| 摘要 |
PURPOSE:To obtain a ruled paper where unnecessary rules are not copied even if the ruled paper is copied as it is, by using a plane meshed film consisting of several very narrow wires. CONSTITUTION:Desired rules are preliminarily described with solid lines on a solid line film 6. A plane meshed film 7 consists of several very narrow wires as shown in magnified figure. Rules of the solid line film 6 are exposed through the plane meshed film 7 to obtain a plate material 8 for printing. Thus, good rules are always printed on the plate material 8. |
