Abstract: A treatment liquid for ink jet recording, containing a polyvalent metal ion and water. A dissolved carbon dioxide concentration in the treatment liquid is 4 mg/l or lower.

Abstract: The invention provides an ink set including an ink containing at least a coloring material, and a treatment liquid including at least one first aggregating agent selected from the following group (A) and at least one second aggregating agent selected from the following group (B), which is different from the group (A): (A) orthophosphoric acid, phosphorous acid, hypophosphorous acid, pyrophosphoric acid, tartaric acid and salts thereof; and (B) an organic acid having a first dissociation constant pKa of 3.2 or less, or a salt thereof (b-1), an inorganic acid or a salt thereof (b-2), and a polyvalent metal salt (b-3).

Abstract: The present invention provides an inkjet ink which is excellent in image quality and high-speed printing on plain paper, in storage stability and in ejection stability and gives less load on a maintenance device for an inkjet recording apparatus; and an ink cartridge, an inkjet recording apparatus, and an inkjet recording method, using the inkjet ink. An inkjet ink containing a water dispersion of pigment-containing water-insoluble vinyl polymer particles; a water-soluble organic solvent; and water, wherein an ink residue from the inkjet ink has a viscosity of 3,000 mPa·s or less, the ink residue is obtained by leaving the inkjet ink to stand at a temperature of 25° C. and a humidity of 15% until substantially no mass change occurs, and wherein the inkjet ink, pH of which is adjusted to 7 with an acid, has a viscosity of 500 mPa·s or more.

Abstract: Pre-treatment solutions are provided, which can improve printing density and prevent bleeding and strike through when printing, particularly inkjet printing is performed with an oil ink on a printing medium that has been treated with the pre-treatment solutions. The pre-treatment-solution can be selected from the following (I), (II) and (III): (I): a pre-treatment solution which comprises at least inorganic particles with an average particle diameter of not less than 1 ?m and not more than 20 ?m and a solvent, in which the difference in solubility parameter (SP value) between the solvent of the pre-treatment solution and the solvent of the oil ink is not less than 1.0 (cal/cm3)1/2; (II): a pre-treatment solution which comprises at least inorganic particles with an average particle diameter of not less than 0.1 ?m and less than 1 ?m and a solvent, in which the difference in solubility parameter (SP value) between the solvent of the pre-treatment solution and the solvent of the oil ink is not less than 2.

Abstract: In a method and thermotransfer printing device for setting the speed of a relative movement between the print head and a recording medium during a printing procedure in the thermotransfer printing device, in particular for setting the transport speed of a mail piece in a thermotransfer printing franking machine, the heat energies required for the generation of a predeterminable print image are calculated for the individual heating elements of the print head from start value that has been established for the desired speed. It is subsequently computationally checked whether the respectively calculated heat energy can be emitted at the respective heating element in a first time interval predetermined by the start value of the desired speed and a predeterminable remaining time. If so, a printing procedure follows in which the beginning of the printing procedure ensues using the end value of the desired speed.

Abstract: Provided is a set of a reaction liquid that has a buffering action against pH change and exhibits a pH of 3.5 or more and 5.5 or less, and an ink that has a higher pH than the reaction liquid. The ink comprises a pigment to a surface of a pigment particle of which a basic group that forms a cation form at the pH of the reaction liquid is bonded. The pigment does not have an acidic group having a pKa equal to or less than the pH of the reaction liquid. The pigment is dispersed by a water-soluble polymer that has an acidic group having a pKa equal to or more than the pH of the reaction liquid and equal to or less than the pH of the ink.

Abstract: An ink jet recording method for recording an image having metallic gloss on a textile product using an ink jet recording apparatus includes forming a base layer by letting droplets of a first ink composition containing a first thermoplastic resin adhere on the textile product; and forming a metallic gloss layer by letting droplets of a second ink composition containing a metallic pigment and a second thermoplastic resin adhere on the base layer. The glass transition temperature of the first thermoplastic resin is not higher than that of the second thermoplastic resin. The formation of the base layer is performed at a temperature not lower than the glass transition temperature of the first thermoplastic resin.

