In the flexible packaging industry, PE film is one of the most common and most critical composite materials, which determines many special functions of packaging bags.PE rice bag film is mainly used in 5 ~ 20KG grain packaging, such packaging needs to be puncture resistant, high load-bearing, vacuum, usually made of PET, nylon, PE film and other composite, with good sealing, not easy to break the bag advantages, is conducive to extending the shelf life of the contents.