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: the harder material food bag, and can not stretch, 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 grocery bags printed materials, but not easy to print. Hardener hardener, also known as a curing agent or a curing agent. Its main role is to make the linear molecular structure of the polymer molecular structure of cross-linked into shape, so that the resin has thermoset. Phenolic resin curing agent is commonly used methenamine (hexamethylene tetramine). Epoxy curing agents are commonly used amines, anhydrides PE film: Transparency slightly less cpp, but softer than cpp, PE film tensile properties make better food bags, pull-off force is better. There are white and transparent PE two kinds of PE (HDPE / LDPE / LLDPE), feel softer. PA film (nylon): PA relatively tough material customized grocery bags, transparency and wear puncture-resistant, easily oxidized, easy to shrink and wrinkle, this material is suitable for installation similar bone products. Custom food bags, red plastic factory, Xinjiang food bags provided by Xiong Red Plastic Factory. Xiong Red Plastic Factory (corp.1688.com/page/index.htm?memberId=poqwe321&fromSite=company_site&tab=companyWeb_detail) quality services and products, and are subject to approval and confidence in the new and old customers and the industry. Our company is a certified member of the whole network Commercial Union, Commercial Union customer service icon on the page, you can talk directly with our customer service staff, to our future cooperation happy!