30 poises as determined on a 50% xylene solution of the resin at 25 DEG C. and is made from (A) phthalic anhydride, (B) fatty oil acid, (C) acid catalysed phenoxyethanol-formaldehyde condensate having a melting-point of the order of 75 DEG C. and (D) a polymeric polyhydric alcohol having alternating aliphatic chains and aromatic nuclei united through ether oxygen and having 5-20 alcoholic hydroxyl groups per molecule, the proportions of the reactants used being within the limits: (1) 1-1,5 equivalents of (B) for each equivalent of (A), (2) the amount by weight of (D) is 0,25 to 2 times the amount of (C), and (3) the total amount by weight of (C) plus (D) is 1-1,5 times the total amount of (A) plus (B).  Specified pigments include the red product obtained by coupling the 2, 5-dimethoxy-5-chloranilide of b -oxynaphthoic acid with 2-methoxy-5-sulphondiethylaniline, phthalocyanine blue, benzidine yellow, phthalocyanine green, Indomaroon, titanium dioxide and carbon black.  Other specified constituents of the emulsion include octyl alcohol, turpentine, pine oil, petroleum hydrocarbons, coal-tar naphtha, ammonium hydroxide, rubber latex and dimethyl trimethylol melamine.  Specifications 522,941, 523,090, 524,803, 561,641, 644,390, 647,251, 669,739, U.S.A. Specifications 2,267,620, 2,504,136 2,533,270, 2,600,890, 2,606,902, 2,848,431 and German Specification 863,055 are referred to.