Water and Oil Repellent Felt

During the running of dedusting bags, the gas includes moist, hygroscopicand deliquescent powders. It will create the water or oil membrane on the surface of powder toincrease the cohesion, but it will make the dust removal more difficult. Especially under the hightemperature, it will directly affect the normal work by dewfall due to the outer cool air.

Considering this, ordinary felt has to adapt the special treatment to improve the workingefficiency. In recent years, our company treats the polyester felt, polypropylene felt, anti-staticfelt, and Aramid felt with the active fluoride. Each type of felt has obtained the ideal water andoil repellent effect.

Not only the result achieves the national standard, but also the originalappearances are all well kept. After treatment, those filter material can form the molecularbarrier around the fiber, which may prevent water and dirt attaching and leaking. Comparedwith the common filter material, it has the water and oil repellent character; moreover, it alsohas the anti-cohesiveness and easiness for cake peeling off.

This product is especially forsouthern places of moist and rainy. Principles of water and oil repellentBeing dipped in the active fluoride mixed treatment fluid, some functional groups ofmacromolecule will react with treatment fluid, and forms the macromolecular chain. Thereaction will change the water and oil affinity of the fiber; reduce the surface tension of filtermaterial, until it becomes smaller than the surface tension of water and oil.

In this way, we getwater and oil repellent felt. Production processshredding --- combing --- Lapping ---pre-needle punching---needle punching --- calendering--- dipping in the treatment fluid--- curing --- heat setting --- finished product