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Filtration Fabrics For Purification

Author : Sarthak Lohia

Filtration Fabrics are those textile with the help of those, separation process is carried out. On macro level it can be listed in woven filtration fabric and non woven fabric.

A-Non Woven Filtration Fabrics-
In purification operation a non woven fabric can be usually described as a random fibrous web. In this sort of filtration media sedimentation is accomplished either by mechanically or chemically. Normally non woven fabric companies offer filtration fabric from the capability of 1 to 500 micron. Below rating of 10 to 15 micron, the filtration fabric is qualified to capture substances of finer micron ratings. The micron status depends significantly on the check procedure by which the maker rates the media and whether the rating is liquid or air. Because rankings are may be wide from one producer to another. So user has to care when comparing filtration fabrics of one maker to another. It might be of big differences. So it important to ask the non woven fabric maker for a copy of the test procedure to check rate. In addition to the micron pour rating there are a number of other considerations including dirt handling capacity, flow rates and differential pressure data.

Characteristics of Non woven fabric-

Non woven fabric is broadly known as sheet or web structures bonded jointly by sediment fiber or filaments (and by perforating films) mechanically, thermally or chemically. The characteristics of non woven filtration fabrics are flat, porous sheets that are manufactured directly from separate fibers or from molten plastic or plastic film. They are not manufactured by weaving or knitting and they do not need converting the fibers to yarn.

The filtration fabrics of these groups are engineered fabrics that may be of a limited life. They are single-used fabric or a very strong fabric. Non woven fabric deliver specific functions for example absorbency, liquid repellency, resilience, stretch, softness, strength, flame retardancy, wash ability, cushioning, filtering, bacterial barrier and sterility. These features are often combined to create fabrics appropriate for different jobs, while achieving a good balance between product use-life and expenditure. They can mimic the physical appearance, texture and strength of a woven fabric and can be as bulky as the thickest paddings. In combination with other raw materials they deliver a spectrum of goods with numerous qualities, and are used independently or as parts of apparel , home furnishings, health care, engineering, industrial and consumer goods.

B- Woven Filtration Fabrics-
Woven typed Filtration Fabrics are made of two sets of yarns.
One set of yarns runs as warp and another runs along the length of the fabric. The extra set of yarns the weft is perpendicular to the warp. Woven fabrics are held together by weaving the warp and the fill yarns over and under each other.
The woven Filtration Fabrics are cloth produced by knitting. They expand only in the bias route, unless the threads are elastic.

Characteristics of Woven Filtration Fabrics:-
Woven Fabrics do not expand. It extends only axis sides. Woven Filtration fabrics are manufactured of fibers which run direct at ninety degree angles to one another. Knitted fabrics have coils of fiber that allows the fabric to stretch. The amount of expansion and paths are variables. A knit may expand in one direction or it may expand in the two directions. This is an important factor when selecting fabric for a particular practice.

Author's Resource Box

The writer is a specialist of Filtration Fabrics, and presently working in Amrit Filtration Equipments a prominent manufacturer of geotextile products like non woven fabric. Filtration Fabrics is an effective device for filtration process.

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Tags:   filtration fabrics, non woven fabric

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Submitted : 2011-05-10    Word Count : 591    Times Viewed: 841