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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 process of producing a type of regenerated rayon fiber. In this process, the wood pulp or cotton liners are dissolved in an ammoniac copper oxide solution. Bemberg rayon is a type of Cuprammonium...
A Lightweight, Plain Weave, Crepe Fabric With A Pebbly Texture And Slightly Raspy Hand. Uses High Twist Yarns Which Alternate Between S And Z Twist Every Thread Or 2 In Both Warp And Weft . Used For...
A general class of plain weave, usually cotton, made with a colored warp (down) and white filling (across). Most often made using blue and white, but also available in stripes, checks and figured...
A man-made fiber, considered the strongest synthetic for upholstery fabric. Offering the best resistance to abrasion and soil: offers a cool soft feeling. Good cleanabilty characteristics. Nylon...
A fabric with a crinkied or puckered affect, generally in the direction to the warp, which is created either by tension weaving or through the application of a caustic soda solution which shrinks...

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