Filtration Fabrics for separation-process

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

A-Non Woven Filtration Fabrics-
In separation process a non woven filtration fabrics can be often described as a random fibrous web. In this style of filtration media sedimentation is completed either by mechanically or chemically. Generally non woven fabric makers supply filtration fabric from the capability of 1 to 500 micron. Below rating of 10 to 15 micron, the filtration fabric is capable to catch particles of finer micron ratings. The micron ranking is dependent significantly on the analysis procedure by which the maker rates the media and whether the rating is liquid or air. Because ratings are may be wide from one company to another. So user has to care when analyzing filtration fabrics of one company to another. It may be of huge differences. So it most important to ask the non woven manufacturer 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 filtration fabrics are broadly known as sheet or web structures bonded with each other by sediment ed fiber or filaments (and by perforating films) mechanically, thermally or chemically. The features 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 turning the fibers to yarn.

The filtration fabrics of these classes are engineered fabrics that may be of a limited life. They are single-used fabric or a very strong fabric. Non woven filtration fabrics provide particular 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 appropriate for specific jobs, while achieving a good balance between product use-life and expense. They can mimic the appearance, texture and strength of a woven fabric and can be as bulky as the thickest paddings. In blend with other components they provide a spectrum of goods with numerous qualities, and are used alone or as components 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 other runs along the length of the fabric. The various other 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 way, unless the threads are elastic.

Characteristics of Woven Filtration Fabrics:-
Woven Fabrics do not expand. It extends only diagonal sides. Woven Filtration fabrics are made of fibers which run direct at ninety degree angles to the other. Knitted fabrics have coils of fiber that permits the fabric to stretch. The amount of stretching and routes are variables. A knit may stretch out in one direction or it may stretch out in the two directions. This is an important aspect when choosing fabric for a particular usage.

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