Abstract: A digital printing machine includes a rigid frame, a first linear motion X axis stage mounted on the frame, a printing table assembly movable on each linear X axis stage, a linear motion Y axis stage mounted on the frame perpendicular to the linear X axis stages, above the printing table assemblies, and an array of inkjet nozzles mounted on the linear Y axis stage for linear motion perpendicular to the X axis stage, also a second linear motion X axis stage mounted on the frame parallel to the first axis stage and arranged for operation independently of the first axis stage, and/or a curing unit located above the printing table assembly and/or a pre-printing wetting assembly, for printing over garments, by applying wetting composition on the printed material, prior to printing.

Abstract: A printing device includes a supply of colorant and a mechanism. The mechanism is receptive to removable insertion of a first print cartridge and a second print cartridge. One of the first print cartridge and the second print cartridge can be inserted into the mechanism at any given time. The first print cartridge at least ultimately uses the supply of colorant of the printing device to form the images on the media. The second print cartridge has a self-contained supply of colorant that is exclusively used in lieu of the supply of colorant of the printing device to form the images on the media.

Abstract: An improved printer and method of printing uses an electrostatic field at the point of ink contact with the print medium to improve ink application. This improved printer and printing method makes possible a higher resolution final image; provides for greater control of the application of ink on the print medium; permits the use of a wider range of inks having variable viscosities, surface tensions, and elasticities; and permits the use of a variety of ink application speeds.

Abstract: The disclosure relates to a surface treatment composition for inkjet media, including: at least one surface sizing agent selected from the group consisting of starch, starch derivatives, polymeric materials, and combinations thereof; and an ink fixative selected from the group consisting of at least one high valence metallic salt, at least one high valence complex poly-salt, and combinations thereof. The ink fixative is present in the surface treatment composition from about 10 weight % to about 50 weight % of the surface treatment composition. The at least one high valence metallic salt and the at least one high valence complex poly-salt have a valence greater than divalent. In addition, the disclosure relates to a method of making and a system for printing the surface treated media; and an inkjet printable paper.

Abstract: The present invention has its object to provide a treatment solution for inkjet textile printing that causes few remaining marks even when applied to a fabric. The present invention relates to a treatment solution for inkjet textile printing, the treatment solution comprising at least: 1) a water-soluble polyvalent metal salt; 2) at least one resin component selected from the group consisting of a nonionic resin emulsion, an anionic resin emulsion, and a carboxymethyl cellulose; 3) at least one surfactant component selected from the group consisting of a nonionic surfactant, an anionic surfactant, and an amphoteric surfactant; and 4) an aqueous medium, the treatment solution being applied to a fabric before printing of an ink composition for inkjet textile printing.

Abstract: An image forming method is disclosed, which includes applying a treatment liquid onto a recording medium that has a coated layer and has an area of 1,250 cm2 or more, applying an ink composition including a pigment and resin particles having a glass transition temperature (Tg) of 100° C. or higher onto the recording medium onto which the treatment liquid has been applied and which is conveyed at a conveyance speed of 200 mm/s or higher, heating and drying the applied treatment liquid and ink composition, cooling the recording medium that has been subjected to the heating and drying, to a temperature of 35° C. or lower, and accumulating the recording medium that has been subjected to the cooling, into an accumulation unit.

Abstract: Without newly providing a curling inhibition apparatus or a curling inhibitor and without placing excessive restrictions on a composition of an ink or a printing properties enhancing liquid, curling after printing is suppressed. In an ink jet printing apparatus which performs printing on a printing medium by ejecting from a printing head an ink and a reaction liquid which reacts with the ink, said apparatus comprising; means for on the basis of ink ejection data for ejecting the ink onto an one side of the printing medium, generating reaction liquid ejection data for ejecting the reaction liquid onto an other side of the printing medium.

Abstract: A cleaning system for an inkjet printhead comprises an inkjet printhead having an inkjet nozzle array associated therewith. The inkjet printhead is in fluid communication with a first source of a first pressurized fluid. A fluid nozzle associated with the inkjet printhead is in fluid communication with a second source of a second pressurized fluid. The cleaning system further comprises a collection plate. Ink is forcibly ejected from the inkjet printhead by the first source of the first pressurized fluid. A stream of the second pressurized fluid is guided by the fluid nozzle across a surface of the inkjet printhead to direct ink ejected from the inkjet printhead onto the collection plate.

