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Double-layer Protective Film Of PET
- Jan 08, 2019 -

PET film is a kind of packaging film with comprehensive properties. It has good transparency and luster, good air tightness and fragrance retention, moderate moisture resistance and low temperature moisture permeability. The mechanical properties of PET film are excellent, and its strength and toughness are the best among all thermoplastics. The tensile strength and impact strength of PET film are much higher than those of ordinary film, and its stiffness is good and its size is stable. It is suitable for secondary processing such as printing and paper bags. PET film also has excellent heat resistance, cold resistance, chemical resistance and oil resistance. However, it is not resistant to strong alkali, easy to carry static electricity, and there is no proper method to prevent static electricity. Therefore, attention should be paid to packing powder articles.