High-strength quantification-reducing polyester packaging film

The utility model relates to the technical field of thin films, in particular to a three-layer co-extruded thin high-strength reduced polyester packing film for the purposes of general packaging, aluminum plating, compounding, adhesive tapes, decorations and the like and with a thickness of 6 to 9 microns. The thin film is manufactured through three-layer co-extrusion and biaxial stretch corona treatment, the vertical and the horizontal tensile-strengths are larger than 240 Mpa, the tensile modules of elasticity is larger than 4400 Mpa vertically, and the tensile modules of elasticity is larger than 5200 Mpa horizontally. The middle layer is a polyester layer, and the two surface layers are polyester layers containing anti-blocking agents. The high-strength reduced polyester packing film enormously reduces the thickness of the thin film and meets the use requirements of packaging and the like; therefore, the high-strength reduced polyester packing film is of greater strategic significance in an age advocating