Meltblown Nonwoven Fabric Production Process

Meltblown nonwoven fabric is a type of fabric produced through the melt-blowing process. In the melt-blowing process, polymers are melted at high heat and sprayed through small holes to create fibers, which are then formed into a net-like structure using air or mechanical pressure.

The production process of meltblown nonwoven fabric can be broken down into several key steps.

●Material preparation. Initially, polymer materials like polypropylene and polyester must be gathered and subjected to heating and melting to transform into a molten liquid.

●Melt injection. Molten polymer is injected through spray nozzles, where the nozzle's size and arrangement influence the fibers' form and spread. The fibers are ejected at high speed and gradually cool and harden as they move through the air.

●Fiber formation. The molten polymer fibers gradually form a mesh-like structure in the air. This occurs as the fibers are ejected and affected by air resistance and collisions, causing them to intertwine and create a web.

●Thermal roller shaping. Once the fibers are formed, they are shaped using thermal rollers, which not only increase the strength of the fiber mesh but also adjust the fabric's thickness. The temperature and pressure of the rollers should be regulated based on the specific requirements.

●Coating treatment. During the production of melt-blown nonwoven fabric, a coating treatment can also be applied. This coating enhances the fabric's functionality, such as making it waterproof or anti-static. Coating is typically done after the thermal roller shaping process.

●Winding and cutting. The last step of the process involves winding the meltblown nonwoven fabric into rolls and cutting it to the required size. Winding simplifies storage and transport, while cutting ensures the fabric is sized according to specifications.

The production process of meltblown nonwoven fabric offers several advantages, including the following:

1. Efficient and fast. The meltblown process enables high-speed, continuous production, ensuring high efficiency.

2. Fiber fineness is controllable. By adjusting the diameter and arrangement of the nozzles, the fiber fineness of meltblown nonwoven fabric can be controlled to meet various application requirements.

3. Uniform mesh structure. Through the melt-blowing technique, fibers are able to form and interlace freely in the air, creating an evenly distributed mesh structure.

4. Versatile in functionality. Through processes like coating, melt-blown nonwoven fabric can be given additional features, including water resistance and anti-static capabilities.

5. Lightweight and soft. Meltblown nonwoven fabric, with its fine fibers, is characterized by being lightweight and soft, making it ideal for products that prioritize comfort.

Meltblown nonwoven fabric is highly versatile and finds applications across various industries. It is used in healthcare to produce protective products like masks and gowns, in home textiles like bedding and curtains, and in industrial applications such as filtration and noise reduction materials.

The meltblown process is an efficient and rapid technology for producing nonwoven fabrics with multiple functionalities and a wide range of applications. With ongoing technological progress and an expanding scope of use, the future of melt-blown nonwoven fabric appears very promising.