(10) This woven fiber is widely chosen for its lightness, high strength and excellent resistance to most acids and alkalis. The sleekness of the fiber allows for excellent cake release. Since its moisture absorption is virtually nil, polypropylene is a good choice for an application such as dye production, where pigment changes can be made with only a light wash between batches. A latex border can be applied to the individual cloths to provide greater gasketing and sealing properties during the operation.
(3) Non-woven and calendered, polypropylene felt has all the attributes of polypropylene, including lightness, high strength and excellent resistance to most acids and alkalis, with the added benefit of improved cake release due to the calendered surface and greater gasketing or sealing properties due to the increase in the thickness of the cloth. To further improve its sealing qualities, a latex border can be applied to the individual cloths.
(5) Polyester filter and dust collection fabrics have very good resistance to chemicals, abrasion and dry heat degradation, plus excellent dimensional stability. Typical applications include dust collection, particularly in the cement industry; acid refining of ore; anode bags for electroplating; tubular battery separation fabrics.
(6) Polyester fibers are compressed and finishes are applied according to the process or application they are used for. All of the excellent characteristics of polyester apply to polyester felt, including good resistance to chemicals, abrasion and dry heat degradation, plus excellent dimensional stability. Polyester felt is most commonly used in dust collection processes, where the air flow is either forward or reverse pulse. The direction of the air flow dictates the finish required.
Polyester Felt is available in rolls… minimum order: 100 yards
(6) Because of its high abrasion resistance, nylon is used in filtration of abrasive dusts or wet abrasive solids at low temperatures. Nylon’s good elasticity makes it ideal for conditions where continuous flexing takes place. This fabric is a good choice in wet filtration applications, at low temperatures and in an alkaline atmosphere, for example in dyestuffs. Fabrics of nylon provide excellent cake release.
HEAT RESISTANCE: At up to 260°F, nylon has reasonably good dry heat resistance. It is superior to acetate, modacrylic and saran, but most other synthetics are superior to it. Nylon performs adequately in moist heat temperatures ranging up to 225°F; however its high initial tensile strength and abrasion resistance ...
(6) The use of cotton material for industrial filtration applications has declined over the years as the use of synthetics such as polypropylene and polyester has taken over most processes. Cotton used in a filter press operation will swell, creating a better seal and gasket effect during the process.
HEAT RESISTANCE: 225°F
All cotton styles available pre-shrunk or greige (unfinished).
Nomex® nylon was developed and registered by the E.I. DuPont Company for applications requiring good dimensional stability and excellent heat resistance. Nomex® nylon can be used at temperatures at which other fibers melt, and unlike glass, it is resistant to fluorides and has good abrasion and flex resistance. It has a wide range of filtration applications, including the cement industry, carbon black, non-ferrous metals and steel.
Heat Resistance: Nomex® nylon does not melt, but at temperatures above 700°F degradation sets in rapidly. In dry heat, up to and including 450°F, this fiber may be used satisfactorily, as long as there is no acid dew point problem. Small amounts of ...
Teflon® is the trade name registered by E.I. DuPont Company for fluorocarbon fibers which are exceptionally stable to both heat and chemicals. Teflon® fiber has no known solvents except certain perfluorinated organic liquids at temperatures above 570°F. The fiber is inert to concentrated mineral acid, organic acid, alkalis, oxidizing agents and organic solvents at elevated temperatures.
The fiber remains flexible and non-brittle from minus -100°F to plus +450°-500°F without degradation. Above this temperature some decomposition is slow. The gaseous decomposition products evolved at high temperatures are highly toxic and must be removed from the work areas through adequate ...
(8) Conductive (Anti-Static) cloth is a synthetic material, most often a polyester, woven throughout with stainless steel wire or carbonized filament to dissipate static electricity. Non-conductive material is also usually polyester, but does not contain these metal wires or filaments and is therefore, ineffective in the dissipation of static electricity. Conductive (Anti-Static) is more commonly used in industrial applications. The addition of the wires and filaments has no affect on micron or porosity readings of the cloth. It is simply added to dissipate static electricity during the use of the material. Conductive (Anti-Static) cloth is most commonly used in the manufacture of replacement bags, socks, chutes and sleeves for fluid bed ...
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