Abstract: Provided are an active energy ray-curable inkjet ink for a beverage container and applications thereof, the inkjet ink containing a polymerizable monomer and a polymerizable surfactant. Also provided are an active energy ray-curable inkjet ink set and applications thereof, the inkjet ink set containing a first ink containing a polyfunctional monomer and a second ink containing a monofunctional monomer, in which at least one of the first ink or the second ink contains a polymerizable surfactant.

Abstract: An ink set includes an ink-jet color ink that contains a colorant, an organic solvent, a polymerizable compound, and a photopolymerization initiator and a clear ink which contains an organic solvent and a vinyl chloride-vinyl acetate copolymer and in which Mt2/Mt1 is 0.40 or more where Mt1 represents a total mass content of a nonvolatile component, and Mt2 represents a mass content of the vinyl chloride-vinyl acetate copolymer.

Abstract: Provided is an ink jet liquid composition including an organic solvent, a bifunctional urethane (meth)acrylate oligomer having a weight-average molecular weight of 2,000 to 15,000, a photopolymerization initiator, and a vinyl chloride-vinyl acetate copolymer, in which a content of the organic solvent is 40% by mass or more and 90% by mass or less with respect to a total mass of the liquid composition. Also provided is an ink jet recording method using the ink jet liquid composition.

Abstract: An ink jet liquid composition contains an organic solvent, a polymerizable compound, a photopolymerization initiator, and a polyether-modified siloxane compound having a weight-average molecular weight of 3,000 or more, and the content of the organic solvent is 40% by mass or more and 90% by mass or less with respect to the total mass of the composition. In addition, an ink jet recording method using the ink jet liquid composition is provided.

Abstract: An ink composition including: a microcapsule having: a shell having a three-dimensional cross-linked structure including at least one of a urethane bond or a urea bond; and a core encapsulated by the shell; a colorant selected from the group consisting of a colorant having an ionic group and a colorant at least a part of a surface of which being covered with a dispersant having an ionic group; and water, a content ratio of an acidic group-containing compound having at least an acidic group, an acid dissociation constant of 5 or less, and a molecular weight of 2000 or less, relative to a total mass of the ink composition, is 0.5 mass % or less; an ink set, a method for producing an ink composition, and an image recording method.

Abstract: An ink set includes an ink-jet color ink that contains a colorant, an organic solvent, a polymerizable compound, and a photopolymerization initiator and a clear ink which contains an organic solvent and a vinyl chloride-vinyl acetate copolymer and in which Mt2/Mt1 is 0.40 or more where Mt1 represents a total mass content of a nonvolatile component, and Mt2 represents a mass content of the vinyl chloride-vinyl acetate copolymer.

Abstract: Provided are an ink jet recording method including a colored ink jetting step of jetting a colored ink including a coloring agent and an organic solvent from an ink jet head onto a recording medium, a colored ink heating step of heating the colored ink jetted onto the recording medium by maintaining a surface temperature of the recording medium at 40° C. or higher, a colorless ink jetting step of jetting a colorless ink including a polymerizable compound, a photopolymerization initiator, and an organic solvent from the ink jet head onto the colored ink after the heating, a colorless ink heating step of heating the colorless ink jetted onto the colored ink after the heating by maintaining the surface temperature of the recording medium at 40° C. or higher, and a colorless ink curing step of curing the colorless ink by irradiating the heated colorless ink with an active energy ray and an ink jet recording device.

Abstract: Provided is an ink jet recording method, including a step of jetting, on a substrate, an ink composition A that contains a microcapsule having at least a polymerizable compound within the microcapsule, a high boiling solvent, water, and a colorant, and an ink composition B that contains a microcapsule having at least a polymerizable compound within the microcapsule, a high boiling solvent, water, and carbon black; and a step of heating the ink composition A and the ink composition B which have been jetted on the substrate, in which absorbance ABSA of the ink composition A and absorbance ABSB of the ink composition B satisfy Formula (1), and a concentration MA of the high boiling solvent contained in the ink composition A and a concentration MB of the high boiling solvent in the ink composition B satisfy Formula (2).

Abstract: An actinic ray-curable-type inkjet ink composition for 3D printing includes an acrylate monomer A capable of forming a homopolymer having a glass transition temperature of from 25° C. to 120° C.; an acrylate monomer B capable of forming a homopolymer having a glass transition temperature of ?60° or higher and lower than 25° C.; a bifunctional acrylate oligomer C having a weight-average molecular weight of from 2,000 to 20,000; and an acylphosphine oxide compound, in which the mass content of bifunctional or higher-functional acrylate compounds is 15% by mass or less.

Abstract: An actinic ray-curable-type inkjet ink set for three-dimensional printing and a three-dimensional printing system are provided. The actinic ray-curable-type inkjet ink set for three-dimensional printing includes a white ink composition W and a color ink composition C. The three-dimensional printing system includes printing means for jetting out, a plurality of times, each of a white ink composition W and a color ink composition C using an inkjet head so as to form a color layer on a white modeled object, based on cross-sectional information of a three-dimensional modeled object.

Abstract: An ink jet liquid composition contains an organic solvent, a polymerizable compound, a photopolymerization initiator, and a polyether-modified siloxane compound having a weight-average molecular weight of 3,000 or more, and the content of the organic solvent is 40% by mass or more and 90% by mass or less with respect to the total mass of the composition. In addition, an ink jet recording method using the ink jet liquid composition is provided.

