The paper-plastic composite bag is made of plastic and kraft paper. The plastic layer is usually made of polypropylene (PP) or polyethylene (PE) as the base material. The kraft paper is made of refined composite special kraft paper, which has high strength and waterproof Features of good sex and beautiful appearance. It is currently one of the most popular packaging materials and is widely used in plastic raw materials, cement, feed, chemical, fertilizer and other industries. Paper-plastic composite bag-composite plastic woven bag is made of plastic woven bag (fabric for short) as the base material and compounded by casting method (cloth/film composite is two-in-one, cloth/film/paper composite is three-in-one One). They are mainly used for packaging engineering plastics, rubber raw materials, building materials, food, fertilizers, cement and other powdery or granular solid materials and flexible articles.