关于包装膜的种类及英文表述（如BOPP,CPP,POF,PET)

BOPP (Biaxially Orientated Polypropylene film) 双向拉伸聚丙烯膜
BOPP is a thin, clear, flexible film used mainly for, biscuit, snack and confectionery packaging. It can be produced with special sealing layers and with a wide variety of surface finishes to enhance consumer interest and appeal.

CPP (Casting Polypropylene film) 流延聚丙烯膜
CPP is a kind of unoriented film. Compared with BOPP, it has property of superexcellent flexibility and high sealing strength .It can be boiled in high temperature to disinfect for long time storage.it is mainly used for package of dry fruit,sea food,salted meat products,fruit jam etc to keep those food fresh for longer time.

POF (Polyolefin Shrink film) 聚烯烃薄膜
POF is a strong, clear, biaxially oriented, heat-shrinkable multi-layer polyolefin film. POF is used for durable, tough outer and multi packing with excellent optics, sealing and shrinking.

PET (Polyethylene Terephthalate Polyester film) 高透明聚酯薄膜
PET is