Before using the plate roller, wipe the anti-corrosion oil of the layout and check the layout for bumps, scratches and other problems.

　　All factory plates have been processed by special equipment; If there are no special circumstances, do not use coarse sand to polish before printing. If it is necessary to sand the plate roller, use metallographic sand. Avoid sharp and sharp utencil scratches and scratches in the upper and lower plate rolls and printing.

　　The scraper used for printing must be a special scraper, and the scraper must be checked for damage before each printing; Damaged scrapers must be repaired or replaced with new scrapers before use, and the brush knife must be polished before each printing. The Angle and pressure of the scraper and the layout should be controlled according to the specific printing pattern. Please filter the ink before each printing to avoid sand damage in the ink.