Product Specifications:
Thickness | Width |
0.03-0.15mm | 510-1500mm |
Product Color: Can be customized according to customer needs (minimum order quantity is 6 tons).
I. Product Introduction:
Our factory produces electrical polyester fiber nonwoven fabric (7031), which is made from polyester staple fiber (PET) using a thermal bonding method and mechanically carded into a web, resulting in oriented fiber distribution.
It features high heat resistance, excellent impregnation and dielectric properties, a uniform and smooth fabric surface, small thickness deviation, high tensile strength, and a neat appearance.
II. Specific Requirements:
1. Appearance:
The surface of the nonwoven fabric should be uniform and flat, neatly rolled, and free from damage and contamination. Neps and fiber bundles are permissible within the thickness tolerance range.
2. Dimensions:
(1) 7031 nonwoven fabric is supplied in rolls, each roll having a diameter of not less than 250mm, with no more than three sections per roll, the smallest section being not less than 100mm, and each section clearly marked. The inner diameter of the paper tube is 76mm.
(2) The maximum width of 7031 nonwoven fabric is 1560mm, with a permissible deviation of ±5mm.
(3) The thickness and permissible deviation of 7031 nonwoven fabric should conform to the provisions of Table 1.
(4) Other sizes and specifications of nonwoven fabric can be specified according to the contract.
(5) The physical and mechanical properties of the nonwoven fabric should conform to the relevant provisions of Table 1.
Table 1
Number | Performance | Unit | Required nominal thickness (mm) | 0.03 | 0.035 | 0.04 | 0.05 | 0.06 | 0.07 | 0.08 | 0.1 | 0.12 | 0.13 | 0.15 | |
1 | Quantitative | g/㎡ | 21 | 24 | 28 | 35 | 42 | 49 | 56 | 70 | 85 | 91 | 100 | ||
2 | Quantitative Inequality | ％ | ≤10 | ||||||||||||
3 | Apparent density | g/cm² | 0.65±0.10 0.70±0.10 | ||||||||||||
4 | Tensile strength | Vertical | N/50mm | ≥30 | ≥35 | ≥40 | ≥60 | ≥70 | ≥80 | ≥90 | ≥100 | ≥150 | ≥200 | ≥240 | |
Horizontal | Width | ≥6 | ≥8 | ≥10 | ≥20 | ≥22 | ≥25 | ≥27 | ≥30 | ≥50 | ≥70 | ≥100 | |||
5 | Elongation at break | Vertical | ％ | ≥6 | ≥6 | ≥6 | ≥6 | ≥6 | ≥8 | ≥8 | ≥10 | ≥10 | ≥10 | ≥10 | |
Horizontal | ％ | ≥3 | ≥3 | ≥3 | ≥3 | ≥3 | ≥5 | ≥5 | ≥5 | ≥5 | ≥8 | ≥8 | |||
6 | Thermal shrinkage rate | ％ | ≤4 ≤3 | ||||||||||||
Remark | Heat shrinkage test conditions：150℃，1 hour | ||||||||||||||
III. Physical and Mechanical Properties of 7031 Nonwoven Fabric
1. Packaging: Each roll of nonwoven fabric is wrapped in a plastic film, then an outer waterproof woven bag. The ends of the core are sealed with corresponding plastic cores. The inner tube is a 1.8cm thick high-pressure paper tube.
2. Marking: The outer packaging bag should be marked with the manufacturer, product name, model, specifications, batch number, net weight, production date, etc.
3. Storage: 7031 nonwoven fabric should be stored in a cool, dry, clean, and well-ventilated warehouse below 40℃. It should not be near fire sources or heating, and should not be exposed to direct sunlight. The shelf life is one year.
IV. Scope of application:
Widely used in composite materials (DMD, DM, DMDM), mica tape reinforcing materials, electrical laminates, insulating varnish cloth base fabric, and end wrapping of electrical appliances, transformers, and motor coils. It is also suitable for small and flexible cables, household electrical cables, communication optical cables, and can replace various types of paper insulation materials.
Polyester Fiber Nonwoven Fabric is a high-performance engineered material widely used across industrial, commercial, and consumer applications. Made from premium polyester (PET) fibers, this fabric is produced using advanced nonwoven manufacturing techniques such as thermal bonding, spunbonding, and needlepunching. Unlike traditional woven or knitted textiles, nonwoven fabrics are formed directly from fibers, providing a uniform structure with excellent mechanical strength, dimensional stability, and consistent thickness.
Polyester fiber nonwoven fabric is lightweight, flexible, and durable. Its exceptional properties include high tensile strength, excellent breathability, moisture resistance, chemical stability, and thermal resistance. This combination of features makes it suitable for applications requiring insulation, filtration, cushioning, protective layers, and hygiene products. The material can be engineered to meet specific needs, such as flame retardancy, high-temperature tolerance, water repellency, or enhanced filtration efficiency.
Environmentally, polyester fiber nonwoven fabrics are increasingly valued for their recyclability and energy-efficient production processes. They are often compliant with international standards such as RoHS and REACH, making them an eco-friendly choice for manufacturers seeking sustainable materials without compromising performance.
