Abstract: An ink composition for ultraviolet-curable inkjet printing comprising polymerization components and a photopolymerization initiator, wherein the polymerization components include (A) a polyfunctional amine-modified oligomer, (B) a nitrogen-containing monomer, (C) an aromatic ring-containing monomer, and (D) a polyfunctional monomer, wherein (A) comprises an acrylated amine compound having two photopolymerizable functional groups and two amino groups in a molecule, wherein (B) comprises at least one of acryloylmorpholine or vinyl caprolactam, wherein (C) comprises benzyl acrylate and phenoxyethyl acrylate, wherein (D) comprises at least one of dipropylene glycol diacrylate, 1,6-hexanediol diacrylate, and ethoxylated trimethylolpropane triacrylate, wherein a content of (A) is 0.8 to 11.0% by mass, wherein a content of (C) the aromatic ring-containing monomer is 32.0 to 75.0% by mass, and wherein a content of (D) is 1.5 to 14.0% by mass.

Abstract: An object is to obtain a photocurable inkjet printing ink composition demonstrating not only excellent LED curability and anti-yellowing property but also excellent solubility, while allowing its viscosity to be adjusted to an appropriate level even in the absence of solvent. As a solution, a photocurable inkjet printing ink composition is provided that contains 1.0 to 10.0% by mass of amine-modified oligomers relative to all photopolymerizable components, as well as 1.0 to 40.0 parts by mass of photopolymerization initiators expressed by formula (1) below, and 0.3 to 5.0 parts by mass of thioxanthone-based sensitizers relative to all photopolymerizable components representing 100 parts by mass.

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 a photo-curable inkjet printing ink composition, comprising (A) an acrylicated amine compound having two photopolymerizable functional groups and two amino groups in a molecule, (B) a (meth)acrylic monomer having an alkoxy group, and (C) at least one selected from the group consisting of hexanediol acrylate, 3-methyl-1,5-pentanediol diacrylate, dipropylene glycol diacrylate, and neopentyl glycol diacrylate hydroxypivalate, wherein a content of the component (A) is 3 to 18% by mass in the ink composition, wherein a content of the component (B) is 5 to 35% by mass in the ink composition, and wherein a content of the component (C) is 30 to 60% by mass in the ink composition.

Abstract: An object is to obtain a photocurable inkjet printing ink composition that demonstrates excellent preservation stability and discharge property, while also presenting curability under ultraviolet light from a light-emitting diode (LED) light source, as well as good adhesion, flexibility and tackiness. As a solution, a photocurable inkjet printing ink composition containing photopolymerizable compounds and photopolymerization initiator is provided, wherein the photocurable inkjet printing ink composition satisfies A to D: A. 2-(allyloxy methyl) methyl acrylate is contained by 5 to 40 percent by mass in all photopolymerizable compounds; B. multifunctional monomers and/or multifunctional oligomers of 0° C. or lower in glass transition temperature are contained by 5 to 20 percent by mass in all photopolymerizable compounds; C. amino group and/or amide group-containing monomers and/or oligomers are contained; and D. the ink composition has a viscosity of 30 mPa·s or lower at 25° C.

Abstract: An anti-migration coating agent for inhibiting a migration of ink compositions, contains a polyvinyl alcohol-based copolymer resin having a structural unit expressed by formula (1) below in the molecule (component A), and a polyvinyl alcohol-based (co)polymer resin having carbonyl groups in the molecule (component B): wherein R1 and R2 each independently represent a hydrocarbon group with 1 to 3 carbon atoms.

Abstract: An active energy ray-curable inkjet ink composition contains: (A) hydroxy group-containing monofunctional (meth)acrylates by 20.0 to 60.0% by mass in the total amount of all polymerizable components; (B) polyfunctional monomers having ether bonds; (C) amine-modified oligomers by 10.0 to 50.0% by mass in the total amount of all polymerizable components; (D) ethyl phenyl(2,4,6-trimethylbenzoyl)phosphinate as a polymerization initiator; and (E) polymeric sensitizers. The active energy ray-curable inkjet ink composition allows for printing on films used for food packaging that are subject to more stringent property requirements.

