Abstract: An ink jet recording device comprises a main body equipped with an ink container, an ink supply pump ink, an ink recovery pump, and a control unit. A printing head equipped with a nozzle emits ink supplied from the main body as ink particles. An electrification electrode electrifies the ink particles and a deflection electrode deflects the electrified ink particles. A gutter collects ink particles which are not used for printing. An exhaust circulation path connects the ink container and the gutter. The gutter comprises two members of an ink flow path block in which ink flows and an exhaust flow path block in which exhaust solvent vapor flows.

Abstract: An ink composition is disclosed which includes a pigment, self-dispersing resin particles including a hydrophilic constituent unit and a hydrophobic constituent unit, at least two nonionic surfactants including (a) a nonionic surfactant having an HLB of from 15 to 19 and (b) a nonionic surfactant having an HLB of from 10 to less than 15, a water-soluble organic solvent, and water. An ink set and an image forming method are also disclosed.

Abstract: The invention provides an ink set having at least: an ink composition comprising a pigment; and a treatment liquid containing at leas an organic acidic compound and a polymer compound comprising a structural unit represented by the following Formula (A). In Formula (A), Ra1 represents a hydrogen atom or a methyl group; La1 represents a single bond, —COO— or —CONRa3—, in which Ra3 represents a hydrogen atom or a monovalent group having 1 to 30 carbon atoms which may contain at least one selected from the group consisting of an ether bond, a thioether bond, and an ester bond; La2 represents a single bond or a divalent linking group having 1 to 30 carbon atoms which may contain at least one selected from the group consisting of an ether bond, a thioether bond, and an ester bond; and Aa represents an ionic group.

Abstract: A droplet ejection device includes a first determining unit that determines a first amount of liquid on an image pixel basis based on both a second amount and an ejection pattern both obtained from image data, actuator that ejects the first amount of the liquid, a second determining unit that determines a third amount of treating agent on an image pixel basis based on a difference between the first and second amounts, such that a density of the liquid corresponding to a combination of the first amount of the liquid and the third amount of the treating agent comes closer to a density of the liquid corresponding to the second amount of the liquid when there is a difference between the first and second amounts, and a treating-agent application member that applies the third amount of the treating agent to a recording medium.

Abstract: An ink jet recording device comprises a main body equipped with an ink container, an ink supply pump ink, an ink recovery pump, and a control unit. A printing head equipped with a nozzle emits ink supplied from the main body as ink particles. An electrification electrode electrifies the ink particles and a deflection electrode deflects the electrified ink particles. A gutter collects ink particles which are not used for printing. An exhaust circulation path connects the ink container and the gutter. The gutter comprises two members of an ink flow path block in which ink flows and an exhaust flow path block in which exhaust solvent vapor flows.

Abstract: The present disclosure provides for a pre-treatment composition for inkjet printing, comprising: a liquid vehicle, a fixing agent, a non-ionic defoaming surfactant, a surface tension reducing surfactant, and a latex resin having an acid number of less than 20.

Abstract: An inkjet recording method is disclosed, in which the method includes: recording an image, on a recording medium, using two or more ink compositions each comprising at least a pigment, by applying the two or more ink compositions to an acidic surface of the recording medium at a dotting interval of 500 msec or less; wherein the recording includes forming at least a first color sub-image by applying at least one of the two or more ink compositions and the at least one of the two or more ink compositions includes a self-dispersing polymer having an acid value of from 70 to 120 mgKOH/g and a water-soluble organic solvent.

Abstract: The present invention provides a treatment liquid including: at least one acidic compound selected from an organic acidic compound or an inorganic acidic compound; and at least one compound selected from a nitrogen-containing heterocyclic compound or an organic mercapto compound; wherein the treatment liquid has a pH of from 0.5 to 2.0 at 25° C. and the ability to aggregate particles dispersed in an ink composition including at least one colorant and particles of at least one polymer.