Abstract: Provided are an ink set having: a colored ink including a solvent A1 at a content of 30% by mass or more, a polymer C1, and a colorant; and a clear ink including a solvent A2 at a content of 30% by mass or more and a bifunctional or higher-functional (meth)acrylate compound X2 having a weight average molecular weight of 1,000 to 30,000, the clear ink including X2 at a content of 5% by mass or more, in which the solubility of C1 in A2 is 10% by mass or higher; and an image forming method using this ink set.

Abstract: An ink jet recording method has an ejection step of ejecting, onto a substrate, an ink composition A that includes water, a coloring agent, a photopolymerization initiator, and a microcapsule enclosing a polymerizable compound therein, and an ink composition B that includes water, a coloring agent, a photopolymerization initiator, and a microcapsule enclosing a polymerizable compound therein; and an irradiation step of irradiating, with light, the ink composition A and the ink composition B ejected on the substrate. An absorbance ABSA of the ink composition A and an absorbance ABSB of the ink composition B satisfy a formula (1), and a concentration MA of the microcapsule included in the ink composition A and a concentration MB of the microcapsule included in the ink composition B satisfy a formula (2).

Abstract: Provided is an ink jet liquid composition including an organic solvent, a bifunctional urethane (meth)acrylate oligomer having a weight-average molecular weight of 2,000 to 15,000, a photopolymerization initiator, and a vinyl chloride-vinyl acetate copolymer, in which a content of the organic solvent is 40% by mass or more and 90% by mass or less with respect to a total mass of the liquid composition. Also provided is an ink jet recording method using the ink jet liquid composition.

Abstract: Provided is an ink jet recording method, including a step of jetting, on a substrate, an ink composition A that contains a microcapsule having at least a polymerizable compound within the microcapsule, a high boiling solvent, water, and a colorant, and an ink composition B that contains a microcapsule having at least a polymerizable compound within the microcapsule, a high boiling solvent, water, and carbon black; and a step of heating the ink composition A and the ink composition B which have been jetted on the substrate, in which absorbance ABSA of the ink composition A and absorbance ABSB of the ink composition B satisfy Formula (1), and a concentration MA of the high boiling solvent contained in the ink composition A and a concentration MB of the high boiling solvent in the ink composition B satisfy Formula (2).

Abstract: An ink composition including: a microcapsule having: a shell having a three-dimensional cross-linked structure including at least one of a urethane bond or a urea bond; and a core encapsulated by the shell; a colorant selected from the group consisting of a colorant having an ionic group and a colorant at least a part of a surface of which being covered with a dispersant having an ionic group; and water, a content ratio of an acidic group-containing compound having at least an acidic group, an acid dissociation constant of 5 or less, and a molecular weight of 2000 or less, relative to a total mass of the ink composition, is 0.5 mass % or less; an ink set, a method for producing an ink composition, and an image recording method.

Abstract: Provided are an ink set having: a colored ink including a solvent A1 at a content of 30% by mass or more, a polymer C1, and a colorant; and a clear ink including a solvent A2 at a content of 30% by mass or more and a bifunctional or higher-functional (meth)acrylate compound X2 having a weight average molecular weight of 1,000 to 30,000, the clear ink including X2 at a content of 5% by mass or more, in which the solubility of C1 in A2 is 10% by mass or higher; and an image forming method using this ink set.

Abstract: An ink jet recording method has an ejection step of ejecting, onto a substrate, an ink composition A that includes water, a coloring agent, a photopolymerization initiator, and a microcapsule enclosing a polymerizable compound therein, and an ink composition B that includes water, a coloring agent, a photopolymerization initiator, and a microcapsule enclosing a polymerizable compound therein; and an irradiation step of irradiating, with light, the ink composition A and the ink composition B ejected on the substrate. An absorbance ABSA of the ink composition A and an absorbance ABSB of the ink composition B satisfy a formula (1), and a concentration MA of the microcapsule included in the ink composition A and a concentration MB of the microcapsule included in the ink composition B satisfy a formula (2).

Abstract: An ink-jet-printer liquid composition contains an organic solvent; a polymerizable compound having a weight-average molecular weight of 1000 or more and 30000 or less; a (meth)acrylic-modified polyorganosiloxane that has no polymerizable groups, that is a copolymer of a (meth)acrylate and a reactive polysiloxane having at least one of a polymerizable group and a mercapto group, and that has a weight-average molecular weight of 20000 or more and 400000 or less; and a photopolymerization initiator, wherein a content of the organic solvent relative to a total amount of the liquid composition is 40 mass % or more and 80 mass % or less, and a content of the (meth)acrylic-modified polyorganosiloxane relative to the total amount of the liquid composition is 0.1 mass % or more and 5.0 mass % or less.

Abstract: Provided are an ink jet recording method including a colored ink jetting step of jetting a colored ink including a coloring agent and an organic solvent from an ink jet head onto a recording medium, a colored ink heating step of heating the colored ink jetted onto the recording medium by maintaining a surface temperature of the recording medium at 40° C. or higher, a colorless ink jetting step of jetting a colorless ink including a polymerizable compound, a photopolymerization initiator, and an organic solvent from the ink jet head onto the colored ink after the heating, a colorless ink heating step of heating the colorless ink jetted onto the colored ink after the heating by maintaining the surface temperature of the recording medium at 40° C. or higher, and a colorless ink curing step of curing the colorless ink by irradiating the heated colorless ink with an active energy ray and an ink jet recording device.