Abstract: There is provided an ultraviolet-curable ink jet composition, which is stored in an storage body, including a pigment; a pigment dispersant; a polymerizable compound; and a photopolymerization initiator, in which water content is 0.05 mass % to 1.0 mass % based on the total amount of the ultraviolet-curable ink jet composition, and in which both the acid value and the amine value of the pigment dispersant are 50 mgKOH/g or less, and at least one of the acid value and the amine value thereof is 10 mgKOH/g or more.

Abstract: There is provided a treatment liquid which is used in a recording method in which recording is performed using an ink for ink jet recording containing a coloring material on a non-absorbent recording medium, the treatment liquid contains water, a coagulant coagulating components of an ink, and two or more types of organic solvents, the organic compounds do not contain the coagulant, a surfactant, and a resin, when calculating the product of a log P value and the content (% by mass) included in the treatment liquid for each of the organic compounds, the summation is equal to or less than ?10, and among the organic compounds, the content of a first organic compound of which the log P value is greater than 0 is 0.1% by mass to 10% by mass with respect to the total mass of the treatment liquid.

Abstract: Disclosed herein is a recording method, including: sequentially attaching a first reaction liquid, a first ink containing a color material, a second reaction liquid, and a second ink containing a color material to a non-absorptive recording medium or a low-absorptive recording medium in a superimposed manner, wherein the first reaction liquid contains a coagulant for coagulating or thickening a component of the first ink, and wherein the second reaction liquid contains a coagulant for coagulating or thickening a component of the second ink.

Abstract: A recording method includes first coating a treatment liquid A to a recording medium, a second coating a treatment liquid B to the recording medium after the first coating, and a discharging an ink composition including a coloring material to the recording medium by discharging from a nozzle after the second coating, and the treatment liquid A adjusts wettability of the treatment liquid B to the recording medium and includes at least any one of a resin and inorganic oxide fine particles, and the treatment liquid B thickens or insolubilizes the ink composition and includes at least any one of a polyvalent metal salt, an organic acid, and an organic acid salt.

Abstract: A recording method includes first coating a treatment liquid A to a recording medium, a second coating a treatment liquid B to the recording medium after the first coating, and a discharging an ink composition including a coloring material to the recording medium by discharging from a nozzle after the second coating, and the treatment liquid A adjusts wettability of the treatment liquid B to the recording medium and includes at least any one of a resin and inorganic oxide fine particles, and the treatment liquid B thickens or insolubilizes the ink composition and includes at least any one of a polyvalent metal salt, an organic acid, and an organic acid salt.

Abstract: There is provided an ultraviolet-curable ink jet composition, which is stored in an storage body, including a pigment; a pigment dispersant; a polymerizable compound; and a photopolymerization initiator, in which water content is 0.05 mass % to 1.0 mass % based on the total amount of the ultraviolet-curable ink jet composition, and in which both the acid value and the amine value of the pigment dispersant are 50 mgKOH/g or less, and at least one of the acid value and the amine value thereof is 10 mgKOH/g or more.

Abstract: A ink composition for ink jet recording in which a non-absorbent or low absorbent recording medium is used includes water; a color material; a surfactant; a compound I represented by general formula (I) below; and does not substantially include alkyl polyols with a standard boiling point of 280° C. or higher; in which the surfactant is at least one type selected from a group consisting of a fluorine-based surfactant and a siloxane-based surfactant with 5 or more siloxane units [In general formula (I), n represents an integer of 45 or higher to 230 or lower, each R1 independently represents an unmodified, an ether-modified, a polyester-modified, an epoxy-modified, an amine-modified, a carboxyl-modified, a fluorine-modified, an alkyloxy-modified, a mercapto-modified, a (meth)acryl-modified, a phenol-modified, a phenyl-modified, a carbinol-modified or an aralkyl-modified hydrocarbon group.].

Abstract: An ink jet method includes feeding an ultraviolet curing type ink jet composition from a composition storing body which stores an ultraviolet curing type ink jet composition, which contains a polymerizable compound and a hindered amine compound as a polymerization inhibitor, with a storing volume of the composition of 2.5 L to 20 L to an ink jet head through a channel, deaerating the ultraviolet curing type ink jet composition in the channel, and discharging the ultraviolet curing type ink jet composition from the ink jet head, in which an amount of a dissolved gas of the ultraviolet curing type ink jet composition after the deaeration is 30 ppm or less and an amount of a dissolved gas of the ultraviolet curing type ink jet composition stored in the composition storing body is 10 ppm or more.

Abstract: There is provided an ultraviolet-curable ink jet composition, which is stored in an storage body, including a pigment; a pigment dispersant; a polymerizable compound; and a photopolymerization initiator, in which water content is 0.05 mass % to 1.0 mass % based on the total amount of the ultraviolet-curable ink jet composition, and in which both the acid value and the amine value of the pigment dispersant are 50 mgKOH/g or less, and at least one of the acid value and the amine value thereof is 10 mgKOH/g or more.

Abstract: An ink set is used in one or more recording media selected from a non-ink-absorbing or low ink-absorbing medium, a medium having an arithmetic surface roughness Ra of 20 ?m or more, fabric, and plain paper. The ink set contains a glitter ink which is recorded by an ink jet head and contains a glitter pigment and a polymerizable ink which contains an active energy ray polymerizable compound and does not substantially contain a coloring material.

