Polyester Needle Punched Filter Material (High Porosity, Wear-Resistant for Dust Removal Applications)
What Is Polyester Needle Punched Filter Material?
A: Polyester needle punched filter material is a versatile filtration material made of 2D polyester fibers via needle punching and post-treatment processes. It comes in multiple functional variants (standard, easy-cleaning, antistatic, water/oil-repellent) to suit diverse dust removal and filtration scenarios, offering high porosity, durability, and targeted performance for industrial applications.
Performance and Characteristics
Core Advantages
HL500I Standard Polyester Needle Punched Filter Material
Material & Process: Made of 2D polyester fibers needle-punched on a polyester filament base fabric, with post-treatments (singing, pressing, shaping).
Advantages: High porosity, wear resistance, folding resistance, and good breathability-ideal as a widely used dust removal material.
HL500II Easy Cleaning Polyester Filter Material
Feature: Special shaping and finishing processes create a smooth, flat surface.
Advantages: Reduces dust adhesion; dust easily falls off during dust collector back-blowing, enhancing cleaning efficiency and filtration performance.
HL500III Antistatic Polyester Filter Material
Feature: Incorporates special conductive fibers in the base fabric to prevent charge accumulation.
Advantages: Antistatic performance, suitable for flammable/explosive high-concentration dust environments (e.g., coal dust, flour dust, chemical dust).
HL500IV Water and Oil Repellent Polyester Filter Material
Feature: Treated with PTFE waterproof technology to improve hydrophobicity.
Advantages: Excellent anti-condensation performance; resists bag pasting in high-moisture flue gas treatment, extending filter bag service life.
Function & Application
It is widely used in industrial dust removal and flue gas treatment scenarios:
Standard (HL500I): General dust removal systems.
Easy-cleaning (HL500II): Systems requiring frequent filter cleaning.
Antistatic (HL500III): Flammable/explosive dust environments (coal, chemical industries).
Water/oil-repellent (HL500IV): High-moisture flue gas treatment (e.g., humid industrial processes).
Model, Size and Technical Parameters
Polyester Needle Punched Filter Material Technical Parameters
| Filter material model | Thickness (mm) | Weight (g/m²) | Temp. resistance (℃) | Breaking strength (N/5×20cm) | Elongation (%) | Air permeability (m³/m²·s) |
|---|---|---|---|---|---|---|
| HL500 | 1.8 | 500±20 | ≤130 | Warp: 1000; Weft: 1200 | Warp/Weft: 50 | 150–250 |
| AL550 | 1.8 | 500±20 | ≤130 | Warp: 1100; Weft: 1250 | Warp/Weft: 50 | 150–250 |
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