Abstract: A UV-curable aqueous inkjet printing ink composition contains: water-soluble acrylamide-based monomers by 20.0 to 70.0% by mass, water-soluble hydroxyl group-containing monofunctional monomers by 5.0 to 60.0% by mass, and water-insoluble polymerizable compounds by 8.0 to 35.0% by mass, relative to the total mass of all polymerizable components; a photopolymerizable initiator and/or sensitizer by 3.0 to 10.0 parts by mass relative to 100 parts by mass representing the total mass of all polymerizable components; a pigment; and water; wherein the ratio of the water-soluble acrylamide-based monomers and water-soluble hydroxyl group-containing monofunctional monomers, (water-soluble acrylamide-based monomers/water-soluble hydroxyl group-containing monofunctional monomers), is 0.3 to 10.0; and the ink composition has ability to be partially cured by being irradiated with a UV-LED light having a peak wavelength between 365 and 405 nm, to a cumulative light quantity of 100 mJ/cm2 or less.

Abstract: This continuous type inkjet ink composition contains a dye, a resin, an electrical conductivity imparting agent, and an organic solvent. The dye is an organic dye having a disazo backbone. The electrical conductivity imparting agent is an ionic compound having, at an anionic portion thereof, at least one element selected from the group consisting of phosphorus and boron. The continuous type inkjet ink composition causes the contained dye to be dissolved therein, and enables obtaining of a printed matter having excellent retort resistance.

Abstract: A digital embossing creation method includes landing a first active energy ray curable inkjet ink composition on a substrate surface by inkjet printing in the form of liquid droplets of 10.0 pl or greater in volume per droplet, and then irradiating it with an active energy ray for pinning, to form a first layer; and next, landing a second active energy ray curable inkjet ink composition on the first layer by inkjet printing in the form of liquid droplets of 10.0 pl or greater in volume per droplet, and then irradiating it with an active energy ray for pinning, to form a second layer wherein the first and second compositions have a viscosity of 14.0 cps or higher at 25° C., and a value of [(surface tension of the second composition before curing)?(surface tension of the first composition before curing)] is 4.0 mN/m or greater.

Abstract: Provided is an ink composition for solvent-based inkjet printing, including a colorant, a dispersant, and a solvent, in which the colorant includes a pigment and/or a dye, the solvent includes a saturated fatty acid diester-based solvent and an unsaturated fatty acid monoester-based solvent, a total amount of the saturated fatty acid diester-based solvent and the unsaturated fatty acid monoester-based solvent is 50% by mass or greater with respect to a total amount of the ink composition for solvent-based inkjet printing, and a mass ratio of the saturated fatty acid diester-based solvent to the unsaturated fatty acid monoester-based solvent is 2:8 to 8:2.

Abstract: An object of the present invention is to provide a photocurable aqueous ink composition for inkjet printing that is excellent in all aspects including miscibility when components excluding pigments and pigment dispersants are mixed, curability during printing, adhesion property and water resistance of a printed coating film. As a solution, provided is a photocurable aqueous ink composition for inkjet printing including: water by 10.0 to 45.0% by mass in the photocurable aqueous ink composition for inkjet printing; a colorant; a water-soluble polymerizable compound containing N-monosubstituted acrylamide; and a photoinitiator.

Abstract: An oil-based inkjet ink composition containing a pigment, a solvent, a binder resin and a pigment-dispersing agent. The solvent contains a higher fatty acid alkyl ester compound having 12-30 carbon atoms and contains substantially no mineral oil. The binder resin is an acrylic resin and/or a chlorinated polypropylene resin. The composition has a viscosity of 2 mPa·s to 30 mPa·s (at 25° C.). The oil-based inkjet ink composition contains substantially no mineral oil, and is excellent in terms of ejection stability, low volatility and suppressing a decrease in OD value.

Abstract: A non-aqueous inkjet ink composition for printing on a resin base material contains: 2.5 to 10.0% by mass of carbon black; 80.0% by mass or more of organic solvent(s) whose evaporation rate is 20 to 80 based on the evaporation rate of butyl acetate being 100; and a resin; and has a property to reach a dry state under irradiation of infrared light when printed on a resin base material. The inkjet ink composition exhibiting excellent discharge stability and drying property even when the inkjet ink composition is intended to manifest excellent printability on a resin base material even when it has already been partially printed.

