| 摘要 |
<p>Photosensitive plates for the preparation of relief printing plates, which photosensitive plates have a mat or grained surface on the photosensitive material. Novel process for the preparation of the mat or grained surface which comprises causing the photosensitive material to take the configuration of a grained or mat surface of another material, for example, a grained metallic plate or a mat finish plastic film. e.g., polyester film, or paper which has a mat finish surface. The light-sensitive material may be solvent-coated onto the mat or grained surface of the other material, dried and then the surface of the photosensitive material away from the side of contact with the mat or grained surface material may be laminated to a support which ultimately is used for mechanical support of the relief image in the exposed and developed plate and also for lock-up of the plate on the press.</p> |
