Abstract: Provided is an ink composition that includes a color material, water, an organic solvent, and polymer particles, the organic solvent including an organic solvent with a standard boiling point of equal to or greater than 150° C. and equal to or less than 250° C., the content of the organic solvent that is an alkyl polyol with a standard boiling point of equal to or greater than 280° C. being equal to or less than 2.0% by mass with respect to a total amount of the ink composition, the polymer particles having a core-shell structure including core polymer and shell polymer, and a glass transition temperature of the shell polymer being higher than that of the core polymer, and that is used for a recording method using the ink composition and an aggregating liquid containing an aggregating agent capable of aggregating components of the ink composition and increasing viscosity of the components.

Abstract: A water-based inkjet ink composition comprising composite resin fine particles composed of a first resin and a second resin, and having an SP value of from 9.0 to 12.0 (cal/cm3)1/2, wherein the SP value of the second resin is higher than the SP value of the first resin, and the first resin has a higher mass than the second resin.

Abstract: Provided is an ink jet recording method including heating a recording medium, attaching an aqueous ink composition to the recording medium heated in the heating by ejecting the aqueous ink composition through a nozzle, the aqueous ink composition containing water, a solvent, and resin particles, and blowing wind to a surface of the recording medium in the attaching. The resin particles include particular resin particles that are dispersed in water after leaving a mixture liquid of the particular resin particles to stand for 2 hours at 40° C. and are not dispersed in water after leaving the mixture liquid to stand for 1 hour at 80° C., the mixture liquid containing a composition of the solvent contained in the aqueous ink composition and the particular resin particles as a solid resin component in a mass ratio of 1:1.

Abstract: An ink jet recording method includes attaching an ink composition, with which a pressure chamber of an ink jet head is filled, to a recording medium by discharging the ink composition via a nozzle port, in which the ink jet head includes a step between the pressure chamber and the nozzle port, the ink composition contains water, a resin, and an organic solvent including at least a nitrogen-containing solvent, and the organic solvent includes an organic solvent, in which a difference in a SP value between the organic solvent and the resin is within 5, in a range of 0.1 part by mass to 0.4 parts by mass with respect to 1 part by mass of water, and does not include an organic solvent which has a standard boiling point of equal to higher than 280° C. and the content of more than 5% by mass in the ink composition.

Abstract: An ink jet recording method includes heating a recording medium, and attaching an aqueous ink composition to the heated recording medium by ejecting the aqueous ink composition through a nozzle. The aqueous ink composition contains water, a solvent, and resin particles. In the attaching step, a temperature difference between a temperature of the nozzle and a surface temperature of the heated recording medium is ?4 to 8° C. The resin particles include particular resin particles formed from a resin whose decrease rate of absorbance of light having a wavelength of 400 nm is 15% or smaller in 1 hour at 40° C. and 10% or larger in 1 hour at 80° C. in a liquid mixture containing the solvent contained in the aqueous ink composition and the particular resin particles such that a resin solid component of the liquid mixture is 0.5% by mass.

Abstract: An ink jet recording method includes attaching an ink composition, with which a pressure chamber of an ink jet head is filled, to a recording medium by discharging the ink composition via a nozzle port, in which the ink jet head includes a step between the pressure chamber and the nozzle port, the ink composition contains water, a resin, and an organic solvent including at least a nitrogen-containing solvent, and the organic solvent includes an organic solvent, in which a difference in a SP value between the organic solvent and the resin is within 5, in a range of 0.1 part by mass to 0.4 parts by mass with respect to 1 part by mass of water, and does not include an organic solvent which has a standard boiling point of equal to higher than 280° C. and the content of more than 5% by mass in the ink composition.

Abstract: An ink jet recording method includes applying a reaction solution containing a coagulant for coagulating components of an ink composition onto a recording medium and applying an ink composition onto the recording medium by discharging the ink composition from an ink jet head. The ink composition is an aqueous ink jet composition which contains a first wax having a melting point of 100° C. or higher, a second wax having a melting point of 70° C. or lower, and water.

Abstract: A method for driving a liquid ejecting apparatus is provided. The apparatus includes a liquid ejecting head having nozzles in a nozzle surface and being configured to eject a liquid from the nozzles, a wiper being used for wiping the nozzle surface, and a maintenance liquid supply mechanism being configured to supply a maintenance liquid with which it is possible to suppress deterioration of recovery performance of, among the nozzles, a defective nozzle from which the liquid is not ejected properly. The method includes: a first liquid ejection of performing liquid ejecting operation to eject the liquid from the nozzles toward a medium; a wiping of performing wiping operation to wipe the nozzle surface by means of the wiper, with the liquid ejecting operation suspended, and put the maintenance liquid into the nozzles; and a second liquid ejection of resuming the liquid ejecting operation after the wiping.

