| 摘要 |
PROBLEM TO BE SOLVED: To improve scumming properties and sensitivity by forming a silicone rubber layer on a lower layer of an ink acceptive heat-sensitive layer and using a metal film of low melting point as the ink acceptive heat-sensitive layer. SOLUTION: When an ink acceptive heat-sensitive layer is formed on a silicone rubber layer provided on a base and a direct drawing type waterless lithographic printing original plate is constituted, the ink acceptive heat-sensitive layer is formed by a metal film. the ink acceptive heat-sensitive layer is a metal film having a melting point of 930K or lower. As for the metal, anyone of tellurium, tin, antimony, gallium, magnesium, polonium, selenium, tarium, zinc and bismuth is used. The scumming properties and sensitivity can be improved by the arrangement. |
