White base copperplate cardstock

White background copperplate cardstock is mainly used in the production of higher-grade paper boxes. Therefore, the paper surface must have high whiteness, smoothness, good ink receptivity, and good gloss. The back of the paper should also be white cardstock. The white cardstock needs to have high whiteness and good printability to facilitate printing on the back. In addition, there should be no delamination during the rolling of the paper box. Vacuum packaging has the effect of product display and protection, and is relatively lightweight, so it is widely used. The most important quality requirement for white copper cards used in vacuum packaging is the adhesion effect with PVC rubber shells. If it cannot be effectively adhered, it will not be accepted by customers. Due to the fact that the bonding effect between cardboard and PVC rubber shell can be affected by the bonding processing conditions (adhesive concentration, heating temperature, heating time) and printing ink, our factory can only guarantee the bonding effect of cardboard before brushing. Customers should conduct tests to confirm the bonding effect before use. Main uses: Various high-end paper boxes and vacuum blister packaging.