Fundamentally speaking, the printing process is the process of ink transfer, and the ink is mainly from the ink fountain, the ink fountain roller, the ink roller, the printing plate, the blanket, and the surface of the substrate. In this process, the effect of changes in printing speed on the ink is enormous.
The ink is output from the ink fountain and transferred by the ink fountain roller. After being squeezed, sheared, and torn between the rollers, the ink is quickly beaten. At the same time, a large amount of heat is generated. These heat increase the temperature of the ink and make it sticky. Decline and mobility. The faster the printing speed, the more heat is generated and the higher the ink temperature.
If the generated heat can not be taken away in time, then the ink at an excessively high temperature is reflected on the printed matter. The dot is blurry, unclear, and even the appearance of stencil, ink, etc., seriously affects the quality of the printed matter.