Abstract: A pattern is formed by carrying out the steps of dropping curable ink linearly onto a substrate, curing the ink dropped onto the substrate, and depositing layers of ink by repeating a process of linearly dropping a predetermined amount of ink onto the cured ink and a process of curing the predetermined amount of ink. In the step of depositing layers of ink, the ink is dropped at dot pitch p that satisfies pmin?p when the ink is dropped at dot pitch p, and a minimum dot pitch for preventing the dropped ink from spreading beyond cured landing-position ink that is located at a landing position of the dropped ink is pmin.

Abstract: An ink jet recording device, comprises: a main body equipped with an ink container which accumulate ink, an ink supply pump which supplies the ink, an ink recovery pump which recovers the ink, and a control unit; a printing head equipped with a nozzle which jets the ink supplied from the main body as ink particles, an electrification electrode which electrifies the ink particles, a deflection electrode which deflects the electrified ink particles, and a gutter which collects ink particles which are not used for printing; and a cable in which an ink supply flow path for supplying the ink from the main body to the printing head, an ink recovery flow path for returning the ink particles collected by the gutter into the ink container, an exhaust circulation path which connects the ink container and the gutter, and various signal lines for connecting the control unit and the printing head, are arranged.

Abstract: A set of an ink containing a pigment dispersed by a water-soluble resin and having the surface tension of 38 mN/m or less and a reaction liquid containing a polyvalent metal ion and a surfactant, which is an ethylene oxide adduct of a higher alcohol of a linear primary or secondary alcohol or an isoalkyl alcohol, and has a HLB value of 13.0 or more as determined by the Griffin method. The content of the polyvalent metal ion in the reaction liquid is 10.0 times or more in terms of molar ratio as much as an amount of an acidic group derived from the water-soluble resin in the ink and the content of the surfactant in the reaction liquid is 0.15 times or more in terms of mass ratio as much as the total content of the pigment and water-soluble resin in the ink.

Abstract: A treatment solution for ink-jet recording includes a solvent which contains at least one of water and a water-soluble organic solvent; and an N-hydroxy cyclic imide compound which is soluble in the solvent.

Abstract: An inkjet ink including water, a pigment, a polymer, and a hydrazine compound. The polymer does not include an anionic unit and includes a first unit having a carbonyl group capable of reacting with a hydrazino group, and a second unit having at least one of an amino group, a dimethylamino group, and a diethylamino group. The content of the first unit is from 40% to 90% by weight based on the weight of the polymer, and the inkjet ink has a pH of not less than 9.

Abstract: A treatment-liquid application device includes a treatment-liquid container, a liquid supply unit, a liquid chamber unit, a treatment-liquid carrier, a transport unit, a treatment-liquid applicator, and a partition. The partition is disposed in an area of the chamber unit defined by an imaginary entry plane, an imaginary exit plane, a carrying surface of the carrier, and a bottom face of the chamber unit. The entry plane includes an entry line at which the carrying surface enters treatment liquid in the chamber unit, and vertically extends from the entry line. The exit plane includes an exit line at which the carrying surface exits from the liquid in the chamber unit, and vertically extends from the exit line. The partition extends in a longitudinal direction of the carrier and has an edge portion adjacent to the carrying surface.

Abstract: There is provided a liquid ejecting method using a liquid ejection head including a first ejection port for ejecting an ink containing a color material, a first energy generating element for generating energy utilized for ejecting the ink from the first ejection port, a second ejection port for ejecting an improvement liquid for improving recording property of the ink, and a second energy generating element for generating energy utilized for ejecting the improvement liquid from the second ejection port. The method includes ejecting the ink from the first ejection port by driving the first energy generating element, and ejecting the improvement liquid from the second ejection port by driving the second energy generating element, in a state where a liquid level of the improvement liquid in the second ejection port has moved forward in a liquid ejection direction than a liquid level of the ink in the first ejection port when the first energy generating element is driven.

