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What are the commonly used plastic sheets for blister packaging? What are the characteristics of each?

Time: 2024-08-08

Summary:Plastic packaging sheet called hard or film, commonly used are: PET (polyethylene terephthalate) hard sheet, PVC (polyvinyl chloride) hard sheet, PS (polystyrene) hard sheet. PS hard sheet has low density, poor toughness, easy to burn, and will produce styrene gas (a harmful gas) when burning, so it is generally used to produce various industrial plastic pallets.

Plastic packaging sheet called hard or film, commonly used are: PET (polyethylene terephthalate) hard sheet, PVC (polyvinyl chloride) hard sheet, PS (polystyrene) hard sheet. PS hard sheet has low density, poor toughness, easy to burn, and will produce styrene gas (a harmful gas) when burning, so it is generally used to produce various industrial plastic pallets.

PVC hard sheet has moderate toughness and is not easy to burn. When burning, chlorine gas will be generated, which will have a certain impact on the environment. PVC is easy to heat and seal. Sealing machine and high frequency machine can be used to seal the edge. It is the main raw material for the production of transparent plastic products. PET hard sheet has good toughness, high transparency, easy combustion, and does not produce harmful gases when burning. It is an environmentally friendly material, but it is expensive and suitable for high-grade blister products. The blister shells in European and American countries generally require PET hard sheet, but it is not easy to heat seal, which brings great difficulties to packaging. In order to solve this problem, people use a material called PETG glycol modified-polyethylene terephthalate, this material has both the heat sealing of PVC and the high ring protection and transparency of PET, but the price is higher.

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Blister Industry Knowledge Summary

The raw materials of blister products are plastic coiled materials, and the thickness of coiled materials is generally not more than 1.5MM. The raw materials include PVC, PET, PP, PS, GAG, PETG, flocking and other plastic materials, producing high-grade and various specifications of electronic blister packaging, stationery blister packaging, toy blister packaging, hardware blister packaging, food blister packaging, daily chemical gift crafts blister packaging.

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