Skills To Be Mastered In The Operation Of Flat Screen Printing Machine


When encountering inconsistencies in the ink color of the printed product, the Stenter Machine operator should timely adjust the pressure of the water fountain roller

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    When encountering inconsistencies in the ink color of the printed product, the Stenter Machine operator should timely adjust the pressure of the water fountain roller, the pressure of the water roller and the printing plate, the pressure of the ink roller and the printing plate, and the pressure at both ends of the inking roller. During the printing process, the operator of the screen printing machine should pay attention to the "three levels", that is, the ink roller is flat, the water roller is flat, and the cylinder is flat. Only when the pressure of the water and ink rollers are within the normal range, can the ink color of the printed product be consistent.

 

    Screen printing machine operators need to be familiar with pre-press professional knowledge, understand gray balance, color management and other technologies, which are more conducive to printing operations; be familiar with the basic composition, performance and performance of raw and auxiliary materials such as paper, ink, fountain solution, printing plate, blanket, etc. The changing laws in the printing process can be taken before printing to avoid related failures.

 

    The screen printing machine operator must master the skill of ink and wash balance. When printing each job pre-adjusted ink, you should first reduce the amount of water. After printing the plate paper, when the printing speed is gradually increased, because the alcohol in the fountain solution evaporates quickly, it is easy to produce floating dirt at the mouth. The head of the printing press should check the printed products frequently and observe the middle position and both sides of the paper at the gripper. If there is scumming, increase the amount of water until the scumming disappears. When increasing the amount of water, increase the amount of ink until the ink is balanced. This is because if you only increase the amount of water without adding the ink, the ink will be diluted, resulting in the color of the printed product diminishing, and the ink color will not be consistent before and after.

 

    The operator of the Flat Screen Printing Machine should learn to observe the signal bar. During the printing process, the operator of the screen printing machine must always pay attention to the changes of the signal bar to ensure that the solid density on the signal bar is within the standard range, the gray balance is not color cast, and 80% of the dots are not stale. Qualified proofs.