Abstract: A droplet ejection apparatus includes a common flow path; droplet ejection units each respectively including a first distribution port; first flow paths that respectively connect each first distribution port to the common flow path; first open/close mechanisms provided respectively at the first flow paths; a first pressurizing unit that applies a positive pressure to the common flow path; a second open/close mechanisms provided at the common flow path at the first pressurizing unit side of connection portions that connect the common flow path and the respective first flow paths; and a controller. When the second open/close mechanism is closed, the controller opens only one or more first open/close mechanisms corresponding to one or more target droplet ejection units, applies positive pressure to a section of the common flow path at the first pressurizing unit side of the second open/close mechanism, and then opens the second open/close mechanism.

Abstract: The image forming method includes the steps of: depositing a first liquid containing at least a dispersion inhibitor, a polymerization initiator, and a high-boiling-point organic solvent, onto an image forming region of a recording medium where an image is to be formed according to image data, and onto a peripheral region of the image forming region; ejecting a second liquid containing at least a radiation-curable polymer compound and a coloring material, onto the recording medium according to the image data after the first liquid is deposited onto the image forming region and the peripheral region of the image forming region; ejecting a third liquid containing at least a radiation-curable polymer compound, onto at least the peripheral region of the image forming region after the first liquid is deposited onto the image forming region and the peripheral region of the image forming region, the third liquid having a transparent color, the same color as the recording medium, or a similar color to the recording m

Abstract: The image forming apparatus includes: a first liquid ejection device which, while scanning to and fro in a direction substantially orthogonal to a conveyance direction of a recording medium, ejects a first liquid containing a coloring material onto the recording medium; second liquid ejection devices which are disposed respectively on both regions in a scanning direction outside the first liquid ejection device, the second liquid ejection devices ejecting a second liquid onto at least an area of the recording medium on which the first liquid is to be deposited prior to the first liquid being deposited while the second liquid ejection devices perform a scan together with the first liquid ejection device; and first radiation irradiating devices which are disposed respectively on both regions in the scanning direction outside the first liquid ejection device, the first radiation irradiating devices irradiating an area of the recording medium on which the first liquid and the second liquid have been deposited wit

Abstract: The present invention provides a liquid ejection apparatus capable of precisely controlling a flow rate of liquid in a flow-path. The liquid ejection apparatus is equipped with: an ejection head that is provided with a feed port and a discharge port, and that ejects fed liquid; a feed flow-path that feeds liquid to the feed port; a discharge flow-path that discharges liquid from the discharge port; at least one of the feed flow-path and/or the discharge flow-path equipped with a main pump that pumps a constant flow rate of liquid in the flow-path, a sub pump provided in parallel to the main pump and that pumps liquid in the flow-path, and a detector unit that detects liquid pressure in the flow-path; and a control unit that controls the flow rate of liquid pumped by the sub pump such that the pressure detected achieves a predetermined pressure.

Abstract: The image forming apparatus comprises: an ink ejection device which ejects a droplet of radiation-curable ink onto a recording medium; a solvent separating device which separates a coloring material component and a solvent component in the droplet of the radiation-curable ink on the recording medium; a solvent removing device which removes the solvent component separated by the solvent separating device; and a curing device which irradiates radiation onto the droplet of the radiation-curable ink after the solvent component is removed by the solvent removing device, in such a manner that the droplet of the radiation-curable ink is cured.

Abstract: The image forming apparatus attaches a plurality of liquids onto a recording medium so as to form a desired image, the image forming apparatus including: a first liquid attaching device that attaches onto the recording medium a first liquid which contains a high-boiling organic solvent, a polymerization initiator, and a diffusion preventing agent for preventing diffusion and smearing of a second liquid to be attached onto the recording medium after the first liquid is attached onto the recording medium; a second liquid attaching device that attaches the second liquid which contains a radiation-curable polymerizable compound, onto at least an area of the recording medium onto which the first liquid has been attached; a third liquid attaching device that attaches a third liquid which contains a polymerization initiator and a radiation-curable polymerizable compound, onto at least an area of the recording medium onto which the first liquid and the second liquid have been attached; and a first radiation irradiati

Abstract: An ink-jet recording ink set, containing at least one recording liquid containing a colorant and a polymerizable compound and an ink spread suppressing liquid containing at least one surfactant and substantially no colorant, wherein all of the following conditions (A), (B) and (C) are satisfied, and an ink-jet recording method using the same: (A) the surface tension of the ink spread suppressing liquid is smaller than that of at least one recording liquid contained in the ink-jet recording ink set; (B) at least one of the surfactants contained in the ink spread suppressing liquid satisfies the following relationship: ?s(0)??s(saturated)>1 mN/m; and (C) the surface tension of the ink spread suppressing liquid satisfies the following relationship: ?s<(?s(0)+?s(saturated)max)/2.

