Food bags, generally divided into vacuum bag, cooking bags, aluminum foil bags, aluminum bags, aluminum bags of yin and yang, color printing packing bags, paper-plastic bags, paper aluminum composite bag, kraft paper bags. Press pouch-type Category: Trilateral letters, in letters (back seal), the closure folding, side sealing, stand bags, zipper bags, bags and shaped bags nozzle. Food packaging include: snack food packaging, candy packaging, jelly food packaging, convenience food packaging, cooked food packaging, condiments packaging, meat packaging, rice packaging, grains packaging, food packaging spices, food additives and packaging. Having high barrier properties, can improve the storage period and shelf life of food; can adapt to a variety of packaging machinery and pollution, can be used for liquid packaging, powders and granules packaging and packaging; high intensity, can be used for re-packing; low temperature, it can be used for sea product packaging and frozen food packaging.