Technical Parameters of Waterproof, Oil-Repellent and Antistatic Membrane-Coated Polyester Needle Punched Felt Dust Filter Bags

Parameters of 3-in-1 Polyester Needle Punched Felt Dust Filter Bags

Name:  3-in-1 Needle Punched Felt

Basis Weight:  500g/㎡

Material:  Polyester Fiber / Polyester Antistatic Base Cloth

Air Permeability:  80-100m/㎡/s

Warp Tensile Strength:  1000-1500N/5×20cm

Weft Tensile Strength:  1300-1600N/5×20cm

Warp Elongation:  ＜35%

Weft Elongation:  ＜55%

Resistance:  Surface 4.8 Ω, Volume 8.7 Ω·cm

Friction Potential:  Max 250 V, Avg 183 V

Surface Charge Density:  3.4 mC/㎡

Service Temperature:  ≤130℃

Filtration Velocity:  0.8-1.2m/min

Post-treatment:  Singeing, Matt Finishing or Teflon Coating