OPP polypropylene bags are stretchable, is a plastic, in fact, plastic bags, wherein: easy combustion, flame conditions: melt dripping down on the yellow and blue, less smoke from the fire to continue burning. OPP bags: with high transparency, more brittle and other features, by the OPP chip on the folded side edge and the opening tongue at the sticky adhesive seal, using tear seal fashion into products to protect the skin surface of the tongue will be folded cement It can be easy to use, elegant, widely used in clothing, food, printing, stationery, cosmetics, paper and other industries. Customers can also be printing a variety of patterns and playing butterfly hole Aircraft hole. OPP film has a distinct advantage: a good seal. Experimental data show that the new sealing OPP film was more than double its traditional film, making it the product of moisture, freshness stronger, longer lasting; Second, strong security. The new membrane synthesis techniques used and the particular printing technology with high technology content, only Germany and Japan, two master the technology, the production of counterfeit almost impossible, to provide a strong guarantee commodity security; Third, the new OPP film raw material for biodegradable materials, so in full compliance with international environmental protection standards. The new OPP film in tobacco has been Blair, some large international companies have started to use. Packaging weight reduction will continue to make progress. From some of these projects can be clearly seen in the general trend to reduce packaging quality. Smaller weight plastic containers and flexible packaging, plastic bottles instead of glass and metal containers, can reduce the amplitude of ground transportation costs. Its development trend include: easy to pick up handling, required inventory that due to lighter packaging, pallet load is reduced accordingly, may reduce the spleen motorcycle and fork lifts; for the individual cartons, glass and plastic containers, and flexible packaging other food packaging container packing up, we need to increase their strength, in order to facilitate safe delivery of the store.