How to effectively improve the breathability of non-woven fabrics?

How to effectively improve the breathability of non-woven fabrics? In the production and processing of non-woven fabrics, companies often attach great importance to the tensile strength of non-woven fabrics, but their breathability is often ignored by companies, resulting in the existence of non-woven fabrics produced and processed The problem of poor air permeability, so how to improve the air permeability of non-woven products has now become a concern of many non-woven fabric manufacturers. Non-woven fabrics are not only cheap, easy to decompose, and can be recycled, so they have a wide range of applications in the market. With the development of industry, there are more and more types of non-woven fabrics, and the scope of application is also increasing. The technical non-woven fabrics are usually single-layer design. Although they are breathable, they have a single structure, resulting in poor strength of the non-woven fabrics, thereby reducing the quality of the overall fabric. Now, people’s use of non-woven fabrics has also improved Many higher requirements, and the non-woven fabrics currently on the market obviously cannot meet people's needs. How to effectively improve the air permeability of non-woven fabrics? The air permeability of non-woven fabrics requires the amount of air passing through the non-woven fabric per unit time under a certain area and a certain pressure (20mm water column). The unit is now L/m2s the Lord. The air permeability of non-woven fabrics can be measured with the help of more professional instruments. The SG461-III type developed and produced can be used to measure the air permeability of non-woven fabrics. Do a general understanding of breathability.　　 Non-woven fabrics are all porous. Research shows that the pore size is closely related to the air permeability of the fabric. Generally, the larger the average pore size of similar fabrics, the better the air permeability. There are obvious differences in the pore size and air permeability of different types of fabrics. For the same type of fabric, due to the differences in fiber raw materials, yarn density, fabric weave, fabric warp and weft density, and fabric thickness, the fabric air permeability is also very different. Good air permeability is one of the important reasons why non-woven fabrics are widely used. Taking related products in the medical industry as an example, if non-woven fabrics have poor air permeability, plasters made from them cannot meet the normal requirements of the skin. Breathing causes the user to have allergic symptoms; the poor air permeability of band-aids and other medical tapes will cause the microbes near the wound to multiply, leading to wound infection; and the poor air permeability of protective clothing will greatly affect the comfort of wearing. Similar to medical products, the poor air permeability of other non-woven products will also bring many disadvantages to their use. Therefore, strengthening the testing of the air permeability of non-woven fabrics is one of the important measures to ensure that the relevant products produced by them meet the requirements of use. It is precisely because non-woven fabrics have good air permeability that they are widely used in the processing and production of various medical and health materials. If non-woven fabrics have poor air permeability, it will be difficult to meet people’s needs and will greatly reduce non-woven fabrics. The quality of non-woven fabrics must be guaranteed during the production process! Previous: What are the quality requirements of non-woven fabrics for packaging?