| 摘要 |
PURPOSE:To leave a corrected heated part on a film and to render an initial exposed image easily peelable from the film by forming a peelable coat contg. a diazo type photosensitive dye on one side of a transparent platic film, and forming a matted layer on the other side. CONSTITUTION:A peelable diazo photosensitive coat contg. a diazo type photosensitive dye and a vinyl chloride-vinyl acetate copolymer or the like as a binder is formed on one side of a transparent plastic base made of polyester or the like. A matted layer contg. a powder, such as silica or TiO2 powder, having an average particle diameter of 0.1-50mum is formed on the other side of the base opposite to the photosensitive coat to form a photosensitive film. Writing and correction with a pencil, ink, or the like is easy, and a sharp printed image is obtained. An intermediate original is corrected by using it, only the corrected part is left on the plastic film, and the diazo photosensitive image part is peeled, thus facilitating the separation of plates. |
