Fluorine-containing monofilament filter cloth and method of making same
By combining a core-sheath composite fluorinated monofilament structure, microgrooves, coarse and fine weft guiding elements, and discontinuous island layers, the problems of easy clogging and flux attenuation of existing filter cloths are solved, achieving efficient filtration and stable use.
Patent Information
- Application Number
- CN202610688215.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-05-19
- Publication Date
- 2026-07-17
AI Technical Summary
Existing polyvinylidene fluoride monofilament filter cloths are prone to clogging when filtering fine particles and highly viscous filter cakes, and the backwash flux recovery is insufficient. Furthermore, the continuous coating is prone to cracking and peeling, resulting in increased filtration resistance and unstable filter cloth performance.
It adopts a core-sheath composite fluorinated monofilament structure, including a core layer and a sheath layer, with microgrooves on the outer periphery, filter weft yarns and guide weft yarns arranged in proportion, point fusion fixing points on the support surface, and discontinuous island layers on the filter surface, combined with melt spinning, weaving and heat setting processes.
It achieves corrosion resistance, easy peeling, backwash recovery, and pore size stability, making it suitable for industrial production. It reduces the probability of filter cake adhesion and clogging, and improves filtration throughput and long-term stability.
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