| 摘要 |
PURPOSE:To use one kind of image materials to form photosetting negative and positive pictures on respective metallic thin films of two composite base materials, by utilizing effectively a photopolymerized composite layer which is stuck and left on an exfoliated transparent supporting material and is not exposed to the light. CONSTITUTION:Image forming materials where a photopolymerized composite layer is provided on a transparent supporting material are used, and this photopolymerized composite layer is brought into contact closely with the metallic thin film of the first composite base material and is exposed to the light through an original from the side of the transparent supporting material, and the transparent supporting material is exfoliated to form a photosetting negative picture corresponding to the original on the metallic thin film. Next, the photopolymerized composite layer which is stuck and left on the exfoliated transparent supporting material and is not exposed to the light is brought into contact closely with the metallic thin film of the second composite base material and is exposed to the light, and the transparent supporting material is exfoliated to form a photosetting positive picture corresponding to the original on the metallic thin film of the second composite base material. |