Abstract: There is provided an ultraviolet-curable ink jet composition, which is stored in an storage body, including a pigment; a pigment dispersant; a polymerizable compound; and a photopolymerization initiator, in which water content is 0.05 mass % to 1.0 mass % based on the total amount of the ultraviolet-curable ink jet composition, and in which both the acid value and the amine value of the pigment dispersant are 50 mgKOH/g or less, and at least one of the acid value and the amine value thereof is 10 mgKOH/g or more.

Abstract: There is provided a treatment liquid which is used in a recording method in which recording is performed using an ink for ink jet recording containing a coloring material on a non-absorbent recording medium, the treatment liquid contains water, a coagulant coagulating components of an ink, and two or more types of organic solvents, the organic compounds do not contain the coagulant, a surfactant, and a resin, when calculating the product of a logP value and the content (% by mass) included in the treatment liquid for each of the organic compounds, the summation is equal to or less than ?10, and among the organic compounds, the content of a first organic compound of which the logP value is greater than 0 is 0.1% by mass to 10% by mass with respect to the total mass of the treatment liquid.

Abstract: An ink jet method includes feeding an ultraviolet curing type ink jet composition from a composition storing body which stores an ultraviolet curing type ink jet composition, which contains a polymerizable compound and a hindered amine compound as a polymerization inhibitor, with a storing volume of the composition of 2 L or more to an ink jet head through a channel, deaerating the ultraviolet curing type ink jet composition in the channel, and discharging the ultraviolet curing type ink jet composition from the ink jet head, in which an amount of a dissolved gas of the ultraviolet curing type ink jet composition after the deaeration is 30 ppm or less and an amount of a dissolved gas of the ultraviolet curing type ink jet composition stored in the composition storing body is 10 ppm or more.

Abstract: An ultraviolet curable composition includes a polymerizable compound and is stored in a storage body, in which an amount of water is greater than or equal to 0.05 mass % and less than or equal to 1.0 mass % with respect to a total amount of the ultraviolet curable composition, a content of at least one metal element selected from a group consisting of Li, Na, K, Ag, Mg, Ca, Ba, Zn, Fe, Sn, Al, and Zr is greater than or equal to 10 ppm by mass, and a content of each metal element included in the group is less than or equal to 250 ppm by mass.

Abstract: There is provided an image recording method including modifying a surface to set a wetting tension index of a recording surface to 40 mN/m or more by carrying out a surface modification of the recording surface of an ink low-absorbing or non-absorbing recording medium, adhering a reaction liquid containing a flocculant to the recording surface after the modifying of the surface, and recording an image on the recording surface using an ink composition for ink jet recording containing a color material and water after the adhering of the reaction liquid.

Abstract: An ink jet recording method includes forming an image on a print medium by discharging a specific ink; and transporting the print medium, wherein the forming and the transporting are alternatively performed for printing; in the forming an image, while a print head is moved relative to the print medium that stops in the printing area, scanning for discharging the ink from the print head to the print medium is performed a plurality of times, and the specific ink discharged to the print medium is fixed to the print medium by being supplied with energy; the print medium is a non-ink-absorptive or low-ink-absorptive print medium; and the specific ink contains 60% by mass or more of one or more kinds of organic solvent that have a boiling point of 120° C. to 240° C. and are selected from a group consisting of glycol ether-based solvents and non-protonic polar solvents in the ink.

Abstract: Disclosed herein is a recording method, including: sequentially attaching a first reaction liquid, a first ink containing a color material, a second reaction liquid, and a second ink containing a color material to a non-absorptive recording medium or a low-absorptive recording medium in a superimposed manner, wherein the first reaction liquid contains a coagulant for coagulating or thickening a component of the first ink, and wherein the second reaction liquid contains a coagulant for coagulating or thickening a component of the second ink.

Abstract: There is provided an image recording method including modifying a surface to set a wetting tension index of a recording surface to 40 mN/m or more by carrying out a surface modification of the recording surface of an ink low-absorbing or non-absorbing recording medium, adhering a reaction liquid containing a flocculant to the recording surface after the modifying of the surface, and recording an image on the recording surface using an ink composition for ink jet recording containing a color material and water after the adhering of the reaction liquid.

Abstract: A recording method includes first coating a treatment liquid A to a recording medium, a second coating a treatment liquid B to the recording medium after the first coating, and a discharging an ink composition including a coloring material to the recording medium by discharging from a nozzle after the second coating, and the treatment liquid A adjusts wettability of the treatment liquid B to the recording medium and includes at least any one of a resin and inorganic oxide fine particles, and the treatment liquid B thickens or insolubilizes the ink composition and includes at least any one of a polyvalent metal salt, an organic acid, and an organic acid salt.

Abstract: A communication control method executed in a multi-hop cellular network including at least one gateway and a plurality of radio base stations includes: a first radio base station performing radio resource management and movement management concerning a radio mobile station requesting, when the first radio base station determines it is necessary to switch a connection destination of the radio mobile station, a second radio base station at a handover destination to perform handover processing and instructing the radio mobile station (a handover execution mobile station) to perform handover to the second radio base station; and the second radio base station determining, based on the number of times of transfer until a signal transmitted from the first radio base station reaches the own station, whether to change the radio base station that performs the radio resource management and the movement management concerning the handover execution mobile station.