| 摘要 |
PURPOSE:To obtain the dampening waterless photosensitive planographic printing plate which is improved in the flawing property of a silicone rubber layer and has excellent plate wear and reproducibility of large dots. CONSTITUTION:The silicone rubber layer of the dampening waterless photosensitive planographic printing plate having at least a photosensitive layer and the silicon rubber layer in this order on a base is cured by the crosslinking agent expressed by formula I. In the formula, X denotes a bivalent alkyl; Y denotes alkyl, carbonyl, hydrogen atom which may have a functional group. R denotes methoxy, ethoxy, methyl, ethyl which may be respectively the same or different; (n) denotes 1, 2; (m) denotes 3-n. |