Abstract: An image forming method includes ejecting an ink composition including a volatile organic solvent with a solubility parameter of 20 MPa1/2 to 25 MPa1/2, acid-functionalized polymer colloid particles with a glass transition temperature of 25° C. to 85° C., and a pigment with a surface at least a part of which is coated with a polymer, onto a non-porous substrate by an ink jet method to form an image, and the absolute value of the difference between the solubility parameter of the non-porous substrate and the solubility parameter of the volatile organic solvent of the ink composition falls within 15 MPa1/2.

Abstract: An aqueous pigment dispersion including: (A) a pigment; (B) a dispersion polymer having a neutralization degree of from 50% to 90% and a solubility of from 0.2 g to 0.8 g per 5 ml of water (25° C.), and containing an acidic group and a hydrophobic structural unit (a) having an aromatic ring linked via a linking group to an atom included in a main chain, a content ratio of the aromatic ring being from 10% by mass to less than 20% by mass based on a total mass of the polymer; and (C) a water-based liquid medium.

Abstract: The present invention provides a maintenance liquid for inkjet recording including at least water, an organic solvent, a basic compound and an acidic compound, and having pH of from 6.0 to 8.5.

Abstract: The image forming apparatus comprises: a treatment liquid deposition device which deposits treatment liquid onto a recording medium, the treatment liquid containing a polymerization initiator and particles introducing electrorheological properties; an electric field application device which applies an electric field to the treatment liquid having been deposited on the recording medium; an ink ejection device which ejects ink toward the recording medium on which the treatment liquid has been deposited, the ink containing a coloring material and a radiation-curable polymerizable compound; and a radiation irradiation device which irradiates radiation to cure the ink having been deposited on the recording medium.

Abstract: A liquid dispenser includes a liquid supply channel, a liquid supply adapted to feed a stream of liquid through the supply channel, a liquid return channel adapted to receive liquid from the supply channel, a liquid dispensing outlet opening, and a diverter member selectively movable into the supply channel to divert droplets to the dispensing outlet opening. The liquid flows from the liquid supply channel to the liquid return channel by Coanda effect when not diverted. The motion of the diverter member is substantially orthogonal to and opposes the direction of liquid flow, so that energy associated with moving the diverter member imparts no energy to the diverted droplets. The energy associated with moving the diverter member is less than 100 nJ per pL droplet volume. In some embodiments, the energy associated with moving the diverter member is less than 10 nJ per pL droplet volume.

Abstract: The present invention provides an inkjet ink composition including at least one water-soluble organic solvent, water, at least one colorant, and at least one colloidal silica, wherein 40% or more by mass of a total content of the water-soluble organic solvent has an SP value of 27.5 or less, and the inkjet ink composition having excellent discharge reliability, and suppressing curling of prints formed with the ink and deterioration of liquid repellency of an inkjet head member.

Abstract: The present invention provides an image forming method at least including: applying, by an inkjet method, an ink composition containing at least one pigment as a coloring material, at least one kind of resin particles, at least one fluorine-based surfactant and water, on a recording medium which has a single pigment layer or multiple pigment layers on or above at least one surface of a support containing a cellulose pulp as a main component, and has an amount of transfer of purified water to a medium, when measured with a dynamic scanning absorptometer, of from 1 ml/m2 to 15 ml/m2 for a contact time of 100 ms, and of from 2 ml/m2 to 20 ml/m2 for a contact time of 400 ms; and applying a treatment liquid containing at least one aggregating agent that aggregates components in the ink composition.

Abstract: The present invention provides an inkjet ink composition including: self-dispersing polymer particles, each of the self-dispersing polymer particles including a structural unit derived from a hydrophilic monomer and a structural unit derived from a hydrophobic monomer; colloidal silica; and colorant particles, the inkjet ink composition having excellent dischargeability and suppressing the deterioration of the liquid repellency of an inkjet head member.

Abstract: The invention provides an inkjet ink composition including a pigment and colloidal silica, the pigment being covered with a water-insoluble resin including a constituent unit having an acidic group, with which rub resistance of images formed and ink discharge reliability are excellent and deterioration of liquid repellency of an inkjet head member is suppressed.

