With a monochrome machine for color printing, loading and overprinting is a very important task. How do you quickly level the plate and guarantee registration with the previous color? In the offset printing production, the author summarized a method of marking and loading, which was introduced to everyone for reference.
First, level the front gauge of the offset press, ie manually jog a piece of paper to the impression cylinder to see if the impression cylinder has the same size. If not, adjust the front gauge to make it flat. Secondly, check whether the distance between the printing plate edge and the printing plate is the same. Finally, use the edge of the plate cylinder as the alignment line, and use a needle to draw a horizontal line on the edge of the plate, which is 3cm (J2108 machine). When loading the plate, make the horizontal line parallel to the edge of the plate cylinder. Not parallel, adjust the rinsing adjustment screw until it is parallel to the edge of the plate cylinder rinsing.
In accordance with the above-mentioned loading method, it is possible not only to increase the blindness of the clothing version, but also to increase the overprinting accuracy of the color printing, and also save the time of the school edition. Peers may wish to try.
Source: Printing Factory of Yueyang City, Hubei Province, Yang Hanlin