Waterproof and oil proof filter bag material,polyester two proof (waterproof and oil proof) filter bag:
polyester waterproof and oil proof needle felt filter cloth, waterproof grade ≥ 4, oil proof grade ≥ 4.
In environments with high humidity, it can also ensure that the polyester waterproof and oil resistant filter bag is not easily blocked, greatly increasing the service life of the filter bag and reducing the difficulty of manual operation. At the same time, the surface of the polyester waterproof and oil resistant needle felt filter cloth is smooth and has good breathability, ensuring that the dust facing surface of the filter material is easy to peel off and the filter cake layer is easily formed.
The waterproof and oil resistant filter bag is made of polyester needle felt, treated with waterproof and oil resistant treatment, and selected with high-quality polyester fiber, which enhances its acid, alkali, and hydrolysis resistance. High strength and low elongation industrial silk is used as the base fabric to improve strength. It can form a molecular barrier around the fiber surface, preventing water and various oil stains from adhering and penetrating. Compared with ordinary filter bags, they not only have the characteristics of water and oil resistance, but also have anti adhesion and easy to peel and anti-static properties for dust.
The waterproof and oil proof filter bag is formed by using hydrophobic agent and oil repellent through dip rolling, pre drying and baking. After rapid drying, the hydrophobic agent and oil repellent are wrapped on the surface of the filter material fiber with a mesh, thus reducing the surface tension between water and oil and the filter bag, enabling the working fluid to react with some groups in the macromolecular structure of the filter material fiber, forming macromolecular chains, and changing the affinity between the fiber and water and oil, Reduce the surface tension of the filter material to less than the surface tension of water and oil, in order to achieve the goal of water repellency and oil prevention. This avoids the phenomenon of bag sticking and is suitable for dust collection of high humidity and oily gases.