Packaging flexible printing quality problems solution

Misregister 1, root cause analysis (1) the tooth space, or have the top teeth phenomenon. (2) feeding or discharging uneven tension, causing membrane transfer is not smooth. (3) thin films have ruffled, and uneven thickness of the material with gas, etc. (4) thin film joint influence overprint. 5 color pressure before ambassador printing graphic deformation 6 plate quality is bad, uneven thickness. 2, solution (1) stop, pay attention to adjust the tooth top. (2) check the adjust tension in the receiving and feeding, ensure the balance. (3) replacement without falbala film or release of gas in the material. (4) pay attention to the adhesive joint, ensure bafflers. 5. Adjust the printing pressure, printing pressure matching between the assorted. After 6. Check the plate, the part of the appropriate grinding, or where the thin plate appropriately, if can't solve the problem, you should replace the printing. 1, the root cause analysis (1) with the wrong type of ink. (2) excessive dilution ink. (3) thin film surface treatment. (4) ink metamorphism. 2, the solution (1) check whether the ink is suitable for thin film type, choose the appropriate ink. (2) add appropriate oil ink, adjust the ink dilution is suitable for printing. (3) detection of thin film surface tension. (4) to replace the new ink. 1, root cause analysis (1) ink poor drying or solvent residue. (2) drying equipment residual heat accumulation or coiling prints storage at high temperatures. (3) winding tension is too big. 2, the solution (1) improve the drying temperature or lower production speed. (2) ensure that the environment temperature is suitable for printing requirements. (3) avoid print winding pressure is too big, can use offset printing powder coated before winding. 1, the root cause analysis (1) the plate itself quality is bad, uneven thickness. (2) the plate quality is bad. (3) between the plate and embossing roller pressure is too large. 2, the solution (1) check the plate, if the thickness is not uniform, but for the thick part of the appropriate grinding. If the appropriate padding thin place, faithfully part with text thin part of graphic, deal with field part of the mat, if still cannot solve the problem, the change of quality plate. (2) to process and pay attention to improve the plate making technology, the quality is qualified. (3) speed regulation control plate between the roller and embossing roller pressure, on the premise of guarantee the quality of printing, try to switch to a minimum pressure, namely the touch can, avoid the pressure overshoot ink crowded around, on the edge of the plate printing ink to accumulation state transition to film and edge of the ink problems above.