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What is "Air Permeability" - Definition & Explanation

The volume of air passing through a fabric under pressure.
The porosity of a fabric as estimated by the ease with which air passes through it. Air permeability measures the warmth of blankets, the air resistance of parachute cloth, the wind resistance of sailcloth, etc. as measured on standard testing equipment.
The permeablity, or the ease with which air passes through material. Air porous ness determines such factors as the wind resistance of sailcloth, the air resistance of parachute cloth, and the effectiveness of different kinds of air filtration media. It is also a measure of warmness, or coolness of a fabric.
The degree to which a fabric, coating or laminate allows air to pass through its construction.

Some other terms

Some more terms:

A general classification of strong, firm, closely woven fabrics usually made with cotton. A heavier, open weave comprised of plied yarns (a number of single yarns, usually three, twisted together)....
A textile weave consisting of double threads interlaced to produce a checkered pattern similar to that of a woven basket. Also called hopsack or matt weave. The weave is 2/2. A variation of the plain...
Pronounced pee-kay is a cotton used in many polo shirts and is generally distinguished as a waffle weave. It is slightly thicker and is valued by golfers, as this fabric does not show perspiration...
A Short, Bodice-like Breast Garment Of Wide Popularity Among Women In India, From Early Times. Related To The Classic Cholaka Mentioned In Sanskrit Literature. The Garment Is Worn In Many Styles;...
A Blister Or Puffed Effect On The Surface Of The Fabric . It May Be The Result Of Chemical Treatment Of The Fabric Or The Result Of Using Different Yarns, Yarns Under Different Tension, Or Yarns Of...

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