The membrane coated dust bag is coated with a membrane on the surface of the ordinary dust bag, which can improve the dust peelability of the dust bag, and can improve the filtering effect and the corrosion resistance of the filter bag, and extend the working life of the dust bag. Generally, polytetrafluoroethylene (PTFE) is used as the raw material, which is expanded into a microporous membrane. This membrane is compounded on various dust bag fabrics or paper substrates by a special process to make it a A new type of “microporous thin composite filter material” dust bag. The surface of the PTFE membrane is smooth and resistant to chemicals. It is laminated to the surface of ordinary filter materials. It has the chemical stability inherent in PTFE, the surface is extremely smooth, the friction coefficient is extremely low, and it is resistant to high and low temperatures. It will not be aging and durable, and it also has micro-porosity, breathability and hydrophobicity. This layer of membrane actually acts as a layer of disposable dust. It traps all the dust on the surface of the membrane to achieve surface filtration; and because the surface of the membrane is smooth, the dust trapped on the surface is easy to peel off, while improving the filter material Service life. Dust will not adhere to the surface of the bag of the dust collector, which avoids the phenomenon of scumming. As a result, the working life of the dust bag is extended and the cleaning cycle is also extended, saving costs and reducing production costs.
