| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lithographic printing original plate which enables platemaking corresponding to a method of direct image drawing by heat, brings about no liquid waste on the occasion and excels extremely in the operability in a bright room and particularly in the plate wear resistance in printing, in regard to a platemaking technique for a lithographic printing plate. <P>SOLUTION: In the lithographic printing plate constituted by providing on a substrate a layer changeable to be hydrophobic by heat and a hydrophilic layer as the outermost layer, the layer changeable to be hydrophobic contains an organic polymeric compound having a glass transition point of 20°C or above. <P>COPYRIGHT: (C)2007,JPO&INPIT |
