Abstract: A printing apparatus that performs printing through an inkjet method includes an inkjet head and an ink supply system, where the ink supply system includes a pressure damper that is a pressure adjustment mechanism, a flow path that is a container-side flow path, and a connecting member in which a flow path that is a head-side flow path for flowing ink from the pressure damper to the inkjet head is formed, the pressure damper supplies ink adjusted to a pressure in a predetermined range lower than atmospheric pressure from an output port that is a pressure adjustment mechanism outlet to the flow path, and a flow path cross-sectional area of at least one part of the flow path in the connecting member is larger than a flow path cross-sectional area of the output port.

Abstract: [Task] To provide an inorganic pigment printing method capable of performing printing on a medium with an inorganic pigment, without performing a pretreatment process of adhering a pretreatment agent for preventing bleeding to the medium. [Solution] An inorganic pigment printing method of performing printing on a medium with an inorganic pigment is characterized by including: a resin fixing process (S61) of fixing an ultraviolet curing resin curable by being irradiated with ultraviolet light, to the medium, by performing printing on the medium by a UV inkjet printer configured to eject the ultraviolet curing resin and radiate ultraviolet light onto the ejected ultraviolet curing resin; and a pigment fixing process (S63) of fixing the inorganic pigment to the medium while removing the ultraviolet curing resin by burning in a state where the inorganic pigment has been fixed to the ultraviolet curing resin fixed to the medium by the resin fixing process.

Abstract: Problems such as blocking are suppressed and more appropriately perform printing, in a case of using a configuration in which each medium is wound after printing. A printing device for performing printing on a medium includes a printing head configured to form an overcoat layer on the medium, an after-heater configured to heat the medium having the overcoat layer formed thereon, and a winding roller which is a medium winding unit configured to wind the medium heated by the after-heater, and the after-heater heats the medium such that the temperature of the overcoat layer becomes a temperature equal to or higher than a glass-transition point, and the winding roller winds the medium having a state where the temperature of the overcoat layer is a temperature lower than the glass-transition point.

Abstract: This disclosure is directed to more effectively prevent blocking. An inkjet printing apparatus 100 has a platen 3, an after-heater 4, a take-up gear 5, and a cooler. The platen 3 heats a medium 20 to a temperature lower than or equal to a glass-transition temperature Tg1 of a resin included in the medium 20. The after-heater 4 heats the medium 20 to a temperature higher than or equal to a glass-transition temperature Tg2 of a resin contained in the ink. The take-up gear 5 collects the printed medium 20. The medium 20 or the take-up gear 5 is cooled by the cooler so as to reach a temperature lower than both the temperature Tg1 and the temperature Tg2.

Abstract: To more appropriately carry out printing at high precision even when a gap distance is large. A printing apparatus includes an inkjet head, a main scan driver, and a controller, where the controller sets a moving speed of the inkjet head according to a gap distance, and sets the moving speed in a main scanning operation so that an entering angle at a time of landing of the ink droplet on a medium becomes smaller than or equal to 45 degrees with respect to at least a position where the gap distance becomes the largest in a region of the medium to become a target of the main scanning operation.

Abstract: To more appropriately carry out printing at high precision even when a gap distance is large. A printing apparatus includes an inkjet head, a main scan driver, and a controller, where the controller sets a moving speed of the inkjet head according to a gap distance, and sets the moving speed in a main scanning operation so that an entering angle at a time of landing of the ink droplet on a medium becomes smaller than or equal to 45 degrees with respect to at least a position where the gap distance becomes the largest in a region of the medium to become a target of the main scanning operation.

Abstract: To more appropriately carry out printing at high precision even when a gap distance is large. A printing apparatus includes an inkjet head, a main scan driver, and a controller, where the controller sets a moving speed of the inkjet head according to a gap distance, and sets the moving speed in a main scanning operation so that an entering angle at a time of landing of the ink droplet on a medium becomes smaller than or equal to 45 degrees with respect to at least a position where the gap distance becomes the largest in a region of the medium to become a target of the main scanning operation.

Abstract: A printing device and a printing method, which are by ink-jet technique an overcoat layer using an ink consisting of more suitable ingredients, are provided. The printing device is for performing printing by ink-jet technique, including: a color ink head being an inkjet head that forms a color ink layer on a medium using a color ink; an overcoat head being an inkjet head that forms an overcoat layer that covers the color ink layer; and a curing agent head being an inkjet head that discharges ink droplets of a curing agent, the curing agent being a liquid for curing an ink in the overcoat layer. The overcoat head discharges ink droplets of an ink prepared by dispersing in an organic solvent a curable material that is cured in reaction to the curing agent.

Abstract: Problems such as blocking are suppressed and more appropriately perform printing, in a case of using a configuration in which each medium is wound after printing. A printing device for performing printing on a medium includes a printing head configured to form an overcoat layer on the medium, an after-heater configured to heat the medium having the overcoat layer formed thereon, and a winding roller which is a medium winding unit configured to wind the medium heated by the after-heater, and the after-heater heats the medium such that the temperature of the overcoat layer becomes a temperature equal to or higher than a glass-transition point, and the winding roller winds the medium having a state where the temperature of the overcoat layer is a temperature lower than the glass-transition point.

