A Swedish company has developed a new type of high-strength paperboard that can be used to make boxes that are strong, strong, and resistant to collisions and that can effectively protect the contents inside.
This new type of paperboard is embedded with plastic pellets, which are made by first incorporating a large number of air-filled plastic pellets with a diameter of 0î€01 mm into the pulp, followed by cardboard forming. As the gas inside the plastic pellets expands during the processing of the cardboard, its diameter is correspondingly expanded to 0.05 mm. At the same time, the cardboard is naturally squeezed by the expansion of the plastic pellets, and its texture becomes stronger, so it has a high strength.