Polypropylene needle felt filter cloth is one of the most commonly used materials for making liquid filter bags. Polypropylene needle felt is a specific type commonly used in industrial filtration applications. It is a non-woven fabric made by mechanically needling polypropylene fibers, which has good filtration performance and durability. This type of needle felt is mainly used for the filtration and separation of solid particles, liquids or gases. Its production process is similar to the general needle felting production, but the material of choice is polypropylene fiber.
- Material: Non Woven Polypropylene Fabric.
- Thickness: 2.0-3.8mm.
- Filtration accuracy: 0.2/1/5/10/25/50/100/150/200/300um.
- Color: White.
- Usage: Liquid Filter.
- Type: Non-woven Filter.
- Diameter & Length: Accept customization.
- Capacity: Capable of manufacturing standard PP needle felt 15,000 m²/day.
Learn More About Polypropylene Filter Bags
Description
Features of Polypropylene Needle Felt Filter Cloth
- Chemical Stability: It has strong chemical stability and can work in various chemical environments without being corroded.
- Abrasion Resistance: Polypropylene fiber is relatively wear-resistant, so that the filter needle felt can maintain good performance in long-term use.
- Low Water Absorption: It has very low water absorption, so it maintains stable filtration performance even in wet conditions.
- Dimensional Stability: It is less sensitive to changes in temperature and humidity, which helps filter needle felt maintain stable dimensions and performance in various environments.
- Ease of Cleaning: Since it does not pick up contaminants easily, it is relatively easy to clean.
Physical and Chemical Properties
| Weight(gs/m) | 500 | |
| Thickness(mm) | 2~3.8 | |
| Width(mm) | ≤2.2 m | |
| Finish treatment | Singeing, Calendaring, Heat setting, Coating. | |
| Air permeability(L/m2.s) | 150-200 | |
| Tensile strength(N/5 cm) | warp | ≥1700 |
| weft | ≥2200 | |
| Tensile elongation(%) | warp | ≤20 |
| weft | ≤30 | |
| Heat shrinkage(%) | warp | ≤1.5 |
| weft | ≤1.0 | |
| Temperature(°C/°F) | Continue | 90 /194 |
| Instant | 120 /248 | |
| Anti-acid | Excellent | |
| Anti-alkali | Excellent | |
| Anti-abrasion | Good | |
| hydrolysis stability | Excellent | |
Specifications of Polypropylene Needle Felt
| Para | Weight (g/sm) | Thickness (mm ) | Air Permeability (m3/m2/min) | Tensile Strength (N/5×20cm) | Tensile Elongation(%) | Operating Temp.(°C/℉) | Max Surge Temp.(°C/℉) | Suitable P.H. value | ||
| Model | / | / | / | Warp | Weft | Warp | Weft | / | / | / |
| PP-01 | 550 | 3.5 | 10 | 1000 | 1500 | 50 | 50 | 130/266(Dry Heat) | 150/302 (Dry Heat) | 1~12 |
| PP-05 | 400 | 2.5 | 20 | 500 | 1000 | 60 | 60 | 1~12 | ||
| PP-10 | 400 | 2.2 | 24 | 500 | 1000 | 80 | 80 | 1~12 | ||
| PP-25 | 400 | 3 | 35 | 500 | 1000 | 85 | 85 | 1~12 | ||
| PP-50 | 320 | 3.5 | 100 | 500 | 600 | 100 | 80 | 1~12 | ||
| PP-75 | 320 | 3.5 | 130 | 500 | 600 | 100 | 80 | 1~12 | ||
| PP-100 | 350 | 3.8 | 100 | 500 | 500 | 100 | 100 | 1~12 | ||
| PP-200 | 400 | 3.8 | 130 | 500 | 600 | 110 | 100 | 1~12 | ||
Polypropylene Needle Felt in Filmedia®
In addition to some of the advantages of ordinary needle-punched felt filter cloth, the high-quality polypropylene needle-punched felt produced by Filmedia® has better acid and alkali resistance and lower softening point than polyester fiber. It is used in smoke and dust temperatures below 100°C and Areas with high acidity and alkalinity. Used in conjunction with plate and frame rolling filters, vacuum suction filters, bag filters, centrifugal filters and other liquid filtration and separation equipment.
Post Processing
Post-processing of polypropylene needle felt involves various treatments to enhance its performance, durability, and suitability for specific applications.
- Heat Setting: Stabilizes the dimensions of the felt, reducing shrinkage and ensuring consistent thickness and density.
- Calendering: Increases the density and smoothness of the felt, which can enhance filtration efficiency.
- Singeing: Removes surface fibers and fuzz to create a smoother surface, reducing the potential for clogging and improving cake release in filtration applications.
- Coating: Enhances specific properties like chemical resistance, hydrophobicity, or filtration efficiency, such as PTFE (polytetrafluoroethylene) or other chemical-resistant materials.
Our Product Advantages
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| The fiber is thin | The surface area is large | The filtration coefficient is large | The adsorption effect is better |
Applications
- Air Filtration
Polypropylene needle felt is widely used in air filtration, such as air conditioning systems, clean rooms, ventilation systems, etc. It can effectively remove dust, smoke, pollen and other particulate matter in the air and improve air quality.
- Liquid Filtration
Polypropylene needle felt is widely used in liquid filtration, such as water treatment, chemical production, food and beverage production and other fields. It can effectively remove suspended matter, microorganisms, bacteria, etc. in the liquid to ensure the purity of the liquid.
- Dust Collection
In many industrial production processes, a large amount of dust will be generated, such as mining, metallurgy, wood processing, etc. It can effectively collect these dusts to prevent them from causing harm to the environment and the environment.
- Noise Control
It has good sound absorption and can be used in noise control fields, such as automotive interiors, building sound insulation, etc.
- Medical Field
It is also widely used in the medical field, such as medical masks, protective clothing, etc. It can effectively block the spread of viruses and bacteria and protect the safety of medical staff and patients.
- Agricultural Field
It can also be used in the agricultural field, such as soil improvement, plant protection, etc. It can effectively prevent the occurrence of pests and diseases and improve the yield and quality of crops.
