Screen printing, like other printing, needs to accurately reproduce the text and tone of the original. In principle, the original used in screen printing is not very different from that used in other printing methods, but its requirements are different in specific plate making and printing practice, which is mainly determined by the characteristics of screen printing. In particular, due to the thick ink layer and bright color of screen printing, the special effect of screen printing should be fully considered when selecting the original and plate making.
In addition, the requirements of graphic lines and dot accuracy of the original used in screen printing are also different from those used in ordinary printing methods. If the lines and dots of the original are very fine, it is very difficult to make a plate by screen printing. Therefore, screen printing technology is not suitable for reproducing the original with fine lines and dots. The characteristics of various printing methods should be fully considered when selecting printing methods. Even in screen printing plate making, we should also pay attention to the selection of appropriate screen cable in order to fully reproduce the original.
Screen printing is more suitable for monochrome chromatic originals with bright words and lines, as well as color originals with large contrast and clear layers. Through the special effect of screen printing, the replica has rich expressiveness, and fully expresses the texture and three-dimensional effect of the original content through rich and thick ink layer and color contrast.
There are two kinds of screen printing photographic plate making originals: Reflection original and transmission original. Usually, reflection original is mainly used. Most color photography uses transmission originals.
Screen printing mainly uses positive pictures to make screen printing. Different plate making methods have different requirements for originals.
