Abstract: A nonaqueous ink composition contains organic solvents. The organic solvents include an organic solvent (a) and an organic solvent (b). Organic solvent (a): Glycol ether dialkyl. Organic solvent (b): At least one selected from the group consisting of alkylamide-based solvents (b1), cyclic amide-based solvents (b2), and lactone-based solvents (b3) each having a ring including six or more members.

Abstract: A recording method for discharging, onto the surface of a substrate, an inkjet ink composition containing an organic solvent by using an inkjet head provided with constituent members bonded by a cured product of an adhesive, the organic solvent containing the following organic solvent (a). Organic solvent (a): at least one substance selected from the group consisting of alkylamide-based solvents (a1), cyclic amide-based solvents (a2), and lactone-based solvents (a3).

Abstract: A non-aqueous ink composition which has superior printing performance, such as continuous discharge stability, and also has excellent storage stability and excellent coloring properties, and with which printed matter having superior durability can be obtained. A non-aqueous ink composition discharged using an inkjet method, the composition containing an organic solvent, a colorant, and a resin, where the resin contains at least one resin selected from the group consisting of acrylic resins, vinyl chloride-vinyl acetate copolymer resins, and cellulose resins, and a resin having intrinsic viscosity at 25° C. of 90 mL/g or more accounts for up to 5 mass% of the entire resin.

Abstract: An object of the present invention is to provide: a pigment dispersion liquid for inkjet ink, which is stable for a long period of storage and which increases repellency to ink ejection surface. Disclosed is a pigment dispersion liquid for inkjet ink, comprising: a pigment; a pigment dispersing agent; and a compound having an ethylenically unsaturated double bond, wherein the pigment dispersing agent has an amine value of 20 mgKOH/g or less and an acid value of 10 mgKOH/g or less, contains one or more components selected from the group consisting of: a copolymer having a styrene-derived repeating unit, a repeating unit derived from an unsaturated fatty acid having 12 or more carbon atoms, and a repeating unit derived from a polyalkylene oxide having an ethylenically unsaturated double bond; a specific salt of the copolymer and an amine derivative of the copolymer.

Abstract: An object of the present invention is to provide: a pigment dispersion liquid for inkjet ink, which is stable for a long period of storage and which increases repellency to ink ejection surface. Disclosed is a pigment dispersion liquid for inkjet ink, comprising: a pigment; a pigment dispersing agent; and a compound having an ethylenically unsaturated double bond, wherein the pigment dispersing agent has an amine value of 20 mgKOH/g or less and an acid value of 10 mgKOH/g or less, contains one or more components selected from the group consisting of: a copolymer having a styrene-derived repeating unit, a repeating unit derived from an unsaturated fatty acid having 12 or more carbon atoms, and a repeating unit derived from a polyalkylene oxide having an ethylenically unsaturated double bond; a specific salt of the copolymer and an amine derivative of the copolymer.

Abstract: An object of the present invention is to provide: a pigment dispersion liquid for inkjet ink, which is stable for a long period of storage and which increases repellency to ink ejection surface. Disclosed is a pigment dispersion liquid for inkjet ink, comprising: a pigment; a pigment dispersing agent; and a compound having an ethylenically unsaturated double bond, wherein the pigment dispersing agent has an amine value of 20 mgKOH/g or less and an acid value of 10 mgKOH/g or less, contains one or more components selected from the group consisting of: a copolymer having a styrene-derived repeating unit, a repeating unit derived from an unsaturated fatty acid having 12 or more carbon atoms, and a repeating unit derived from a polyalkylene oxide having an ethylenically unsaturated double bond; a specific salt of the copolymer and an amine derivative of the copolymer.

Abstract: An object of the present invention is to provide: a pigment dispersion liquid for inkjet ink, which is stable for a long period of storage and which increases repellency to ink ejection surface. Disclosed is a pigment dispersion liquid for inkjet ink, comprising: a pigment; a pigment dispersing agent; and a compound having an ethylenically unsaturated double bond, wherein the pigment dispersing agent has an amine value of 20 mgKOH/g or less and an acid value of 10 mgKOH/g or less, contains one or more components selected from the group consisting of: a copolymer having a styrene-derived repeating unit, a repeating unit derived from an unsaturated fatty acid having 12 or more carbon atoms, and a repeating unit derived from a polyalkylene oxide having an ethylenically unsaturated double bond; a specific salt of the copolymer and an amine derivative of the copolymer.