The performance and versatility of polyester fiber nonwoven fabric are defined by its precise specifications:
Material Composition: 100% high-quality polyester (PET) fibers
Manufacturing Process: Thermal bonding, spunbonding, melt-blown, or needle punching
Fabric Weight: 20 g/m² – 400 g/m² (adjustable per application)
Thickness: 0.2 mm – 5.0 mm (customizable for insulation, filtration, or cushioning)
Fiber Orientation: Random or oriented depending on tensile strength requirements
Tensile Strength: High longitudinal and transverse strength for durability
Elongation: Moderate flexibility to prevent tearing
Thermal Resistance: Up to 150°C continuous operation
Moisture Absorption: Low to moderate, depending on fiber type
Air Permeability: Adjustable for filtration or breathability applications
Flame Retardancy: Optional fire-retardant variants
Color: Natural white, grey, or custom colors available
Eco Compliance: Recyclable, RoHS and REACH compliant
These parameters ensure that polyester fiber nonwoven fabrics are suitable for a wide range of applications where mechanical strength, durability, and thermal stability are critical.
Polyester fiber nonwoven fabrics are used in diverse industries due to their multifunctional properties:
Insulation layers for motors, transformers, and generators
Dielectric barriers in high-voltage equipment
Thermal protection for power supplies, battery packs, and electronic devices
Soundproofing and vibration damping in vehicles
Insulation layers for battery compartments and wiring harnesses
Cabin air filters and interior linings
Air filters for HVAC systems, cleanrooms, and industrial environments
Liquid filtration for water treatment, chemical processing, and food industries
Oil-absorption pads and spill control materials
Geotextiles and industrial insulation layers
Disposable surgical gowns, masks, and drapes
Sanitary pads, diapers, and adult incontinence products
Wipes, swabs, and cleaning pads for personal or medical use
Hospital bedding and mattress covers
Protective wrapping for delicate or fragile items
Cushioning and padding in packaging applications
Flame-retardant or moisture-resistant packaging layers
Apparel interlinings and padding
Reusable shopping bags and tote bags
Furniture linings and upholstery backing
Polyester fiber nonwoven fabric can also be engineered for specialized functions, such as flame retardancy, moisture resistance, or high-temperature applications, making it suitable for critical safety and industrial requirements.
For optimal performance, proper handling and installation of polyester fiber nonwoven fabrics are essential:
Cutting and Shaping:
Use sharp scissors, rotary cutters, or laser cutting equipment for precise edges. Avoid stretching to maintain fiber integrity.
Layering and Lamination:
When used as insulation, filtration, or protective layers, stack multiple sheets as required. Heat lamination or adhesive bonding may enhance structural stability.
Cleaning:
Keep the material free from dust, oil, and chemicals prior to installation. Use soft brushes or compressed air to clean the surface.
Storage:
Store rolls in a dry, cool, and ventilated environment, away from direct sunlight, high humidity, or extreme temperatures to maintain fabric properties.
Safety Precautions:
Wear gloves when handling large rolls to prevent injury. Avoid inhaling fine fibers during processing; while generally safe, some synthetic fibers may irritate skin or respiratory systems.
Q1: What are the main advantages of polyester fiber nonwoven fabric over traditional woven fabrics?
A1: Polyester fiber nonwoven fabrics offer uniform structure, lightweight strength, customizable properties, excellent thermal and chemical resistance, and faster production compared to woven fabrics.
Q2: Can the fabric be customized?
A2: Yes. Weight, thickness, fiber orientation, surface treatment, color, and flame-retardant properties can all be tailored to meet specific industrial or consumer requirements.
Q3: Is polyester fiber nonwoven fabric flame-retardant?
A3: Standard polyester fiber nonwoven fabrics are heat-resistant, and fire-retardant variants can be manufactured for safety-critical applications.
Q4: Is it environmentally friendly?
A4: Yes, it is recyclable, RoHS and REACH compliant, and can be produced using energy-efficient manufacturing processes.
Q5: Can it be used for medical and hygiene products?
A5: Absolutely. Its softness, breathability, non-linting properties, and moisture management make it ideal for disposable masks, gowns, diapers, sanitary pads, and wipes.
Q6: How should it be stored for long-term use?
A6: Store rolls in a cool, dry, ventilated space, away from sunlight and moisture, to maintain mechanical and thermal properties.
Q7: How is it applied in filtration and insulation?
A7: Polyester fiber nonwoven fabric can be layered or laminated to achieve the required thickness and filtration efficiency. Its uniform fiber network ensures consistent airflow, liquid permeability, and insulation performance.
Lightweight, strong, and flexible
High tensile strength and durability
Excellent thermal resistance and dimensional stability
Moisture and chemical resistance
Customizable properties for diverse applications
Environmentally friendly and recyclable
Flame-retardant and high-temperature options available
Versatile across industries including automotive, electrical, filtration, hygiene, packaging, and construction
Polyester fiber nonwoven fabric is a highly versatile, durable, and environmentally responsible material suitable for a wide range of applications. Its unique combination of lightweight strength, thermal resistance, moisture and chemical stability, and customizable properties makes it indispensable for manufacturers, engineers, and designers. From electrical insulation and automotive components to medical, hygiene, filtration, and packaging solutions, polyester fiber nonwoven fabrics provide consistent performance, cost-effectiveness, and safety. By adhering to proper handling, installation, and storage guidelines, users can ensure long-term durability and functionality. With increasing demand for sustainable, high-performance materials, polyester fiber nonwoven fabric remains a leading choice for modern manufacturing and industrial applications.
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