Sunday, February 24, 2019

AIR PERMEABILITY OF WOVEN FABRIC, AIR POROSITY OF WOVEN FABRIC PROPERTIES

Air permeability of fabric: “The volume of air passed per second through per unit area of the fabric is called air permeability of fabric”It is measured in cubic centimetres per second per square centimetre (cm3/second/cm2).
It depends upon the count of yarn, construction of fabric and weight per square unit of the fabric. If the warp and the weft count of two fabrics are identical, then the fabric having more threads per square inch give poor air permeability than lower threads count fabric.
If the threads count per square inch of two fabrics is the same, then the fabric made of coarse count yarn gives poor air permeability. 


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