Development status and Prospect of paper corner protection

Since the 21st century, paper packaging containers are popular among consumers because of their advantages of low cost, resource saving, good mechanical processing performance, large-scale production by mechanization, easy printing, harmless and non-toxic when used, and easy recycling. Moreover, they are in line with the concept of green and environmental protection, and promote the use of paper products as the first packaging material. However, in the process of the continuous development of paper packaging, people also found the defects of paper packaging, such as poor load-bearing capacity of carton packaging, easy deformation and so on. In the face of these problems encountered in the development of paper packaging, paper corner gradually emerged, especially in honeycomb box packaging, corrugated box packaging. In the whole process of development, the paper corner protection also began to change its previous shape, and appeared winding corner protection, bending corner protection, jigsaw corner protection, C-type corner protection, U-type corner protection and other special-shaped corner protection products. In the honeycomb carton packaging, the honeycomb paperboard is used to make the box into a complete box, and then the paper corner protection is used to reinforce around the box. The combination of paper corner protection and honeycomb paperboard enhances the compression performance of honeycomb carton and greatly enhances the load bearing capacity of honeycomb carton. The appearance of paper corner products makes the corrugated box bearing ability poor, easy to deformation and other defects have been significantly improved.

In a suitable long period of time, the type and use of paper corner protectors are single, and they are generally used as edge protectors for cartons, etc. However, with the increasing demand of paper corner protection, its application scope is constantly expanding, such as the development from the edge protection of cartons to the winding corner protection of barrel like objects such as steel coils. As another deformation of paper corner protector, the usage of U-shaped corner protector is also increasing. Nowadays, U-shaped corner guards are mainly used in the production of paper trays. Compared with the V-type angle guard, the U-type angle guard has a great advantage. The paper tray uses U-shaped corner protector to add the bearing capacity of the paper tray, which also facilitates the processing and production of the paper tray, and improves the power of the paper tray.