DustPolyester filter bags are primarily made from polyester fibers through a needle-punching nonwoven process. They feature excellent wear resistance, acid and alkali resistance, and stable operation at temperatures up to 120 °C, making them suitable for dust filtration in medium-to-low-temperature environments.
We offer various post-treatment options, including membrane lamination, anti-static treatment, and oil- and water-repellent finishes, providing flexible customization services to meet diverse customer requirements.
The dust collector filter bag primarily consists of a bag opening, bag body, and bag bottom. The bag body is made from fibers through a needle-punch nonwoven process, forming a three-layer structure: fiber layer – base fabric – fiber layer.
When dust-laden airflow passes through the filter bag, dust is retained on the outer surface of the filter bag (surface filtration) or within the filter material (depth filtration), while clean air passes through the medium and is discharged through the outlet.
| Product model | PFB-PET | |
| Product name | Polyester filter bag | |
| Fiber | Polyester | |
| Basis weight (g/m2) | 500 | |
| Thickness (mm) | 1.8–2.1 | |
| Air permeability (L/m2·s) | 200–300 | |
| Breaking strength (N/5 × 20 cm) | Warp | ≥ 1104 |
| Weft | ≥ 1229 | |
| Elongation at break (%) | Warp | < 35 |
| Weft | < 50 | |
| Operating temperature (°C) | Continuous | 120 |
| Instantaneous | 150 | |
| Post-treatment process | Singeing, calendaring, membrane lamination, water and oil repellent, anti-static, etc. | |
