As we all know, needle felt is one of dust bag, when using dust, it is also used more. The following is a brief introduction by Xiao Bian. It is about the needle felting.
In the production process of dust bag, acupuncture is one of the most used processes, and almost all of the dust bag used in the acupuncture process have this process. Since the type of dust bag is relatively large, density and elasticity have become important means in order to enhance the strength of the needle felt when used. In general, we can know from the full name of the filter material whether the dust bag is a needle felt or not. The needle felt is a method of acupuncturing a fiber bundle in a dust bag to increase the fiber friction on the surface and inside of the dust bag. The strength of the web increases and the density increases, making the dust bag a non-woven dust bag with a certain strength, density and elasticity. The needled felt after needle punching has great help in the lifting function of the dust bag.
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