The production of filter cloth consists of more than a dozen processes, each of which is particularly important and indispensable. The high-quality filter cloth has high filtration accuracy, strong acid and alkali resistance, easy separation of the filter cake, and good air permeability, which means that the filter cloth has high stability. So what are the factors that affect the stability of the filter cloth?
1. The material of the yarn
The yarn of the filter cloth is made of pure cotton, polyester, polypropylene, acrylic, spandex and other materials. Because the material’s acid and alkali resistance and air permeability are different, it affects the stability of the filter cloth in the later stage. Among them, polypropylene and polyester are relatively widely used. For example, polypropylene monofilament filter cloth has good stability in liquid-solid separation, and is widely used in non-ferrous, chemical and other industries.
2. The level of craftsmanship
The filter cloth is woven through more than a dozen processes such as twisting and warping. During the entire production process of the filter cloth, tension acts on the filter cloth. If the tension is not well controlled, the stability of the filter cloth will be reduced. The different level of cloth production technology will directly affect the stability of the filter cloth in the later use, and thus affect the quality of the filter cloth.
3. Finishing of filter cloth
The finishing of the filter cloth has three main purposes: ensuring the stability of the filter cloth, improving the surface characteristics of the filter cloth, and adjusting the permeability of the filter cloth.