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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:

Silk warp and crepe twist silk filling with more ends than picks per inch. Has a soft hand, considerable luster, launders well, and is fairly sheer. Made of raw silk or rayon, it is easy to...
In societies with Jewish and / or Christian traditions, certain types of ceremonial clothing are associated with particular occasions. Birth Many Western religions welcome a new-born child into...
The coloring of greige goods or fibers with either natural or synthetic dyes. This may be done in many different ways depending on the type of fabric (or fiber), the type of dye and the desired...
A system of yarn formation, also known as wrap spinning, in which the feed stock (sliver or roving) is drafted, and the drafted twistless strand is wrapped with a yarn as it passes through a rotating...
A cylindrical or slightly tapered barrel, with or without flanges, for holding slubbings, rovings (q.v.) or yarns. (The term is usually qualified to indicate the purpose for which it is used, e.g....

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