The paper-plastic composite bag is made of plastic and kraft paper. Usually, the plastic layer is made of polypropylene (PP) or polyethylene (PE). The kraft paper is made of refined composite kraft paper, which has high strength and waterproof. Good character and beautiful appearance. It is 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 (abbreviated as cloth) and compounded by casting method (cloth/film composite is two-in-one, cloth/film/paper composite is triple One). They are mainly used for packaging engineering plastics, rubber raw materials, building materials, food, fertilizer, cement and other powdery or granular solid materials and flexible articles.
●Composite woven bag: It is divided into polypropylene two-in-one bag, polypropylene three-in-one bag, polyethylene two-in-one bag and polyethylene three-in-one bag according to the main materials; it is divided into seam bottom bag and heat seal according to the sewing method. Bag, outer valve pocket, inner valve pocket;
● According to the effective width of the bag is divided into 450, 500, 550, 600, 650, 700mm, where the effective width does not meet the above specifications.
Paper-plastic composite bag: Common name: three-in-one bag
(1) Definition of definition
Paper-plastic composite bag: also known as three-in-one composite paper bag, it is a small bulk container, which is mainly transported by human or forklift. It is easy to ship small bulk powdery materials, with high strength and good waterproofness. Koryo, easy to load and unload, etc., is one of the most popular and practical general packaging materials.
(2) Process description: The outside is made of refined white kraft paper or yellow kraft paper, which is made of plastic woven cloth. The plastic particles PP are melted by high temperature and high pressure, and the kraft paper and plastic woven fabric are combined together. The inner film bag can be added. The paper-plastic composite bag form is equivalent to the open bag at the bottom of the seam. It has the advantages of good strength, waterproof and moisture resistance.