| 摘要 |
Lithographic imaging using non-ablative printing members combines the benefits of simple construction, the ability to utilize traditional metal ba se supports, and amenability to imaging with low-power lasers that need not impart ablati on- inducing energy levels. A representative printing member has a hydrophilic metal substrate and, thereover, first and second layers. The first layer has a thickness and an exposed surface and comprises a material that absorbs imaging radiation. The second layer overlies the first layer and is oleophilic and substantial ly transparent to imaging radiation. Exposure to imaging radiation causes the first layer and the substrate to irreversibly detach without substantial ablation, thereby facilitating removal, by subjection to the cleaning liquid, of the first and second layers where detachment has taken place. |
