| KONICA MINOLTA IJ TECHNOLOGIES, INC. Patent applications |
| Patent application number | Title | Published |
|---|
| 20120132350 | NOZZLE PLATE HOLDING DEVICE AND METHOD FOR MANUFACTURING INKJET HEAD - A nozzle plate holding device having a holding section which holds a nozzle plate arranged with a plurality of nozzles, and the nozzle plate holding device being used for bonding the nozzle plate, while the holding section holds the nozzle plate, onto a head chip arranged with a plurality of channels, wherein the holding section is configured to be capable of causing a distortion deformation of the nozzle plate in a direction that is parallel to a surface of the nozzle plate and crosses a length direction of the nozzle plate. | 05-31-2012 |
| 20120038725 | WATER-BASED INKJET INK, METHOD FOR PRODUCING INKJET PRINTED PRODUCT USING THE SAME, AND METHOD FOR PRODUCING WATER-BASED INKJET INK - Disclosed is an inkjet ink which provides a high-quality image in that whitening of the recorded image film is inhibited, durability of the image is good, and there is no banding, and the like; inkjet injection stability and ink shelf life are excellent; and head maintenance returnability is excellent Also disclosed are a method for producing an inkjet printed product using the same, and a method for producing a water-based inkjet ink. This inkjet ink comprises at least a) a pigment, b) a polymer dispersant comprising polyethylene oxide groups having an acid value of less than 50 mgKOH/g (c) acrylic copolymer resin, and (d) at least one water-soluble organic solvent selected from glycol ethers and 1,2-alkanediols having 4 or more carbons. | 02-16-2012 |
| 20120033011 | INKJET INK AND INKJET RECORDING METHOD - Provided is an inkjet ink comprising at least water, a pigment, a resin, a water-soluble organic solvent, and a surfactant, wherein the resin comprises a copolymer resin synthesized from a monomer that includes a (meth)acrylic monomer, and the copolymer resin has an acid value of not less than 50 mgKOH/g and not more than 200 mgKOH/g, a glass transition temperature (Tg) not less than 20 and not more than 100° C., and a weight-average molecular weight (Mw) not less than 20,000 and not more than 100,000, and as a result, a high-quality image is formed in that abrasion resistance and adhesiveness on a non-absorptive recording medium are high, glossiness is high, and there is no ink mixing, and ejection performance is good and recovery through maintenance is excellent. Also provided is an inkjet recording method that uses the same. | 02-09-2012 |
| 20110316927 | Ink-Jet Textile Printing/Recording Process - Provided is an ink-jet textile printing/recording process, by which it is possible to form high-quality prints which do not suffer from bleeding, lowering in the density of developed color, contamination of non-printed white areas, or other faults. Thus, the ink-jet textile printing/recording process enables the expression of colorful designs. The ink-jet textile printing/recording process comprises applying a functional ink by an ink-jet system to at least portions of a textile where printed areas with the maximum density are to be formed, and then applying a recording ink to the resulting textile by an ink-jet system, wherein the functional ink contains both a water-soluble polymer and a water-soluble organic solvent, and the recording ink contains a disperse dye, a binder resin, and a water-soluble organic solvent. | 12-29-2011 |
| 20110165387 | ACTINIC ENERGY RADIATION CURABLE INK-JET INK, IMAGE FORMING METHOD USING THE SAME, AND PRINTED MATTER OBTAINED THEREBY - Provided is an actinic radiation curable inkjet ink capable of high sensitivity and high glossy image; and an image forming method utilizing the same. An actinic radiation curable inkjet ink comprising a photo polymerization initiator and a polymerizable monomer, wherein a surface free energy γ | 07-07-2011 |
| 20110018929 | NONAQUEOUS INK JET INK, PROCESS FOR PRODUCING NONAQUEOUS INK JET INK, AND INK JET RECORDING METHOD - Disclosed is a nonaqueous ink jet ink that is suitable for printing (scratch resistance and resistance to alcohol wiping) on recording media of plastics such as polyvinyl chloride, is highly safe, can be used without posing any problem of odor, has excellent properties of ink ejection from an ink jet head, and can realize a good printed image quality. Also disclosed are a process for producing a nonaqueous ink jet ink and an ink jet recording method using the nonaqueous ink jet ink. The process for producing a nonaqueous ink jet ink is a process for producing a nonaqueous ink jet ink containing at least an organic solvent, a pigment, and a fixing resin. The process is characterized in that the fixing resin satisfies a b/a value of not more than 0.020 wherein a represents the tall of integrated values of areas of all of peaks derived from the fixing resin among all of peaks detected in a proton nuclear magnetic resonance analysis; and b represents the total of integrated values of areas of all of peaks derived from the compounds other than the fixing resin. | 01-27-2011 |
| 20100328382 | INKJET RECORDING APPARATUS AND DRIVE METHOD OF INKJET RECORDING HEAD - An inkjet recording apparatus having: a recording head including a pressure generation section, a pressure chamber, and a nozzle; and a drive signal generator which generates the drive signal including a first expansion pulse, a contraction pulse, and a second expansion pulse, wherein the pulses are generated to satisfy that: a peak value position P | 12-30-2010 |