Abstract: A method for printing ink on adhesive tape including providing a tape supply roll having tape wound thereon, unwinding the tape from the roll, printing ink on the side of the tape having a release agent, exposing the release agent and ink to a temperature increase to cure, and rewinding the tape onto a reel. A system for printing ink on adhesive tape.

Abstract: A method of controlling in a printer the maintenance of an inkjet printhead supplied with fluid from a plurality of fluid sources, the method includes the steps of (a) monitoring the usage of the plurality of fluid sources; (b) identifying a preferred fluid source for use in a maintenance operation based on the monitored usage of the plurality of fluid sources; and (c) performing the maintenance operation using a first quantity of fluid from the preferred fluid source.

Abstract: There is provided a fluid ejection apparatus for ejecting a fluid including a head for ejecting the fluid and a moisture retention head cap device for retaining moisture of the head. The moisture retention head cap device is disposed so as to surround a periphery of the head to cover the whole of the head when retaining moisture of the head.

Abstract: There is provided a printing method that is performed by using a first nozzle ejecting color ink that is used for printing an image on a medium and is cured in a case where irradiation of an electromagnetic wave is received, a second nozzle ejecting a process solution that is used for processing the surface of the medium and is cured in a case where irradiation of an electromagnetic wave is received, and an irradiation unit emitting the electromagnetic wave.

Abstract: A treatment solution for ink-jet recording includes water; and basic amino acid or a salt thereof which is contained in the treatment solution in an amount of not less than 1% by weight.

Abstract: The present invention provides an ink set which has a good discharge stability, with which high-definition images are obtained even when printing at high speed, and which is excellent in drying characteristics and thereby it is difficult for offset to occur. An ink set containing an ink composition containing (a) a pigment, (b) a water-soluble solvent, (c) a surfactant, and (d) water, and a colorless ink composition containing (e) a coagulation accelerator for accelerating the coagulation of the ink composition, and (f) a water-soluble solvent, characterized in that the water-soluble solvent (b) of the ink composition contains 65% by mass or more of a water-soluble solvent having an SP value of 27.5 or less, and the content of the water-soluble solvent (b) in the ink composition is from 30% by mass to 55% by mass, and that the water-soluble solvent (f) of the colorless ink composition contains 90% by mass or more of a water-soluble solvent having an SP value of 27.5 or more.

Abstract: A treatment solution for ink jet recording includes water; and a compound represented by the following general formula (1) or a salt thereof, wherein in the general formula (1), m is an integer from 2 to 6, n is an integer from 20 to 40.

Abstract: The ink set for inkjet recording includes: a water-based ink containing pigment particles and 10 to 25 wt % of water-soluble high-boiling-point organic solvent having an SP value of not higher than 30; and a treatment liquid containing a fluidity reducing agent which reduces fluidity of the pigment particles by making contact with the water-based ink, and 10 to 25 wt % of water-soluble high-boiling-point organic solvent having an SP value of not higher than 30.

Abstract: The ejection positions of a plurality of pre-processing agent ejection nozzles and the ejection positions of a plurality of ink ejection nozzles as seen in a direction orthogonal to the transport direction of a recording medium are in a one-to-one correspondence with each other. A controller causes the process of ejecting ink of a first color from the ink ejection nozzles onto the recording medium subjected to the ejection from the plurality of pre-processing agent ejection nozzles so as to form a failure detection printing pattern which is a printing pattern formed by providing a time lag between the processes of ejecting the ink from adjacent ones of the plurality of ink ejection nozzles. An ejection failure in the pre-processing agent ejection nozzles is detected by judging that a pre-processing agent ejection nozzle corresponding to a region where bleeding results suffers the ejection failure.

