| 摘要 |
PURPOSE:To allow administration from plate making to printing with one mark by making the total of the opposite dot ratios of the sectorial dot parts divided to an annular shape into 100% and forming patterns for discriminating unequal printing at the center. CONSTITUTION:The color ball film 1 is formed by dividing the dot part to the plural sectorial shapes, combining the divided sectorial dot parts 4A to 4H to1 100% total of the dot ratios of the opposite sets and forming the patterns 5 for identifying the unequal printing at the center. A stripping operation is executed by mounting the color ball film 1 and the exposing state in the dot parts of the color ball 1 is measured with a dot meter at the time of a returning operation. The total of the dot ratios is disposed in 100% at this time and, therefore, the immediate discrimination of the % dot in which part is possible and the workability is greatly improved. Since the adequateness or not is immediately known by observing the patterns 5 for the discrimination at the time of proof printing, the administration from the plate making to the printing is possible with one film. |
