Identification of moisture content during printing

To identify the major moisture, we must first look at the layout of moisture. This depends on the operator's experience. In general, the moisture content is large, and the amount of reflected light on the plate is strong, and the side view is bright. On the contrary, the amount of reflected light on the plate is weak and the side view is dark. If the water is too large, it can be observed from the following points:

(1) Scoop the ink on the ink roller with a paper jam. Small water drops will remain on the paper.

(2) Small water droplets on the string water roller, deinking or water droplets in the ink roller group;

(3) After the water is turned off or the machine has been shut down for a long time, the water in the layout still has not dried up;

(4) The imprinted dots are empty and the ink is dull and dull;

(5) There are shadows or drops of water on the tail end of the blanket cylinder.

Source: HC Network