Abstract: The inkjet recording apparatus has: an ink droplet ejection device which ejects a droplet of an ink containing a coloring material; a treatment liquid deposition device which deposits a treatment liquid that causes the coloring material contained in the ink to aggregate so as to create a coloring material aggregate; and an absorbing body which absorbs a solvent of a mixed liquid including the ink ejected as the droplet by the ink droplet ejection device and the treatment liquid deposited by the treatment liquid deposition device, wherein solvent absorption holes having an opening diameter larger than a spreading width of the coloring material aggregate in the mixed liquid on a surface of a recording body are formed in a surface of the absorbing body.

Abstract: A pretreatment liquid for ink-jet recording by applying the pretreatment liquid to a recording medium, the pretreatment liquid including fine particles and a solvent. Specifically, a contact angle between the pretreatment liquid and a surface of the recording medium is greater than or equal to about 75 degrees.

Abstract: The invention provides a water-based ink composition for inkjet recording which contains vinyl polymer particles containing a styrene-acrylic acid copolymer in which the total content of the constitutional units derived from styrene monomer, acrylic acid, and methacrylic acid is 45% by mass or more; and at least one of an azo pigment represented by Formula (1), a tautomer thereof, a salt or hydrate thereof; and a water-based liquid medium, and which is excellent in discharge stability after a long-term storage or after aging at high temperatures: wherein, Q represents a heterocyclic group; W represents an alkoxy group, an amino group etc.; X1 and X2 each independently represent a hydrogen atom, an alkyl group etc.; R1 represents a hydrogen atom or a substituent; R2 represents a heterocyclic group; and n represents an integer of 1 to 4.

Abstract: Methods and means for imaging on paper media are provided. A data file of an image to be printed is analyzed. A pattern for a clear fluid is determined according to the analysis. The pattern of clear fluid is applied to a paper media traveling in a particular direction, wherein the pattern is generally elongated along the direction of travel. The pattern of clear fluid is defined by a maximum width that is generally equal to the maximum width of the image to be formed. One or more colored inks are applied such that the image is formed and is supported by the paper media. The paper media exhibits reduced cockle as a result of the pattern of clear fluid.

Abstract: An inkjet recording apparatus records an image onto a recording medium by using an ink containing a coloring material, and the inkjet recording apparatus has: a first treatment agent deposition device which deposits a first treatment agent having a function of suppressing permeation of liquid into the recording medium, onto the recording medium; a second treatment agent deposition device which deposits a second treatment agent having at least one of a function of aggregating the coloring material contained in the ink and a function of increasing viscosity of the ink, onto the recording medium; an image processing device which converts input image data into dot data; and an ink droplet ejection head which ejects droplets of the ink onto the recording medium in accordance with the dot data.

Abstract: According to an embodiment of the present invention, with an inkjet printer, an image is formed by adhering a colorless pretreatment liquid containing a polyvalent metal salt, 3-methoxy-3-methyl-1-butanol, and water to a plain paper thereby subjecting the plain paper to pretreatment, and thereafter, ejecting at least one type of ink composition containing a pigment and water and reacting with the polyvalent metal salt onto the plain paper.

Abstract: A production method of a transfer medium includes: forming a colored layer on a base material by discharging ink from an ink jet head toward the base material; and forming an adhesive layer on the colored layer by discharging an adhesive liquid from the ink jet head toward the colored layer.

Abstract: When a linear pattern is drawn on a non-permeable medium by ejecting droplets of liquid onto the non-permeable medium by using an inkjet method, drawing of the linear pattern is started from a middle portion of the linear pattern.

Abstract: An ink jet recording method including attaching a liquid dispersant in which an amphoteric polymer containing a core portion having an anion group and a shell portion having a cation group that covers the core portion is dispersed in a dispersing medium to a recording medium and discharging and attaching anionic ink containing a coloring material and water to the surface of the recording medium to which the liquid dispersant is attached.

Abstract: A recording apparatus includes a first nozzle for ejecting a first type of liquid for base coating onto a recording target medium and a second nozzle for ejecting a second type of liquid onto a base formed as a result of the base coating. A distance between the first nozzle and the recording target medium is shorter than a distance between the second nozzle and the recording target medium.

