LASER ENGRAVING RELIEF PRINTING PLATE ORIGINAL PLATE, RELIEF PRINTING PLATE MAKING METHOD, AND RELIEF PRINTING PLATE

摘要

PROBLEM TO BE SOLVED: To provide a laser engraving relief printing plate original plate high in engraving sensitivity, a relief printing plate making method using the same, and a relief printing plate.;SOLUTION: The laser engraving relief printing plate original plate includes, on a support, a relief forming layer containing at least one exothermic agent selected from the group composed of a hydrazide compound, a nitro compound, a nitroso compound, and a tetrazole compound (component A) and binder polymer where a glass transition temperature (Tg) is equal to or more than 20°C (compound B), and the content A of the component with respect to the total solid part of the relief forming layer is 1 to 20 mass%.;COPYRIGHT: (C)2012,JPO&INPIT