▎ 摘　　要

NOVELTY - Producing paper packaging bag comprises (i) utilizing bamboo fiber, polypropylene fibre, nano-silver powder and modified additive by compression molding machine, obtaining inner packaging base paper layer; (ii) mixing the modified bentonite and polyvinyl acetal, adding active reaction agent with 10-20% modified bentonite, stirring for 20-30 minutes to obtain barrier glue material; (iii) soaking the existing base paper layer into outer layer modifying agent, taking out, and drying to obtain outer packaging base paper layer; (iv) impregnating inner packaging base paper layer, and outer packaging base paper layer, and drying; and (v) coating the impregnated inner packaging base paper layer and outer packaging base paper layer with barrier adhesive material using ultraviolet light treatment, where the ultraviolet irradiation power is 100-300 W, performing the irradiation for 5-10 minutes, carrying out hot pressing at 90-95degrees Celsius, and coling. USE - The method is useful for producing paper packaging bag. ADVANTAGE - The method matches with the nanometre silver powder and modified additive.