Abstract: An image forming method including: applying a pre-treatment liquid onto a coating layer provided on at least one surface of a support of a recording medium, jetting an inkjet ink onto the coating layer, onto which the pre-treatment liquid has been applied, so as to form an image, and applying or jetting a post-treatment liquid onto the coating layer, onto which the inkjet ink has been jetted, so as to form a transparent protective layer on the coating layer, wherein the inkjet ink contains the water-dispersible colorant, a water-soluble organic solvent, a surfactant, a penetrant and water, and wherein an amount of pure water transferred into the recording medium, provided with the coating layer, measured at a contact time of 100 ms with a dynamic scanning liquid absorptometer is 1 ml/m2 to 10 ml/m2, and the pre-treatment liquid contains a water-soluble aliphatic organic acid.

Abstract: A drum maintenance system for use in an imaging device includes a reservoir having a supply of release agent, and an applicator configured to receive release agent from the reservoir and to apply the release agent to an intermediate imaging surface of an imaging device. A first metering blade is positioned in wiper mode at a first position adjacent the intermediate imaging surface and configured to meter the release agent on the intermediate imaging surface applied by the applicator. A second metering blade is positioned in wiper mode at a second position adjacent the intermediate imaging surface.

Abstract: A valve includes: a passage having a first passage which communicates an atmosphere-communicating passage and outside of a cartridge body, and a second passage which branches from the first passage; an electrode provided on a wall surface forming the second passage; an electrode provided on a wall surface of a bottom wall lid forming the first passage; a driver IC which applies a predetermined voltage selectively to one of these two kinds of electrodes; an insulating film provided on a surface of the electrode; and an insulating film provided on a surface of the electrode. Accordingly, there is provided a valve which is capable of opening and closing a passage communicating two spaces separated from each other, which has no movable part, and which has a simple construction.

Abstract: An ink for inkjet recording, containing: dispersed particles A; dispersed particles B; a water-soluble solvent; a surfactant; and water, wherein the dispersed particles A are coloring particles obtained by dispersing an organic pigment in water with assistance of a surfactant, and the dispersed particles B are coloring particles obtained by dispersing a polymer-coated organic pigment in water.

Abstract: A fluid discharging apparatus including a head that has a nozzle which discharges fluid from the nozzle and a sheet shaped wiping member for wiping a nozzle surface of the head. The wiping member is moved relative to the nozzle surface so that portions of the wiping member are sequentially in contact with the nozzle surface in order to wipe the nozzle surface.

Abstract: A treatment solution used for ink-jet recording, including: polyallylamine contained in the treatment solution in an amount of 0.5% by weight to 10% by weight; polyamidepolyamine-epihalohydrin copolymer contained in the treatment solution in an amount of 0.3% by weight to 2% by weight; and water.

Abstract: A treatment solution used for ink-jet recording, includes a quaternary alkylammonium salt represented by general formula (1) and water: wherein R1 to R3 are alkyl groups each having 1 to 3 carbon atoms, and are identical with each other or different from each other; R4 is an alkyl group having 8 to 16 carbon atoms; each of the alkyl groups of R1 to R4 is a substituted alkyl group or an unsubstituted alkyl group, and has a straight chain or a branched chain; and X? is one of inorganic acid ion, organic acid ion, and hydroxide ion.

Abstract: There is provided a treatment solution used for ink-jet recording, comprising: quaternary alkylammonium hydroxide represented by general formula (1); an acid including at least one of dicarboxylic acid and tricarboxylic acid; and water; wherein the quaternary alkylammonium hydroxide is neutralized, to be a quaternary alkylammonium salt, by the at least one of the dicarboxylic acid and the tricarboxylic acid to have a degree of neutralization which is not less than 50% and not more than 110%; wherein each of R1, R2, R3 and R4 is an alkyl group having 1 to 4 carbon atoms; the alkyl group is a substituted alkyl group or an unsubstituted alkyl group, and is a straight chain alkyl group or a branched chain alkyl group; and the R1 to R4 are same with or different from one another.

