[Chinese Packaging Network News] Now the carton industry has been rapidly developed, and the printing of cartons has also been rapidly developed. In the printing process, there will be some ink printing problems. The Chinese packaging network now shares some information about this. Class problems and how to deal with them.
First, printing ghosts and leaks
First, printing ghosts and leaks
The most common problem is that when printing a pattern or text, a double image appears around it, or a double image appears at the front edge of the print. This is caused by the pressure between the anilox roll and the printing plate and the printing plate. The method is to increase the gap between the two rollers and reduce the pressure accordingly. The printing leakage is caused by insufficient pressure of the printing roller and the embossing roller. The processing method is to adjust the gap between the plate roller and the embossing roller and increase the pressure.
Second, not allowed to register
The position and accuracy of the multi-color printing machine's own roller, the adjustment of the feed roller, the drawing roller, the use of the traction belt, the accuracy of the printing plate arrangement, and the warpage of the paper board all have a direct impact on the overprinting effect. The processing method is that the platen portion of each color is slightly larger than the previous one; adjust the gap and position of the feed roller and the traction roller to ensure the flatness of the cardboard.