Cationic latex fixative for ink applications

A method for manufacturing a cationic latex fixative for ink applications derived from a combination of 1 to 80.1 weight percent of a cationic monomer, 0.9 to 50.5 weight percent of a nonionic monomer that provides softness to the latex, and greater than 0 to 40.5 weight percent of a nonionic monomer that provide stiffness to the latex, the cationic monomer being selected from the group consisting of dimethylaminoethyl acrylate methyl chloride, dimethylaminoethyl methacrylate methyl chloride quaternary salt, acrylamidopropyltrimethylammonium chloride, [2-(acryloyloxy)ethyl](4-benzoylbenzyl)dimethylammonium bromide, methacrylamidopropyltrimethylammonium chloride, diallyldimethylammonium chloride, 2,6-diethyl-4-vinyl pyridine, 3-dodecyl-4-vinyl pyridine, and 2,3,5,6,-tetramethyl-4-vinyl pyridine, the method including:

• forming a first mixture including the monomers;
• heating the first mixture to an elevated temperature;
• forming a second mixture including an initiator;
• adding the second mixture to the first mixture to form an admix-ture;
• and
• heating the admixture to an elevated temperature for a period of time.

A method for printing an ink, the method comprising:

• providing an ink;
• providing a cationic latex fixative derived from:
• 1 to 80.1 weight percent of a cationic monomer, the cationic monomer being selected from the group consisting of dimethylaminoethyl acrylate methyl chloride, dimethylaminoethyl methacrylate methyl chloride quaternary salt, acrylamidopropyltrimethylammonium chloride, [2-(acryloyloxy)ethyl](4-benzoylbenzyl)dimethylammonium bromide, methacrylamidopropyltrimethylammonium chloride, diallyldimethylammonium chloride, 2,6-diethyl-4-vinyl pyridine, 3-dodecyl-4-vinyl pyridine, and 2,3,5,6,-tetramethyl-4-vinyl pyridine,
• 0.9 to 50.5 weight percent of a nonionic monomer that provides softness to the latex, and
• greater than 0 to 40.5 weight percent of a nonionic monomer that provides stiffness to the latex;
• and
• printing the ink and the cationic latex fixative in either order on a print medium.

A cationic latex fixative for ink applications derived from a combination consisting essentially of:

• 1 to 80.1 weight percent of one or more cationic monomers selected from the group consisting of 2-(methacryloyloxy)ethyl trimethylammonium chloride, dimethylaminoethyl acrylate methyl chloride, dimethylaminoethyl methacrylate methyl chloride quaternary salt, acrylamidopropyltrimethylammonium chloride, [2-(acryloyloxy)ethyl](4-benzoylbenzyl)dimethylammonium bromide, methacrylamidopropyltrimethylammonium chloride, 4-vinyl pyridine, 2,6-diethyl-4-vinyl pyridine, 3-dodecyl-4-vinyl pyridine, and 2,3,5,6,-tetramethyl-4-vinyl pyridine;
• 0.9 to 50.5 weight percent of one or more nonionic monomers that provides softness to the latex selected from the group consisting of n-butyl (meth)acrylate, n-hexyl (meth)acrylate, 2-ethyl hexyl acrylate, n-octyl (meth)acrylate, n-decyl (meth)acrylate, n-dodecyl (meth)acrylate, tetradecyl (meth)acrylate, n-amyl (meth)acrylate, neopentyl (meth)acrylate, cyclopentyl (meth)acrylate, lauryl (meth)acrylate, palmityl (meth)acrylate, and stearyl (meth)acrylate;
• and
• greater than 0 to 40.5 weight percent of one or more nonionic monomers that provide stiffness to the latex selected from the group consisting of styrene, acrylonitrile, methyl methacrylate, alpha-methyl styrene, vinyl toluene, and vinyl naphthalene.