| abstract |
The invention provides a method for manufacturing a high-permeability woven bag, which comprises a polypropylene woven bag, an EVA (ethylene vinyl acetate) film layer and a polyethylene film layer from outside to inside in sequence, and comprises the following steps: s1: blending and drying raw materials; s2: a wire drawing process; s3: a foaming process; s4: then adding 80-90% of EVA and 10-20% of foaming agent into a double-layer co-extrusion blown film machine, heating, melting and blowing to form cylindrical two-layer inner mucosa, wherein the outer layer is an EVA film layer, and the inner layer is a foamed polyethylene film layer; s5: a knitting process; s6: compounding; s7: and (6) making bags. The invention aims to provide a manufacturing method of a high-permeability woven bag for containing living matters such as fruits, seeds, saplings and the like, which has good air permeability and good water-resisting effect. |