In the diverse world of non-woven fabrics, ES non-woven fabrics and polyester short fiber non-woven fabrics play key roles in different fields due to their unique properties. A deeper understanding of the differences between the two can help us make better choices in practical applications.
The composition of raw materials is significantly different
The core material of ES nonwoven fabric is ES fiber, which is a polyolefin composite fiber called “Ethylene Propylene Side By Side” in English. It has a two-component skin core structure, with a low melting point and softness in the skin layer, and a high melting point and strength in the core layer. This special structure allows ES fibers to melt and bond with the fibers during heat treatment, forming a stable non-woven fabric structure while maintaining good flexibility and fluffiness.
On the other hand, polyester short fiber non-woven fabric is mainly made of polyester (PET) short fibers, which are cut from polyethylene terephthalate after melt spinning. According to the source of raw materials, they can be divided into two categories: primary (derived from petroleum derivatives) and recycled (derived from recycled polyester materials). These short fibers typically have a length of around 38mm and a specific gravity of 1.38, possessing high strength, wear resistance, corrosion resistance, and other characteristics, laying the foundation for the performance of non-woven fabrics.
Each production process has its own advantages
The production process of ES non-woven fabric is rich and diverse, commonly including hot air bonding, hot rolling bonding, etc. Taking hot air bonding as an example, after the fibers are combed into a web, the hot air blown out by the drying equipment penetrates the web, causing the ES fiber skin to be heated and melted, achieving fiber to fiber bonding and producing non-woven fabric with high fluffiness and good elasticity. Hot rolling bonding is achieved by heating and applying pressure through rolling rolls to bond ES fibers, resulting in higher product strength.
The production of polyester staple fiber non-woven fabric generally involves first going through a loosening process to disperse the polyester staple fibers, then combing them to make their arrangement more orderly, and then interweaving the fibers through a disorderly process to form a uniform fiber web. Then, the non-woven fabric is made through processes such as laying the web and needle punching. The needling process uses needles to puncture the fiber mesh, intertwining and reinforcing the fibers, giving non-woven fabrics good strength and stability.
Significant performance differences
Physical performance
In terms of strength, polyester short fiber non-woven fabric relies on the high strength characteristics of polyester short fibers themselves, with a tensile strength of ≥ 35N/5cm in the longitudinal direction, ≥ 28N/5cm in the transverse direction, a tear strength of ≥ 10N in the longitudinal direction, and ≥ 8N in the transverse direction. It is not easily damaged when subjected to large external forces and is suitable for industrial filtration, geotechnical engineering and other fields that require high strength. ES non-woven fabric has relatively low strength, but due to its fiber structure and bonding method, it has excellent flexibility and elastic recovery ability, with a soft touch. It is widely used in hygiene products that require high softness and comfort, such as baby diapers and women’s sanitary napkins.
From the perspective of breathability, ES non-woven fabric has good breathability and permeability due to its fiber structure and fluffiness, which is conducive to the circulation of air and water vapor. It performs well in products such as insulation fillers that require temperature and humidity regulation. The air permeability of polyester short fiber non-woven fabric is usually between 100-500L/m ² · s (pressure difference of 125Pa). Although it can ensure air circulation, it is slightly inferior to ES non-woven fabric in some scenarios that pursue ultimate breathability.
Chemical properties
In terms of chemical stability, polyester short fiber non-woven fabric is resistant to various chemical substances such as acid and alkali erosion, and is widely used in chemical raw material packaging, pharmaceutical industry filtration, and other scenarios where chemical reagents are easily accessible. The chemical stability of ES non-woven fabric is also good, but due to the characteristics of the raw materials, its corrosion resistance is slightly inferior to that of polyester short fiber non-woven fabric in reinforced corrosive environments.
Special performance
Polyester short fiber non-woven fabric has anti gamma ray properties and obvious advantages in the field of medical supplies. It can be directly disinfected with gamma rays without affecting its physical properties and dimensional stability. It is used for disposable medical surgical bags, medical device packaging, etc. ES non-woven fabric does not have this characteristic, but it performs outstandingly in terms of thermal bonding. It can form a stable structure through thermal processing without the need for additional adhesives, and the production process is more environmentally friendly.
Each application field has its own strengths
ES non-woven fabric is commonly used in the medical and health field due to its softness, breathability, and good water permeability, such as making filter layers for masks, inner layers for surgical gowns, sanitary pads, etc., to enhance product comfort and hygiene performance. In thermal insulation products, fillers such as anti cold clothing, bedding, and baby sleeping bags showcase their advantages in fluffiness and warmth. In addition, it is also used for disposable tablecloths, napkins and other household items to meet daily usage needs.
Polyester short fiber non-woven fabric is widely used in the industrial field due to its high strength, wear resistance, and aging resistance. For example, it is an industrial filter material that can withstand erosion and wear when filtering fluids containing particulate impurities. In geotechnical engineering, it is used as drainage material for water conservancy projects, roadbed reinforcement material for railways and highways, anti erosion material for river embankments, etc., to ensure the stability and safety of the project. In the field of agriculture, anti grass cloth, insulation curtains, etc. can be made to help promote crop growth.
Conclusion
In summary, there are many differences between ES non-woven fabric and polyester short fiber non-woven fabric in terms of raw materials, production processes, performance, and applications. When choosing, it is necessary to consider various factors comprehensively based on the specific needs of the usage scenario and select the most suitable non-woven fabric material.
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: Aug-10-2025