1、 Because the same pattern on the tag may need two or three times of post press processing, try to make the content requiring post press processing close to the regular edge, so as to make the position of post press positioning edge gauge consistent and accurate with the position of printing edge gauge

2、 When cutting paper, it is required to be accurate, neat and with small error. The position of its mouth and the cutting of the edge shall be standardized and neat, so as to ensure the accurate positioning of the rules during cover printing

3、 Strictly control the printing process. 1. To ensure the balance of ink and water, on the premise of ensuring the printing quality, the smaller the water volume, the better; 2. The temperature and humidity in the workshop shall be well controlled. The temperature shall be 20 ~ 25 ℃ and the humidity shall be 60% ~ 70%; 3. During the printing process, the side gauge and the bottom gauge shall be stable; Fourth, the color of the cover of the whole batch should be consistent

4、 In fact, the implementation of post press processing is inseparable from the early plate making and design, the accurate control of printing links, and the strict control of the accuracy of rules during the special treatment of post press process. Only when these three aspects are achieved can the post press processing quality be guaranteed