Abstract: The present invention relates to a curing epoxy resin composition permitting water repellent and ink repellent surface treatment. The epoxy resin composition contains (A) an alkylsiloxane-containing epoxy resin, (B) a cationic polymerization catalyst, and (C) a polyfunctional epoxy compound having a molecular weight of 300 or more, and a static viscosity of 1,000 cps or more at 25° C.

Abstract: A liquid jet printing head includes a discharging outlet for discharging printing liquid, an energy generating element capable of generating an energy for discharging said liquid through said discharging outlet and a discharging outlet face at which said discharging outlet is arranged, characterized in that said discharging outlet face has a water repellent material layer comprising fine particles of an inorganic material distributed in a water repellent resin in a desired distribution state. A liquid jet printing apparatus provided with said liquid jet printing head.

Abstract: A method for producing an ink jet recording head comprising the following steps, a step which forms the photosensitive water-repellent processing layer in the ink discharge port face, a step which irradiates light onto the water-repellent forming region and hydrophilic forming region in the water-repellent processing layer, to cure the layer, a step which irradiates light selectively onto the hydrophilic forming region to reduce water repellency of the water-repellent processing layer and to impart hydrophilicity to the hydrophilic forming region, and a step which forms an opening, which constitutes part of the ink discharge port, in the water-repellent processing layer.

Abstract: The fluorine-containing epoxy resin composition of the present invention comprises a fluorine-containing epoxy resin having in one molecule at least one perfluoroalkyl group having 6 to 12 carbon atoms and at least two alicyclic epoxy groups, and a cationic polymerization catalyst.

Abstract: A fluorine-containing epoxy resin composition comprising a fluorine-containing aromatic epoxy resin having in one molecule at least one perfluoroalkyl group having 6 to 12 carbon atoms and preferably at least two epoxy groups, a cationic polymerization catalyst, and optionally a compatibilizing agent having an epoxy group and a fluoromethyl group is coated on discharge openings of an ink jet recording head, followed by exposure to activation energy rays in a given pattern form to form cured coatings with a desired pattern so that the discharge openings can be endowed with ink repellency.

Abstract: A method of producing an ink jet recording head, in which a discharge port surface provided with a discharge port, through which ink is discharged, is provided comprises a conductive treatment step of carrying out a conductive treatment of the discharge port surface in a state where a material is present in the portion of the discharge port, a removing step of removing the material to open the discharge port, and an electrolytic deposition step of electrolytically deposit a water repellent material in the conduction-treated region of the discharge port surface.

Abstract: The fluorine-containing epoxy resin composition of the present invention comprises a fluorine-containing epoxy resin having in one molecule at least one perfluoroalkyl group having 6 to 12 carbon atoms and at least two alicyclic epoxy groups, and a cationic polymerization catalyst.

Abstract: A resin composition comprising a fluorine-containing aliphatic epoxy resin having in one molecule at least one perfluoroalkyl group having 6 to 12 carbon atoms and at lest two epoxy groups, a cationic polymerization catalyst, and optionally a compatibilizing agent having an epoxy group and a fluoromethyl group is applied to a discharge opening surface of an ink jet recording head, followed by irradiation with an activation energy ray in a given pattern to form a cured film in a desired pattern, so that the discharge opening surface is endowed with ink repellency.

Abstract: The invention is directed to provide a method for producing an ink jet recording head, which is free from the problems produced by an inexpensive system, and excellent in discharge stability.

Abstract: A liquid jet printing head includes a discharging outlet for discharging printing liquid, an energy generating element capable of generating an energy for discharging the liquid through the discharging outlet and a discharging outlet face at which the discharging outlet is arranged, characterized in that the discharging outlet face has a water repellent material layer with fine particles of an inorganic material distributed in a water repellent resin in a desired distribution state. A liquid jet printing apparatus is provided with the liquid jet printing head. The liquid jet printing head enables one to always perform stable ink discharging thereby providing high quality printed images.

Abstract: An output apparatus which produces the print output by saving in a first memory print data input via a two-way interface, and converting the print data into the print out information, comprising a second memory different from the first memory for saving the print data with a print ID number added which is input via the interface, a retrieving unit for retrieving corresponding print data of the second memory based on a print ID number input from the outside, and an output unit for outputting the retrieved print data converted into the print out information.