Abstract: An ink jet recording method according to the present embodiment includes ejecting a water-based ink composition where a content of an organic solvent having a standard boiling point of 280° C. or more is 0.5% by mass or less from a head nozzle and attaching the water-based ink composition to a recording medium, in which a contact angle between at least a part of the surface of the member in contact with the water-based ink composition in the members in the head and the water-based ink composition is 30° or less, and the surface of the member in contact with the water-based ink composition is formed of a material having an SP value of 9 or less.

Abstract: An aqueous ink composition contains an organic solvent, a surfactant, and resin fine particles. The resin of the resin fine particles takes 500 minutes or more to melt at 40° C. with the surfactant.

Abstract: Provided is an ink composition that includes a color material, water, an organic solvent, and polymer particles, the organic solvent including an organic solvent with a standard boiling point of equal to or greater than 150° C. and equal to or less than 250° C., the content of the organic solvent that is an alkyl polyol with a standard boiling point of equal to or greater than 280° C. being equal to or less than 2.0% by mass with respect to a total amount of the ink composition, the polymer particles having a core-shell structure including core polymer and shell polymer, and a glass transition temperature of the shell polymer being higher than that of the core polymer, and that is used for a recording method using the ink composition and an aggregating liquid containing an aggregating agent capable of aggregating components of the ink composition and increasing viscosity of the components.

Abstract: A recording method includes discharging an ink composition containing a resin onto a recording medium having a surface temperature Tm of 40° C. or more. The recording medium includes an ink receiving layer containing a resin having a glass transition temperature Tg2 of 15 to 55° C.

Abstract: Provided is an ink jet recording medium which is capable of reproducing a wide range of gloss including high luster like metallic luster and substantially no luster due to matting by varying only the amount of applied ink and in which the consumption of a white ink used to adjust the glossiness thereof is small.

Abstract: An inkjet recording sheet for forming an image using aqueous pigment ink that includes a substrate and an ink-receiving layer formed on the substrate. The ink-receiving layer is obtained by applying, on the substrate, a coating composition containing: a cationic acrylic silicone emulsion-based resin having a hydrolyzable silyl group as a crosslinking component; a cationic polyether-based urethane resin; and a carbodiimide group-containing resin, followed by curing the applied coating composition. In the coating composition, the content of the cationic acrylic silicone emulsion-based resin is 2 to 7% by mass, the content of the cationic polyether-based urethane resin is 88 to 94% by mass, and the content of the carbodiimide group-containing resin is 2 to 6% by mass in terms of solid matter.

Abstract: Provided is an ink jet recording medium which is capable of reproducing a wide range of gloss including high luster like metallic luster and substantially no luster due to matting by varying only the amount of applied ink and in which the consumption of a white ink used to adjust the glossiness thereof is small.

Abstract: The present invention relates to a recording medium containing: a transparent sheet containing a substrate and an ink-receiving layer formed thereon; and a release film that is attached to a substrate-side surface of the transparent sheet and is to be stripped of after image recording, in which the release film contains: a release film main body; and an adhesive layer that is disposed facing the substrate-side surface of the transparent sheet and is to be removed together with the release film main body when the release film is stripped off after image recording, and the adhesive layer defines an adhesive-free non-attachment region which is continuously present along a recording medium-conveying direction during image recording.

Abstract: The present invention relates to an inkjet recording sheet for forming an image using aqueous pigment ink comprising: a substrate; and an ink-receiving layer formed on the substrate, wherein the ink-receiving layer is obtained by applying, on the substrate, a coating composition containing: a cationic acrylic silicone emulsion-based resin having a hydrolyzable silyl group as a crosslinking component; a cationic polyether-based urethane resin; and a carbodiimide group-containing resin, followed by curing the applied coating composition, and wherein, in the coating composition, the content of the cationic acrylic silicone emulsion-based resin is 2 to 7% by mass, the content of the cationic polyether-based urethane resin is 88 to 94% by mass, and the content of the carbodiimide group-containing resin is 2 to 6% by mass in terms of solid matter.

Abstract: A peelable laminate assembly includes at least two peelable laminates each including a first sheet and a second sheet bonded to one surface of the first sheet, the second sheet being peelable from the first sheet, and further includes a joint sheet for connecting the two adjacent peelable laminates, the joint sheet being bonded to one surface of each second sheet facing away from the corresponding first sheet.