| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lithographic printing plate original plate which makes an image recording possible by an infrared laser, enables a large number of sheets of a good printed matter to be obtained by a practical energy amount, and has a good inking property as well, and to provide its manufacturing method. <P>SOLUTION: This lithographic printing plate original plate has an image recording layer which can be removed with water or an aqueous component, and an over-coating layer containing an inorganic layer-form compound on the supporting body in this order. In a range in a vicinity of the image recording layer by 0.001 μm or lower from the image recording layer side interfacial surface of the over-coating layer, the inorganic layer-form compound is substantially not contained. <P>COPYRIGHT: (C)2008,JPO&INPIT |
