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| Number | Title | Issue Date |
| 7214468 | Lithographic printing plate material and printing method A lithographic printing plate material is disclosed, comprising a flexible support having thereon a hydrophilic layer and an image forming layer, wherein the flexible support having the hydrophilic layer exhibits a transmission density of 0.5 to 1.2, and the outermo... | 05/08/2007 |
| 7171902 | Direct drawing lithographic printing plate material There is disclosed a direct drawing type lithographic printing plate material comprising a support and an image-forming layer formed on the support, wherein the image-forming layer is formed on a roughened surface of the support and contains a binder and a pigment h... | 02/06/2007 |
| 7134395 | Acid inkjet imaging of lithographic printing plates The present invention includes a method of preparing an inkjet ink imaged lithographic printing plate by imagewise applying an acidic inkjet ink onto a substrate coated with an inkjet ink reactive coating composition which is acid-catalyzed, to produce an imaged coa... | 11/14/2006 |
| 7123280 | Thermal transfer image receiving sheet and image forming method using the same A thermal transfer image receiving sheet comprising a support having an image receiving layer on one surface of the support and a backing layer on the other surface of the support, wherein, (a) a first electrical resistance of the thermal transfer image receiving sh... | 10/17/2006 |
| 7107905 | Printing plate material and printing process Disclosed is a printing plate material comprising a support and provided thereon, a hydrophilic layer containing pigment particles having a light-to-heat conversion capability, wherein the pigment particles have an average particle diameter of from 0.15 μm to less ... | 09/19/2006 |
| 7086333 | Printing plate material, process of folding the same, and printing process Disclosed are a printing plate material capable of being folded by heating, a printing process employing the printing plate material and a process of folding the printing plate material, the printing plate material comprising a support and provided thereon, an image... | 08/08/2006 |
| 7078152 | Lithographic printing with printing members having plasma polymer layers A plasma polymer layer facilitates selective removal of the imaging layer of a lithographic printing member, which allows for imaging with low-power lasers. The printing member can be used on press immediately after being imaged without the need for a post-imaging p... | 07/18/2006 |
| 7067232 | Printing Plate A printing plate for computer-to plate lithography having a laser-ablatable member supported by a substrate. At least one portion of the laser-ablatable member is formed form an acrylic polymer containing laser-sensitive particles. The laser-sensitive particles abso... | 06/27/2006 |
| 7041365 | Static dissipative optical construction An optical construction that is static-dissipative and includes a static-dissipative layer buried within optical material. ... | 05/09/2006 |
| 6997108 | Plate-making type printing press, multi-color printing press and plate-making type printing method The plate-making printing press is constructed by installing a plate-making apparatus in a printing press that supplies ink and dampening water to a printing plate and performs printing on a medium. In order to realize a high-precision plate-making operation, the pr... | 02/14/2006 |
| 6983693 | Method and substrate for the preparation of a printing plate The invention relates to a method for the preparation of a printing plate comprises forming an oleophilic image on a substrate for a printing plate comprising a support having at least one hydrophilic layer on its surface, the oleophilic image being formed by inkjet... | 01/10/2006 |
| 6933093 | Radiation sensitive coating composition useful for lithographic printing plates and the like The invention relates to a composition, which is primarily energy sensitive in the near infrared and infrared region, and which comprises a dual polymer system, an infrared absorbing material that absorbs at the desired wavelength, an acid generating compound, and, ... | 08/23/2005 |
| 6805052 | Printing system with a negative working thermal plate for onpress development A printing system making use of a lithographic printing plate has been disclosed, the system comprising the steps of image-wise exposing to infrared light a heat sensitive imaging element, the element being optionally present on the printing press before starting th... | 10/19/2004 |
| 6782824 | Printing unit with reversible image setting and digital changeover A printing unit for a rotary printing machine with reversible image setting and digital changeover by means of thermal transfer, having an image-setting unit, an erasing or cleaning component and at least one inking unit. In order to achieve further cost advantages ... | 08/31/2004 |
| 6772687 | Method for the preparation of a lithographic printing plate A method for the preparation of a negative working lithographic printing plate is disclosed. A printing plate precursor comprising a lithographic support and an image forming layer is mounted on a printing press. A liquid containing a dissolution inhibitor is image-... | 08/10/2004 |
| 6758140 | Inkjet lithographic printing plates A method for preparing lithographic printing plates comprising coating a substrate with a mixture including colloidal silica, fumed alumina, polyethylenimine, a quaternary ammonium polymer and a hardener; utilizing an inkjet printer with pigmented inks to print a di... | 07/06/2004 |
| 6739260 | Method for the preparation of a negative working printing plate A method for the preparation of a negative working lithographic printing plate by means of ink jet printing is disclosed. This method uses a lithographic printing plate precursor comprising a lithographic support and an image forming layer containing a polymeric bin... | 05/25/2004 |
| 6723492 | Lithographic printing plate precursor and method for the preparation of lithographic printing plate employing the same A lithographic printing plate precursor comprising a water-resistant support having provided thereon a light-sensitive layer containing fine titanium oxide grains doped with a metallic ion which absorb a visible ray and a complex composed of an organo-metallic polym... | 04/20/2004 |
| 6720130 | Radiation sensitive lithographic printing plate precursors having ablation-free imageable composition and method The present invention relates to a negative-working radiation imageable lithographic printing plate precursor, preferably having only two polymeric layers on a support. The first (bottom) layer is composed of oleophilic polymers and a photothermal converter which co... | 04/13/2004 |