Abstract: An active energy ray-curable inkjet ink composition contains a pigment which contains Pigment Orange 71 and Pigment Violet 19 which is 30.0 to 85.0% by mass relative to a total mass of Pigment Violet 19 and Pigment Orange 71, and a photopolymerizable compound which contains, in a total amount of all polymerizable components,(A) 0.20 to 15.0% by mass of a multifunctional amine-modified oligomer; (B) 50.0% by mass or more of a monofunctional monomer; (C) 35.0% by mass or more of a monofunctional monomer whose glass transition temperature is 20° C. or more; (D) 35.0% by mass or more of a monofunctional monomer whose glass transition temperature is 10° C. or less; (E) 2.0 to 11.0% by mass of a multifunctional monomer whose glass transition temperature is 10° C. or less; and (F) 10.0 to 25.0% by mass of a nitrogen-containing monofunctional monomer.

Abstract: An object is to provide an active energy ray-curable inkjet printing ink composition characterized in that the ink composition has low viscosity and no odor, offers excellent storage stability, discharge stability, and curability, and generates no curing wrinkles when cured, while the cured coating film exhibits excellent bending tolerance property, rub resistance, and water resistance. A solution is an active energy ray-curable inkjet ink composition satisfying requirements A to D below: A: an amine-modified oligomer is contained by 1.0 to 20.0% by mass in all active energy ray-polymerizable components; B: alkoxy group-containing (meth)acrylates are contained by 2.0 to 20.0% by mass in all active energy ray-polymerizable components; C: a (meth)acrylate containing an alkyl group with 10 to 20 carbon atoms is contained by 2.0 to 25.

Abstract: Disclosed is an ink composition for photo-curable ink jet printing, comprising (A) at least one selected from the group consisting of hexanediol acrylate, 3-methyl-1,5-pentanediol diacrylate, dipropylene glycol diacrylate, and hydroxy pivalic acid neopentyl glycol diacrylate, (B) at least one of vinyl amide monomer and acryloyl amine monomer, (C) an acrylated amine compound having two photopolymerizable functional groups and two amino groups in a molecule, (D) a monofunctional monomer (excluding vinyl amide monomer which is the (B) component), and a photopolymerization initiator, wherein a content of the (A) component is 40 to 70% by mass, wherein a content of the (B) component is 5 to 30% by mass, wherein a content of the (C) component is 0.1 to 15% by mass, and wherein a viscosity is 200 mPa·s or less.

Abstract: An active energy ray-curable inkjet ink composition, except a certain photocurable inkjet printing ink composition, satisfies: (A) a polyfunctional amine-modified oligomer is contained by to 14.0% by mass; (B) monofunctional monomers are contained by 50.0% by mass or more; (C) a monofunctional monomer with a glass transition temperature of 20° C. or higher is contained by 30.0% by mass or more; (D) a monofunctional monomer with a glass transition temperature of or lower is contained by 20.0% by mass or more; (E) a polyfunctional monomer with a glass transition temperature of 10° C. or lower is contained by 3.0 to 12.0% by mass; and (F) a nitrogen-containing monofunctional monomer is contained by 30.0 to 50.0% by mass.

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 is to provide an active energy ray-curable inkjet printing ink composition that can demonstrate the effects of low viscosity, with its coating film generating no odor once cured while exhibiting excellent curability and no tackiness, and cured coating film demonstrating excellent bending tolerance property, abrasion resistance, and water resistance. As a solution, an active energy ray-curable inkjet printing ink composition satisfying requirements A to E below is provided: (A) the content of amine-modified oligomer is 1.0 to 20.0% by mass in the active energy ray-curable inkjet printing ink composition; (B) alkoxy group-containing (meth)acrylate monomers are contained by 2.0 to 20.0% by mass in the active energy ray-curable inkjet printing ink composition; (C) (meth)acrylate monomers having an alkyl group with 6 to 20 carbon atoms is contained by 2.0 to 25.