Abstract: In a printing section, inks of four colors and a transparent ink are jetted onto an image formation area of a recording paper on which an image is recorded, and a transparent ink is jetted onto an adhesion area at which the recording paper is adhered to the other recording paper. Thereafter, the ink on the image formation area is cured by irradiating ultraviolet rays to the image formation area, and with the transparent ink in the adhesion area not cured as the ultraviolet rays are not irradiated to the adhesion area, the recording paper is discharged to a paper discharge tray of an adhering section. When all the recording papers to be adhered are aligned in the paper discharge tray, the adhesion area of the plurality of recording papers is pressed and heated by a heating plate, and the recording papers P are adhered to each other.

Abstract: The present invention provides an inkjet recording processing liquid for use in an inkjet recording method of causing a processing liquid to adhere to a recording medium and thereafter causing ink to adhere to the recording medium to which the processing liquid has adhered. The inkjet recording processing liquid contains water, glycerin, and at least one multivalent metal salt selected from the group consisting of calcium nitrate and magnesium nitrate. The glycerin content in the processing liquid is 10 to 50 mass percent, and the multivalent metal salt content in the processing liquid is 0.8 to 2.0 mol/L.

Abstract: An image forming apparatus is disclosed that includes an image forming unit that forms an image on a medium to be recorded; and a foam application unit that applies a foam generated from at least any one of a liquid and a gel to the medium to be recorded or an intermediate member for applying the foam to the medium to be recorded. The foam application unit has a foam generation unit that generates the foam, an application unit that applies the generated foam to the medium to be recorded or the intermediate member, a foam supplying path through which the generated foam is supplied to the application unit, and a unit that increases a volume of the foam supplying path. The foam application unit increases the volume of the foam supplying path when stopping the supply of the foam to the application unit.

Abstract: An ink set including an aqueous ink composition and a treatment liquid is disclosed. The aqueous ink composition includes a pigment, a graft polymer including an anionic group at a side chain thereof, and an aqueous medium. The treatment liquid includes an acidic compound that aggregates one or more components of the aqueous ink composition.

Abstract: The invention provides an ink composition including water, a colorant, a water-soluble organic solvent, a surfactant and a water-soluble silicate, the water-soluble silicate being comprised in an amount of from 0.0001% by mass to 0.5% by mass with respect to a total mass of the ink composition, and the water-soluble organic solvent including a water-soluble organic solvent having a value of solubility parameter (SP) of 27.5 or less in an amount of 40% by mass or more with respect to a total mass of the water-soluble organic solvent; an ink composition including a water-soluble alkali metal silicate and a pigment coated with a water-insoluble resin, the water-insoluble resin including a structural unit having an acidic group; and an ink composition including a water-soluble alkali metal silicate, self-dispersing polymer particles, and a pigment.

Abstract: An ink composition including colored particles is disclosed. The colored particles includes a resin dispersant including at least one radically polymerizable group and at least one aromatic partial structure derived from a compound selected from the group consisting of an aromatic hydrocarbon compound, a condensed ring aromatic hydrocarbon compound, an aromatic heterocyclic compound, a condensed ring aromatic heterocyclic compound, and a compound having two or more aromatic hydrocarbon compounds linked to each other; and a colorant.

Abstract: A printing apparatus includes an ejection mechanism that ejects, toward a recording medium, a first ink containing hollow resin particles, and a second ink which does not contain a colorant and which contains a permeating liquid that permeates to the inside of the hollow resin particles and a fixing resin compound for fixing the permeating liquid, the fixing resin compound having an average particle diameter equal to or less than the average particle diameter of the hollow resin particles.

Abstract: An imaging method includes coating a transfer member with an adhesion promoter in a liquid state, changing the adhesion promoter on the transfer member from the liquid state to at least one of a solid state and a gel state, depositing a liquid marking agent on the solidified adhesion promoter corresponding to an image, changing a state of the adhesion promoter from the solid state to the flowable state, and transferring the liquid marking agent and the adhesion promoter in the flowable state from the transfer member to a substrate to form a hard version of the image thereon.