| 20100328381 | INKJET RECORDING APPARATUS - An inkjet recording apparatus including a recording head having a nozzle, a pressure chamber, and a pressure generation section; and a drive signal generator which generates a drive signal for applying at least one drive pulse, wherein the apparatus ejects the ink droplet from the nozzle by applying the drive signal to activate the pressure generation section, wherein the drive signal generator generates the drive signal within one pixel period in chronological order including a first expansion pulse to expand the volume of the pressure chamber, a contraction pulse, and a second expansion pulse, and wherein a contraction pulse width is 0.1 AL through 0.5AL, where AL represents a half of an acoustic resonance period of the pressure chamber, and |Von|/|Voff| is 1.3 through 10, where Von and Voff respectively represent drive voltages of the first expansion pulse and the contraction pulse. | 12-30-2010 |
| 20100309272 | NON-AQUEOUS INK-JET INK AND INK-JET RECORDING METHOD - The invention provides a non-aqueous jet printing ink which has printability (abrasion resistance and resistivity to wiping with alcohol) suitable for recording media made of plastics such as polyvinyl chloride and which is excellent in safety and can be used without problematic odor, and a method of ink-jet recording with the ink. The non-aqueous jet printing ink is characterized by containing, as the essential components, a pigment, a pigment derivative having an acid group, a fixing resin, and a compound (A) consisting of one or more members selected from the group consisting of compounds represented by the general formulae ( | 12-09-2010 |
| 20100277537 | CORRECTION METHOD OF FEEDING AMOUNT OF CONVEYANCE BELT AND INKJET RECORDING APPARATUS USING THE METHOD - An inkjet recording apparatus includes: a control device that controls feeding of the conveyance belt so that a recording medium is conveyed at a pitch of a prescribed feeding amount in a feeding direction, and establishes an origin on the recording medium based on a detection of a starting point arranged on the conveyance belt, and controls driving of the inkjet head so that test dots of an amount equivalent to one round of the conveyance belt are printed on the recording medium at the pitch, from the origin; and a correction device that corrects the feeding amount of the conveyance belt to a corrected feeding amount corresponding to a feeding position of the conveyance belt based on the measurement results for an inputted printing space, wherein the control device causes an ink droplet to jet to the recording medium according to the corrected feeding amount. | 11-04-2010 |
| 20100265309 | NON-AQUEOUS INK-JET INK AND INK-JET RECORDING METHOD - A non-aqueous ink-jet ink which has printability on non-absorbing recording media such as polyvinyl chloride (abrasion resistance and water resistance), is excellent in ejection stability and safety, is free from problems concerning odor, does not cause operational abnormality in an ink-jet head even in long-term use, and can be stably used even after long-term storage. Also provided is a method of ink-jet recording with the ink. This non-aqueous ink-jet ink comprises a pigment, a binder resin, and an organic solvent. It is characterized in that at least 60 mass % of the organic solvent is accounted for by a water-soluble organic solvent and that the content in the ink of a metal salt which is the highest in content among the salts of metals selected among sodium, potassium, magnesium, and calcium is 3-50 ppm in terms of metal-ion concentration. | 10-21-2010 |
| 20100255211 | ACTINIC ENERGY RADIATION CURABLE INK-JET INK AND INK-JET IMAGE FORMING METHOD - Provided is an actinic energy radiation curable ink-jet ink, an ink-jet recording method, and printed matter satisfying ink storage stability, ejection stability, weather resistance, flexibility, safety, odorless properties. An actinic energy radiation curable ink-jet ink comprises a cationically polymerizable compound and a photo-cationic polymerization initiator, wherein the cationically polymerizable compound comprises a vinyl ether group as a reactive group, the photo-cationic polymerization initiator is a photo acid generator, an amount of generation of protonic acid from the photo acid generator is 1×10 | 10-07-2010 |
| 20100239777 | ACTINIC ENERGY RADIATION CURABLE INK-JET INK AND INK-JET RECORDING METHOD - An actinic energy radiation curable ink-jet ink comprising an actinic energy radiation polymerizable compound, wherein the actinic energy radiation polymerizable compound comprises a vinyl ether compound, a total content of the vinyl ether compound is 30% or more by mass, the vinyl ether compound comprises a bis-vinyl ether compound and a multifunctional vinyl compound having three or more vinyl ether groups, 10 to 70% by mass of the ink is the bis-vinyl ether compound, and 5 to 70% by mass of the ink is the multifunctional vinyl compound having three or more vinyl ether groups. | 09-23-2010 |
| 20100233446 | ACTINIC ENERGY RADIATION CURABLE INK-JET INK, INK-JET RECORDING METHOD, AND PRINTED MATTER - The present invention provides an actinic energy radiation curable ink-jet ink exhibiting excellent ink storage stability, nozzle ink repellency, and ejection stability, and also exhibiting excellent curability, anti-abrasion properties, solvent resistance, flexibility, weather resistance, and substrate adhesion properties even under various ambience factors and irradiation conditions, as well as an ink-jet recording method and printed matter using the same. In an actinic energy radiation curable ink-jet ink containing a cationically polymerizable compound and a photo-cationic polymerization initiator, an actinic energy radiation curable ink-jet ink wherein a cationically polymerizable compound having a vinyl ether group as a reactive group is contained at 50.0% by mass or more and the halogen ion content is 1.0 μg/g of the ink-100 μg/g of the ink. | 09-16-2010 |