Abstract: An ink tank for a recording device that has good transparency and with which an ink cartridge is mounted provides good printing without causing any printing disturbances even when the ink cartridge is placed under various environmental conditions. The ink tank is molded from a polypropylene or polyethylene composition containing hydrotalcite (basic aluminum magnesium carbonate) as a neutralization agent and certain sorbitol derivatives as a nucleating agent.

Abstract: When liquid for recording such as ink is accumulated around ejection ports deviations in ejecting (flying) directions of ink droplets ejected from ejection ports in an ink-jet recording head are observed so that recording results of high quality can not be attained any more. In order to prevent such deviations water-repellent treatments have been employed. The present invention provides a means with a simple ink-jet recording head manufacturing procedure enable to provide an ink-jet recording head at a low cost. In order to provide such ink-jet recording head the following method is proposed.

Abstract: A process for producing a liquid-jet recording head comprises the steps of providing a solid layer of a photosensitive material in a pattern of a liquid path on a substrate, providing at least a portion of a liquid path forming material on the substrate having the solid layer, and removing the solid layer from the substrate, wherein the solid layer is removed by use of at least one of methyl lactate, ethyl lactate, and butyl lactate, or a solvent which contains as a main component at least one of methyl lactate, ethyl lactate, and butyl lactate.

Abstract: A process for producing an ink jet head comprising a liquid-discharge energy generating element for discharging a liquid, a discharge opening, a liquid-flow path, and a substrate for holding the liquid-discharge energy generating element, the process comprises the steps of: preparing the substrate; providing on the substrate the liquid-discharge energy generating element; providing a solid layer with a convex shape on the surface of the substrate where the liquid-discharge energy generating element has been provided and at the part where the liquid-flow path and the discharge opening are to be provided, the solid layer being formed of a resin capable of being dissolved away; applying on the substrate provided with the solid layer a curable material in a thickness larger than the thickness of the solid layer, to cover the solid layer; curing the curable material; evenly removing the cured material until the convex portion of the solid layer is laid bare; and dissolving away the solid layer to form the liquid-f

Abstract: A process for producing an ink jet head comprises the steps of providing a substrate provided with a liquid discharge energy-generating portion, forming a photosensitive resin layer on the substrate, patterning the photosensitive resin layer into a liquid flow path pattern to form a solid layer for forming a liquid flow path on the substrate, covering the solid layer with a liquid flow path wall construction material composed of a curable resin on the substrate, curing the liquid flow path wall construction material, and removing the solid layer by dissolution to form a liquid flow path, wherein the liquid flow path wall construction material comprises an epoxy resin composition containing an epoxy addition-modified aromatic amine curing agent.

Abstract: An ink jet head, characterized by having a sealing member formed of a composition comprising a solvent-free one-component silicone-modified epoxy resin in the liquid state at room temperature as a principal component, said composition containing, other than said silicone-modified epoxy resin, a latent hardener, wherein said silicone-modified epoxy resin comprises a silicone component in an amount of 10 to 60 parts by weight versus 100 parts by weight of a starting epoxy resin. And ink jet apparatus which is provided with said ink jet head and a recovery means for said ink jet head. The ink jet head always performs stable ink discharging to provide a high quality print.

Abstract: An ink tank cartridge having ink-storing part for storing ink to be supplied to a recording head which ejects ink in droplets and being mountable to and demountable from a recording apparatus, the ink tank cartridge comprises a main body of a container constituting the ink-storing part; an ink-absorbent held in the main body of the container for storing the ink; an ink-supplying part for supplying the ink to the recording head; and an air communication part to communicate the interior of the main body of the container with the air, the air communication part having a large-diameter opening capable of opening the interior of the main body of the container to the outside and being provided with a plug member having a fine opening attachably to and detachably from the large-diameter opening.

Abstract: A method for surface treatment of an ink jet recording head, having the step of transferring a surface treating agent provided on a support to the ink discharging opening surface having ink discharging openings of an ink jet recording head formed thereon from said support.

Abstract: A manufacturing method for manufacturing a liquid jet recording head comprises the steps of: forming a solid layer having a pattern of a liquid path communicating with a discharge port through which a liquid is discharged on a substrate; coating the solid layer with a curable material including a micro-capsuled curing agent; curing the curable material by mixing the micro-capsuled curing agent into a main agent of the curable material; and forming a wall of the liquid path comprised of the cured curable material and the substrate by removing the solid layer.