The dust bag is divided into two processes:

Sewing filter bag is the use of industrial three-needle two-thread sewing machine to sew thick needle-punched felt fabrics. This process not only requires high equipment, but also requires dust and dust removal for the threads used and the production. Guarantee of good condition in the use of cloth bags. The production equipment is made with industrial sewing machines, which is so easy for non-ordinary sewing equipment. Workers should have good skills to ensure the fit of the needle and thread in the production of dust bag and pay attention to the cooperation of the upper and lower threads in the sewing.

Hot-melt filter bag is the hot-melt bonding of dust-removing cloth bag, using advanced machinery and equipment, fixed-size woven cloth, rolling and whole-shaft filter material processing equipment. The bag made of hot melt equipment is tight, but the wind speed of the bag filter should be properly controlled. Hot melting makes the dust bag as a whole into a bucket shape. This kind of equipment that is completely controlled according to the mechanical setting will undoubtedly reduce the labor cost. However, this process is generally used for processing in mass production.