This line uses PVC resin powder as main raw material and mixes several kinds of additives to manufacture self-adhesive PVC freshening film by extruder. In the process of production, the raw materials will not be mixed additives harmful for health and contaminative for environment. The film has high tensile strength, good fog drip performance, high transparency, good surface glossiness. The commodities packaged could show original characteristics and glamour, more beautiful. The film can keep freshness of food, prevent the loss in quantity, dry and taste mixing, and be safe and hygiene. So it is widely used for packaging and storing vegetable, cold dish, compote, raw and ripe meat, flour goods and so on in supermarket, guesthouse, restaurant, bakery and family etc.