The importance of adjusting the breathability of non woven fabrics
Non woven fabric, as a new type of environmentally friendly material, is becoming increasingly widely used in fields such as home, medical, and industrial applications. Among them, breathability is a very important performance indicator. If the breathability is poor, it may cause discomfort during product use, affecting the quality and sales of the product. Therefore, adjusting the breathability of non-woven fabrics is particularly important.
Methods for adjusting the breathability of nonwoven fabrics
Selection of raw materials
The most important factor affecting the breathability of non-woven fabrics is the raw materials. Generally speaking, the finer the fiber thickness, the better the breathability. Therefore, when selecting non-woven fabric raw materials, one can choose fibers that are thin and have large gaps, such as polyester fibers, polyamide fibers, etc.
Layout and density of fibers
The fiber layout and density directly affect the breathability of non-woven fabrics. In the manufacturing process of non-woven fabrics, the arrangement and interlacing of fibers also have a significant impact on their breathability. Generally speaking, the looser the fiber arrangement and the more interlaced the fibers, the easier it is for air to flow, thereby improving the breathability of non-woven fabrics. At the same time, the density should also be appropriate and not too high, otherwise it will affect the breathability of the non-woven fabric. In the production process, parameters such as fiber dispersion and nozzle pressure can be appropriately controlled to adjust the breathability of non-woven fabrics.
Use processing equipment with good breathability
In the manufacturing of non-woven fabrics, processing equipment is also an important factor affecting breathability. Therefore, in order to improve breathability, it is necessary to choose processing equipment with good breathability. For example, breathable holes can be added to the device, or good heating and drying processes can be used in the device to improve breathability.
Choose the appropriate processing technology
Different processing techniques can also affect the breathability of non-woven fabrics. Generally speaking, the use of processing techniques such as hot compression, needle punching, and wet pressing can improve the breathability of non-woven fabrics. For example, these processes can make the interlocking between fibers tighter, while avoiding excessive fiber open area and ensuring fiber breathability.
Techniques for subsequent processing
In addition to adjusting raw materials and production processes, subsequent processing is also an important step in improving the breathability of non-woven fabrics. For example, chemical processing, physical processing and other methods can be used to change the shape and structure of the non-woven fabric surface, making it more breathable. In addition, plastic microbeads can be used to increase porosity and enhance breathability.
In addition, other treatment methods include anaerobic treatment, oxidation treatment, and activation treatment. These methods can be used to specially treat fibers, thereby changing their surface chemical properties and improving their breathability.
Conclusion
Overall, optimizing the breathability of non-woven fabrics requires multiple aspects such as raw materials, production processes, and subsequent treatments. Under normal technical indicators, appropriate adjustments to raw materials, production processes, and subsequent treatments can continuously improve the breathability of non-woven fabrics, making them more suitable for application in various fields.
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: Oct-22-2024