What is trifold blister packaging? What should be paid attention to in the three-fold blister packaging?

The double-folded blister packaging means that one side of the double blister is connected together during plastic forming, and the bottom and the surface of the double blister are formed after being folded in half. It is characterized by not using high-frequency edge banding technology, but to make a buckle at a certain position of the bubble shell to connect the double bubble shell, if necessary, it can also be stapled, in the selection of materials, PET hard film can be used to achieve environmental protection The purpose of the material.
Issues that should be noted:
1. Because there is no high-frequency machine to seal the edges, the edges need to be cut on the cutting table with high quality
2. The tightness of the buckle should be moderate.