| abstract |
The utility model provides the biaxial tension nylon co-extrusion film that a kind of surface layer is polyester, including the sequentially connected functional layer made of coextrusion casting and stretch processes, sandwich layer, composite layer；The functional layer is polyester copolymer resin nitride layer, and the sandwich layer is adhesive resin layer, and the composite layer is amide resin.The overall thickness of the co-extrusion film is 10um~30um.Co-extrusion film provided by the utility model overcomes the deficiencies in the prior art, and percent thermal shrinkage is low, there is high resistant to deaden moist, the corrosion of surface electrolyte resistance, and product cost is low, manufacture course of products environmental protection. |