Abstract: A task to be achieved by the present invention is to provide a method for producing a printed matter. The ink has excellent adhesion to an ink unabsorbent or non-absorbent recording medium, such as a resin film or coated paper, which is unlikely to absorb a solvent contained in an ink, and excellent setting property. The present invention is directed to a method for producing a printed matter, using an ink including a binder (A) having a carbonyl group, a compound (B) having a structure capable of reacting with the carbonyl group, and an aqueous medium in which the binder (A) and the compound (B) are dissolved or dispersed.

Abstract: The problem to be solved by the present invention is to provide an ink that can be used f producing a print having no streaks even in a case where the distance between the surface of a recording medium such as a cardboard and an ink jet head is long. The present invention relates to an ink for use in an ink jet recording method in which the distance from a surface (x) having an ink discharge port of an ink jet head to a position (y) where a line perpendicular to the surface (x) intersects with a recording medium is 2 mm or more, the ink having a viscosity in the range of 2 mPa·s or more and less than 9 mPa·s and a surface tension in the range of 20 mN/m to 40 mN/m.

Abstract: A task to be achieved by the present invention is to provide an ink having excellent adhesion to an ink unabsorbent or non-absorbent recording medium, such as a resin film or coated paper, which is unlikely to absorb a solvent contained in an ink, and excellent setting property. The present invention is directed to an ink including a binder (A) having a carbonyl group, a compound (B) having a structure capable of reacting with the carbonyl group, and an aqueous medium in which the binder (A) and the compound (B) are dissolved or dispersed.

Abstract: The problem to be solved by the present invention is to provide an ink that can be used f producing a print having no streaks even in a case where the distance between the surface of a recording medium such as a cardboard and an ink jet head is long. The present invention relates to an ink for use in an ink jet recording method in which the distance from a surface (x) having an ink discharge port of an ink jet head to a position (y) where a line perpendicular to the surface (x) intersects with a recording medium is 2 mm or more, the ink having a viscosity in the range of 2 mPa·s or more and less than 9 mPa·s and a surface tension in the range of 20 mN/m to 40 mN/m.

Abstract: An aqueous ink set for inkjet recording includes first to n-th aqueous inks for inkjet recording. Each of the aqueous inks contains a pigment, water, a surfactant, a binder resin, a urea compound, and a water-soluble organic solvent (1) having a boiling point of from 100° C. to 200° C. inclusive and a vapor pressure at 20° C. of 0.5 hPa or more. All the first to n-th aqueous inks satisfy a specific expression for ?1 and ?2. ?1 is the surface tension of one of the first to n-th aqueous inks that is jetted as droplets prior to different one, and ?2 is the surface tension of the different one that is jetted as droplets after the one of the first to n-th aqueous inks.

Abstract: A water-based ink for inkjet recording contains a pigment, water, organic solvents, at least one compound selected from urea compounds, and a binder resin. The organic solvents include at least (1) a water-soluble organic solvent having a boiling point of from 100° C. to 200° C. inclusive and a vapor pressure at 20° C. of 0.5 hPa or more, (2) propylene glycol, and (3) glycerin, diglycerin, and/or a derivative thereof serving as an organic solvent. Preferably, the water-based ink further contains a polymer (A) serving as a pigment dispersant. The polymer (A) has an anionic group and has a solubility in water of 0.1 g/100 mL or more, a number average molecular weight within the range of 1,000 to 6,000, and an acid value within the range of 40 to 190 mg KOH/g.

Abstract: A water-based ink for inkjet recording contains a pigment, water, organic solvents, at least one compound selected from urea compounds, and a binder resin. The organic solvents include at least (1) a water-soluble organic solvent having a boiling point of from 100° C. to 200° C. inclusive and a vapor pressure at 20° C. of 0.5 hPa or more, (2) propylene glycol, and (3) glycerin, diglycerin, and/or a derivative thereof serving as an organic solvent. Preferably, the water-based ink further contains a polymer (A) serving as a pigment dispersant. The polymer (A) has an anionic group and has a solubility in water of 0.1 g/100 mL or more, a number average molecular weight within the range of 1,000 to 6,000, and an acid value within the range of 40 to 190 mg KOH/g.