Abstract: A printing apparatus includes an ejection mechanism that ejects, toward a recording medium, an ink containing hollow resin particles, and a moisturizing liquid that contains a humectant and that does not contain a thickener, the viscosity of which is increased by drying, or a colorant.

Abstract: An ink set which includes an ink composition including a pigment, polymer particles having a glass transition temperature of 70° C. or more and a volume average particle size of 70 nm or lower, and a water-soluble polymerizable compound that undergoes polymerization when irradiated with an active energy ray; and a treatment liquid including an aggregating agent for aggregating components in the ink composition, and an image forming method, including an ink applying process for applying the ink composition; and a treatment liquid applying process for applying the treatment liquid, are provided.

Abstract: The present invention provides an ink set including: an ink composition including a pigment, polymer particles having an ethylene oxide chain in a side chain of the polymer, and a water-soluble polymerizable compound that has an ethylene oxide chain and that is polymerized by active energy rays; and a treating liquid including an aggregating agent that aggregates ingredients in the ink composition.

Abstract: The present invention provides an image forming method including jetting an ink composition containing a pigment, a volatile water-soluble organic solvent, polymer particles and water, from a heated nozzle plate of an inkjet head onto a recording medium; and applying a maintenance liquid on a nozzle surface of the nozzle plate after jetting.

Abstract: An ink jet recording apparatus comprising a color ink container having a capacity V1 accommodating therein a solvent polymerizable in the presence of an acid and a colorant, a reaction liquid container having a capacity V2 (V2<V1) accommodating therein a reaction liquid comprising a solvent, and a photo-acid generating agent capable of generating an acid when irradiated with light, a stirring container mixing the color ink and the reaction liquid at a mixing ratio of S1:S2 (the color ink:the reaction liquid) to prepare a recording ink, a color ink supply means feeding the color ink to the stirring container, a reaction liquid supply means feeding the reaction liquid to the stirring container, an ink jet recording head ejecting the recording ink to a recording medium, and a supply tube feeding the recording ink to the recording head.

Abstract: The present invention provides an ink set including an ink composition and a maintenance liquid that removes from a head nozzle surface a substance that is derived from the ink composition and that adheres to the head nozzle surface, the ink composition including a pigment coated with a water-insoluble polymer formed by copolymerizing a monomer mixture including a styrene macromer; polymer particles; a water-soluble organic solvent; and water.

Abstract: Novel inkjet ink compositions for forming an image in a form of an elastic film attached to a surface of a stretchable and/or flexible substrate and processes utilizing same for inkjet printing color images on various substrates such as colored and absorptive or impregnable stretchable materials, which are characterized by heightened efficiency in process time, ink and energy consumption, as well as products having durable, wash-fast and abrasion-fast images printed thereon by the process, are disclosed. The novel ink compositions comprise a first part, which contains a property-adjusting agent and a carrier, and a second part which contains an emulsified property-sensitive proto-elastomeric film-forming agent, a colorant and a carrier, such that the second part congeals upon contact with the property-adjusting agent. The second part is digitally applied to the substrate less than 1 second following the application of the first part to the substrate.

Abstract: Atmospheric plasma inkjet printing apparatus and methods for fabricating color filters using the same. The atmosphere plasma inkjet printing apparatus includes a nozzle plate having a first column of nozzles and a second column of nozzles. An inkjet printhead module corresponds to the first column of nozzles. An atmospheric plasma module is corresponds to the second column of nozzles.

Abstract: An inkjet ink composition includes a colorant, two or more hydrophilic organic solvents, and particles of a polymer containing a structural unit derived from a hydrophilic monomer and a structural unit derived from a hydrophobic monomer. The polymer has a glass transition temperature of 150° C. or higher and an I/O value of from 0.2 to 0.55, and the particles of the polymer have a volume average particle diameter of from 0.1 to 10 nm.

