Polyester Needle Felt Filter Cloth
Polyester Needle Felt Filter Cloth is a popular filtration material widely used in the dust collection and air filtration industry due to its versatility and cost-effectiveness.
Product Details
Polyester Needle Felt Filter Cloth is a type of non-woven filter material made from polyester fibers, which are synthetic fibers produced from polyethylene terephthalate (PET). The term “needle felt” refers to the process by which the cloth is produced. In this process, barbed needles repeatedly punch the polyester fibers, causing them to interlock and form a cohesive and sturdy fabric.
Key characteristics of Polyester Needle Felt Filter Cloth include:
- Durability: Polyester fibers are known for their strength and durability, which makes the needle felt resistant to wear and tear.
- Good Filtration Performance: The dense yet porous structure of the needle felt enables efficient filtration of particulate matter from air and gas streams.
- Moderate Temperature Resistance: Polyester needle felt can typically withstand continuous operating temperatures of up to 150°C (302°F), making it suitable for many industrial applications.
- Chemical Resistance: The material has good resistance to a wide range of chemicals, particularly to many solvents, oxidizing agents, and most organic and inorganic acids.
- High Porosity: The needle-punching process creates a high level of porosity, allowing for good air permeability and efficient dust release.
- Dimensional Stability: Polyester filter cloth maintains its shape and dimensions under standard operating conditions, ensuring the consistency and reliability of filtration.
- Cost-Effectiveness: Polyester is a relatively inexpensive material compared to other synthetic filter media, which makes it a popular choice for a variety of filtration applications.
Polyester Needle Felt Filter Cloth is commonly used in the production of filter bags for baghouse dust collectors. These filter bags are employed in various industries to capture and filter dust, particulates, and other contaminants from air and gas streams, such as in cement production, pharmaceutical manufacturing, food processing, and metalworking.
| Technical Parameters | ||||||
| Gram Weight (g/m²) | Thickness(mm) | Air Perm (m³/m².min) | Breaking Strength(N/20X5cm) | Elongation at Break(%) | ||
| Warp Direction | Weft Direction | Warp Direction | Weft Direction | |||
| 550 | 2.0 | 2-5 | ≥100 | ≥1300 | ≤25 | ≤50 |
| Continuous Temperature(°C) | Instantaneous Temperature(°C) | Acid Resistance | Alkali Resistance | Abrasion Resistance | Hydrolytic Stability | Post-Processing Method |
| 130 | 150 | Good | Normal | Excellent | Poor | Singeing or Calendering or PTFE Soak or Heat Setting or Laminating |
Polyester Needle Felt Filter Cloth is a versatile and widely used filtration material with a range of beneficial features for industrial applications. Here are some of the key features of Polyester Needle Felt Filter Cloth:
- Good Mechanical Strength: Polyester fibers are strong and durable, giving the needle felt high tensile strength and resistance to abrasion.
- Excellent Filtration Properties: The material has a high dust-holding capacity and good filtration efficiency, effectively capturing fine particulates.
- Moderate Temperature Resistance: Polyester needle felt can operate continuously at temperatures up to about 150°C (302°F), suitable for many medium-temperature applications.
- Chemical Resistance: It has good resistance to many chemicals, including solvents, oxidizing agents, and a wide range of both organic and inorganic acids.
- High Porosity: The needle-punching process results in a highly porous material that allows for excellent air permeability and efficient dust release during cleaning cycles.
- Dimensional Stability: The fabric maintains its form and size under normal operating conditions, which is crucial for maintaining the fit and performance of filter bags.
- Cost-Effective: Polyester is a cost-effective option compared to other synthetic filtration materials, offering a good balance between performance and price.
- Ease of Cleaning: The surface structure of the fibers facilitates the cleaning process, making it easier to remove dust cakes from the filter media.
- Moisture Resistance: Polyester fibers are resistant to moisture and do not absorb water, which helps maintain filtration efficiency in humid environments.
- Anti-Static Versions: For applications where static electricity is a concern, anti-static versions of polyester needle felt are available. These typically include conductive fibers to dissipate static charge.
Polyester Needle Felt Filter Cloth is extensively used for making filter bags in baghouse dust collectors across various industries, such as cement, metallurgy, pharmaceuticals, and food processing. Its combination of features makes it a reliable choice for air and gas filtration in industrial settings.