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Filter cloth, a filter medium woven from natural or synthetic fibers. Commonly used materials are cotton, hemp, wool, silk, asbestos fiber, glass fiber and some synthetic fibers. For example, cotton woven canvas, twill and woolen velvet. Broadly speaking, filter cloth also includes metal mesh or mesh.
For the filter cloth, the service life is not only the wear of the material itself, but also the corrosion of the filter cloth by the working substance. Therefore, the requirements for the industrial filter cloth are very high, and the main characteristics are as follows:
(1) The trapping effect after the solid object is good and the service life is long;
(2) The filtration speed is fast, the blockage is small, and the filtration speed is stable;
(3) The filter residue has good peelability, no expansion and contraction, and good dimensional stability.