How Carton Printing Should Cope with Problems Caused by Low-gram Base Paper

Common types of base paper used for corrugated cardboard paper are: cardboard, noodle paper, kraft paperboard, tea board paper, whiteboard paper and single-coated whiteboard paper. Due to the differences in the paper making process and the paper making process of each base paper, the physics and chemistry indexes, surface properties, and printability of the above-mentioned base papers are greatly different.

When corrugated cardboard is made of low-gram base paper, the appearance of corrugated marks on the surface of the corrugated paperboard may occur. It is easy to cause blemishes and incapable printing of the required graphic content in the depression of the cymbal. For the unevenness of the surface of the corrugated cardboard caused by dew, the flexible resin plate with good elasticity should be used as the printing plate to overcome the printing failure. Clear and exposed defects. In particular, A-type corrugated paperboard produced from low gram paper, the printing press will make the corrugated board's flat compressive strength is greatly damaged, and after the corrugated board passes the printing roll and the embossing roll, the side pressure strength will also be There is more damage.

If the corrugation surface of the corrugated paperboard differs too much, it may easily lead to the warpage of the corrugated board produced by the corrugated cardboard line. Warp cardboard will cause overprinting and printing groove irregularities in printing. Therefore, warp paperboard should be flattened and then printed. If you are forced to print uneven corrugated cardboard easily lead to rules. It also causes the thickness of the corrugated board to decrease.

Source: China Packaging Magazine