Abstract: An active energy ray-curable inkjet printing ink composition satisfies (A) to (E) below, where the total content of (D) and (E) accounts for 30.0 to 60.0% by mass: (A) an acrylated amine compound having two photopolymerizable functional groups and two amino groups in a molecule is contained by 1.0 to 20.0% by mass; (B) alkoxy group-containing (meth)acrylate monomers are contained by 2.0 to 20.0% by mass; (C) a (meth)acrylate monomer containing an alkyl group with 10 to 20 carbon atoms is contained by 2.0 to 25.0% by mass; (D) at least one type selected from the group that consists of 1,6-hexanediol diacrylate, 3-methyl-1,5-pentanediol diacrylate, dipropylene glycol diacrylate, propoxylated(2)neopentyl glycol diacrylate, and hydroxypivalic acid neopentyl glycol diacrylate is contained by 5.0 to 25.0% by mass; and (E) a plant oil-derived 1,10-decanediol diacrylate is contained by 10.0 to 40.0% by mass.

Abstract: An object is to obtain a photocurable inkjet printing ink composition that demonstrates excellent preservation stability and discharge stability, good adhesion, bending tolerance property, and tackiness, and high hardness. As a solution, a photocurable inkjet printing ink composition containing photopolymerizable compounds and photopolymerization initiator is provided, wherein the photocurable inkjet printing ink composition satisfies the requirements of A to E: A. 3,3,5-trimethyl cyclohexyl acrylate is contained by 5 to 50 percent by mass in all photopolymerizable compounds; B. multifunctional monomers and/or multifunctional oligomers of 10° C. or lower in glass transition temperature are contained by 1 to 15 percent by mass in all photopolymerizable compounds; C. monofunctional monomers are contained by a total of 40 percent by mass or more in all photopolymerizable compounds; D. amino group and/or amide group-containing monomers and/or oligomers are contained; and E.

Abstract: Provided is a photo-curable inkjet printing ink composition, comprising (A) an acrylicated amine compound having two photopolymerizable functional groups and two amino groups in a molecule, (B) a (meth)acrylic monomer having an alkoxy group, and (C) at least one selected from the group consisting of hexanediol acrylate, 3-methyl-1,5-pentanediol diacrylate, dipropylene glycol diacrylate, and neopentyl glycol diacrylate hydroxypivalate, wherein a content of the component (A) is 3 to 18% by mass in the ink composition, wherein a content of the component (B) is 5 to 35% by mass in the ink composition, and wherein a content of the component (C) is 30 to 60% by mass in the ink composition.

Abstract: Disclosed is an ink composition for photo-curable ink jet printing, comprising (A) at least one selected from the group consisting of hexanediol acrylate, 3-methyl-1,5-pentanediol diacrylate, dipropylene glycol diacrylate, and hydroxy pivalic acid neopentyl glycol diacrylate, (B) at least one of vinyl amide monomer and acryloyl amine monomer, (C) an acrylated amine compound having two photopolymerizable functional groups and two amino groups in a molecule, (D) a monofunctional monomer (excluding vinyl amide monomer which is the (B) component), and a photopolymerization initiator, wherein a content of the (A) component is 40 to 70% by mass, wherein a content of the (B) component is 5 to 30% by mass, wherein a content of the (C) component is 0.1 to 15% by mass, and wherein a viscosity is 200 mPa·s or less.

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: Clear inks are prone to heat-induced micro-gelling that can cause their storage stability to drop, and micro-gelling may also occur in clear inks with the passage of time, in which case their inkjet discharge property may drop. As a solution, a photocurable clear ink composition for inkjet printing is provided, which contains a photopolymerizable compound, a photopolymerization initiator, and an inorganic filler of 1 to 200 nm in average grain size accounting for 0.05 to 5.0 percent by mass in the composition, and whose visible light transmission factor is 30% or higher.

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.