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Domestic technical textiles Industry Segment-wise consumption of ...

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Filtration products<br />

Key application areas <strong>of</strong> filtration products<br />

The broad classification based on applications is given below:-<br />

• Industrial filters<br />

Industrial filters include vacuum filters, pressure filters, and dust collection equipment like<br />

bag filters etc used in industries like Cement, Pharma, Fertilizer, Food Processing and other<br />

process industries<br />

• Automotive filters<br />

Automotive filters are primarily <strong>of</strong> three types - Oil filter, Air filter and Fuel filter. The filters<br />

clean the oil, air and fuel by blocking dirt and other unwanted particles from entering the<br />

vehicle system. The <strong>technical</strong> textile used in the filters is cellulose and polyester non-woven<br />

filter paper.<br />

Product characteristics<br />

The filtration products can be classified into two major categories.<br />

• Liquid solid separation<br />

• Air-solid separation.<br />

The filter media used for Air-solid separation is primarily non woven fabric whereas Liquid solid<br />

separation involves woven filter media.<br />

Fabric type<br />

WEIGHT<br />

/ SQ.<br />

MTR.<br />

Woven Filter Media<br />

TENSILE STRENGTH<br />

(KGS.)<br />

AIR<br />

PERMEABILITY<br />

WARP WEFT (CU.FT/SEC)<br />

Polypropylene spun<br />

fabric<br />

Polypropylene<br />

280 - 650 200 - 426 140 - 350 0.97 - 0.20<br />

Multi filament fabric 275 - 450 295 - 500 145 - 400 0.5 - 0.13<br />

Polyester spun fabric 360 - 670 325 - 600 250 - 308 0.20 - 0.109<br />

Nylon filament fabric 330 - 450 310 - 548 275 - 414 0.60 - 0.23<br />

Cotton fabric 400 - 830 135 - 320 110 - 225 0.30 - 0.08

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