Abstract: Provided is an ink including water, an organic solvent, resin particles, and a thickener. The thickener comprises polymer particles having a carboxylic acid structure. A proportion of the thickener in the ink is 0.05% by mass or more. Change in viscosity of the ink between before and after storage of the ink at 70° C. for 1 week is 20% or less. The change in viscosity is expressed by Formula (1): Change in viscosity (%)=[(a?b)/b]×100 . . . Formula (1), where a represents a viscosity (mPa·s) at 25° C. of the ink when the ink is prepared, and b represents a viscosity (mPa·s) at 25° C. of the ink after the ink is stored at 70° C. for 1 week.

Abstract: Provided is an ink including water, an organic solvent, resin particles, a first inorganic pigment, and a second inorganic pigment. The first inorganic pigment comprises particulate titanium oxide. The second inorganic pigment comprises at least one selected from the group consisting of acicular titanium oxide, fusiform titanium oxide, and silica particles.

Abstract: Printed matter includes a substrate comprising a vinyl chloride resin and a printing layer on the substrate, wherein the surface of the substrate has a static friction coefficient of from 0.04 to 0.06 and a dynamic friction coefficient of from 0.02 to 0.03 when the surface of the substrate is rubbed with standard adjacent fabrics for staining for color fastness test under a load of 200 g, wherein the surface of the printing layer has a static friction coefficient of from 0.35 to 0.50 and a dynamic friction coefficient of from 0.20 to 0.30 when the surface of the printing layer is rubbed with standard adjacent fabrics for staining for color fastness test under a load of 200 g.

Abstract: An inkjet printing device including: an ink storage unit configured to store an ink; an ejection head having a nozzle configured to eject the ink to a printing material; a heating unit configured to heat the printing material; and a washing unit configured to wash a nozzle-formed surface of the head with a washing liquid, wherein the ink is a clear ink including a resin, the device has a low gloss printing mode that is a printing mode for applying low gloss and a high gloss printing mode that is a printing mode for applying high gloss, and the inkjet printing device satisfies: Tmatte>Tgloss where Tmatte (degrees Celsius) is a temperature of the heating unit when printing is performed with the low gloss printing mode, and Tgloss (degrees Celsius) is a temperature of the heating unit when printing is performed with the high gloss printing mode.

Abstract: Provided is an inkjet printing device including an ink storage unit configured to store an ink, an ejection head configured to eject the ink to form a print layer, and a heating unit configured to heat a material to be printed, wherein the ink is an aqueous clear ink including a resin and water, the inkjet printing device has a low gloss printing mode that is a printing mode for imparting low gloss, and a high gloss printing mode that is a printing mode for imparting high gloss, and the heating unit is configured to heat to satisfy the following formula Tmatte>Tgloss, where Tmatte (degrees Celsius) is a temperature of a low gloss printing region of the material to be printed where the low gloss printing region is printed with the low gloss printing mode when the aqueous clear ink is deposited on the material to be printed, and Tgloss (degrees Celsius) is a temperature of a high gloss printing region of the material to be printed where the high gloss printing region is printed with the high gloss printing m

Abstract: An inkjet printing device includes an ink containing unit to contain a clear aqueous ink containing a resin, a compound represented by the following Chemical formula, and water, where R1 represents an alkyl group having 1 to 4 carbon atoms, a discharging head to discharge the clear aqueous ink to printed matter to form a layer thereon in a low gloss printing mode or high gloss printing mode, and a heating device to heat the printed matter, wherein the heating device heats the printed matter satisfying the following relationship 1: Tlgloss>Thgloss 1, where Tlgloss represents the temperature of the printed matter at a low gloss printing region in the low gloss printing mode and Thgloss represents the temperature of the printed matter in the high gloss printing mode when the clear aqueous ink is attached to the printed matter.

Abstract: Printed matter includes a substrate comprising a vinyl chloride resin and a printing layer on the substrate, wherein the surface of the substrate has a static friction coefficient of from 0.04 to 0.06 and a dynamic friction coefficient of from 0.02 to 0.03 when the surface of the substrate is rubbed with standard adjacent fabrics for staining for color fastness test under a load of 200 g, wherein the surface of the printing layer has a static friction coefficient of from 0.35 to 0.50 and a dynamic friction coefficient of from 0.20 to 0.30 when the surface of the printing layer is rubbed with standard adjacent fabrics for staining for color fastness test under a load of 200 g.

