Quais são as folhas de plástico comumente usadas na embalagem de bolhas? Quais são suas características?

The sheet material used for blister packaging is called hard sheet or film. Commonly used ones 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 produces styrene gas (a harmful gas) when burning, so it is generally used to produce various industrial blister trays. PVC hard sheet has moderate toughness and is not easy to burn. It will produce chlorine when burning, which has a certain impact on the environment. PVC is easy to heat-seal and can be sealed with sealing machines and high-frequency machines. It is the main raw material for producing transparent blister products. PET hard sheet has good toughness, high transparency, easy to burn, and does not produce harmful gases when burning. It is an environmentally friendly material, but the price is high and it is suitable for high-end blister products. Blister shells in European and American countries generally require the use of PET hard sheet, but it is not easy to heat-seal, which brings great difficulties to Embalagem . Para resolver esse problema, as pessoas usam um material chamado PETG Etileno Glycol modificado-polietileno tereftalato, que tem a fácil capacidade de calor do PVC e a alta proteção ambiental e transparência do PET, mas o preço é maior .}}}}}}}}