Abstract: The method is a non-aqueous inkjet printing method including the steps of: ejecting droplets of a non-aqueous pigment ink containing at least a pigment and a non-aqueous solvent onto a surface of a printing medium to form dots composed of the non-aqueous pigment ink, and then ejecting droplets of a non-aqueous post-treatment liquid containing at least silica and an organic solvent toward the printing medium so that the droplets overlap with the dots composed of the non-aqueous pigment ink, wherein either of the non-aqueous pigment ink and the post-treatment liquid contains a water-soluble resin having an amino group.

Abstract: An inkjet printing process including forming an image by superposing two or more kinds of inks, wherein the two or more kinds of inks contain (A) an ink containing at least a first coloring material, a non-aqueous solvent, a non-aqueous resin, and a water-soluble resin having an amino group, and (B) an ink containing at least a second coloring material, a non-aqueous solvent, and a nitrogen-containing graft copolymer having a polyester side chain, and a non-aqueous ink set containing the ink (A) and the ink (B).

Abstract: A non-aqueous pigment ink includes a pigment, a non-aqueous solvent, a non-water-soluble resin and a water-soluble resin, wherein the non-water-soluble resin is an acrylic polymer formed by a copolymer of a monomer mixture containing at least an alkyl (meth)acrylate (A) having a C8 to C18 alkyl group and a monomer (B) having a ?-diketone group or ?-keto acid ester group.

Abstract: A non-aqueous pigment ink includes a pigment, a non-aqueous solvent, a non-water-soluble resin and a water-soluble resin, wherein the non-water-soluble resin is an acrylic polymer formed by a copolymer of a monomer mixture containing at least an alkyl (meth)acrylate (A) having a C8 to C18 alkyl group and a monomer (B) having a ?-diketone group or ?-keto acid ester group.

Abstract: A non-aqueous pigment ink includes a pigment, a non-aqueous solvent, a non-water-soluble resin and a water-soluble resin, wherein the non-water-soluble resin is an acrylic polymer formed by a copolymer of a monomer mixture containing at least an alkyl(meth)acrylate (A) having a C8 to C18 alkyl group and a monomer (B) having a ?-diketone group or ?-keto acid ester group.

Abstract: An inkjet printing process including forming an image by superposing two or more kinds of inks, wherein the two or more kinds of inks contain (A) an ink containing at least a first coloring material, a non-aqueous solvent, a non-aqueous resin, and a water-soluble resin having an amino group, and (B) an ink containing at least a second coloring material, a non-aqueous solvent, and a nitrogen-containing graft copolymer having a polyester side chain, and a non-aqueous ink set containing the ink (A) and the ink (B).

Abstract: The method is a non-aqueous inkjet printing method including the steps of: ejecting droplets of a non-aqueous pigment ink containing at least a pigment and a non-aqueous solvent onto a surface of a printing medium to form dots composed of the non-aqueous pigment ink, and then ejecting droplets of a non-aqueous post-treatment liquid containing at least silica and an organic solvent toward the printing medium so that the droplets overlap with the dots composed of the non-aqueous pigment ink, wherein either of the non-aqueous pigment ink and the post-treatment liquid contains a water-soluble resin having an amino group.

Abstract: A non-aqueous pigment ink includes a pigment, a non-aqueous solvent, a non-water-soluble resin and a water-soluble resin, wherein the non-water-soluble resin is an acrylic polymer formed by a copolymer of a monomer mixture containing at least an alkyl(meth)acrylate (A) having a C8 to C18 alkyl group and a monomer (B) having a ?-diketone group or ?-keto acid ester group.

Abstract: A non-aqueous ink composition for inkjet printing is provided, which comprises 0.01 to 10 wt % of at least one ionic substance (A) selected from the group consisting of quarterly ammonium salts, quarterly phosphonium salts, a combination of a fatty acid and/or an alkyl phosphate with an amine compound, and synergists, 0.1 to 20 wt % of an C12-25 alkyl(meth)acrylate copolymer (B) having 1 to 40 wt %, relative to a weight of the copolymer, of urethane moiety, 0.1 to 20 wt % of a pigment (C), and an organic solvent (D). The composition achieves excellent wiping durability and printed image density.

Abstract: An oily inkjet ink comprises a pigment, a dispersant, and a water-insoluble organic solvent, wherein an ester solvent contained in the water-insoluble organic solvent is an ester solvent that is represented by the general formula: CnHx—COO—CmH2m+1, in which n represents an integral number falling within the range of 8 to 15, m represents an integral number falling within the range of 4 to 7, and x represents a number falling within the range of 2n?1 to 2n+1. The ester solvent is contained in a containing quantity falling within the range of 10% by mass to 30% by mass with respect to the total quantity of the ink.

Abstract: A non-aqueous ink composition for inkjet printing is provided, which comprises 0.01 to 10 wt % of at least one ionic substance (A) selected from the group consisting of quarterly ammonium salts, quarterly phosphonium salts, a combination of a fatty acid and/or an alkyl phosphate with an amine compound, and synergists, 0.1 to 20 wt % of an C12-25 alkyl(meth)acrylate copolymer (B) having 1 to 40 wt %, relative to a weight of the copolymer, of urethane moiety, 0.1 to 20 wt % of a pigment (C), and an organic solvent (D). The composition achieves excellent wiping durability and printed image density.

Abstract: An oily inkjet ink comprises a pigment, a dispersant, and a water-insoluble organic solvent, wherein an ester solvent contained in the water-insoluble organic solvent is an ester solvent that is represented by the general formula: CnHx—COO—CmH2m+1, in which n represents an integral number falling within the range of 8 to 15, m represents an integral number falling within the range of 4 to 7, and x represents a number falling within the range of 2n?1 to 2n+1. The ester solvent is contained in a containing quantity falling within the range of 10% by mass to 30% by mass with respect to the total quantity of the ink.