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| Number | Title | Issue Date |
| 5511477 | Method and apparatus for the production of photopolymeric relief printing plates A method and apparatus for direct production of photopolymeric printing plates. The method comprises forming a positive and/or negative image on a substrate by ink-jet printing with a photopolymeric ink composition, optionally preheated. The apparatus for... | 04/30/1996 |
| 5511479 | System and method for providing pin register holes in flexible printing plates and apparatus and method for aligning plates on a flexographic printing press plate cylinder A method for accurately drilling pin register holes in flexible printing plates for flexographic printing plate cylinders includes placing aligning pin hole location marks as a part of original artwork used for creating the printing plates. The pin hole l... | 04/30/1996 |
| 5495803 | Method of forming a photomask for a printing plate with an ink jet A method and apparatus for preparing a printing plate without the need for a photomask formed from a sheet of photographic film bearing the positive or negative of the image to be printed. According to the invention, an ink jet print head deposits ink ont... | 03/05/1996 |
| 5492059 | Offset printing form and process for the production thereof An offset printing form comprising at least one printing form made up of at least one driving plate which is of metallic material and cut to size. The printing plate having starting and ending printing edges that are connected with one another so as to fo... | 02/20/1996 |
| 5492057 | Method and apparatus for positioning at least one engraving head A system for locating a plurality of engraving heads on an engraver wherein a plurality of engraving heads are automatically positioned into a predetermined configuration. A mechanism for positioning the engraving heads preferably includes a leadscrew and... | 02/20/1996 |
| 5483890 | Direct applied embossing casting methods This invention relates to a method of creating a seamless printing master for use with an embossing roll to ultimately produce a textured wall or floor covering. A hardenable material is applied to the textured surface of a positive printing master sectio... | 01/16/1996 |
| 5467708 | Direct applied embossing casting method This invention relates to a method of creating a seamless printing master for use with an embossing roll to ultimately produce a textured wall or floor covering. A hardenable material is applied to the textured surface of a positive printing master. The e... | 11/21/1995 |
| 5462841 | Tone rendition of halfstone images by projection exposure A method for producing a reproduction in reduced or enlarged size of a halftone original with improved tone rendition by the use of a continuous tone correction mask in conjunction with the halftone original applied in projection exposure. It is a particu... | 10/31/1995 |
| 5456175 | Printing sheet making and printing apparatus In a printing sheet making and printing system applicable to for example an electronic gravure printing system a printing sheet is sheathed in a printing sheet jacket to prevent the adhesion of dust and the occurrence of scratching on its surface and the ... | 10/10/1995 |
| 5454315 | Method for producing a stamp A method for producing a stamp includes the following steps: (1) forming a stamp member from a rubber material which has a low rebound characteristic and low compressibility; (2) preparing a plurality of stamping inks of different colors, each of the stam... | 10/03/1995 |
| 5452658 | Pad transfer printing pads for use with contact lenses A room temperature vulcanized silicone pad which is used in pad transfer printing on contact lenses with a special opaque ink which has been approved by the FDA and which results in a longer life span, better print quality, improved adhesion of the ink, m... | 09/26/1995 |
| 5432534 | Reversible thermosensitive coloring composition, recording medium, recording method, and image display apparatus using the recording medium A reversible thermosensitive coloring composition is composed of (i) an electron-donor coloring compound and (ii) an electron-acceptor compound selected from the group consisting of an organic phosphoric acid compound, an aliphatic carboxylic acid, and a ... | 07/11/1995 |
| 5427026 | Press sheet engraving apparatus A press sheet engraving apparatus produces a press sheet by forming concavities on a synthetic resin sheet with a radiation of a laser beam on the synthetic resin sheet in response to image data. This press sheet engraving apparatus is comprised of a cyli... | 06/27/1995 |
