As the lifeline of power transmission and signal transmission, the operation safety of cables is directly related to the stability of the power system, orderly industrial production, and normal residential life. The cable wrapping material, as the “protective jacket” of the cable, undertakes the important mission of insulation, anti-corrosion, moisture-proof, and wear-resistant, directly determining the service life and operational safety of the cable. Among numerous cable wrapping materials, polyester spunbond fabric has become the preferred material for cable wrapping in fields such as power, communication, and industry due to its excellent insulation performance, strong corrosion resistance, lightweight, toughness, and environmental friendliness, providing protection for various types of cables. Today, we will comprehensively analyze the core performance and application value of this cable winding “protective expert”.
Why choose polyester spunbond fabric first for cable wrapping?
The core requirement of cable wrapping materials is “protection+adaptation”, which not only needs to resist the erosion of the external environment, ensure the insulation safety of the internal conductors of the cable, but also conforms to the bending characteristics of the cable, adapts to different laying scenarios, and has sufficient durability to avoid damage and aging during long-term use. Traditional cable wrapping materials such as non-woven fabric and plastic film often have obvious shortcomings: ordinary non-woven fabric has insufficient insulation, is prone to moisture absorption, and is prone to aging and damage after long-term use; Plastic film has poor flexibility and is prone to cracking, making it unsuitable for cable bending and laying. Its corrosion resistance is limited, and it is prone to aging and failure in complex environments.
The emergence of polyester spunbond fabric for cable wrapping has precisely solved these industry pain points. It is made from 100% high-quality polyester chips and processed through spunbond filament technology, without the need for chemical bonding media. It has inherent core characteristics of insulation, corrosion resistance, toughness, and lightweight, perfectly adapting to the strict requirements of cable winding. Whether it is insulation wrapping of power cables, moisture-proof protection of communication cables, or anti-corrosion wrapping of industrial cables, it can play a stable protective role, ensuring the insulation safety of cables and resisting external acid, alkali, moisture, wear and tear erosion, extending the service life of cables. Therefore, it is widely used in various cable production and laying scenarios.
Compared to other wrapping materials, polyester spunbond fabric also has the advantage of convenient construction, with soft texture and good extensibility. It can easily fit the circular and irregular structure of cables, wrap tightly without wrinkles, and does not affect the bending performance of cables. At the same time, it is lightweight and does not increase the burden of cable installation, greatly improving cable production and construction efficiency.
Excellent Insulation, Building a Strong Defense Line for Cable Safety
Insulation performance is the core indicator of cable wrapping materials, which directly affects the safety of cable operation and avoids safety hazards such as leakage and short circuit. The insulation performance of polyester spunbond cloth used for cable wrapping is particularly outstanding. With the insulation characteristics of polyester fibers themselves and the dense fiber structure formed by spunbond technology, efficient insulation protection is achieved, ensuring the safety of the internal conductors of the cable in all aspects.
After professional testing, the volume resistivity of polyester spunbond cloth used for cable wrapping can reach 10 ¹³ -10 ¹⁵ Ω· cm, with a breakdown voltage of ≥ 25kV/mm, far exceeding the insulation standard of ordinary wrapping materials. It can effectively block current conduction, prevent internal conductors of the cable from contacting the outside world, and prevent faults such as leakage and short circuit from occurring. Even in humid environments, its insulation performance can remain stable with a moisture absorption rate of ≤ 0.5%, and its insulation performance will not decrease due to moisture absorption. It is suitable for various complex installation scenarios such as outdoor, underground, and humid workshops.
In addition, it also has good arc resistance performance, which is not easy to burn and does not produce molten droplets under the action of an arc. It can effectively resist arc erosion, avoid cable damage caused by an arc, and further improve the safety of cable operation. This excellent insulation performance makes it widely used in insulation wrapping of various types of cables such as medium and high voltage power cables, communication cables, control cables, etc., becoming the “core barrier” for cable insulation protection.
Super corrosion resistance, suitable for complex and harsh environments
The laying scenarios of cables are complex and diverse, including outdoor exposure to sunlight, underground humidity, acid and alkali corrosion in industrial plants, and salt spray erosion in marine environments, all of which can cause serious damage to the wrapping materials and shorten the service life of cables. Polyester spunbond fabric used for cable wrapping has excellent chemical stability and super strong corrosion resistance, which can resist various harsh environments and maintain structural integrity and stable performance even after long-term use.
In acidic and alkaline environments, this material exhibits extremely strong resistance. After soaking in acidic and alkaline solutions with pH values of 2-13 for 180 days, its fracture strength retention rate is still higher than 90%, and there will be no dissolution, damage, aging or other phenomena. It is suitable for cable laying in industrial plants such as chemical and metallurgical industries and can effectively resist the erosion of industrial waste gas and liquid. In marine environments, it can resist salt spray and seawater corrosion, without mold or decay, and is suitable for wrapping protection of submarine cables and coastal cables.
