The glass fiber composite needle felt filter bag combines the advantages of glass fiber + chemical fiber to overcome the shortcomings of a single material, and makes a new composite filter material with high performance and high cost performance. When the filter material is cleaned, the jitter is good, the dust is easy to peel off; the porosity is high, the gas permeability is good, the dust collection efficiency is high, and the service life is long; the high-strength and low-stretch industrial yarn is used as the base cloth to greatly increase the strength; the PTFE microporous film is used. The pore size is reduced, the porosity is high, the filtration precision is high; the superior glass fiber + chemical fiber is selected, the acid and alkali resistance, hydrolysis resistance and wear resistance of the filter material are all enhanced; the filter material is post-treated by PTFE impregnation, and the treatment is improved. Waterproof and oil proof; suitable for wide working conditions, low energy consumption and low maintenance cost;

Main technical parameters of filter bag

High temperature composite needle felt coated filter bag
Fabric organization		Microfiber + short fiber
Gram  (g/m2)		950-1000
thickness（mm）		2.0-2.2
Breaking strength (N/50mm)	Warp	≥1300
	Weft	≥1200
Elongation at break(%)	Warp	≤10
	Weft	≤10
Breathability（dm3/m2/s)		80-150
Recommended temperature (℃)	Continuous use	200-260
	Instantaneous high temperature	≤280
Recommended wind speed (m/min)		0.6
Post processing		PTFE Impregnation、Heat setting、PTFE Laminating
Emission concentration mg/m3		≤20