| 摘要 |
PURPOSE:To make it possible to easily manufacture a printing plate at a reasonable price by superimposing a carbon paper having carbon applied thereon on a sheet material, making the carbon adhered to the sheet material and forming a desired image on the sheet material. CONSTITUTION:A flash printing apparatus 4 is placed at a position where an image should be formed on a printing sheet 7 in such a manner that a surface of a thermal ink layer 6c of an ink sheet 6 is held in contact with a surface of a printing sheet 7. Then, a discharge lamp 5c is turned on and generates a flash. The flash is condensed by a reflector, so that a large part of the flash is transmitted outwardly through a transparent plate 5d provided below a lower opening of a light source room 5a to irradiate an original printing plate 2. Then, heat generated in an original carbon image Io is transmitted to the thermal ink layer 6c of the ink sheet 6 from the reflecting layer 6b, held in contact with the original carbon image Io through the base film 6a. Then, only a thermal ink layer 6c1 thus heated as above is melted and is heat-transferred onto the printing sheet 7 thereunder under pressure, thereby making it possible to easily manufacture a printing plate. |
