In the development process of non-woven fabric production and processing, enterprise management often attaches great importance to the tensile strength of non-woven fabric, but its air permeability is often ignored, which leads to the poor air permeability of non-woven fabric produced by social production and processing, so how can we improve the air permeability of non-woven fabric products.
Non woven fabrics are not only cheap, easy to decompose, but also recyclable, so they are widely used in the market. With the development of industry, there are more and more kinds of non-woven fabrics, and the application scope is also expanding. The existing non-woven technology is usually single-layer design, although it is breathable, but the structure is single, which leads to poor strength of non-woven fabrics, thus reducing the overall quality of fabrics, Now people's use of non-woven fabrics, also put forward higher and higher requirements for non-woven fabrics, and the current market of non-woven fabrics obviously can not meet people's needs。
How to effectively improve the air permeability of non-woven fabrics? The air permeability of non-woven fabric requires a certain area, a certain pressure (20 mm water column), and the amount of air passing through the non-woven fabric per unit time. The unit is now l / m2. S. We can use more professional instruments to measure, develop and produce sg461-iii, which can be used to measure the air permeability of non-woven fabrics. Through the analysis and detection of data, we can have a general understanding of the air permeability of non-woven fabrics.
The construction methods of non-woven fabrics are all porous. The research results of related problems show that the pore size and the air permeability of fabrics can be closely related to life. Generally, the larger the average pore size of similar fabrics, the better the air permeability. There are some obvious differences in the aperture and air permeability of different kinds of fabrics. The air permeability of the same kind of fabric is also different to a great extent because of the different fiber as raw material, yarn density, fabric weave, warp and weft density analysis and various fabric thickness.
Good air permeability is one of the important reasons why nonwovens are widely used. Take the related products in the medical industry as an example, if the air permeability of nonwovens is poor, the adhesive tape made of adhesive tape can not meet the normal inhalation of the skin, leading to allergic symptoms of users, and the poor air permeability of medical tape such as adhesive tape can lead to microbial reproduction near the wound, leading to wound infection, and the poor air permeability of protective clothing will greatly affect the comfort of wearing. Like medical products, the poor air permeability of other nonwovens will bring many adverse factors to their use. Therefore, strengthening the air permeability test of nonwovens is one of the important measures to ensure that the related products meet the use requirements.
Because of its good air permeability, non-woven fabrics are widely used in manufacturing various medical materials. If the air permeability of non-woven fabric is poor, it will be difficult to meet the needs of people, so we must ensure the air permeability of non-woven fabric in the production process!