Design of filter bag media with high collection efficiency

The various filter bag media were prepared by a nonwoven pilot plant coupled with the needle punching and thermal bonding combination processes. The prepared filter media were evaluated by the reliability assessment standard for the filter bag media of the environmental cleaning dust collector (RS K 0001). A new filter bag medium was thermal bonded with polyester felt and polyamide nano-sized web. The air permeability of the filter bag media with nano-sized web was largely reduced as compared with the control media. In the evaluation of filtration test, the filter medium with nano-sized web showed more stable filtration behavior and more higher collection efficiency than the others