Abstract: An ink jet recording method for recording an image on a recording medium using a first liquid A containing a polymerizable or crosslinkable material, and a second liquid B having a different composition from the composition of the first liquid A, the method including: applying the second liquid B, in which a compound having a difference of an inorganicity/organicity ratio estimated from a structure of compound (I/O value) of 3 or less from the polymerizable or crosslinkable material is contained in a range of 50% by mass or more, onto the same area at which the image is to be formed by the first liquid A or a wider area than the area at which the image is to be formed by the first liquid A, of the recording medium which is impermeable or slowly-permeable; jetting the first liquid A onto the recording medium where the second liquid B has been applied so that at least a droplet a1 and a droplet a2 of the first liquid A have an overlap portion; and providing activation energy within 60 seconds of impact of each

Abstract: The image forming method includes: a treatment liquid deposition step of depositing, on a recording medium, a treatment liquid which reacts with a water-based emulsion-type ink having a water-based ink solvent, a pigment-based coloring material and at least one constituent material of a radiation-curable monomer, a radiation-curable oligomer, and a mixture material of the radiation-curable monomer and the radiation-curable oligomer; an ink ejection step of ejecting the water-based emulsion-type ink by means of an inkjet head toward the recording medium on which the treatment liquid has been deposited in the treatment liquid deposition step; a radiation irradiation step, in a state where the water-based emulsion-type ink has reacted with the treatment liquid on the recording medium after the ink ejection step and an aggregate of the pigment-based coloring material and the at least one constituent material is separated in phase from a liquid component including the water-based ink solvent, of irradiating radiat

Abstract: The present invention provides an inkjet-recording ink set including multiple kinds of liquid including at least first and second liquids, wherein the first liquid contains a metal compound dissolved therein, and at least one of the multiple kinds of liquid contains a polymerizable compound. The invention also provides an inkjet-recording ink including at least a high-boiling-point organic solvent and a metal compound.

Abstract: An ink jet recording method for recording an image on a recording medium using a first liquid A for forming the image containing a polymerizable or crosslinkable material, and a second liquid B having a different composition from the composition of the first liquid A, the method including: applying the second liquid B, having a solubility parameter value of 35 or less and a difference of the solubility parameter value of 10 or less from the solubility parameter value of the first liquid A, onto the same area at which the image is to be formed by the first liquid A or a wider area than the area at which the image is to be formed by the first liquid A, of the recording medium which is impermeable or slowly-permeable; and jetting the first liquid A onto the recording medium where the second liquid B has been applied so that at least a droplet a1 and a droplet a2 of the first liquid A have an overlap portion.

Abstract: The image forming apparatus comprises: an ejection head which ejects ink having electrorheological properties onto a recording medium; an electric field application device which applies an electric field to a droplet of the ink deposited on the recording medium; a fixing promotion device which performs fixing promotion process for promoting fixing of the ink on the recording medium; and a timing control device which controls a time difference between an electric field application cessation timing at which an application of the electric field to the ink on the recording medium by the electric field application device is ceased and a fixing promotion process timing at which the fixing promotion process is performed by the fixing promotion device.

Abstract: The image forming apparatus includes: a treatment liquid application device which applies treatment liquid onto a recording medium, the treatment liquid containing cationic polymer and a coloring material aggregating agent; an ink liquid ejection device which ejects droplets of ink liquid toward the recording medium, the ink liquid having anionic properties and containing a solvent and a coloring material which aggregates due to reaction with the coloring material aggregating agent; and a solvent absorbing device which absorbs the solvent on the recording medium in a state where an aggregate of the coloring material and the solvent are separated after a first reaction in which a film is formed at a liquid interface between the treatment and ink liquids on the recording medium by mixing treatment and ink liquids and a second reaction in which the aggregate of the coloring material in the ink liquid is formed after film formation.

