| 摘要 |
The invention provides a composition comprising a solid photopolymer e.g. a photopolymer resin, which is adapted to be curable in ambient light. Also included in the present invention are methods of making a photopolymer printing plate for use in e.g. stamp production. The solid photopolymer may be a liquid at temperatures above 50 degrees C and a gel at temperatures below 50 degrees C, and may be an unsaturated polyester resin, and unsaturated polyurethane resin etc. |
