These are single filaments extruded from molten polymer through a specially engineered spinneret and then drawn through a series of rollers to orientate the molecules and thus provide the thread with the desired stress-strain characteristics. The monofilament are usually round in cross-section although other profiles are possible. The diameter may be as large as 0.8mm (perhaps large in special cases) but for most polyester mesh applications it is usually in the range 0.1-0.3mm.

    

Polyester mesh produced from monofilament are characterized by their resistance to blinding, their high throughput and their ability to discharge filter cakes cleanly and efficiently at the end of the filtration cycle. However, in critical filtration applications, where the particle size is extremely small and where maximum filtrate clarity is required, they do not always provide the necessary retention efficiency, even when crammed closely together into a tightly woven construction and subjected to an intensive calendaring operation.

For filter presses, small horizontal belt, tipping pan, disc and rotary drum filters, polyester mesh are usually in the weight range 200-450g. On the other hand, for heavy duty operations where greater throughput is required, e.g. horizontal belt and rotary drum (belt discharge) filters involving thicker diameters and hence more open constructions, the weight range may be up to 1500g. They may also be woven in widths of up to 8m for seamless operation on these filters.

Anna
Position: sales
Hebei Defeng Polyester Fiber Co., Ltd
Add: Jingjiu Railway west, wugong town, Raoyang County
TEL: 86-311-67699480
FAX: 86-311-67699480
Website: www.china-polyestermesh.com
E-mail:anna@china-polyestermesh.com

Tag: polyester mesh