At the same time, it also has good weather resistance and anti-aging performance. After 1500 hours of UV accelerated aging test, the strength retention rate still exceeds 88%. It can be used stably in the extreme temperature environment of -30 ℃ to 220 ℃. It is not afraid of long-term outdoor exposure, rain and snow erosion, and sharp changes in temperature difference between day and night. It can adapt to the cable laying needs in different regions and environments, significantly extend the service life of the cable, and reduce the later maintenance costs.
Strong and lightweight+environmentally friendly and convenient, improving adaptability and practicality
In addition to its core insulation and corrosion resistance, polyester spunbond fabric used for cable winding also has multiple additional advantages, further enhancing its adaptability and practicality in cable winding, making it the preferred material in the industry.
One of its outstanding advantages is its toughness and durability. Relying on the continuous spunbond filament structure, the longitudinal fracture strength of this material can reach over 500N/5cm, and the transverse strength is not less than 450N/5cm. It has outstanding tear and tensile resistance, and can resist external impacts such as pulling, rolling, etc. during cable production winding, transportation, and laying, avoiding damage and tearing and ensuring the integrity of the winding. At the same time, it has excellent wear resistance, which can reduce friction losses during cable laying and protect the outer sheath of the cable from damage.
Lightweight and convenient construction greatly improves efficiency. The weight of this material can be flexibly controlled between 20-150g/m ². It is lightweight, soft in texture, and does not require additional force during winding. It can quickly adhere to the surface of the cable without increasing the overall weight of the cable, making it easy to transport and lay cables. It is particularly suitable for complex construction scenarios such as high-altitude and underground. In addition, its production process is environmentally friendly and odorless, with no residual chemical additives, and will not cause harm to the environment and human health. It conforms to the development concept of green environmental protection and can be recycled, further reducing environmental costs.
Widely empowering and safeguarding the safe operation of various types of cables
With the comprehensive advantages of insulation, corrosion resistance, toughness, and convenience, polyester spunbond cloth for cable wrapping has been widely used in multiple fields such as power, communication, industry, and construction, covering the wrapping protection of various types of cables and safeguarding the safe operation of the “lifeline” of cables with strength.
In the field of power, it is mainly used for insulation wrapping and sheath protection of medium and high voltage power cables, overhead cables, and underground cables. It can not only ensure the insulation safety of cables, but also resist corrosion and wear in outdoor and underground environments, and assist in the stable transmission of power systems; In the field of communication, it can be used for moisture-proof and insulation wrapping of fiber optic cables and communication cables, protecting the stability of signal transmission, avoiding external interference and environmental erosion; In the industrial field, it is suitable for complex environments such as chemical, metallurgical, and mining, and is used for wrapping industrial control cables and equipment cables to resist erosion such as acid, alkali, dust, and wear, ensuring the orderly progress of industrial production.
In addition, it is also used for building cables in the field of construction, cable wrapping in rail transit, and protection of photovoltaic cables and wind power cables in the field of new energy. Whether indoors or outdoors, in ordinary environments or complex and harsh environments, it can play a stable protective role and become a “versatile protection expert” for cable wrapping.
Upgrading Domestic Production to Support High Quality Development of Cable Industry
With the rapid development of industries such as power, communication, and new energy, the performance requirements of cable winding materials in the cable industry are constantly increasing, and the market demand for polyester spunbond cloth for cable winding continues to grow. At present, domestic enterprises such as Shandong Taipeng and Anhui Jinchun have achieved large-scale and customized production of this product. With advanced production equipment and precise process control, the product performance benchmarks the international advanced level, and the cost-effectiveness advantage is significant, gradually breaking the foreign monopoly in the high-end cable winding material market.
In the future, as the cable industry develops towards high-end, green, and intelligent directions, higher requirements will be placed on the insulation performance, corrosion resistance, and environmental performance of winding materials. Polyester spunbond fabric used for cable wrapping will further enhance its performance boundaries through improved raw material formulations and process upgrades, developing products that are more suitable for high-end cables and complex environments. At the same time, it will promote the green upgrade of products, help the high-quality development of the cable industry, and provide more reliable protection for power transmission and signal transmission.
Dongguan Liansheng Non woven Technology Co., Ltd. was established in May 2020. It is a large-scale non-woven fabric production enterprise integrating research and development, production, and sales. It can produce various colors of PP spunbond non-woven fabrics with a width of less than 3.2 meters from 9 grams to 300 grams.
Post time: Mar-29-2026