| Patent application number | Description | Published |
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| 20090246693 | NEGATIVE-WORKING LITHOGRAPHIC PRINTING PLATE PRECURSOR AND METHOD OF LITHOGRAPHIC PRINTING USING SAME - A negative-working lithographic printing plate precursor is disclosed that can be developed on the press without going through a development processing step, and a method of lithographic printing is also disclosed that uses this negative-working lithographic printing plate precursor. Also disclosed are a negative-working lithographic printing plate precursor that can be developed by a water-soluble resin-containing aqueous solution and a method of lithographic printing that uses this negative-working lithographic printing plate precursor. A negative-working lithographic printing plate precursor is provided that exhibits an excellent fine line reproducibility in nonimage areas even when printing is performed using ultraviolet-curing ink (UV ink). Also provided is a negative-working lithographic printing plate precursor that exhibits an excellent combination of fine line reproducibility and printing durability and that resists the production of scum during on-press development. The negative-working lithographic printing plate precursor has a hydrophilic support and has thereon a photopolymerizable layer that contains a polymer compound that has the urea bond in the side chain position and a hydrophilic group. The method of lithographic printing uses this negative-working lithographic printing plate precursor. | 10-01-2009 |
| 20100055613 | NEGATIVE-WORKING LITHOGRAPHIC PRINTING PLATE PRECURSOR AND METHOD OF LITHOGRAPHIC PRINTING USING SAME - A negative-working lithographic printing plate precursor is disclosed that can be developed on the press without going through a development processing step, and a method of lithographic printing is also disclosed that uses this negative-working lithographic printing plate precursor. Also disclosed are a negative-working lithographic printing plate precursor that can be developed by a water-soluble resin-containing aqueous solution and a method of lithographic printing that uses this negative-working lithographic printing plate precursor. A negative-working lithographic printing plate precursor is provided that exhibits an excellent fine line reproducibility in nonimage areas even when printing is performed using ultraviolet-curing ink (UV ink). Also provided is a negative-working lithographic printing plate precursor that exhibits an excellent combination of fine line reproducibility and printing durability and that resists the production of scum during on-press development. The negative-working lithographic printing plate precursor has a support and has thereon a photopolymerizable layer that contains a polymer compound that has the urea bond in the main chain and a hydrophilic group and a carboxylic acid content less than 0.05 meq/g. The method of lithographic printing uses this negative-working lithographic printing plate precursor. | 03-04-2010 |
| 20100173248 | PLATE SURFACE TREATMENT AGENT FOR LITHOGRAPHIC PRINTING PLATE AND METHOD FOR TREATING LITHOGRAPHIC PRINTING PLATE - A plate surface treatment agent for a lithographic printing plate is provided that includes a vinyl copolymer containing a monomer unit having at least one group selected from the group consisting of a phosphonic acid group, a phosphoric acid group, a carboxylic acid group, and a salt of these groups and a monomer unit having at least one group or structure selected from the group consisting of a sulfonic acid group, a salt thereof, an amide group, and a betaine structure. There is also provided a method for treating a lithographic printing plate that includes a step of imagewise exposing a lithographic printing plate precursor, a step of processing using a developer, and a step of carrying out a plate surface treatment using the plate surface treatment agent for a lithographic printing plate. | 07-08-2010 |
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| 20080227026 | Lithographic printing plate precursor - A lithographic printing plate precursor having a good press life with a practical energy amount, which can be on-press developed without passing through a development processing step after recording an image by a laser of emitting an infrared ray, is provided, which is a lithographic printing plate precursor capable of performing a development and printing by loading on a printing press after imagewise exposure and supplying an oily ink and an aqueous component, the lithographic printing plate precursor comprising a support and an image recording layer, wherein the image recording layer comprises (A) a polymerization initiator, (B) a polymerizable monomer, (C) a binder polymer, and (D) a crosslinked resin particle having a reactive group or (F) a microcapsule containing a polymerizable monomer in the capsule wall, and the image recording layer is imagewise polymerization-curable upon irradiation of actinic ray. | 09-18-2008 |
