| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an original plate for direct drawing type waterless lithographic printing which has excellent scratch resistance and printing durability and wide development latitude. <P>SOLUTION: The original plate for direct drawing type waterless lithographic printing has at least a heat insulating layer, a heat-sensitive layer, and a silicone rubber layer in this order on a substrate. The heat insulating layer contains at least polyurethane resin, an active hydrogen group-containing aromatic compound, and a metal chelate compound, the heat insulating layer contains 40 to 50% polyurethane resin for the total layer weight, and the ratio of the weight sum of the active hydrogen group-containing aromatic compound and metal chelate compound to the polyurethane resin in the heat insulating layer (polyurethane resin/(active hydrogen group-containing aromatic compound+metal chelate compound)) is 1.5 to 3.0. <P>COPYRIGHT: (C)2007,JPO&INPIT |
