Stretch and Recovery After Repeated Extension
topic
Stretch and recovery testing extends elastic fabric specimens to defined elongation for specified duration or cycles, measuring immediate elastic recovery, delayed recovery, and permanent set after rest periods; bi-axial extension testing simultaneously applies stress in two perpendicular directions to simulate body movement loading on stretch garments.
Role
Ensures activewear, swimwear, compression hosiery, and elastic medical bandages maintain specified stretch and recovery performance throughout their wear life, validating that elastic yarn content and fabric construction deliver consistent fit and function over repeated use and laundering cycles.
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