| 20100227078 | FORMING METHOD OF METALLIC PATTERN AND METALLIC PATTERN - A method for forming a metallic pattern, which is provided with a printing process to print a pattern portion on a substrate by means of an inkjet method utilizing ink containing a precursor of a nonelectric plating catalyst and a plating process to form a metallic pattern by nonelectric plating on said pattern portion, wherein the surface of said substrate is constituted of ink non-absorptive resin and has been subjected to a plasma treatment, and said ink has a pH value at 25° C. of not less than 9.0. | 09-09-2010 |
| 20100118095 | IMAGE FORMING APPARATUS - Provided is an image forming apparatus for an inkjet recording having improved bleed resistance and stickiness resistance of formed image, exhibiting excellent abrasion resistance and adhesion to the recording medium, and having capability of printing onto recording medium with low softening temperature. An image forming apparatus for an inkjet recording method that forms an image by jetting a photo-curable inkjet ink comprising a colorant, a photo-curable monomer, a photo-initiator and a gelling agent onto a recording medium, and photo-curing the ink by a light irradiation apparatus, wherein an illuminance of the light irradiation apparatus is 1 mW/cm | 05-13-2010 |
| 20100118073 | INKJET RECORDING APPARATUS - An inkjet recording apparatus including: a recording head having a pressure chamber, and a pressure generation device to change a volume of the pressure chamber, wherein the recording head ejects an ink in the pressure chamber as an ink droplet from a nozzle by driving the pressure generation device based on drive signals; and a drive signal generating section to generate the drive signals, which include: an ejection pulse including a first pulse for expanding the volume of the pressure chamber and then contracting the volume; a preliminary pulse, to be applied immediately before the first pulse, for contracting the volume of the pressure chamber and then expanding the volume, and wherein the preliminary pulse is a rectangular wave having a pulse width of 2 AL or greater, where AL is ½ of an acoustic resonance cycle period of a pressure wave in the pressure chamber. | 05-13-2010 |
| 20090284571 | INKJET HEAD - On the back surface of a head chip having a plurality of rows of channels (row A, row B), the connection electrodes for row A that are electrically connected to the drive electrodes of the channels of row A are arranged, a first connection electrodes for row B that are electrically connected to the drive electrodes of the channels of row B are arranged between the rows of channels of row A and the rows of channels of row B, and also, between neighboring connection electrodes for row A, a second connection electrodes for row B are separately placed from the first connection electrodes for row B, the first connection electrodes and the second connection electrodes are connected electrically by drawing out interconnections, and the drawing out interconnections are in contact only with the first connection electrodes, the second connection electrodes, and the back surface of the head chip. | 11-19-2009 |
| 20090284569 | INKJET HEAD - In a harmonica type head chip having a plurality of rows of channels (row A and row B), connection electrodes for row A and the connection electrodes for row B formed on the back surface of the head chip are connected to a multilayer member having an insulating layer on one surface of which are formed the lead wirings for row A and on the other surface of which are formed the lead wirings for row B, and the lead wirings for row B are made to protrude outwards more than the lead wirings for row A and drive interconnections are electrically connected to the lead wirings for row A and the lead wirings for row B. | 11-19-2009 |
| 20090267988 | INK JET PRINTER - An inkjet printer, comprises a plurality of recording heads to jet ink onto a recording medium; an ink distributing device to distribute ink to the plurality of recording heads and having a damping action to the ink, the ink distributing device including, an ink chamber to store ink therein, an inlet section having an ink inlet port through which ink is fed from an outside into the ink chamber, and an outlet section having a plurality of ink outlet ports through which ink is discharged from the ink chamber; and a plurality of supplying pipes to distribute ink from the plurality of outlet ports to the plurality of recording heads. | 10-29-2009 |
| 20090011264 | NONAQUEOUS INK-JET INK AND INK-JET RECORDING METHOD - A nonaqueous ink-jet ink comprising at least solvents (A) and (B) cited below, a pigment, and a polymer compound, wherein the content of solvent (A) is 3-15% by weight based on the total weight of the ink-jet ink, and the content of solvent (B) is 50-90% by weight: Solvent (A): 1,3-dimethyl-2-imidazolidinone; Solvent (B): a solvent comprising at least one compound selected from the group consisting of the compounds represented by following Formulas (1) and (2): Formula (1) R | 01-08-2009 |