| 5426588 | Method for engraving a gravure cylinder The present invention describes a method for engraving a gravure cylinder. The method includes determining the coverage of the liquid composition desired, and then selecting parameters including the stylus angle and compression angle. The channel width to... | 06/20/1995 |
| 5422958 | Printing cylinder engraver calibration system and method A system for calibrating engraving heads used for engraving gravure printing cylinders determines a mean cell volume for cells forme din a test cut in a printing cylinder. The system of the present invention includes a procedure of cutting two or more tes... | 06/06/1995 |
| 5419255 | Device for forming a printing pattern on a printing sleeve A device for creating a printing pattern on an endless form sleeve utilizes a pattern forming head that is cooperatively positioned with an outer surface of an endless, sleeve. The sleeve has an inner ply of a ferromagnetic material and is supported in pa... | 05/30/1995 |
| 5415479 | Postal bar code printing with engraved character impact printer An impact printing device for printing postal bar code patterns on an information carrier. The patterns are a combination of parallel tall and short bars separated by spaces. The type elements are attached to a movable type carrier, each element comprised... | 05/16/1995 |
| 5404807 | Three dimensional image formation process A three-dimensional image formation process and an image separating agent used therefor are provided. The process comprises the steps of passing a flowable image forming material through a perforated stencil sheet having a perforated image from one surfac... | 04/11/1995 |
| 5396841 | Letterpress printing plate having printing surfaces with a low surface tension, and method of making A letterpress printing method is disclosed wherein a printing plate, having plastic surface with a critical surface tension in the range of approximately 18-35 mN/m, is engraved or otherwise provided with raised ink-bearing impression sites and the printi... | 03/14/1995 |
| 5392711 | Method of manufacturing a printing plate The method which comprises the steps of producing a halftone dot photograph, producing a cut out photograph by cutting out a desired portion of the photograph, adhering the cut out photograph on a transparent film, printing the front side of this film on ... | 02/28/1995 |
| 5370052 | Method of controlling the quantity of printing ink and reconditioning used anilox rollers To maintain required or desired ink transfer capability of an anilox roller (6) after wear and tear caused, for example, upon engagement of the surface of the roller against a doctor blade (7a, 7b) of a chambered inking unit (7), the ink receptor depressi... | 12/06/1994 |
| 5370050 | Printing cylinder and endless sleeve A printing cylinder utilizes a magnetic surface to support a portion of a ferro-magnetic endless printing sleeve which has a circumferential length greater than that of the printing cylinder on which it is supported. A sleeve tightening assembly supports ... | 12/06/1994 |
| 5355793 | Method and apparatus for making a mimeographic printing plate A heat-sensitive material is used for making a mimeographic printing plate. The plate material includes a screen where printing ink is passable, and a resinous membrane formed on its surface. The resinous membrane is heated and melted so as to form a numb... | 10/18/1994 |
| 5351615 | Offset blanket for a grooveless blanket cylinder composed of a carrier plate and a rubber layer placed thereon An offset blanket for a grooveless blanket cylinder for applying a printed image onto web material or sheet material is composed of a carrier plate which has been cut to size and a rubber layer placed on the carrier plate. The beginning and the end of the... | 10/04/1994 |
| 5347927 | Anisotropic endless printing element and method for making the same An exemplary anisotropic printing element comprises an outer printing surface layer and, located radially beneath the outer layer, a spirally-integrated reinforced compressible tubular structure comprising a reinforcing sheet having synthetic fibers, the ... | 09/20/1994 |
| 5327825 | Seamless holographic transfer A method of making a die and the die itself for establishing through embossing or micro-embossing a seamless pattern, preferably a holographic pattern, on a decorative medium such as a metallized film is provided. A cylindrical embossing or micro-embossin... | 07/12/1994 |
