Vacuum blister machine blister double blister packaging

What should be paid attention to in double blister packaging? Double blister packaging refers to the packaging form in which the paper card and the product are packaged together with two blister shells. Its characteristics are that a high-frequency machine is required to seal the edges of the double blister, which has low efficiency and high packaging costs, but the edges are neat and beautiful, and the appearance of the product is high-end.