| 摘要 |
PURPOSE:To provide a photosensitive compsn. with which a water-developable flexographic printing material is obtd., and especially, the surface of particles can be easily designed and that the particle itself has good water resistance and the kneading in the production process of the plate is facilitated and which has good holding property for a solid printing plate and excellent developing property with water and storage stability of the plate by using a microgel resin having specified structure. CONSTITUTION:This compsn. contains 10-99 pts.wt. of resin particles having 0.01-5 average particle size and a core/shell structure in which at least the shell has a three-dimensional crosslinking structure (a), 1-90 pts.wt. of compd. having photoreactive groups (b), and 0.01-10 pts.wt. of photopolymn. initiator (c), in total 100 pts.wt. of (a), (b) and (c). |