Abstract: The image forming apparatus comprises: an ejection head which ejects droplets having electro rheological effects onto a recording medium; a holding device which holds the recording medium, the holding device being disposed at a position facing an ejection side surface of the ejection head, the recording medium interposing between the ejection head and the holding device; a pair of electrodes which is disposed on the holding device, the pair of electrodes comprising a first electrode and a second electrode; and a voltage application device which applies a voltage to the pair of electrodes.

Abstract: A liquid removal apparatus which removes liquid on a base material, has: an absorbing member which absorbs and removes the liquid on the base material by making contact with or by approaching to the liquid; an internal rotating body which is disposed inside a hollow portion of the absorbing member and has an opening section in an outer circumferential surface of the internal rotating body; a pressure reducing device which reduces pressure of the hollow portion of the absorbing member; an internal rotating body drive device which causes the internal rotating body to rotate relatively with respect to the absorbing member; a movement device which causes relative movement of the base material with respect to the absorbing member and the internal rotating body; and an internal rotating body drive control device which controls the internal rotating body drive device in such a manner that: number N1 of rotations per unit time of the absorbing member (where N1?0), number N2 of rotations per unit time of the internal

Abstract: The image forming apparatus includes: an ink discharge device having a plurality of full line type inkjet heads, each of the inkjet heads having a nozzle row; an ink supply device; a first curing device which irradiates ultraviolet light for causing the droplets of the ink to semi-cure to a degree whereby the droplets of the ink discharged from the inkjet head on the upstream side do not mix with the droplets of the ink discharged by a next one of the inkjet heads situated on a downstream side in the direction of relative conveyance, the first curing device including an ultraviolet light source including a group of light emitting elements arranged in a linear form and disposed between the inkjet heads of the respective colors; and a second curing device which irradiates ultraviolet light for performing main curing of the droplets of the ink.

Abstract: An ink set for ink jet recording, an ink for ink jet recording and an ink jet recording method capable of suppressing bleeding and the interference between discharged droplets to form high-quality images can be achieved by an ink set for ink jet recording, comprising a plurality of liquids containing at least a first liquid and a second liquid, wherein the first liquid comprises an oil-soluble polymer dissolved therein, and at least one of a plurality of the liquids contains a polymerizable compound, as well as by an ink jet image recording method which comprises using the ink set and applying the first and second liquids simultaneously onto a recording medium, or first applying one of the liquids and then the other onto a recording medium such that the two liquids contact each other to form an image.

Abstract: Disclosed are an ink jet recording ink set which is suppressed in bleeding and shot droplet interference and can form a high quality image and an ink jet image recording method. The ink jet recording ink set has plural liquids including at least a first liquid and a second liquid. The second liquid contains a polymerizable compound and the first liquid contains a high-boiling point organic solvent and the high-boiling organic solvent meets any one of the following requirements (A) to (C) and an ink jet image recording method includes supplying a first and a second liquid simultaneously or sequentially to a recording medium such that both liquids are in contact with each other, to form an image: (A) it has a viscosity of 100 mPa·s or less at 25° C. and a viscosity of 30 mPa·s or less at 60° C. and has a boiling point of 100° C.

Abstract: The image forming apparatus includes: an ejection head which ejects ink having electrorheological properties toward a recording medium; an electric field application device which applies an electric field to droplets of the ink deposited on a surface of the recording medium; an electric field intensity control device which controls intensity of the electric field in such a manner that the ink in the droplets has a prescribed viscosity; and a fixing promotion device which carries out processing for promoting fixing of the ink on the recording medium, in a state where the electric field is applied by the electric field application device.

Abstract: The liquid ejection apparatus includes an ejection head which ejects a droplet of electrorheological liquid toward an ejection receiving medium; an electric charge application device which applies electric charge onto a surface of the droplet deposited on a first surface of the ejection receiving medium substantially simultaneously as the droplet lands on the ejection receiving medium; and an electrode which has a surface facing the electric charge application device across the ejection receiving medium and contacting with a second surface of the ejection receiving medium opposite to the first surface thereof.