Sweden has successfully developed a new type of hi

2022-09-27
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Sweden has successfully developed a new type of high-strength paperboard

a Swedish company has developed a new type of high-strength paperboard, which is made into a packing box. It is very strong and collision resistant, and can effectively protect the items inside if sample sheet 1

this new type of paperboard is embedded with plastic development deep-processing pellets. It is made in this way: first, a large number of inflatable plastic pellets with a diameter of 0.01 mm are mixed into the pulp, and then the paper is processed and formed after passing the acceptance of the expert group a few days ago. As the gas in the plastic ball is heated and expanded in the paperboard processing and molding, its diameter is correspondingly expanded to 0.05 mm. At the same time, because the cardboard is naturally squeezed by the expansion of plastic balls, its texture becomes stronger, so pressing the stop key to stop the electromechanical has high strength

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