Inter found work in film after the leather covers, calendars, cards, packaging multi-layer paper valve bag, book bag through the cover, cut books, packaging and other processes are not found in blistering. But after a period of time. After delivery in the hands of customers are found blistered. Puzzling, but in fact it is nothing incomprehensible phenomenon. He also underlined bubble and the ink layer after the film has a great relationship valve bag containing solvents and other chemicals, especially large area printing graphics more obvious. Are used in chemical, machinery and other industries valve bag package bag, particularly widely used in food packaging industry. Kraft purposes: kraft paper is widely used in a variety of packaging supplies, paper bags, kraft paper bag, box, gift box kraft paper, kraft paper printing printing kraft paper, kraft paper notebooks, exercise books kraft paper, kraft paper and envelopes, special plastic film by thermocompression bonding mechanism Effect of temperature, pressure, machine speed adhesion fastness, two unrelated Both paper and plastic materials, adhesives rely on an intermediary role. Only under the influence of heat stress is available to achieve complex. Hot under the action of external forces. Accelerate the velocity of adhesive molecules. Food packaging to facilitate follow, portable principle of dry mortar valve bags Paper bags, Kraft tensile advantage makes it ideal for packaging needs. In order to prevent consumers mention when pulled off the bag and packed food, packaging materials requires a good tensile strength. Beverage packaging requirements of production materials have a certain resistance to moisture deformation capacity to prevent water absorption deformation damage. Caulk valve bags Paper bags, Xin Yu Package (online consultation), the valve pockets by Xiong Yu Xin plastic packaging plant. Xiong Yu Xin plastic packaging plant (www.xinyusl.com) (www.xinyusl.com) Hebei Baoding, composite materials packaging products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum Limits to meet customer needs. Yu Xin leader in packaging with the staff warmly welcome all inquiries negotiations to create Xin Yu packaging better future.