A water-developable photo-polymerizable composition is disclosed, together with a printing plate prepared therefrom. The photo-polymerizable composition comprises a copolymer of an α,β-ethylenically-unsaturated carboxylic acid and a vinyl monomer, a vinyl compound having a secondary or tertiary nitrogen atom, an ethylenically-unsaturated monomeric compound, and a photosensibitizer. Printing plates prepared from the composition are water-developable and also water-resistant following developing.
本发明公开了一种可在
水中显影的光聚合组合物,以及用其制备的印版。这种可光聚合组合物包括一种 α、β-
乙烯基不饱和
羧酸和
乙烯基单体的共聚物、一种具有二级或三级氮原子的
乙烯基化合物、一种
乙烯基不饱和单体化合物和一种光敏剂。用该组合物制备的印版可用
水显影,显影后也具有防
水性。