Water permeability and Air permeability of fabric

Water permeability  is  ability  to  water drops  go through fabric.  This effect  based fabrics are  used to  make  towels,  nappies etc.  Low  water  permeable  clothes are used to  make umbrella.  Air permeability is ability  to go  air  through fabric.  High air permeable fabrics are  used to make summer cloths.  Because  of body  sweat  go through the fabric  then comfortable to wearer.  Low  air  permeable  fabrics are used to make air bags of vehicles.


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