Anti-Static Needle-Punched Filter Felt
In baghouse dust collection systems, as dust particles travel through pipelines, accumulate on filter bags, and interact with one another, continuous friction, collision, stripping, and breakage inevitably generate and accumulate significant static charges on both the dust and the filter media surface. Dust collection filter bags made of anti-static needle-punched felt can resolve safety hazards caused by static electricity accumulation during industrial dust removal processes.
☑ Prevent electrostatic discharge sparks from igniting dust
☑ Improve filtration efficiency for ultrafine dust
Description
ilmedia® develops anti-static needle-punched felt filter media by customizing different materials and processing techniques according to the characteristics of various types of dust. In real industrial operating conditions, these products have demonstrated excellent electrostatic dissipation performance and stable operation. They significantly reduce dust accumulation and the risk of electrostatic discharge, thereby effectively improving system safety and filtration efficiency, and have achieved satisfactory results in a wide range of complex dust collection applications.
Mainstream Antistatic Processes
| Process Type | Technical Approach | Performance Characteristics | Cost & Value |
| Conductive Scrim Weaving | Conductive yarns (carbon, stainless steel, or bi-component conductive yarns) are woven into the warp of the scrim during needle felt production. | The conductive path is distributed in a grid pattern. The conductive effect and uniformity are average. | Low cost, suitable for conventional projects with standard explosion-proof requirements. |
| Stainless Steel Fiber Blending | Stainless steel fibers are uniformly blended with conventional chemical fibers into the face layer at a specific ratio (typically $\le$ 8%) before needle punching. | Forms an extremely dense and uniform conductive network. Offers the best performance, excellent wear resistance, and the longest lifespan. | Highest price, making it the premium choice for high-end industrial explosion-proofing. |
| Carbon / Bi-Component Fiber Blending | Carbon fibers or other bi-component conductive fibers are blended with conventional fibers into the face layer at a specific ratio (typically $\le$ 8%). | Delivers stable and uniform conductivity. The anti-static performance sits between the first two methods. | Highly cost-effective with wide market adoption. |
Antistatic Filter Media
01. Antistatic Polyester Needle-Punched Felt
High cost-effectiveness, high tensile strength, suitable for dry conditions at normal temperature (<130℃).
- Stripe Line Polyester Anti-static Needle Felt
| 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 |
- Blending Fiber Polyester Anti-static Needle Felt
| 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 |
- Cross Line Polyester Anti-static Needle Felt
| 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 |
02. Antistatic Acrylic Needle-Punched Felt
Excellent hydrolysis resistance and acid/alkali resistance, suitable for dust removal environments with medium temperature (<140℃) and some moisture and acid/alkali corrosion.
| Fiber | Acrylic staple fiber |
| Weight | 300 -600g/m² ±10% |
| Temperature (℃/℉) | Continue: 120/248, Instant: 140/284 |
| Air permeability(L/m².s) | 200-350 |
| Tensile strength(N/5cm) | warp |
| weft | |
| Tensile elongation(%) | warp |
| weft | |
| Heat shrinkage(%) | warp |
| weft | |
| Finish treatment | Singeing, Calendering, Heat setting |
Antistatic Aramid Needle-Punched Felt
Excellent high-temperature resistance (long-term 204℃, instantaneous 240℃) and abrasion resistance, suitable for complex working conditions involving high temperature, flammability, and explosiveness.
| Fiber | Aramid staple fiber | |
| Scrim | Aramid staple yarn, cross electric yarn | |
| Weight | g/m² | 500 |
| Thickness | mm | 2.2 |
| Width | m | ≤2,2 |
| Finish treatment | Singeing, Calendering, Heat setting | |
| Air permeability | l / m2 / s @200pa | 250 |
| Tensile strength | Warp | 800 |
| Weft | 900 | |
| Tensile elongation | Warp | 20 |
| Weft | 30 | |
| Temperature | ||
| Continuos temperature | C° | 204 |
| Instant temperature | C° | 240 |
| Chemical Properties | ||
| Anti-acid | Good | |
| Anti-alkali | Good | |
| Anti-abrasion | Excellent | |
| Hydrolysis stability | Good | |
Application Industries
- Coal mining crushing, screening, and conveying systems
- Coal-fired boilers and power plant dust collection
- Coke and coal gas production plants
- Chemical powder handling and conveying systems
- Resin and plastic powder production
- Dyes, pigments, and chemical additives
- Flour mills and starch plants
- Sugar powder processing
- Feed production systems
- Aluminum, magnesium, and zinc powder production and recovery
- Metal grinding and polishing dust collection
- Metallurgical workshop dust control
- Cement grinding systems
- Lime and gypsum powder handling
- High-dust industrial processes
- Active pharmaceutical ingredient (API) powder processing
- Traditional Chinese medicine powder handling
- High-purity powder filtration systems
- Wood powder processing and board cutting
- MDF/OSB production lines
- Paper pulp drying dust collection