Abstract: A separated colored liquid composition used in a device involving an optical modulation technique in which a liquid is moved or subjected to a change in shape by an external electric field to change color or brightness, the separated colored liquid composition containing a colored liquid, a non-colored liquid immiscible with the colored liquid, and at least one additive selected from a fluorine-based surfactant and a silicone-based surfactant. Use of such a composition as a composition for forming an image in a device involving an optical modulation technique in which a liquid is moved or subjected to a change in shape by an external electric field to change color or brightness.

Abstract: An active-energy-ray-curable ink jet recording ink composition is provided, in which (1) a polymerizable compound having an active-energy-ray-polymerizable group and a polymerizable compound having at least two active-energy-ray-polymerizable groups are used in amounts of 10 to 25 mass % and 75 to 90 mass % relative to the total amount of the active-energy-ray-polymerizable compounds, respectively; (2) the polymerizable compound having an active-energy-ray-polymerizable group includes 10 to 20 mass % of N-vinylcaprolactam; and (3) the polymerizable compound having at least two active-energy-ray-polymerizable groups includes 15 to 35 mass % of 2-(2-vinyloxyethoxy)ethyl(meth)acrylate. Furthermore, a method for forming an image is provided.

Abstract: An active-energy-ray-curable inkjet recording ink composition is provided, in which a polymerizable compound having an active-energy-ray-polymerizable group and a polymerizable compound having at least two active-energy-ray-polymerizable groups are used in amounts of 60 to 95 mass % and 5 to 40 mass % relative to the total amount of the active-energy-ray-polymerizable compound, respectively; the polymerizable compound having an active-energy-ray-polymerizable group includes N-vinyl-2-caprolactam and isobornyl acrylate in amounts of 1 to 15 mass % and 1 to 25 mass % relative to the total amount of the active-energy-ray-polymerizable compound, respectively; and the polymerizable compound having at least two active-energy-ray-polymerizable groups includes a polymerizable compound having a vinyl ether group. Furthermore, a method for forming an image is provided.

Abstract: A separated colored liquid composition used in a device involving an optical modulation technique in which a liquid is moved or subjected to a change in shape by an external electric field to change color or brightness, the separated colored liquid composition containing a colored liquid, a non-colored liquid immiscible with the colored liquid, and at least one additive selected from a fluorine-based surfactant and a silicone-based surfactant. Use of such a composition as a composition for forming an image in a device involving an optical modulation technique in which a liquid is moved or subjected to a change in shape by an external electric field to change color or brightness.

Abstract: An active-energy-ray-curable inkjet recording ink composition is provided, in which a polymerizable compound having an active-energy-ray-polymerizable group and a polymerizable compound having at least two active-energy-ray-polymerizable groups are used in amounts of 60 to 95 mass % and 5 to 40 mass % relative to the total amount of the active-energy-ray-polymerizable compound, respectively; the polymerizable compound having an active-energy-ray-polymerizable group includes N-vinyl-2-caprolactam and isobornyl acrylate in amounts of 1 to 15 mass % and 1 to 25 mass % relative to the total amount of the active-energy-ray-polymerizable compound, respectively; and the polymerizable compound having at least two active-energy-ray-polymerizable groups includes a polymerizable compound having a vinyl ether group. Furthermore, a method for forming an image is provided.

Abstract: An active-energy-ray-curable ink jet recording ink composition is provided, in which (1) a polymerizable compound having an active-energy-ray-polymerizable group and a polymerizable compound having at least two active-energy-ray-polymerizable groups are used in amounts of 10 to 25 mass % and 75 to 90 mass % relative to the total amount of the active-energy-ray-polymerizable compounds, respectively; (2) the polymerizable compound having an active-energy-ray-polymerizable group includes 10 to 20 mass % of N-vinylcaprolactam; and (3) the polymerizable compound having at least two active-energy-ray-polymerizable groups includes 15 to 35 mass % of 2-(2-vinyloxyethoxy)ethyl(meth)acrylate. Furthermore, a method for forming an image is provided.