Abstract: A processing liquid contains a nonionic resin, a resin particle having a carboxylic acid group, a flocculant, an organic solvent, and water.

Abstract: Provided is an ink including water, an organic solvent, resin particles, and a thickener. The thickener comprises polymer particles having a carboxylic acid structure. A proportion of the thickener in the ink is 0.05% by mass or more. Change in viscosity of the ink between before and after storage of the ink at 70° C. for 1 week is 20% or less. The change in viscosity is expressed by Formula (1): Change in viscosity (%)=[(a?b)/b]×100 . . . Formula (1), where a represents a viscosity (mPa·s) at 25° C. of the ink when the ink is prepared, and b represents a viscosity (mPa·s) at 25° C. of the ink after the ink is stored at 70° C. for 1 week.

Abstract: An inkjet printing device including: an ink storage unit configured to store an ink; an ejection head having a nozzle configured to eject the ink to a printing material; a heating unit configured to heat the printing material; and a washing unit configured to wash a nozzle-formed surface of the head with a washing liquid, wherein the ink is a clear ink including a resin, the device has a low gloss printing mode that is a printing mode for applying low gloss and a high gloss printing mode that is a printing mode for applying high gloss, and the inkjet printing device satisfies: Tmatte>Tgloss where Tmatte (degrees Celsius) is a temperature of the heating unit when printing is performed with the low gloss printing mode, and Tgloss (degrees Celsius) is a temperature of the heating unit when printing is performed with the high gloss printing mode.

Abstract: Provided is an ink including water, an organic solvent, resin particles, a first inorganic pigment, and a second inorganic pigment. The first inorganic pigment comprises particulate titanium oxide. The second inorganic pigment comprises at least one selected from the group consisting of acicular titanium oxide, fusiform titanium oxide, and silica particles.

Abstract: Provided is an inkjet printing device including an ink storage unit configured to store an ink, an ejection head configured to eject the ink to form a print layer, and a heating unit configured to heat a material to be printed, wherein the ink is an aqueous clear ink including a resin and water, the inkjet printing device has a low gloss printing mode that is a printing mode for imparting low gloss, and a high gloss printing mode that is a printing mode for imparting high gloss, and the heating unit is configured to heat to satisfy the following formula Tmatte>Tgloss, where Tmatte (degrees Celsius) is a temperature of a low gloss printing region of the material to be printed where the low gloss printing region is printed with the low gloss printing mode when the aqueous clear ink is deposited on the material to be printed, and Tgloss (degrees Celsius) is a temperature of a high gloss printing region of the material to be printed where the high gloss printing region is printed with the high gloss printing m

Abstract: An ink-jet printer is provided. The ink-jet printer includes: an ink container containing an ink, where the ink being a clear ink containing a resin; a discharge head having a nozzle configured to discharge the ink to a printing material; a heater configured to heat the printing material; and a cleaner including a wiper configured to wipe a nozzle formation surface of the discharge head. The ink-jet printer has a matte gloss printing mode imparting a matte gloss and a glossy gloss printing mode imparting a glossy gloss, and the ink-jet printer satisfies a formula below: Tmatte>Tgloss where Tmatte represents a temperature (° C.) of the heater during printing in the matte gloss printing mode; and Tgloss represents the temperature (° C.) of the heater during printing in the glossy gloss printing mode.

Abstract: A printing device includes an ink container, an ink in the ink container, the ink containing an aqueous clear ink and an aqueous color ink and a heating device configured to heat a substrate, wherein the relationship is satisfied, |SCL?SC|?5 mN/m, where SCL represents the surface tension of the aqueous clear ink and SC represents the surface tension of the aqueous color ink, wherein the printing device has a low gloss printing and a high gloss printing mode, wherein the heating device heats the substrate while satisfying the relationship: Tlow>Thigh, where Tlow represents the temperature of the substrate in a low gloss printing region in which the aqueous clear ink is printed in the low printing mode and Thigh represents the temperature of the substrate in a high gloss printing region in which the aqueous clear ink is printed in the high printing mode.

