Elasticity and Recovery Testing for Stretch Knits
topic
Stretch and recovery testing of elastic knitted fabrics applies defined extension cycles to fabric specimens using tensile testing machines measuring extension force at defined elongation levels, recovery after load removal, and residual extension after repeated cycling according to ISO 4674 or BS 4952 methods, quantifying the elastane content performance through power at defined extension and permanent set after multiple stretch cycles.
Role
Characterises the stretch and recovery behaviour of elastane-containing knitted fabrics that determines the fit retention and compression performance of sportswear, underwear, and compression hosiery during wear, with elasticity and recovery testing providing the mechanical performance data needed to specify elastane content and structure requirements that achieve defined stretch and compression targets for functional elastic knitted garments.