Antistatic needle-punched filter felt is usually used in situations where it is necessary to filter tiny particles in the air or liquid, while also requiring the product to prevent static electricity accumulation. This type of filter felt usually uses special fiber materials or adds antistatic agents to ensure that during the filtration process, static electricity will not absorb more particles or cause harm to the product.
We use leading technology in the Anti-static needle felt and guarantee the stability of our products：
- Material: Polyester needle felt.
- High Filtration Efficiency: Reach to 99.5%.
- Long Working Life: >3000 hours.
- Surface Resistance(Ω.cm): 103-108.
- Anti-static types: Blending type, Cross type, Line type.
Description
Why use Anti-static Needle Felt?
Usually, when the concentration of industrial dust reaches a certain level (that is, the explosion limit), it is very easy to cause explosion and fire if it encounters factors such as electrostatic discharge sparks, such as: flour dust, chemical dust, coal dust, etc. If these dusts need to be collected by cloth bags, the manufactured filter bags are required to have anti-static function. In addition to the process of producing ordinary needle felt, the production of antistatic filter material also requires the incorporation of conductive fibers into the warp yarn of the base fabric for the production of needle felt or the mixing of conductive fibers into chemical fibers.
Comparison of properties of different antistatic needle felt materials
| Material | Conductivity | Temperature Resistance | Chemical Resistance | Abrasion Resistance | Durability |
| Polyester (PET) with Conductive Fibers | High | Up to 150°C (302°F) | Good | High | High |
| Polypropylene (PP) with Conductive Fibers | High | Up to 90*C (194°F) | Excellent | Moderate | Moderate |
| Polyimide (P84) | Moderate | Up to 260*C (500°F) | Very Good | High | High |
| PTFE (Polytetrafluoroethylene) | High | Up to 250*C (482°F) | Excellent | High | High |
| Aramid (Nomex) | Moderate | Up to 200*C (392°F) | Good | High | High |
Polyester antistatic 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 antistatic needle felt
01. Stripe Line Polyester Anti-static Needle Felt
| 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
| 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
| 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
Antistatic needle punched filter 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.
