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What is "Electret" - Definition & Explanation

A non-conductive polymeric material which can maintain a long-lived electrostatic charge. Polypropylene electret filtration fabrics conveniently combine the mechanical removal of particles with an electrostatic field, which materially increases the filtration efficiency.

Some other terms

Some more terms:

A flat piece of material covered with a special type of CARD CLOTHING, held in a horizontal position on the "flat top" type of CARDING MACHINE. Working in conjunction with a CARDING DRUM, it aids in...
A twill whose name is derived from the Latin word Granum, which refers to the grainy quality of the textile. This granular quality is achieved by a broken twill weave. It is made of a cotton warp and...
A unit of measure that describes the average staple fiber diameter in a lot of wool. Over he past 30 years, the Micron measurement has evolved to become the predominant term used commercially to...
In a woven fabric, the yarn running from selvage to selvage at right angles to the warp. Each crosswise length is called a pick. In the weaving process, the filling yarn is carried by the shuttle or...
Cotton, silk, wool, rayon, synthetics, and blends. The weave can be plain, twill, or rib, background often has a small design either jacquard or dobby made with warp floats on surface giving a...

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