▎ 摘　　要

NOVELTY - A dust removing cloth bag is obtained by taking modified graphene and polyamide and dispersing with solvent to obtain spinning solution, followed by adding 0.1-10% polyvinyl pyrrolidone to adjust spinning liquid viscosity, performing electrostatic spinning process, controlling spinning voltage to 7-18 KV, maintaining receiving distance to 5-60 cm and maintaining spinning speed to 0.01-1 ml/minute to obtain modified graphene fiber material, where the mass percent of modified graphene and polyamide is x:y, x is 1-20% and x+y is 1. USE - Dust removing cloth bag. ADVANTAGE - The bag has high filtering efficiency, high temperature, light weight, high strength, no water-absorbing surface, increased efficiency and lifetime and reduced frequency of replacement and cleaning.