调频加网地图印刷阶调复制特性研究(英文)

Research of Reproduction Characteristic Based on FM Screening Map Printing

目前地图印刷广泛采用调幅加网对原稿进行处理,其阶调复制特性和印刷技术已非常成熟。但由于调幅加网存在一定的缺陷,印制的地图存在诸如线条锯齿感、龟纹、阶调层次表现不佳等问题。调频加网能在一定程度上解决这些问题,但其用于地图印刷时的阶调复制特性和规律,目前只有定性分析,没有定量研究,还不能广泛应用于生产实践。本研究在实验基础上,以调频加网为研究对象,通过制版、印版线性化、印刷成图、网点增大补偿等手段,探索了调频加网地图印刷的阶调复制特性和规律,具有一定的实践指导意义。

Nowadays, AM screening is widely used to process manuscripts in map printing. Its reproduction characteristic and the printing technology are relatively ripe. However, AM screening map printing has some flaws like line sawtooth, moirr, undesirable gradation, etc. To some extent, FM screening can solve these problems. But up till now, the research of its reproduction characteristic and principle have been limited within qualitative analysis while there is no quantitative research. Therefore, it can not be applied in production. In this study, take FM screening as the research object, the reproduction characteristic and principle of FM screening map printing were rcsearched using the methods of plate making, plate linearization, map printing and dot gain compensation, etc. It will be of practical significance.