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Synthetic Woven Fabrics for Process Filtration

Selecting the optimum fabric for any application is made by considering not just the filtration requirements but also the demands on the materials exerted by the filter onto which the media will be mounted.

For example, the primary demand of a fabric to be used on a Horizontal Vacuum Belt filter would be resistance to stretch and creasing. Selection of a suitably stable fabric must be made when considering filtration properties for each specific application

The properties of a specific fabric are created by a variety of factors and technical personnel at DRM would consider each of the following factors when recommending the most appropriate fabric for your application.

Yarn Type

The 3 most common types of yarn used in the manufacture of woven filter media produce fabrics with their own unique characteristics which should be considered when selecting the most appropriate material.

1] Staple Fibre yarn
Produced by spinning fibres, cut in short lengths, to create yarns with appearance of wool or cotton.

This yarn can create a material with good mechanical resistance and high retention but has the disadvantage of having a potential to stretch whilst exhibiting poor cake release.

The potential for fibre migration would preclude the use of this type of yarn in the Pharmaceutical Industry and we would always seek to recommend alternatives for this industry

2] Multifilament or continuous Filament yarn
Fibres are extruded in continuous lengths and twisted together to create a yarn with the appearance of silk.

3] Monofilament yarn
A single extruded yarn with smooth surface.

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