| 6688228 | Planographic printing plate precursor having a support with pits Disclosed is a planographic printing plate precursor, comprising a hydrophilic support and an image forming layer containing oleophilic heat-fusible particles, wherein the hydrophilic support has voids and the void content is 20 to 40 ml/m2.... | 02/10/2004 |
| 6684785 | Lithographic imaging with printing members having multiphase laser-responsive layers The present invention provides a printing member having a single radiation-absorptive multiphase layer over a substrate layer that may be imaged with or without ablation.... | 02/03/2004 |
| 6672210 | Lithographic printing plate precursor with a graft polymerized hydrophilic layer A novel lithographic printing plate precursor is disclosed, comprising a crosslinked hydrophilic layer having a crosslinked structure and containing a hydrophilic polymer compound having a hydrophilic graft chain, provided on a support.... | 01/06/2004 |
| 6662723 | Computer-to-plate by ink jet A method for preparing a lithographic printing plate by means of ink jet printing is disclosed. The ink jet fluid contains an oleophilizing compound having in its chemical structure a boron containing group capable of reacting with the surface of a lithog... | 12/16/2003 |
| 6640713 | System and method for recording an image using a laser diode array An improved offset printing press has a single plate blanket image (PBI) cylinder for holding an image formed on a thin film printing plate affixed thereto. The plate may be from 0.5 to 25 microns thick and has a thin layer of ink repelling material coate... | 11/04/2003 |
| 6634295 | Lithographic printing plates and method for their preparation A method for the preparation of a lithographic printing plate comprises forming an oleophilic image on the surface of a hydrophilic support by depositing, preferably by ink-jetting, the desired image on the surface using an aqueous emulsion of an organic ... | 10/21/2003 |
| 6598526 | Lithographic printing plates for use with laser imaging apparatus Provided is a lithographic printing plate comprising a support substrate having disposed thereon an ablative-absorbing layer and, optionally, a durable, ink-accepting surface layer that is not ablative-absorbing. The ablative-absorbing layer may contain a... | 07/29/2003 |
| 6564713 | Printing plate, method for producing printing plate, reusing method for printing plate, and printing machine A method for making a printing plate including a step of forming a hydrophobic image area on at least a part of a hydrophilic surface of a plate. The plate surface contains a photocatalyst and the image area is formed by using an organic compound which is... | 05/20/2003 |
| 6564712 | Lithographic plate material There is provided a lithographic plate material with which a lithographic plate is prepared by the hot-melt transfer recording method utilizing an ink ribbon. The lithographic plate material has an image-receptive layer for hot-melt transfer recording tha... | 05/20/2003 |
| 6526886 | Computer-to-plate by ink jet A method for preparing a lithographic printing plate by means of ink jet is disclosed. In the ink jet fluid an oleophilizing compound is incorporated containing a 1,3-dicarbonyl group in its chemical formula.... | 03/04/2003 |
| 6523473 | Computer-to-plate by ink jet A method for preparing a lithographic printing plate by means of ink jet is disclosed. The ink jet fluid contains an oleophilizing compound chosen from the group consisting of a catechol, a pyrogallol, and a salicylic acid.... | 02/25/2003 |
| 6523472 | Computer-to-plate by ink jet A method for preparing a lithographic printing plate by means of ink jet printing is disclosed. The ink jet fluid contains an oleophilizing compound having in its chemical structure a phosphorous containing group capable of reacting with the surface of a ... | 02/25/2003 |
| 6520086 | Printing plates and a method for their preparation A method for the preparation of a lithographic printing plate comprises forming an oleophilic image on the surface of a hydrophilic support by depositing, preferably by ink-jetting, the image on the surface using an aqueous dispersion of an oligomer havin... | 02/18/2003 |
| 6513433 | Lithographic printing plate precursor A lithographic printing plate precursor comprising a hydrophilic support having thereon a heat-sensitive layer containing at least one of a thermoplastic particulate polymer having Tg of not lower than 60° C., a particulate polymer having a heat-reactive... | 02/04/2003 |
| 6508170 | Lithographic plate materials and method for making lithographic plates using the same There is provided a lithographic plate material which can be desensitized by distilled water or a fountain solution used for other lithographic plates, without desensitizing using an etching solution, and with less scumming in non-image portions of the pr... | 01/21/2003 |
| 6497178 | Lithographic printing members having secondary non-ablative layers for use with laser imaging apparatus Provided is a lithographic printing plate comprising a support substrate having disposed thereon a hydrophilic layer interposed between the substrate and an ink-accepting ablative-absorbing surface layer. The ink-accepting surface layer comprising a one o... | 12/24/2002 |
| 6479215 | Photosensitive resin plate for letterpress printing A water-developable, photosensitive resin plate for letterpress printing which comprises a photosensitive resin layer and a protective film contacting therewith, wherein the protective film consists of at least two layers, of which one is a surface layer ... | 11/12/2002 |
| 6477955 | Laser ablatable waterless lithographic printing member An improved offset printing press has a single plate blanket image (PBI) cylinder for holding an image formed on a thin film printing plate affixed thereto. The plate may be from 0.5 to 25 microns thick and has a thin layer of ink repelling material coate... | 11/12/2002 |
| 6474235 | Method of preparing a lithographic plate A method for preparing a lithographic plate which can react with an imaging fluid to form an image, including providing a hydrophilic support; forming a fluid-receiving layer that includes a water-soluble material which is chemically reactive with the ima... | 11/05/2002 |
| 6472055 | Direct drawing type lithographic printing plate precursor A direct drawing type lithographic printing plate precursor comprising a water-resistant support having provided thereon an image-receiving layer, the image-receiving layer containing: at least one metal oxide hydrate having an average particle size of fr... | 10/29/2002 |
| 6472054 | Method of preparing a printing plate and printing plate A printing plate is prepared by the method comprising: (a) providing a substrate; and (b) applying by ink jetting to the substrate a fluid composition comprising an acidic polymeric compound, in which the acid groups of the acidic polymeric compound are a... | 10/29/2002 |
