Anti-static polyester punched felt filter fabric is one of the most common materials used to make filter bags, which always used in environments prone to dust explosions.
Specifications
- Width: ≤2.2 m.
- Thickness: 1.7 mm.
- Weight: 300 -650g/m2 ±10%.
- Diameter & Length: Accept customization.
- Finish-treatment: Calendering, Heat setting, Singeing.
Description
Filmedia®, as one of the leading antistatic needle felt manufacturers in China, is committed to the development and production of high-performance filtration materials. By adopting advanced anti-static treatment technology, our products offer enhanced safety and reliability, especially in high-dust and potentially explosive environments.
The Importance of Anti-static Performance for Dust Collection Filter Bags
During the dust collection process, dust accumulates on the surface of the filter bag and rubs against it within a high-velocity airflow, which can easily generate static electricity. If not promptly discharged, this can lead to spark discharges, potentially triggering explosions or fires—particularly in environments containing flammable and explosive dusts, such as pulverized coal, flour, aluminum powder, and chemical powders. Therefore, the anti-static performance of filter bags is crucial; it not only enhances the safety of dust collection systems but also extends the service life of the equipment.
Product Features
Polyester anti-static needle felt has a wide range of uses in industrial applications. It has the following advantages:
- Excellent antistatic performance: Polyester antistatic needle felt has good antistatic performance through special process treatment or adding antistatic materials. It can effectively prevent static electricity accumulation and discharge, and is suitable for industrial environments that require antistatic.
- Wear resistance and durability: Polyester needle felt is made of polyester fiber, which has excellent wear resistance and durability. It is not easy to wear or deform after long-term use, and is suitable for long-term work in high-intensity use environments.
- Strong chemical stability: Polyester has good chemical stability, good acid and alkali resistance, and is not easily corroded by chemical substances. It is suitable for filtration and separation in a variety of industrial environments.
Types of Polyester Anti-static Needle Felt
Anti-static polyester needle-punched felt is characterized by its resistance to acids and weak alkalis, oxidation resistance, high tensile strength, excellent resistance to humid heat, resistance to mildew, and suitability for operation at elevated temperatures. Depending on specific application requirements, anti-static polyester needle-punched felts are manufactured by combining raw materials of varying specifications with diverse fabric structures, thereby yielding a range of products distinguished by their unique filtration performance and physical appearance.
01. Stripe Line Polyester Anti-static Needle Felt
Stripe line polyester anti-static needle felt is an anti-static filtration material featuring conductive yarns uniformly embedded in a striped pattern within a polyester needle felt base fabric. During high-airflow dust filtration processes, it continuously dissipates static electricity generated by friction, thereby preventing static accumulation that could trigger sparks or pose an explosion risk, while simultaneously maintaining excellent filtration efficiency, abrasion resistance, and structural stability.
Physical and Chemical Properties
| Product name | Anti-static polyester needle felt 500 g/m²(line) | |
| Product Code | ES-ASPE500L | |
| Physical properties | ||
| Fiber | Polyester staple fiber | |
| Scrim | Polyester staple yarn, electric yarn | |
| Weight | g/m² | 500 |
| Thickness | mm | 1.8 |
| Width | m | ≤2,2 |
| Finish treatment | Singeing, Calendering, Heat setting | |
| Air permeability | l / m2 / s @200pa | 200 ~ 350 |
| Tensile strength | Warp | 1100 |
| Weft | 1200 | |
| Tensile elongation | Warp | 15 |
| Weft | 20 | |
| Temperature | ||
| Continuos temperature | C° | 130 |
| Instant temperature | C° | 150 |
| Chemical Properties | ||
| Anti-acid | Middle | |
| Anti-alkali | Middle | |
| Anti-abrasion | Excellent | |
| Hydrolysis stability | Middle | |
02. Blending Fiber Polyester Anti-static Needle Felt
Blended-fiber polyester anti-static needle felt is an anti-static needle-punched felt material produced by uniformly blending conductive fibers with polyester fibers during the spinning or web-forming process. It features a more uniform and stable distribution of conductive properties, enabling the effective and rapid dissipation of static electricity generated during filtration, thereby mitigating the risk of dust explosions. Furthermore, it offers excellent filtration precision, abrasion resistance, and chemical resistance.
Physical and Chemical Properties
| Product name | Anti-static polyester needle felt 500 g/m² (blend fiber) | |
| Product Code | ES-ASPE500B | |
| Physical properties | ||
| Fiber | Polyestser staple fiber, copper coated fiber | |
| Scrim | Polyestser filament yarn | |
| Weight | g/m² | 500 |
| Thickness | mm | 1,8 |
| Width | mm | ≤2,2 |
| Finish treatment | Singeing, Calendering, Heat setting | |
| Air permeability | l / m2 / s @200pa | 200 ~ 350 |
| Tensile strength | Warp | 1100 |
| Weft | 1200 | |
| Tensile elongation | Warp | 15 |
| Weft | 20 | |
| Temperature | ||
| Continuos temperature | C° | 130 |
| Instant temperature | C° | 150 |
| Chemical Properties | ||
| Anti-acid | Middle | |
| Anti-alkali | Middle | |
| Anti-abrasion | Excellent | |
| Hydrolysis stability | Middle | |
03. Cross Line Polyester Anti-static Needle Felt
Cross-line polyester anti-static needle felt is an anti-static filtration material in which conductive fibers are embedded into a polyester needle-punched felt structure using a “cross-line” pattern. By establishing an interwoven conductive network, it achieves a more uniform and efficient capacity for dissipating static electricity. This enables it to continuously suppress static charge accumulation—thereby mitigating the risks of sparks and dust explosions—even under conditions involving high-dust airflow, while simultaneously maintaining excellent mechanical strength, filtration efficiency, and abrasion resistance.
Physical and Chemical Properties
| Product name | Anti-static polyester needle felt 500 g/m² (cross line) | |
| Product Code | ES-ASPE500X | |
| Physical properties | ||
| Fiber | Polyester staple fiber | |
| Scrim | polyester staple yarn, cross electric yarn | |
| Weight | g/m² | 500 |
| Thickness | mm | 1,8 |
| Width | m | ≤2,2 |
| Finish treatment | Singeing, Calendering, Heat setting | |
| Air permeability | l / m2 / s @200pa | 240 |
| Tensile strength | Warp | 1100 |
| Weft | 1200 | |
| Tensile elongation | Warp | 20 |
| Weft | 25 | |
| Temperature | ||
| Continuos temperature | C° | 130 |
| Instant temperature | C° | 150 |
| Chemical Properties | ||
| Anti-acid | Middle | |
| Anti-alkali | Middle | |
| Anti-abrasion | Excellent | |
| Hydrolysis stability | Middle | |
Applications
Anti-static needle felt is mainly used in dust bag products, the main application industries:
- Cement raw meal grinding, packaging and transportation links.
- Smelters (sintering machines, continuous casting).
- Mine (collects limestone powder).
- Non-ferrous metal factory (alumina transportation, electrolytic aluminum).
- Furniture factory (grinding workshop),
- Dust collection for grain processing,
- Dust collection in pharmaceutical and other industries.