Abstract: An ink-jet recording method is provided. The ink-jet recording method includes (i) supplying an aqueous treatment liquid containing a fixing agent for fixing the components contained in an aqueous ink, on an art paper or a coat paper, in an amount of from ?50% to +30% with respect to the value of ?V [ml/m2] determined by the following formula (I), and (ii) recording an image by ejecting an aqueous ink containing a colorant, resin particles, an aqueous organic solvent and water, on the art paper or coat paper by an ink-jet method. In Formula (I), Vr represents a roughness index of the art paper or coat paper obtained from a measurement of liquid absorbability according to the Bristow method, and Vi represents an amount of transfer at the inflection point where the value of the absorption coefficient of the art paper or coat paper changes in the measurement of liquid absorbability according to the Bristow method.

Abstract: An ink composition includes a polymerization initiator, water, and a modified polyallylamine or modified polyvinylamine having an ethylenically unsaturated double bond in a side chain thereof.

Abstract: An ink composition includes a compound having a structure represented by the following Formula (I), a polymerization initiator and water; wherein, in Formula (I), R1 represents a hydrogen atom or a methyl group; X1 represents —O— or —NH—; A1 represents —O— or —NH—; M1 represents a metal atom; and n represents an integer of from 1 to 10.

Abstract: In an ink jet print head formed with ejection nozzles, which may use a wiping member to wipe ink adhered to the surface of the ink jet print head, it is desired to be able to perform a wiping operation in any environment without requiring a large amount of space to accommodate the liquid used during the wiping operation. To this end, a cooling unit is used which can produce water by cooling the atmosphere. This cooling unit is operated to produce water, which is brought into contact with and transferred onto the wiping member before the wiping member performs wiping.

Abstract: The invention relates to an inkjet recording sheet and use of a composition for improving inkjet printing properties of an inkjet recording sheet comprising wood or lignocellulosic fibre material. According to the invention the composition comprises calcium sulphate dihydrate and starch solution.

Abstract: A water-based black ink composition for ink jet recording including: a carbon black pigment at least partially coated with a water-insoluble first dispersant polymer containing a structural unit represented by the following formula (1) and a structural unit different from the structural unit represented by the following formula (1); a coloring pigment selected from the group consisting of a phthalocyanine pigment, a quinacridone pigment and an azo pigment, the coloring pigment being at least partially coated with the first dispersant polymer or a second dispersant polymer consisting of the same structural units as the structural units constituting the first dispersant polymer but having a composition ratio of the structural units different from a composition ratio of the structural units of the first dispersant polymer; and an aqueous medium:

Abstract: An ink jet liquid composition which is used with an ink containing a pigment and which contains an ABC triblock polymer formed from an A block having an aryl group, a B block having a unit represented by the general formula (1), and a C block having a unit represented by the general formula (2), wherein an acid value of the polymer is 20 mgKOH/g or more and less than 150 mgKOH/g, the ratio of the number average molecular weight of the polymer to the acid value is 50 or more and 200 or less, the proportion of the A block in the polymer is 20.0 percent by mass or more and 80.0 percent by mass or less and is 5.0 times or more and 15.0 times or less the proportion of units derived from all acidic monomers contained in the polymer.

Abstract: The inkjet recording apparatus includes: a liquid set which includes a plurality of first liquids and a second liquid, the first liquids each containing solvent-insoluble materials, the second liquid causing the solvent-insoluble materials to form aggregate; a liquid ejection device which ejects the first liquids and the second liquid from different ejection ports; and a cleaning liquid supply device which supplies a cleaning liquid causing the aggregate of the solvent-insoluble materials to redispersed. The liquid set satisfies Dmax/Drain?2.6, where Dmax is a maximum of average particle sizes of the solvent-insoluble materials in the first liquids, and Dmin is a minimum of the average particle sizes of the solvent-insoluble materials in the first liquids.