| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 430309000 | Post imaging process | 8 |
| 20080311525 | Method of Making a Photopolymer Printing Plate - A method of making a lithographic printing plate includes the steps of: a) providing a lithographic printing plate precursor including (i) a support having a hydrophilic surface or which is provided with a hydrophilic layer, (ii) a coating on the support including a photopolymerizable layer, and, optionally, an intermediate layer between the photopolymerizable layer and the support, wherein the photopolymerizable layer includes a polymerizable compound and a polymerization initiator, b) image-wise exposing the coating in a plate setter, c) optionally, heating the precursor in a pre-heating unit, d) developing the precursor off-press in a gumming unit by treating the coating of the precursor with a gum solution, thereby removing the non-exposed areas of the photopolymerizable layer from the support, wherein the photopolymerizable layer further includes a polymer containing an acid group and a basic nitrogen-containing compound capable of neutralizing the acid group, or wherein the photopolymerizable layer further includes a polymer containing an acid group which is neutralized by a basic nitrogen-containing compound. | 12-18-2008 |
| 20100273108 | METHOD FOR PRODUCING REGENERATED POROUS SHEET - The present invention provides a method for producing a regenerated porous sheet including a step of bringing a porous sheet which has adsorbed an uncured part of a photosensitive resin, into contact with a solvent to separate the uncured part from the porous sheet, the porous sheet that has adsorbed the uncured part being produced by curing a specific area of a printing surface of a printing original plate in which the printing surface is formed from a photosensitive resin, and then absorbing the uncured part of the printing surface into a porous sheet, so as to conduct a development. | 10-28-2010 |
| 20110300486 | DIRECTLY IMAGEABLE WATERLESS PLANOGRAPHIC PRINTING PLATE PRECURSOR AND METHOD FOR PRODUCING SAME - A directly imageable waterless planographic printing plate precursor includes at least a heat sensitive layer and a silicone rubber layer formed on a substrate in this order and has a high sensitivity not only immediately after the precursor production but also after the passage of time. In the directly imageable waterless planographic printing plate precursor, the heat sensitive layer contains liquid bubbles filled with a liquid with a boiling point in the range of 210 to 270° C. A production method comprises applying a solution of a heat sensitive layer composition containing a solvent with a solubility parameter of 17.0 (MPa) | 12-08-2011 |
| 20130004897 | METHOD FOR MANUFACTURING A PLANOGRAPHIC PRINTING PLATE - A method of manufacturing a planographic printing plate is provided in which, even when an alkaline developer having a relatively low pH is used, the development property is excellent and the generation of development scum over time is inhibited. The manufacturing method includes, in this order: subjecting a positive-working planographic printing plate precursor having an image recording layer on a support to imagewise light exposure, the image recording layer including a lower layer containing an infrared absorbing agent, an alkali-soluble resin, and a copolymer at least including a structural unit derived from acrylonitrile and a structural unit derived from styrene, and an upper layer containing a water-insoluble and alkali-soluble resin; and developing the positive-working planographic printing plate precursor after the light exposure by using an aqueous alkali solution which has a pH of 8.5 to 10.8 and contains an anionic surfactant. | 01-03-2013 |
| 20130260317 | METHOD OF PRODUCING A PLANOGRAPHIC PRINTING PLATE - A method for producing a planographic printing plate is provided, which includes: subjecting a planographic printing plate precursor to image-wise exposure, wherein the precursor includes plural recording layers at least one of which contains (A) an infrared absorbing agent on a support, the upper recording layer contains (B) a water-insoluble and alkali-soluble polymer compound having a repeating unit containing a fluoroalkyl group or a siloxane structure; and developing the precursor using an alkali developer containing (C) an ammonium salt compound represented by Formulae (C-1) to (C-3), wherein R | 10-03-2013 |
| 20140234778 | METHOD FOR RECYCLING PLATE-MAKING PROCESSING WASTE SOLUTION - A method of recycling waste liquid from a plate-making process, including: performing a plate-making process using a development replenisher liquid that includes at least one selected from the group consisting of anionic surfactants having a naphthalene skeleton and nonionic surfactants having a naphthalene skeleton at a total content of from 1% by mass to 10% by mass, includes no or not more than 2% by mass of organic solvent having a boiling point of from 100° C. to 300° C., and has a pH of from 10 to 13; concentrating, by evaporating, the discharged plate-making process waste liquid, such that the ratio of the volume of the plate-making process waste liquid after concentration to the volume of the plate-making process waste liquid before concentration is within a range of from 1/10 to 1/2, thereby separating water vapor; and using the obtained regenerated water as diluent water and/or rinse water. | 08-21-2014 |
| 20160033868 | METHOD FOR PRODUCING A PLANOGRAPHIC PRINTING PLATE - Provided is a method of producing a planographic printing plate, including: subjecting a planographic printing plate precursor, which has a support and a positive-working image recording layer, to image-wise exposure; and developing it using an alkaline aqueous solution which contains a specific compound and has a pH of from 8.5 to 10.8, in this order. The recording layer has: a lower layer containing a water-insoluble and alkali-soluble resin and an infrared ray absorbing agent; and an upper layer containing a water-insoluble and alkali-soluble polyurethane resin and a polyorganosiloxane. The specific compound is a nonionic or anionic surfactant, or at least one compound represented by Formula (1) or (2), wherein R | 02-04-2016 |
| 20160054654 | METHOD FOR PRODUCING A PLANOGRAPHIC PRINTING PLATE - Provided is a method of producing a planographic printing plate, including: subjecting a planographic printing plate precursor, which has a support and a positive-working image recording layer, to image-wise exposure; and developing it using an alkaline aqueous solution which contains a specific compound and has a pH of from 8.5 to 10.8, in this order. The recording layer has: a lower layer containing a water-insoluble and alkali-soluble resin and an infrared ray absorbing agent; and an upper layer containing a water-insoluble and alkali-soluble polyurethane resin and a polyorganosiloxane. The specific compound is a nonionic or anionic surfactant, or at least one compound represented by Formula (1) or (2), wherein R | 02-25-2016 |