Abstract: A digital embossing creation method includes landing a first active energy ray curable inkjet ink composition on a substrate surface by inkjet printing in the form of liquid droplets of 10.0 pl or greater in volume per droplet, and then irradiating it with an active energy ray for pinning, to form a first layer; and next, landing a second active energy ray curable inkjet ink composition on the first layer by inkjet printing in the form of liquid droplets of 10.0 pl or greater in volume per droplet, and then irradiating it with an active energy ray for pinning, to form a second layer wherein the first and second compositions have a viscosity of 14.0 cps or higher at 25° C., and a value of [(surface tension of the second composition before curing)?(surface tension of the first composition before curing)] is 4.0 mN/m or greater.

Abstract: A continuous-type inkjet ink composition includes a polyvinyl butyral resin (Resin 1) and a rosin ester resin (Resin 2), and organic solvents, wherein the content of Resin 1 in the inkjet ink composition is 1.0 to 8.0 percent by mass, and the content ratio of Resin 1 and Resin 2 satisfies “Resin 1:Resin 2=20:1 to 10:8” based on ratio by mass, and the total quantity of organic solvents regulated by industrial health and safety regulation is 5 percent by mass or less in the inkjet ink composition. The composition demonstrates excellent discharge stability and jetting property as well as excellent adhesion to various types of base printing materials including polyolefin films with no surface treatment.

Abstract: An object is to provide a continuous inkjet ink composition that has excellent storage stability and anticorrosion effect on a metal member, and that allows printing with good image quality. As a solution, a continuous inkjet ink composition is provided that includes a pigment, a resin, a metal salt of thiocyanic acid at 0.05 to 1.7% by mass in the composition, and tetraalkylammonium hexafluorophosphate at 0.05 to 2.7% by mass in the composition.

Abstract: A UV-curable aqueous inkjet printing ink composition contains: water-soluble acrylamide-based monomers by 20.0 to 70.0% by mass, water-soluble hydroxyl group-containing monofunctional monomers by 5.0 to 60.0% by mass, and water-insoluble polymerizable compounds by 8.0 to 35.0% by mass, relative to the total mass of all polymerizable components; a photopolymerizable initiator and/or sensitizer by 3.0 to 10.0 parts by mass relative to 100 parts by mass representing the total mass of all polymerizable components; a pigment; and water; wherein the ratio of the water-soluble acrylamide-based monomers and water-soluble hydroxyl group-containing monofunctional monomers, (water-soluble acrylamide-based monomers/water-soluble hydroxyl group-containing monofunctional monomers), is 0.3 to 10.0; and the ink composition has ability to be partially cured by being irradiated with a UV-LED light having a peak wavelength between 365 and 405 nm, to a cumulative light quantity of 100 mJ/cm2 or less.

Abstract: A UV-curable aqueous inkjet printing ink composition contains: water-soluble acrylamide-based monomers by 20.0 to 70.0% by mass, water-soluble hydroxyl group-containing monofunctional monomers by 5.0 to 60.0% by mass, and water-insoluble polymerizable compounds by 8.0 to 35.0% by mass, relative to the total mass of all polymerizable components; a photopolymerizable initiator and/or sensitizer by 3.0 to 10.0 parts by mass relative to 100 parts by mass representing the total mass of all polymerizable components; a pigment; and water; wherein the ratio of the water-soluble acrylamide-based monomers and water-soluble hydroxyl group-containing monofunctional monomers, (water-soluble acrylamide-based monomers/water-soluble hydroxyl group-containing monofunctional monomers), is 0.3 to 10.0; and the ink composition has ability to be partially cured by being irradiated with a UV-LED light having a peak wavelength between 365 and 405 nm, to a cumulative light quantity of 100 mJ/cm2 or less.