Abstract: An image forming method is provided. The image forming method includes the process of discharging an ink onto a recording medium. The ink comprises a cross-linking agent reactive with an acidic group and a resin having the acidic group reactive with the cross-linking agent. The recording medium has the acidic group reactive with the cross-linking agent on a surface thereof.

Abstract: An inkjet printing device includes an ink containing unit to contain a clear aqueous ink containing a resin, a compound represented by the following Chemical formula, and water, where R1 represents an alkyl group having 1 to 4 carbon atoms, a discharging head to discharge the clear aqueous ink to printed matter to form a layer thereon in a low gloss printing mode or high gloss printing mode, and a heating device to heat the printed matter, wherein the heating device heats the printed matter satisfying the following relationship 1: Tlgloss>Thgloss 1, where Tlgloss represents the temperature of the printed matter at a low gloss printing region in the low gloss printing mode and Thgloss represents the temperature of the printed matter in the high gloss printing mode when the clear aqueous ink is attached to the printed matter.

Abstract: An inkjet printing device includes an ink container accommodating a non-aqueous clear ink containing a resin and an organic solvent, a discharging head to discharge the non-aqueous clear ink directly or indirectly onto a substrate to form printed matter; and a heating device to heat the substrate, wherein the following relationship is satisfied: Tlow (° C.)>Thigh (° C.), where Tlow represents the temperature of the substrate that the heating device is heating during printing in a low gloss printing mode in which the non-aqueous clear ink is directly or indirectly discharged and attached to the substrate to impart low gloss to the printed matter and Thigh represents the temperature of the substrate that the heating device is heating during printing in a high gloss printing mode in which the non-aqueous clear ink is directly or indirectly discharged and attached to the substrate to impart high gloss to the printed matter.

Abstract: A printing device includes an ink container accommodating a liquid containing a clear ink containing water and a resin, a discharging head to discharge the clear ink directly or indirectly onto a substrate to form a printing layer, and a heating device to heat the substrate, wherein the following relationship is satisfied: Tlow (degrees C.)>Thigh (degrees C.), where Tlow (degrees C.) represents the temperature of the substrate that the heating device is heating during printing in a low gloss printing mode and Thigh (degrees C.) represents the temperature of the substrate that the heating device is heating during printing in a high gloss printing mode, wherein the following relationships are satisfied: in the high gloss printing mode, Gp?Gm and, in the low gloss printing mode, Gm?Gp, where Gm represents the gloss level of the substrate and Gp represents the gloss level of the printing layer.

Abstract: A printing device includes an ink container, an ink in the ink container, the ink containing an aqueous clear ink and an aqueous color ink and a heating device configured to heat a substrate, wherein the relationship is satisfied, |SCL?SC?5 mN/m, where SCL represents the surface tension of the aqueous clear ink and SC represents the surface tension of the aqueous color ink, wherein the printing device has a low gloss printing and a high gloss printing mode, wherein the heating device heats the substrate while satisfying the relationship: Tlow>Thigh, where Tlow represents the temperature of the substrate in a low gloss printing region in which the aqueous clear ink is printed in the low printing mode and Thigh represents the temperature of the substrate in a high gloss printing region in which the aqueous clear ink is printed in the high printing mode.

Abstract: An ink-jet printer is provided. The ink-jet printer includes: an ink container containing an ink, where the ink being a clear ink containing a resin; a discharge head having a nozzle configured to discharge the ink to a printing material; a heater configured to heat the printing material; and a cleaner including a wiper configured to wipe a nozzle formation surface of the discharge head. The ink-jet printer has a matte gloss printing mode imparting a matte gloss and a glossy gloss printing mode imparting a glossy gloss, and the ink-jet printer satisfies a formula below: Tmatte>Tgloss where Tmatte represents a temperature (° C.) of the heater during printing in the matte gloss printing mode; and Tgloss represents the temperature (° C.) of the heater during printing in the glossy gloss printing mode.