Product Overview
Filtration PET Nonwoven Fabric is a high-performance polyester-based material precision-engineered for air, liquid, and industrial dust filtration. Manufactured from 100% virgin polyester (PET) fibers via advanced needle-punching or thermal bonding technologies, it delivers exceptional mechanical strength, superior thermal stability, and consistent micron-rated filtration efficiency.
As a highly reliable filter medium or support and scrim layer, this material is widely utilized in demanding industrial filtration systems where durability, chemical resistance, and long-term performance stability are paramount.
Key Features
High Particle Retention: Engineered pore structures provide high-efficiency filtration of fine micro-particles.
Low Pressure Drop: Optimizes airflow balance, significantly reducing industrial ventilation energy consumption.
Exceptional Mechanical Tensile: High tensile strength and dimensional stability under high pressure and turbulent velocity.
Chemical & Thermal Resistance: Outstanding resistance to acids, alkalis, organic solvents, and continuous operating temperatures up to 150 degrees Celsius.
Excellent Processability: Easy to slit, die-cut, pleat, ultrasonic weld, or laminate with other substrates such as PTFE membranes.
No Fiber Shedding: Advanced heat-setting prevents fiber migration, ensuring downstream fluid purity.
Technical Specifications
| Technical Parameter | Specification Range | Test Standard |
| Material | 100% Polyester (PET) (Virgin or Recycled options available) | - |
| Technology | Needle-punched / Thermal Bonded | - |
| Basis Weight | 80 gsm to 500 gsm (Customizable) | ISO 9073-1 / ASTM D3776 |
| Thickness | 0.5 mm to 5.0 mm (Customizable) | ISO 9073-2 / ASTM D1777 |
| Width | Up to 3200 mm (Can be slit into customized rolls) | - |
| Air Permeability | 100 to 3000 L/m2/s (Tailored to micron rating) | ISO 9237 / ASTM D737 |
| Tensile Strength | MD greater than or equal to 300 N/5cm, CD greater than or equal to 250 N/5cm | ISO 9073-3 / ASTM D5035 |
| Operating Temperature | Continuous: up to 150 degrees Celsius, Instant Peak: 180 degrees Celsius | - |
| Surface Treatment | Plain, Calendered, Singed, Hydrophilic, Oleophobic, PTFE Lamination | - |
Industry Solutions & Applications
We deliver precision industrial solutions optimized for your specific machinery and processing lines:
Automotive Air & Cabin Filters: 90gsm to 130gsm high-stiffness thermal bonded PET designed for sharp, durable pleating on high-speed automatic pleating machines.
Industrial Dust Collection (Baghouses): 400gsm to 550gsm heavy-duty needle-punched felt with options for PTFE lamination or singed and calendered finishes for near-zero emission in cement, steel, and power plants.
Liquid & Water Treatment Filtration: 100gsm to 300gsm calibrated pore-size calendar fabrics for industrial wastewater, chemical liquids, and coolant filtration bags, guaranteeing zero fiber migration.
HVAC & Air Ventilation Systems: Medium-efficiency bag filters and spray booth ceiling filters featuring progressive density for maximized Dust Holding Capacity (DHC).
Functional Customization Options
We support full tailored modifications to meet specialized, harsh working conditions:
Anti-Static Finishing: Blended with premium conductive fibers (carbon or stainless steel) to prevent static discharge sparks in explosive dust environments.
Oleophobic & Hydrophobic Treatment: Chemical coatings that repel moisture, oils, and sticky substances, making filter cleaning or pulsing effortless.
Flame Retardant (FR): Meets stringent international fire safety standards for high-temperature airflow hazards.
Mechanical Dimensions: Custom slit widths, customized roll lengths, and specific multi-layer composite structures.
Sustainability & Green Supply Chain
Certified Recycled Fiber Available: We offer filtration media manufactured from Global Recycled Standard (GRS) certified recycled polyester fibers, helping brands meet carbon reduction and corporate sustainability targets.
Eco-Friendly Processing: 100% mechanical bonding (needle-punching) or thermal bonding without any hazardous chemical binders, ensuring the fabric is non-toxic and fully recyclable.
Manufacturing Process & Quality Control
In-line Thickness & Uniformity Check: Ensures consistency across the entire roll width to eliminate weak points.
Air Permeability & DP Test: Validates exact fluid resistance parameters before rewinding.
Mechanical Tensile Testing: Confirms high tearing resistance under severe industrial air or liquid pressures.
Batch Traceability: Every shipped roll comes with an internal Quality Certificate or COA linking directly to the raw material inputs.
Packaging & Delivery
Heavy-Duty Packaging: Wrapped inside tight heavy-duty PE protective film against moisture, sea-salt corrosion, and dust. The outer layer is packed in durable woven bags or secured on fumigation-free pallets.
Export Identification: Custom labeling showing Roll Number, Gross and Net Weight, Width, GSM, and Batch Number for seamless warehouse tracking.
Global Shipping: Fast-track scheduling for standard specifications, with predictable lead times for high-volume custom contract orders.
FAQ
Q: Can you customize the pore size or micron rating to match our existing filtration equipment?
A: Yes, absolutely. By altering fiber fineness (denier), adjusting needle penetration density, or control-calendering the thickness, we can precisely customize the air permeability and micron retention to match your target pressure drop and efficiency.
Q: Do you provide standard test reports or a Certificate of Analysis (COA) for shipments?
A: Quality consistency is our core strength. Every batch is thoroughly tested in our laboratory for GSM, thickness, tensile strength, and air permeability. A formal internal test report or COA is issued and sent to you prior to shipment.
Q: What is your Minimum Order Quantity (MOQ) and sample policy?
A: For standard specifications in stock, there is no strict MOQ. For customized specifications, the typical MOQ is 1,000 kg. We offer free sample rolls (usually 1 to 5 meters) for your lab testing and machine trial; you only cover the express shipping cost.
Q: How does your material perform under humid or mildly acidic industrial conditions?
A: 100% Polyester (PET) fiber naturally possesses excellent hydrolytic resistance compared to Nylon and superior acid resistance compared to Polypropylene. It maintains its full tensile strength and structure in mild organic acids, mineral acids, and high-humidity environments up to 150 degrees Celsius.
Q: How do you guarantee lot-to-lot consistency for long-term supply contracts?
A: Once a sample is approved, we freeze the production recipe (fiber blending ratio, needle speed, heating cylinder temperature) in our digital system. We retain counter-samples of every shipment for 2 years. If any deviation occurs, we can trace it back to the exact hour of production within minutes.
