| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat sensitive lithographic printing plate, in which an image can be formed by the irradiation with lower energy laser beams than ever under the state that the diffusion of heat to an aluminum support is checked. SOLUTION: This heat sensitive lithographic printing plate is produced by laminating a heat insulating layer including heat expandable material and a heat sensitive layer, the solubility characteristics to alkali of which is improved by heat, in the order named on an aluminum or aluminum alloy support. |
