Ton bag, also known as woven bag, ton bag, is a flexible packaging material used for transportation. It has the advantages of waterproof, anti-fouling, anti-radiation, strong and safe, and the structural type has sufficient compressive strength. Due to the convenient handling of plastic woven bags, the efficiency of loading and unloading and handling operations has been significantly improved, and it has developed rapidly in recent years. Plastic bags are generally made of polyester fiber fabrics such as polypropylene and high-pressure polyethylene for textile purposes. Widely used in chemical plants, decorative building materials, plastics, mineral products and other powder, granular, small items packaging, logistics warehousing, transportation and other manufacturing industry ideal equipment.