Strengthen the core high hardness carton

The higher the level of high hardness corrugated cartons, the higher the hardness. The more pits, the higher the hardness. Strengthen the core high hardness carton to increase the weight of the paper core and increase the rigidity of the carton. Hardened corrugated cartons increase the weight of the corrugated board paper or liner to increase the rigidity of the carton. The paperboard adhesive strength and pit stiffness of the high-pressure resistant cardboard carton also have a certain impact on the paperboard side pressure strength. The better the pit shape, the better the adhesion and the higher the edge pressure strength. 1. Plane pressure refers to the pressure perpendicular to the plane of corrugated cardboard. 2. Vertical pressure is the pressure that is consistent with the direction of the corrugation, and parallel pressure is the pressure perpendicular to the corrugation direction. 3. [1" stands for the strongest. Extra-hard corrugated carton: high hardness, high strength core, strong resistance to breakage.

Box in the industry, paper on the macro. Carton: It is the most widely used packaging product. There are corrugated boxes and single-layer cardboard boxes according to different materials. There are various specifications and models.

This is the cross-section structure of corrugated cardboard.