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what is melt blown non woven fabric

by:XINYU Non-woven     2023-11-26

What is Melt Blown Non-Woven Fabric?


Melt blown non-woven fabric is a versatile material used in various industries for its excellent filtration and absorption properties. It is manufactured by a unique process that involves melting thermoplastic polymers and then extruding them to form ultra-fine fibers. These fibers are then laid randomly to create a web-like structure, which is consolidated using mechanical, thermal, or chemical methods. This article will delve into the details of melt blown non-woven fabric, its manufacturing process, applications, advantages, and future prospects.

I. The Manufacturing Process:

To understand melt blown non-woven fabric, it is essential to explore its manufacturing process. It starts with the selection of suitable polymers, such as polypropylene (PP), polyethylene (PE), or polystyrene (PS). These polymers are melted and extruded through spinnerets, forming microscopic fibers ranging from 1 to 10 microns in diameter.

1. Polymer Selection:

The choice of polymer depends on the desired properties of the fabric, including filtration efficiency, tensile strength, and chemical resistance. Polypropylene, in particular, is widely preferred due to its low cost, availability, and exceptional filtration capabilities.

2. Extrusion:

The melted polymer is forced through tiny nozzle-like holes called spinnerets, which are arranged in a row. The high-velocity hot air or gas streams attenuate the extruded polymer, causing it to split into ultra-fine fibers. These fibers solidify as they cool down and are collected on a moving conveyor belt or drum, creating a non-woven fabric layer.

II. Properties and Characteristics:

Melt blown non-woven fabric possesses several unique properties that make it an ideal choice for various applications.

1. Filtration Efficiency:

The randomly-laid fibers and their ultra-fine diameter contribute to excellent filtration efficiency. Melt blown fabric can effectively capture and retain tiny particles, including fine dust, allergens, and microorganisms. Hence, it finds extensive use in air and liquid filtration systems.

2. Absorbency:

The porous nature of melt blown fabric allows it to absorb liquids quickly. This property makes it highly suitable for applications like oil spill cleanup, medical products (e.g., wound dressings and diapers), and in the automotive industry (e.g., as a spill barrier in fuel tanks).

3. Softness and Comfort:

The fine fibers of melt blown fabric offer a soft and comfortable feel. It is hypoallergenic and skin-friendly, making it appropriate for medical products, hygiene products, and clothing applications.

III. Applications:

Melt blown non-woven fabric finds applications in a wide range of industries due to its remarkable properties. Here are some notable applications:

1. Personal Protective Equipment (PPE):

Melt blown fabric is a critical component of face masks, protective clothing, and other PPE. Its high filtration efficiency helps in blocking harmful airborne particles, providing protection against pollutants, viruses, and bacteria.

2. Air and Liquid Filtration:

The filtration capabilities of melt blown fabric make it indispensable in air purifiers, HVAC systems, vacuum cleaner bags, and water filtration systems. It efficiently captures airborne particles, dust, pollen, and other pollutants, ensuring clean and healthy indoor environments.

3. Medical and Hygiene Products:

Melt blown fabric is extensively used in medical and hygiene products, including surgical masks, N95 respirators, medical gowns, absorbent pads, diapers, and sanitary napkins. Its excellent filtration and absorption properties make it highly reliable and safe for various medical applications.

4. Automotive Industry:

In the automotive industry, melt blown fabric is used for cabin air filters, engine air filters, and as a component of oil and fuel filters. Its ability to capture and retain contaminants helps in maintaining clean and efficient automotive systems.

5. Environmental Cleanup:

With its high absorbency, melt blown fabric is employed in oil spill cleanup operations. It can absorb petroleum-based substances, such as crude oil and diesel fuel, floating on water surfaces, thereby minimizing ecological damage.

IV. Advantages:

Melt blown non-woven fabric offers several advantages over traditional woven fabrics and other non-woven fabrics:

1. Lightweight and Cost-effective:

The manufacturing process of melt blown fabric makes it lightweight and cost-effective. It requires lesser raw materials in comparison to woven fabrics, reducing production costs.

2. Filtration Efficiency:

Its high filtration efficiency, combined with the ability to retain fine particles, sets it apart from other materials. Melt blown fabric allows for efficient trapping of pollutants and microorganisms, ensuring cleaner environments.

3. Versatility:

Melt blown fabric can be customized to meet specific application requirements. The choice of polymers, fiber diameter, pore size, and layer thickness can be tailored, enhancing its versatility.

4. Eco-Friendly:

Melt blown fabric is recyclable, contributing to sustainability efforts. Furthermore, its reduced energy consumption during production makes it environmentally friendly.

V. Future Prospects:

The demand for melt blown non-woven fabric is likely to witness significant growth in the future. With the ongoing COVID-19 pandemic, the need for high-quality face masks and protective equipment has surged, leading to increased production of melt blown fabric. The expanding applications, such as in environmental cleanup and automotive industry, further drive the market growth.


Melt blown non-woven fabric, with its exceptional filtration efficiency, absorption properties, and versatility, has proven to be an indispensable material in numerous industries. From PPE manufacturing to air and liquid filtration, medical and hygiene products, and environmental cleanup, its applications are diverse. With ongoing research and technological advancements, the future of melt blown non-woven fabric looks promising, ensuring safer, cleaner, and more sustainable solutions for a range of global challenges.

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