Abstract: To more appropriately carry out printing at high precision even when a gap distance is large. A printing apparatus includes an inkjet head, a main scan driver, and a controller, where the controller sets a moving speed of the inkjet head according to a gap distance, and sets the moving speed in a main scanning operation so that an entering angle at a time of landing of the ink droplet on a medium becomes smaller than or equal to 45 degrees with respect to at least a position where the gap distance becomes the largest in a region of the medium to become a target of the main scanning operation.

Abstract: This disclosure is directed to more effectively prevent blocking. An inkjet printing apparatus 100 has a platen 3, an after-heater 4, a take-up gear 5, and a cooler. The platen 3 heats a medium 20 to a temperature lower than or equal to a glass-transition temperature Tg1 of a resin included in the medium 20. The after-heater 4 heats the medium 20 to a temperature higher than or equal to a glass-transition temperature Tg2 of a resin contained in the ink. The take-up gear 5 collects the printed medium 20. The medium 20 or the take-up gear 5 is cooled by the cooler so as to reach a temperature lower than both the temperature Tg1 and the temperature Tg2.

Abstract: A printing device and a printing method, which are by ink-jet technique an overcoat layer using an ink consisting of more suitable ingredients, are provided. The printing device is for performing printing by ink-jet technique, including: a color ink head being an inkjet head that forms a color ink layer on a medium using a color ink; an overcoat head being an inkjet head that forms an overcoat layer that covers the color ink layer; and a curing agent head being an inkjet head that discharges ink droplets of a curing agent, the curing agent being a liquid for curing an ink in the overcoat layer. The overcoat head discharges ink droplets of an ink prepared by dispersing in an organic solvent a curable material that is cured in reaction to the curing agent.

Abstract: An ink composition for ink jet printing disclosed herein contains hollow particles each including a resin layer having a space inside thereof, a photocurable compound curable by irradiating light, and a solvent added in a quantity which lowers a mixture of the hollow particles and the photocurable compound in viscosity.

Abstract: A printing device and method for performing high image quality printing on a three-dimensional object at low cost is provided. The method includes a discharging step that discharges ink onto a recording medium 2 from a print head 1, wherein a blocking wall 3 is provided so as to sandwich a printing region that is a target towards which the ink is discharged along a moving direction of the print head 1 by two surfaces extending along a flight path of ink directed toward the recording medium 2 from the print head 1.

Abstract: Provided is a manufacturing method for a printed matter that can fully take advantage of the useful features of latex inks even with recording media having irregular surfaces. A manufacturing method for a printed matter according to the present disclosure may advantageously produce a printed matter by performing an undercoat layer forming step of applying an undercoat ink on a recording medium to form an undercoat layer; and a latex ink applying step, subsequent to the undercoat layer forming step, of applying a latex ink containing a resin dispersed in a solvent on the undercoat layer.

Abstract: The disclosure provides a novel inkjet printing device advantageously equipped to prevent the occurrence of blocking. The inkjet printing device includes: an inkjet head for discharging an ink on a medium to carry out printing; a transferring roller for moving the medium and the inkjet head relative to each other; and a powdering applying unit for applying a powder on the medium, wherein the powdering applying unit is located on a downstream side relative to the inkjet head in a transferring direction by the transferring roller.

Abstract: The disclosure provides a novel inkjet printing device advantageously equipped to prevent the occurrence of blocking. The inkjet printing device includes: an inkjet head for discharging an ink on a medium to carry out printing; a transferring roller for moving the medium and the inkjet head relative to each other; and a powdering applying unit for applying a powder on the medium, wherein the powdering applying unit is located on a downstream side relative to the inkjet head in a transferring direction by the transferring roller.

Abstract: A printing device and method for performing high image quality printing on a three-dimensional object at low cost is provided. The method includes a discharging step that discharges ink onto a recording medium 2 from a print head 1, wherein a blocking wall 3 is provided so as to sandwich a printing region that is a target towards which the ink is discharged along a moving direction of the print head 1 by two surfaces extending along a flight path of ink directed toward the recording medium 2 from the print head 1.

Abstract: An ultraviolet irradiation unit (100) is provided with an ultraviolet irradiation device (50) and an ink mist sucking and removing device (60). The ink mist sucking and removing device (60) includes a blower fan (62), an air filter (63) and a device cover (61) for forming an air flow passage whose one end is provided with a suction port (64) located in an upper vicinity of a printing object (80) and whose another end is provided with a ventilation port (58a) facing an LED drive circuit board (55). Air in the upper vicinity of a printing object (80) is sucked through the suction port (64) by the blower fan (62), ink mist included in the air is removed by the air filter (63), and cleaned air discharged through the ventilation port (58a) is blown to an LED circuit board (51), an LED drive circuit board (55).

Abstract: To reduce unevenness in print density. A three-dimensional inkjet printer has a medium holding portion 40 which holds a medium M on which a vibration generator 50 which applies vibrations to the medium holding portion 40 is mounted. Then, vibrations are generated from the vibration generator 50 when ink droplets are ejected from an inkjet head 20 by relatively moving the medium holding portion 40 and inkjet head 20 while rotating the medium holding portion 40. Because of this, the medium M held by the medium holding portion 40 vibrates, and the landing positions of ink droplets ejected from the inkjet head 20 deviate non-uniformly overall. Because of this, the deviation of dot positions becomes visually inconspicuous, and unevenness in print density decreases.