Filtration Fabrics for purification

Filtration Fabrics
Filtration Fabrics are those materials with the help of those, purification process is practiced. On macro level it can be categorized in woven filtration fabric and non woven fabric.

A-Non Woven Fabric-
In filtration operation a non woven filtration fabrics can be typically described as a random fibrous web. In this type of filtration media sedimentation is done either by mechanically or chemically. Normally non woven fabric makers provide filtration fabric from the capability of 1 to 500 micron. Below rating of 10 to 15 micron, the filtration fabric is proficient to trap crystals of finer micron ratings. The micron status is dependent significantly on the check procedure by which the company rates the media and whether the rating is liquid or air. Because ratings are may be diverse from one manufacturer to another. So user has to care when comparing filtration fabrics of one manufacturer to another. It can be of big variations. So it important to ask the non woven producer 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 dust keeping capacity, flow rates and differential pressure data.

Characteristics of Non woven Filtration Fabrics-

Non woven fabric are broadly regarded as sheet or web structures attached collectively by sediment fiber or filaments (and by perforating films) mechanically, thermally or chemically. The features of non woven fabric are flat, porous sheets that are made directly from separate fibers or from molten plastic or plastic film. They are not from weaving or knitting and they do not need turning the fibers to yarn.

The filtration fabrics of these varieties 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 instance 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 suitable for different jobs, while achieving a good balance between product use-life and cost. They can mimic the look, texture and strength of a woven fabric and can be as bulky as the thickest paddings. In combination with other components they deliver a spectrum of goods with various characteristics, and are used alone or as components of apparel, home furnishings, and health care, engineering, industrial and consumer items.

B- Woven Filtration Fabrics-
Woven typed Filtration Fabrics are consists of two sets of yarns.
One set of yarns runs as warp and other runs along the length of the fabric. The other set of yarns the weft is perpendicular to the warp. Woven fabrics are held jointly by weaving the warp and the fill yarns over and under each other.
The woven Filtration Fabrics are cloth formed by knitting. They stretch only in the bias way, unless the threads are elastic.

Characteristics of Woven Filtration Fabrics:-
Woven Fabrics do not stretch. It expands only axis sides. Woven Filtration fabrics are formed of fibers which run direct at ninety degree angles to the other. Knitted fabrics have circles of fiber that permits the fabric to stretch. The amount of tension and routes are variables. A knit may expand in one direction or it may stretch out in the two directions. This is an important factor when selecting fabric for a specific usage.

The writer is a specialist of Filtration Fabrics, and presently working in Amrit Filtration Equipments a known producer of geotextile products like non woven fabric. Filtration Fabrics is a quality device for filtration process