LITHOGRAPHIC PRINTING PLATE, METHOD AND EQUIPMENT FOR PLATEMAKING OF LITHOGRAPHIC PRINTING PLATE, PRINTING METHOD USING LITHOGRAPHIC PRINTING PLATE AND PRINTING MACHINE USING LITHOGRAPHIC PRINTING PLATE

摘要

PROBLEM TO BE SOLVED: To provide a lithographic printing plate which uses an inkjet ink curable by a specific activation energy beam and excels in printing quality and plate wear resistance, a method and equipment for platemaking of the lithographic printing plate and a printing method and a printing machine using the lithographic printing plate.;SOLUTION: The inkjet ink curable by the activation energy beam is discharged in the shape of an image by an inkjet recording method onto a substrate having a hydrophilic surface and then cured by exposure to the activation energy beam so as to prepare the lithographic printing plate. This inkjet ink contains radical polymerizable compounds of SP values of 8.00-8.50 and 9.00-10.00, each making up 10-50 mass%.;COPYRIGHT: (C)2007,JPO&INPIT