| 摘要 |
Prodn. of photopolymer plaques, used as printing plates in e.g. typography or flexography printing by submitting a photosensitive material to selective irradiation creating polymerised and non-polymerised zones. A sequential polymerisation is made of a liquid or solid photosensitive material; a first to produce the relief (6), and the second the plate (16). The material is irradiated from below. Also claimed are the plaques produced. |
