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Simona Vasile,Alexandra De Raeve,Benny Malengier,Joris Cools 한국섬유공학회 2019 Fibers and polymers Vol.20 No.4
This paper introduces a non-automatic device to apply biaxial stretch and investigates the effect of biaxial stretchand domestic washing on air permeability of polyamide-elastane knitted fabrics for sportswear. Air permeability of theselected fabrics significantly increased upon biaxial stretch, regardless the fabric type and stretch level (5 % or 10 %) applied. Generally, air permeability of relaxed fabrics decreased due to slight shrinkage that occurred upon washing, but domesticwashing was not found to have a statistical significant influence on air permeability of the selected fabrics. The manualdevice proposed applies stretch in one or two directions, it is robust and easy to handle, and fabric preparation is quitestraightforward. The fabric holder used in this study is particularly suited to the head of the air permeability tester and thelevel of stretch applied depends on type of fabric.