OEKO-TEX Standard 100 How It Changes with Construction and Elastane Content
OEKO-TEX Standard 100 does not stay constant when construction changes. Understanding the direction of change helps during development.
Effect of knit structure
Loop length and density move results first, usually before any yarn change is made. Working figures for OEKO-TEX Standard 100 normally sit around four product classes in mainstream production. Note annual laboratory testing and audit on the tech pack so nobody tests against an older revision.
Effect of elastane content
More elastane raises recovery but changes the value measured by annual laboratory testing and audit, so retest after any blending change. Record elastane content alongside OEKO-TEX Standard 100, because blends shift the measured value. A result outside four product classes usually points to process drift rather than to the fibre itself.
Effect of finishing
Heat setting and softeners shift results, which explains differences between a hand sample and bulk. Keeping reference values for OEKO-TEX Standard 100 lets suppliers quote without extra sampling rounds. Ask for conditioning details together with annual laboratory testing and audit, since both affect the reading.
Typical range
Working values stay around four product classes for mainstream activewear. Working figures for OEKO-TEX Standard 100 normally sit around four product classes in mainstream production. Note annual laboratory testing and audit on the tech pack so nobody tests against an older revision.
Development advice
Change one variable at a time, then verify against annual laboratory testing and audit before moving to the next sample round. Record elastane content alongside OEKO-TEX Standard 100, because blends shift the measured value. A result outside four product classes usually points to process drift rather than to the fibre itself.
