Can improve and enhance the performance of plastics. For example: the addition of fiber can improve the mechanical strength of plastics; adding asbestos can enhance the heat resistance of plastics; adding mica can enhance the electrical insulation properties of plastics; adding graphite, molybdenum disulfide can improve plastic abrasion, wear resistance. Plus filler can also reduce the cost of composite plastic food bags for food, electronics, chemicals, pharmaceuticals, tea, precision instruments and cutting-edge products such as vacuum packed defense or general packaging. Raw material: OPP, PE, POF, PPE, PP, etc. composite membrane process is divided: while envelope, bottom seal bag, sealed in bags, side seal. Require four different machines. OPP PET thin film: Material hard, and can not stretch wholesale food bags, sealing type is very good, but the transparency of the more general, more brittle material, feel the difference. CPP film: CPP material transparency but better than the OPP PE ratio is poor, soft and high-temperature materials that can be used to make printed material food bags, but not easy printing. According to industry sources, some companies to reduce costs, might cut corners, and some unscrupulous traders to reap greater benefits, may also make use of low-quality plastic waste materials, and poor quality of food products in the process of packing bags of food Some harmful substances are likely to migrate into the food which in turn cause harm to humans. Custom food bags, food bags, Zhejiang, red plastic factory Xiongxian provided by Red Plastic Factory. Xiong Red Plastic Factory (corp.1688.com/page/index.htm?memberId=poqwe321&fromSite=company_site&tab=companyWeb_detail) strong, credible, Hebei Baoding bag industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the Red plastic factory and you hand into the brilliant, for a better future!