When we print picture books, we often have big and small problems, so how can we avoid these problems? Today, Jinan printing factory will introduce the methods to avoid the trouble of picture book printing.
1. Correct choice of die-cutting knife, and die-cutting knife to sharp, high hardness, for different thickness of paper should choose different die-cutting knife.
2. The indentation line and indentation steel line should be selected correctly. The excellent indentation steel line should have moderate hardness, strong stability, smooth cutter head, axial symmetry in arc, small deviation in height and thickness, and complete specifications.
3. Reasonable control of the opening and connecting point, connecting point is essentially in the die-cutting knife edge position to open a certain width of small mouth, so that the carton and waste edge after die-cutting does not spread, easy to discharge waste. The connecting point is usually opened in the hidden place which is not easy to see after the product molding, and it should avoid the rubber line position. If the necessary connection point can be seen after forming, the smaller the connection point, the better. Otherwise, it is not easy to separate the connection point when discharging waste, which will lead to paper tearing and ink layer explosion nearby.
4. Reasonable arrangement of die-cutting time, frosted gold card paper die-cutting should be carried out as soon as possible after printing, to prevent the ink film in the case of excessive drying, in order to avoid ink layer burst line.
In a word, the quality of die-cutting indentation is the main reason for affecting the printing quality. Unreasonable selection and improper use of die-cutting knife and indentation steel wire may cause ink layer burst.
The above is the introduction of "Jinan printing factory's methods to avoid the trouble of picture book printing". I hope it can help you. For more information, please click our website: http://www.jindingyinshua.com 。