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Medium temperature polyester needle felt dust filter bag
Medium temperature polyester needle felt dust filter bag
A. high strength low stretch industrial filament fabric, the strength greatly increased.
B. choose silk denier fiber, narrow aperture and high porosity, high filtration precision.
C. choose  polyester fiber, resistant to acid and alkali hydrolysis resistance are enhanced.
D. more smooth surface treatment, has the effect of the surface of the filter material filter effects.
E. little resistance during operation, save energy.
Material Polyester Picture
Weight (g/m2) 500
Thickness (mm) 1.80
Air permeability(m3/m2/min) 15
Breaking strength(N/5*20cm) Warp ≥1000
Weft ≥1100
Elongation (%) Warp ≤35
Weft ≤40
Constant working temperature (℃) 130
Instant working temperature(℃) 150
Finishing  Singed, calendering
Surface electric-resistance (Ω) < 10E5
Volume electric-resistant (Ω) < 10E5
Friction voltage(V ) < 500
Surface density (μC/m2) < 7
Half life (S) < 1
Acid resistant common
Alkali resistant inferior
Abrasion resistant excellent
Hydrolyze stability inferior