Abstract: The liquid ejection apparatus has: a head which ejects liquid; a carriage which conveys the head; a sub tank which is mounted on the carriage, accommodates the liquid to be supplied to the head, and has an elastic film deforming elastically in accordance with supply of the liquid to the head; a liquid flow channel opening and closing valve which opens and closes a first liquid flow channel between the head and the sub tank; a main tank which stores the liquid to be supplied to the sub tank; a liquid supply coupling section which couples a second liquid flow channel connected to the main tank, to the sub tank, in a state where the carriage is located in a predetermined home position; and an elastic film movement device which moves the elastic film in a direction which causes the elastic film to recover from elastic deformation to assist deformation recovery of the elastic film of the sub tank, in a state where the first liquid flow channel is closed by means of the liquid flow channel opening and closing valve

Abstract: Compositions, systems, and methods for improving dry rub resistance and resistance to highlighter smear of a printed image on a substrate are provided. The overcoating composition can comprise an aqueous-based liquid vehicle and about 0.5 wt % to about 40 wt % latex polymer particles dispersed in the liquid vehicle. The latex polymer particles can include about 18 wt % to about 99.5 wt % polymerized hydrophobic monomers selected from the group of 4-methylstyrene, cyclohexyl acrylate, isobornyl methacrylate, isobornyl acrylate, and combinations thereof, about 0.1 wt % to about 20 wt % polymerized acid monomers. The overcoating composition can be formulated to be ink-jetted onto the substrate and is substantially devoid of colorant.

Abstract: A surface treatment solution for a recording paper on which ink jet recording is performed with a water-based ink, the surface treatment solution includes calcium alginate which is contained by 0.008 wt % to 0.074 wt % in the surface treatment solution, sodium alginate which is contained by 0.013 wt % to 0.084 wt % in the surface treatment solution, a water-soluble organic solvent, and water.

Abstract: The image forming apparatus comprises: an ink ejection device which ejects ink through nozzles, the ink containing coloring material; a treatment liquid ejection device which ejects treatment liquid through nozzles, the treatment liquid being a colorless transparent liquid containing infrared-absorbing material and having at least one of an action of insolubilizing the coloring material, an action of aggregating the coloring material, and an action of preventing dispersion of the coloring material; an infrared irradiating device which irradiates infrared light onto the treatment liquid having been ejected from the treatment liquid ejection device; and a treatment liquid determination device which includes a photoelectric transducer having sensitivity to the infrared light.

Abstract: The present invention provides a method of ink-jet recording that includes the steps of pretreating by applying a pretreatment liquid onto a recording medium in advance of ink-jet recording, and recording by ejecting a pigment ink onto the recording medium by an ink-jet method. The pretreatment liquid includes the following components (i) and (ii), and water.

Abstract: The invention provides an image forming method having a step of applying an ink containing a coloring material to a recording medium by an ink jet recording system and a step of applying a reaction liquid which reacts with the ink to the recording medium, in which the ink is brought into contact with the reaction liquid on the recording medium, thereby forming an image, wherein the reaction liquid contains an oil and fat component having an iodine value of 100 or more.

Abstract: An image forming method of the present invention including applying a pretreatment liquid to a recording medium, and discharging an inkjet recording ink dropwise according to an image signal to form an image on the recording medium on which the pretreatment liquid has been applied, wherein the recording medium is regular paper which has no coat layer, the pretreatment liquid contains a cationic polymer compound, a surfactant A, water and a water-soluble organic acid, and the inkjet recording ink contains a water-dispersible colorant, a water-soluble organic solvent, a surfactant B, a penetrating agent and water, and wherein the pretreatment liquid has a static surface tension of 20 mN/m to 30 mN/m.

Abstract: The invention relates to dissolving an anionic dye/cationic polymer complex including the step of applying to the complex a water-soluble solvent having a dielectric constant from 20 to 43 at standard temperature and pressure.

Abstract: An ink jet recording medium having an ink receiving layer containing a binder which containing an acrylonitrile butadiene type copolymer, the butadiene concentration of the copolymer is 50 weight % or more, and an inorganic pigment on one or two sides of a base paper mainly composed of wood pulp, wherein the concentration ratio of the acrylonitrile butadiene type copolymer to 100 parts by weight of the inorganic pigment is from one part by weight to eight parts by weight, while 60 weight % or more of the inorganic pigment is kaolin with particles of 0.4 ?m or more and below 4.2 ?m which account for 64% or more as the cumulative value of the volumetric basis when measured using a laser diffraction method, and the surface roughness of the ink receiving layer is from 0.6 ?m to 1.4 ?m when a hard backing is used at a clamp pressure of 1,000 kPa according to JIS P8151.