| 20080229956 | ON-PRESS DEVELOPABLE LITHOGRAPHIC PRINTING PLATE PRECURSOR - A lithographic printing plate precursor, which is on-press developable by supplying an oily ink and an aqueous component, includes an image forming layer that has, in an exposed area thereof at 25° C., a water content change rate of 2.0 mass % or less when relative humidity is changed from 30% to 50%. | 09-25-2008 |
| 20080233516 | NEGATIVE LITHOGRAPHIC PRINTING PLATE PRECURSOR AND LITHOGRAPHIC PRINTING METHOD USING THE SAME - A negative lithographic printing plate precursor includes a support; and a photo-polymerization layer containing a polymer compound having at least one of a sulfonamido group and a cyclic structure derived from maleimide, and further having a hydrophilic group in a molecule thereof | 09-25-2008 |
| 20090022887 | Method for producing and handling of planographic printing plate precursor - A planographic printing plate precursor which prevents deformation and destruction of fine particles dispersed in an image forming layer thereof and has high developing performance and a high speed thin layer coating aptitude is provided. A method for producing and handling a planographic printing plate precursor having an image forming layer containing a photosensitive composition having fine particles dispersed therein is provided. The pressure acting on the image forming layer during or after formation of the image forming layer is 1.5×10 | 01-22-2009 |
| 20090246688 | NEGATIVE-WORKING LITHOGRAPHIC PRINTING PLATE PRECURSOR AND METHOD OF LITHOGRAPHIC PRINTING USING SAME - A negative-working lithographic printing plate precursor is disclosed that can be developed on the press without going through a development processing step, and a method of lithographic printing is also disclosed that uses this negative-working lithographic printing plate precursor. A negative-working lithographic printing plate precursor is provided that exhibits excellent on-press developability, nonimage area fine line reproducibility and printing durability and that resists the production of scum during on-press development. The negative-working lithographic printing plate precursor has a hydrophilic support and has thereon a photopolymerizable layer that contains at least one selected from the group consisting of a polymer compound that has an ethylenically unsaturated bond in the side chain position, a hydrophilic group and a sulfonamide group and a polymer compound that has an ethylenically unsaturated bond in the side chain position, a hydrophilic group and a cyclic structure derived from a maleimide. The method of lithographic printing uses this negative-working lithographic printing plate precursor. | 10-01-2009 |
| Patent application number | Description | Published |
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| 20080286685 | PLANOGRAPHIC PRINTING PLATE PRECURSOR AND PRINTING METHOD USING THE SAME - The invention provides a planographic printing plate precursor having at least: a support; and an image recording layer that is provided on the support, the image recording layer comprising: an infrared ray absorbing agent (A); a polymerization initiator (B); a polymerizable compound (C); and a compound (D) represented by the following Formula (I). | 11-20-2008 |
| 20090047601 | PLANOGRAPHIC PRINTING PLATE PRECURSOR AND PRINTING METHOD USING THE SAME - The invention provides a planographic printing plate precursor comprising: a hydrophilic support; and an image recording layer that is provided on the support, the image recording layer comprising: an infrared ray absorbing agent (A); a polymerization initiator (B); a polymerizable monomer (C); and a specific polymer compound (D) having an alkyleneoxy group in its molecule and having, in a side chain thereof at least one specific group. The invention further provides a printing method using the planographic printing plate precursor, wherein no specific development process is required for performing printing. | 02-19-2009 |
| 20090246696 | PLANOGRAPHIC PRINTING PLATE PRECURSOR AND PLATE MAKING METHOD USING THE SAME - The invention provides a planographic printing plate precursor having at least: a support; and an image recording layer that is provided on or above the support, the image recording layer containing at least: an infrared ray absorbing agent (A); a polymerization initiator (B); a polymerizable monomer (C); and a polymer compound (D) having, in a side chain thereof, at least one specific polymerizable functional group having a hydroxyl group; and following exposure of the planographic printing plate precursor, an unexposed portion of the image recording layer is removed with a gum solution. The invention further provides a plate making method including imagewise exposing the planographic printing plate precursor and developing the planographic printing plate precursor by processing the exposed planographic printing plate precursor with a gum solution so as to remove an unexposed portion of the image recording layer | 10-01-2009 |
