Card packaging refers to a packaging form in which a paper card and a transparent blister folded over three sides are inserted together. Its characteristic is that packaging does not require any packaging equipment, and only requires workers to put the product, blister and paper card in place. Blister card packaging refers to the heat sealing of the blister on the surface of the paper card with blister oil, which is commonly used in supermarket battery packaging. It is characterized by the need for blister sealing equipment to encapsulate the product between the paper card and the blister. Double blister packaging refers to a packaging form that uses two blister packages to encapsulate the paper card and the product. Its characteristic is that high frequency machine is needed to seal the double-bubble shell, the efficiency is low, the packaging cost is higher, but the edges are neat and beautiful, and the product appearance is high-grade. The half-blister packaging is the double-blister packaging of the product, which refers to the packaging of the paper card and the product with two blisters, but the product is partially exposed outside the blister. It is suitable for particularly long The product. It is characterized by the need to manually cut the exposed parts of the bubble shell with scissors, and then use the high frequency machine to seal the double bubble shell. The efficiency is low and the packaging cost is high, but the visual effect is good, and it can meet the needs of users in supermarkets. When it comes to commodities, directly touch the demand of the product. The whole purpose of the external half-blister packaging is that the products are all placed outside the double-blister shell. The double-blister shell only encapsulates the paper card and serves as a bottom support for the head of the product. The product and the blister are connected with plastic straps. Its characteristic is that it requires a high frequency machine to seal the double bubble shell and punch the strap holes on it. The efficiency is the lowest and the packaging cost is high.