Food composite packaging bags are widely used in the packaging bag industry. According to the bag type, they can be divided into middle sealing bags, three-side sealing bags, standing bags, zipper bags, four-side sealing bags, shaped bags, yin and yang bags, and rolled films. A composite packaging bag is a bag made of a packaging film in which two or more materials are combined by one or more dry lamination, and the packaging bag has the characteristics of a plurality of materials, and can be packaged according to the packaging product. Need to combine, has a good adaptability. There are many packaging materials for composite, such as BOPP, PET, OPP, PVC, AL, PA, PT, etc.

       The food composite packaging bag selects the packaging material according to the requirements of the product. If it is necessary to make a vacuum food composite packaging bag, PA/PE can be used. The composite packaging has good vacuuming effect, and the tensile performance and puncture resistance are quite good; BOPP/PE can be used as a composite package for refrigerated food. This composite material has strong freeze resistance, uniform thickness and beautiful printing. It is suitable for PET/resistance, anti-oxidation, waterproof, moisture-proof and mechanical properties. Aluminum foil bags made of AL/PE or PET/AL/NY/CPP materials. Aluminum foil bags are widely used in rice, meat products, dried fish, aquatic products, bacon, roast duck, roast chicken, roast pig, and quick-frozen food. Food, ham, cured meat products, sausages, cooked meat products, pickles, bean paste, spices and other packaging.

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