| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an original plate for a planographic printing plate, which is excellent in handling performance, because adhesion between an outermost surface, on the backside of a substrate, of the original plate for the planographic printing plate and an outermost surface, on the side of a negative recording layer, of an adjacent original plate for the planographic printing plate can be lowered, even if the original plates for the planographic printing plate are stacked for storage and carrying in a state wherein a slip sheet is not sandwiched in between, a stacked body of the original plates for the planographic printing plate, wherein the original plates for the planographic printing plate are stacked, wherein the original plates for the planographic printing plate are laminated, and a plate making method using the stacked body. <P>SOLUTION: In this original plate for the planographic printing plate, the negative recording layer, which contains at least a compound producing a radical by light or heat, a polymerizable compound and a radiation absorber, is provided on the surface of a hydrophilic aluminum substrate. The original plate is characterized in that a Bekk smoothness value of the outermost surface on the backside of the aluminum substrate is 1,000 seconds or less. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
