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Paper plastic composite

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Paper-plastic composite is made of plastic and kraft paper. Usually the plastic layer is woven with flat silk based on polypropylene (PP) or polyethylene (PE), while kraft paper is made of refined kraft paper, which has the characteristics of high strength, good waterproof and beautiful appearance. At present, it is one of the most popular packaging materials, widely used in plastic raw materials, cement, feed, chemical industry, fertilizer and other industries. Paper-plastic composite bag-composite plastic woven bag is made of plastic woven bag (abbreviated as cloth) as the base material and tape casting method (cloth/film composite is two-in-one, cloth/film/paper composite is three-in-one). They are mainly used for packaging engineering plastics, rubber raw materials, building materials, food, fertilizer, cement and other powder or granular solid materials and flexible goods. Composite woven bags: according to the main materials, they are 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 sewing method, they are divided into sewing bottom bag, heat sealing bag, outer valve bag and inner valve bag; according to the effective width of the bag, they are divided into 450, 500, 550, 600, 650 and 700 mm, and the effective width does not match. It meets the above specifications.
 
 
Paper-plastic composite bag: commonly known as: three in one bag
 
 
(1) Definition of paper-plastic composite: also known as three-in-one composite paper bag, is a small bulk container, mainly by human or forklift unit transport, it is easy to transport small bulk powder granular materials, with high strength, good waterproof, beautiful appearance, easy to load and unload and other characteristics, is one of the most popular and practical at present. Ordinary packaging materials.
 
 
(2) Process description: Outside, refined white kraft paper or yellow kraft paper is used. Inside, plastic braided fabric is used. Plastic particles PP are melted by high temperature and high pressure. The kraft paper and plastic braided fabric are combined together. The inner membrane bag can be added. The paper-plastic composite bag is the same as the open bag with seam bottom. It has the advantages of good strength, water-proof and moisture-proof.
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