what is the printing principle of printing machine? printing machine is a printing machine used for printing. there are mainly three types of stone printing machine, offset printing machine and cosco printing machine, mainly offset printing machine. lithography was developed on the basis of early lithography. after stone grinding, early lithography was used, and then it was improved to a metal zinc plate or aluminum plate, but the principle of the printing machine remained unchanged.
any printing machine has no difference in height between the printed part and the non-printed part, that is, it is flat, and the principle of water and oil is not mixed to make the printed part maintain a layer of oily film, not the layout on the printed part it can absorb the appropriate moisture. it is assumed that after the ink on the plate, the printed part will repel the water and absorb the ink, while the non-printed part absorbs the moisture to form the ink resistance. the method of printing using this method is called lithography.
after the development of lithography from early lithography, the printing machine platemaking and printing have the unique personality of the printing machine, and at the same time, the process is also very simple and the cost is low. therefore, it has been continuously researched and improved by experts in modern times. the most used method.