The cardboard packaging box generally requires some special process treatment, such as gloss glue, matte glue, gloss oil, etc., which is generally based on the following factors
1. Protect the color of printed matter. The face paper printed on color box packaging is printed with ink. Under the action of ultraviolet light, it is easy to cause the fading of printed matter.
2. Waterproof effect, because the color box packaging is paper products, in order to prevent water deterioration;
Enhance the brightness of the product, after special surface treatment, make the product light soft, rough feeling