Excessive ink line troubleshooting on web printing

Symptom: When the ticket is printed, a redundant ink line appears in the form.

The inspection found that the ink line was not present at the position of the printing plate, and the factors such as squeezing the mouth and the blanket were eliminated; the full graphic was clear and there were no other stains, and the dirty printing was excluded; the ink was checked, and the ink roll was heavily accumulated. Big. Then wash the printing plate and the blanket, close the ink roller and print it. The ink line will appear again after a few minutes. Wash the ink, re-up less ink, slightly reduce the fluid volume, and then boot, the problem is solved.

Cause of failure: The ink roller has a large amount of ink. When the ink is deposited, the pressure on the printing plate is heavy. A thicker ink line is printed on the plate. Although the dampening solution has washed away some of the ink, it cannot be completely washed by the firmly adhered ink line. go with.

Matters needing attention: When the rotary machine is inked, it should be small ink and small water. Do not start large ink and water, leading to serious emulsification of ink and other failures.