In almost all plastic synthetic resins. Plastic resins is the main component, the adhesive plays a role to make grocery bags, plastic, other ingredients can cemented into a whole. Although the incorporation of additives can change the nature of the plastic, but plastic resin is to determine the type, performance and use of fundamental factors composite food bags for food, electronics, chemicals, pharmaceuticals, tea, precision instruments and defense products, vacuum-packed or sophisticated general packaging. Raw material: OPP, PE, POF, PPE, PP, etc. composite membrane process is divided into: side seal bags, food bags bottom sealed bags, sealed in bags, side seal. Require four different machines. PE film: Transparency slightly less cpp, but softer than cpp, PE film is better tensile properties, tensile strength is better. There are white and transparent PE two kinds of PE (HDPE / LDPE / LLDPE), feel softer. PA film (nylon): PA relatively tough material, transparency and wear puncture-resistant, easily oxidized, easy to shrink and wrinkle, this material is suitable for installation similar bone products. Thermoplastic resin is a heat-softened, hardened cooling performance pe food bags, and no chemical reaction of small food bags, regardless of the number of repeated heating and cooling times, can maintain this performance. Where a thermoplastic resin which are of linear molecular structure. It includes all polymeric resin and containing a partial condensate resin. The thermoplastic resins include: polyethylene, polyvinyl chloride, polystyrene, polyamide, polyacetal, polycarbonate, polyphenylene oxide, polysulfones, rubber or the like. Advantages of the thermoplastic resin molding is simple, has a high mechanical energy. The disadvantage is that the heat resistance and rigidity is poor. Food bag | Inner food bags | plastic provided by Xiong Red 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 flag into the brilliant plastic and you work for a better future!