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Non-woven fabrics, also known as woven fabrics, are made of polyester fibers and other materials. It can be used in various industries, such as sound insulation, heat insulation, heating sheets and masks and other materials. What are the ways to improve the breathability of this material?
Non-woven fabrics are not only cheap and easy to distinguish, but can be recycled and used, so they are widely used in the market. With the development of the industry, it has more and more types, and the scope of use is also becoming wider and wider. In existing technologies, non-woven fabrics are usually designed as a single layer. Although breathable, the structure is monotonous, resulting in non-woven fabrics with poor strength, which reduces the quality of the entire fabric. Now, people have higher and higher requirements for using it, but the non-woven fabric on the market now obviously cannot meet people's needs.
The air permeability of non-woven fabric is the amount of air required to pass through the non-woven fabric per unit area under a given area and pressure. Now the units are mainly L/m2s. We can measure its air permeability with more professional equipment, develop and produce it can be used to measure the air permeability of non-woven fabrics, and the data obtained after analysis and testing can give us a general idea about the air permeability.
The structure of non-woven fabric is porous. Relevant studies have shown that pore size is closely related to the breathability of fabrics. Generally speaking, the larger the average pore size of a similar fabric, the better the air permeability. Different types of fabrics have significant differences in pore size and breathability. The air permeability of similar fabrics is also very different due to differences in fiber content, yarn density, fabric structure, fabric warp and weft density, and fabric thickness.
Source: Online/NAN
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