Abstract: An inkjet printing device for multi-color printing includes: multi-color inkjet nozzles that move in the direction perpendicular to the moving direction of the target base printing material and also in the direction parallel to the surface of the target base printing material; plasma ejection ports provided downstream of the multi-color inkjet nozzles in a manner oriented facing the surface of the multiple colored inks printed on the target base printing material; and an electron beam irradiation part located on the downstream side of the inkjet nozzles and plasma ejection ports, in a manner oriented facing the printed surface of the target base printing material.

Abstract: An object of the present invention is to provide a photocurable aqueous ink composition for inkjet printing that is excellent in all aspects including miscibility when components excluding pigments and pigment dispersants are mixed, curability during printing, adhesion property and water resistance of a printed coating film. As a solution, provided is a photocurable aqueous ink composition for inkjet printing including: water by 10.0 to 45.0% by mass in the photocurable aqueous ink composition for inkjet printing; a colorant; a water-soluble polymerizable compound containing N-monosubstituted acrylamide; and a photoinitiator.

Abstract: An object is to provide a continuous inkjet ink composition that has excellent storage stability and anticorrosion effect on a metal member, and that allows printing with good image quality. As a solution, a continuous inkjet ink composition is provided that includes a pigment, a resin, a metal salt of thiocyanic acid at 0.05 to 1.7% by mass in the composition, and tetraalkylammonium hexafluorophosphate at 0.05 to 2.7% by mass in the composition.

Abstract: An aqueous inkjet printing ink composition that is cured by the following radiation rays (1) includes: an acylphosphine oxide-based compound as a photopolymerization initiator of 3 to 10% by mass; a monofunctional water-soluble monomer of 30 to 50% by mass; a multifunctional water-soluble monomer of 10 to 30% by mass; and a pigment based on the whole ink composition, wherein the radiation rays (1) are radiation rays that contain a wavelength of 800 nm and a wavelength of 385 nm and have an irradiation intensity of 100 mW/cm2 or less at a wavelength of 385 nm. The aqueous inkjet printing ink composition can be cured by specific radiation rays and does not change color of the ink composition in an exemplary embodiment.

Abstract: Disclosed is an electron beam curable water-based ink-jet ink composition comprising a colorant, a resin emulsion, a water-soluble photopolymerizable monomer, and water, wherein the water-soluble photopolymerizable monomer comprises an acrylamide derivative, wherein a content of the acrylamide derivative is 20 to 55% by mass in the electron beam curable water-based ink-jet ink composition, and wherein a content of the resin emulsion is 1 to 11% by mass in terms of a solid content in the electron beam curable water-based ink-jet ink composition.

Abstract: An inkjet printing device for multi-color printing includes: multi-color inkjet nozzles that move in the direction perpendicular to the moving direction of the target base printing material and also in the direction parallel to the surface of the target base printing material; plasma ejection ports provided downstream of the multi-color inkjet nozzles in a manner oriented facing the surface of the multiple colored inks printed on the target base printing material; and an electron beam irradiation part located on the downstream side of the inkjet nozzles and plasma ejection ports, in a manner oriented facing the printed surface of the target base printing material.

Abstract: An inkjet printing device includes: an inkjet nozzle that moves on a printing surface of a target base printing material in a direction perpendicular to a moving direction of the target base printing material and parallel with the printing surface of the target base printing material; a plasma ejection port disposed downstream of the inkjet nozzle in the moving direction of the target base printing material, for treating the printing surface of the target base printing material with a plasma; and an electron beam irradiation part disposed downstream of the plasma ejection port in the moving direction of the target base printing material, for treating the printing surface of the target base printing material with an electron beam. The device allows inks used in printing to be cured without fail even when they contain no photopolymerization initiator.

Abstract: A continuous-type inkjet ink composition includes a polyvinyl butyral resin (Resin 1) and a rosin ester resin (Resin 2), and organic solvents, wherein the content of Resin 1 in the inkjet ink composition is 1.0 to 8.0 percent by mass, and the content ratio of Resin 1 and Resin 2 satisfies “Resin 1:Resin 2=20:1 to 10:8” based on ratio by mass, and the total quantity of organic solvents regulated by industrial health and safety regulation is 5 percent by mass or less in the inkjet ink composition. The composition demonstrates excellent discharge stability and jetting property as well as excellent adhesion to various types of base printing materials including polyolefin films with no surface treatment.