| 5327831 | Printing press blanket cylinder assembly, mounting and dismounting subassemblies and method of using same A printing blanket cylinder assembly (14',16') with an exposed edge (60) at the end of an inwardly turned mounting member (30M, 34M) protectively enclosed within a mounting slot (32) within a blanket cylinder (16) while an outer layer (40) of the blanket ... | 07/12/1994 |
| 5301610 | Method and apparatus for making spiral wound sleeves for printing cylinders and product thereof A printing sleeve for a flexographic printing process is prepared by spirally winding successive adhesive coated tapes onto a forming mandrel such that the outer tape covers the seam in the previous layer, providing heat to the thermoplastic adhesive laye... | 04/12/1994 |
| 5293426 | Printing cylinder engraver calibration system and method A system for calibrating engraving heads used for engraving gravure printing cylinders determines a cell volume for cells formed in a test cut in a printing cylinder. The system of the present invention includes a procedure of cutting two or more test cut... | 03/08/1994 |
| 5278027 | Method and apparatus for making print imaging media A method and associated apparatus for forming an image replication medium on a surface of a printing plate or cylinder in which the surface is initially coated with a layer of photopolymer liquid. Thereafter, selected areas of the layer of liquid coated o... | 01/11/1994 |
| 5277721 | Method for making microporous marking structures A method for preparing a microporous ink-impregnated marking structure according to the invention involves use of a window-like frame instead of a conventional chase. The frame is placed on the upper face of the matrix board or mold so that the premix, co... | 01/11/1994 |
| 5275919 | Process for making photosensitive resin printing plate and plate-making apparatus used therefor A photosensitive resin printing plate which can provide printed matter with good ink coverage and little dot gain, and a plate making apparatus used therefor.... | 01/04/1994 |
| 5266257 | Method of making embossing rolls having indicia An embossing roll is formed by a process which includes molding a seamless embossing roll within a seamless sleeve. The sleeve has indicia disposed about the inner circumference and which is then reverse molded into the roll.... | 11/30/1993 |
| 5266426 | Photocured resin relief plate A photocured resin relief plate comprising a relief layer comprising base layer A and top layer B formed by photocuring and arranged in this order, in which the thickness of the relief layer at a highlight portion constituting a pattern having a dot perce... | 11/30/1993 |
| 5259311 | Laser engraving of photopolymer printing plates A method for laser engraving photopolymer printing plates is provided. Prior to the laser engraving step (30), the photopolymer material is totally cured, followed by removal of a release layer disposed on the material. The laser engraving step (30) which... | 11/09/1993 |
| 5253579 | Rubber stamp, manufacturing device therefor, and method of manufacture therefor A cushion layer 92 made of plastics or rubber is fixed on a stamp body 90, on which a peelable layer 94 having a certain thickness and formed by a rubber having a glass-transition temperature higher than -50 degrees Celsius, is temporarily fixed, and furt... | 10/19/1993 |
| 5252428 | Photoresin relief printing plate A photoresin relief printing plate comprising a support and a photoresin relief portion disposed thereon, said relief portion having a thickness of not greater than 8 mm and comprising an upper photoresin layer and a lower photoresin layer, wherein said u... | 10/12/1993 |
| 5247884 | Methods and apparatus for forming printing cylinders, and the resulting ballard shells and printing rolls A method of forming a Ballard shell on a rotogravure printing roll or the like. At least one of the side surfaces of a roll base is covered with a removably fixed, adhering, concentric, annular disk which remains in place and limits the radial extent of p... | 09/28/1993 |
| 5247883 | Apparatus for making a printing plate and a printing plate thereof An apparatus for making a printing plate in which a printing plate made of a thermoplastic resin sheet is wrapped around a plate cylinder and a laser beam from a laser source is irradiated on the printing plate to form holes in accordance with image infor... | 09/28/1993 |
| 5182990 | Method of reducing printing artifacts A method of reducing printing artifacts in a printing apparatus including a plurality of printing plates, each of which is produced by successive scans of an array of imaging devices wherein the printing artifacts are caused by defective operation of one ... | 02/02/1993 |
