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chemical dust and coal dust is often explosive or cause fire, when the concentration reach its explosion limit and meet the static. Therefore the needle felt, which is used to make bags containing these dust must be antistatic.
Features:
Product name:anti-static polyester needle felt(blend steel fiber)
Material: polyester staple fiber, carbon, electric fiber, copper fiber
Scrim:polyester staple fiber woven cloth
Weight: 500gsm
Thickness: 1.6mm
Tensile strength (n/5 x 10cm): a) Warp: 1,000 b) Weft: 1,200
Tensile elongation: a) Warp: <20% b) Weft: <25%
Permeability (10-3m3/m2.S): 150 - 350
Working temperature (oC): a) Continuance: 130 b) Instant: 150
Surface treatment: singeing, calendering, heat setting
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