Construction machinery decal manufacturers tell you how to deal with template contamination in the printing process?

The construction machinery decal manufacturer tells you how to deal with template contamination in the printing process:

In order to make the grid work normally, attention should also be paid to clean ink or bearing dirt. Due to electrostatic adsorption of pollutants in the air and poor storage conditions, the bearing surface will be contaminated. The above problems can be solved by improving storage conditions and process control. In addition, the use of static appliances and bearing decontamination devices can also prevent the transfer of dust from the bearing surface to the grid.

What if the template is contaminated?

With a platform screen press, you print a set of printers, stop the printer, and then enter a sheet of blotting paper so that the screen is in contact with the blotting paper. Leave the screen in the printing position, then wipe the stencil with a soft non-friction cloth dampened with screen cleaner. Do not apply too much force so that dirt will fall through the net onto the absorbent paper below, which can be used to repeatedly clean the net if necessary. Some of the dirt particles that fall on it may be too large to flush through the net, but can be stuck with a soft cloth. After cleaning, you can use a hair dryer (adjusted to "cold air") to dry the template. The main cause of stencil contamination is improper ink control, resulting in dry ink remaining in the mesh. When solvent or water-based inks are used, the reason is that the ink is sparse or too thick. When adjusting the ink, additives should be added according to the prescribed dosage.

In addition, a small amount of pre-adjusted ink should always be added to the printing production to keep the ink state unchanged. In the use of UV curable ink, should try to avoid ultraviolet radiation screen, also to avoid sunlight exposure.

Another ink control problem is related to improper printing speed control. Improper speed control of the automatic or manual operation of the press can result in uneven supply and rapid drying of ink-deficient networks.

The last cause of ink drying is improper adjustment of ink scraper or wear. When printing fine images with a high number of lines, a scraping board with sharp scraping edges and a horizontal line Angle of about 75 degrees is required. Because the scraper is deformed or worn during normal use, the sharpness of the surrounding image will be reduced, indicating that the ink may not pass through the grid properly. If this problem is not resolved in time, the ink will dry and be fixed in the grid.