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 versatile and high-performance material widely used across industrial, commercial, and consumer applications. Made from high-quality polyester (PET) fibers, this nonwoven fabric is engineered using advanced manufacturing techniques such as thermal bonding, spunbonding, and needlepunching. These methods create a uniform fiber network that provides superior tensile strength, dimensional stability, and long-term durability. Lightweight yet strong, polyester fiber nonwoven fabric delivers excellent breathability, heat resistance, and chemical stability, making it ideal for insulation, filtration, hygiene products, automotive components, packaging, and protective layers.
One of the key advantages of polyester fiber nonwoven fabric is its ability to be customized in thickness, density, fiber orientation, and surface treatment. This allows manufacturers to produce materials that meet specific performance requirements for diverse applications. Additionally, polyester fiber nonwoven fabric is eco-friendly, as it can be recycled and is compliant with environmental standards such as RoHS and REACH. Its combination of mechanical strength, thermal stability, and flexibility makes it a popular choice for industries requiring reliable, lightweight, and cost-effective materials.
Polyester fiber nonwoven fabric is characterized by precise specifications that ensure optimal performance. Common parameters include:
Material: 100% high-quality polyester (PET) fibers
Manufacturing Process: Thermal bonding, spunbonding, or needle punching
Thickness: 0.2 mm – 5.0 mm, customizable per application
Weight: 20 g/m² – 400 g/m², adjustable for different uses
Fiber Orientation: Random or oriented, based on mechanical strength needs
Tensile Strength: High longitudinal and transverse strength for stability
Elongation: Moderate flexibility to prevent cracking or tearing
Thermal Resistance: Continuous operating temperature up to 150°C
Moisture Absorption: Low water retention for consistent performance
Color: Natural white, grey, or custom colors available
Flame Retardancy: Optional flame-resistant variants for safety applications
Eco Compliance: Recyclable, RoHS, and REACH compliant
These specifications make polyester fiber nonwoven fabric suitable for demanding applications where performance, durability, and safety are essential.
Polyester fiber nonwoven fabric is widely used in a range of industries due to its unique combination of properties:
Insulation layers for transformers, motors, and generators
Dielectric barriers in high-voltage devices
Thermal protection for power supply units and battery packs
Insulation and soundproofing in electric and hybrid vehicles
Battery compartment liners and wiring harness protection
Vibration damping and cushioning materials
Air filters for HVAC systems and cleanrooms
Liquid filtration in water treatment and chemical processing
Reinforcement layers in composite materials
Disposable masks, gowns, and surgical drapes
Sanitary pads and diaper layers for softness and absorbency
Wipes and cleaning products requiring strong, non-linting material
Protective wrapping for delicate or sensitive components
Cushioning layers in packaging for electronics and fragile goods
Fire-retardant or moisture-resistant packaging materials
Polyester fiber nonwoven fabric can also be engineered for specialized applications such as flame-retardant, moisture-resistant, or high-temperature variants, expanding its use in safety-critical environments.
Proper handling and installation are crucial for maximizing the performance of polyester fiber nonwoven fabric. Follow these best practices:
Cutting and Shaping:
Use sharp scissors, rotary cutters, or laser cutting tools to achieve clean edges. Avoid excessive pulling or stretching to maintain fiber integrity.
Layering and Lamination:
When used as insulation or protective layers, stack multiple sheets as needed to meet performance requirements. Lamination with compatible adhesives may enhance structural stability.
Cleaning:
Keep the material free from dust, oil, and chemicals before installation. Compressed air or soft brushes can remove surface debris.
Storage:
Store rolls in a dry, ventilated environment away from direct sunlight and moisture to prevent degradation of mechanical and thermal properties.
Safety Precautions:
Wear gloves when cutting or handling large sheets to prevent injury. Avoid inhalation of fine fibers during processing, although polyester fibers are generally non-toxic.
Q1: What makes polyester fiber nonwoven fabric suitable for industrial applications?
A1: Its combination of tensile strength, thermal resistance, chemical stability, and lightweight construction ensures reliable performance across filtration, insulation, and protective uses.
Q2: Can polyester fiber nonwoven fabric be customized?
A2: Yes, thickness, weight, fiber orientation, surface treatment, and flame-retardant properties can be tailored to meet specific application requirements.
Q3: Is this fabric flame-retardant?
A3: Standard polyester fiber nonwoven fabric is heat-resistant, and flame-retardant variants are available for applications requiring fire safety compliance.
Q4: How does it compare to traditional woven fabrics or paper-based insulation?
A4: Polyester fiber nonwoven fabric offers superior uniformity, moisture resistance, tensile strength, and durability while being lighter and more flexible.
Q5: Is polyester fiber nonwoven fabric environmentally friendly?
A5: Yes, it is recyclable, RoHS and REACH compliant, and produced using energy-efficient processes, reducing environmental impact.
Q6: Can it be used in medical and hygiene products?
A6: Absolutely. Its softness, breathability, and non-linting properties make it ideal for disposable masks, surgical gowns, diapers, and sanitary products.
Q7: How should it be stored for long-term use?
A7: Rolls should be kept in a cool, dry, ventilated space, away from sunlight and high humidity, to maintain performance and prevent fiber degradation.
Lightweight and flexible yet durable and strong
Excellent thermal resistance and dimensional stability
Moisture and chemical resistance for consistent performance
Customizable specifications for diverse industrial and consumer applications
Environmentally friendly and recyclable
Cost-effective compared to traditional woven fabrics
Polyester Fiber Nonwoven Fabric is a highly versatile, durable, and eco-friendly material suitable for a wide range of industrial, commercial, and consumer applications. From electrical insulation and automotive components to filtration, hygiene, and packaging, its mechanical strength, thermal stability, and customizable properties make it a reliable solution for manufacturers and engineers. By following proper handling, installation, and storage guidelines, polyester fiber nonwoven fabric can maintain long-term performance, safety, and efficiency. With the growing demand for high-performance and sustainable materials, polyester fiber nonwoven fabric continues to be a leading choice for businesses seeking cost-effective, high-quality solutions.
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