Bowing How It Changes with Construction and Elastane Content
Bowing 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 Bowing normally sit around below 2% deviation in mainstream production. Note mill inspection standard 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 mill inspection standard, so retest after any blending change. Record elastane content alongside Bowing, because blends shift the measured value. A result outside below 2% deviation 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 Bowing lets suppliers quote without extra sampling rounds. Ask for conditioning details together with mill inspection standard, since both affect the reading.
Typical range
Working values stay around below 2% deviation for mainstream activewear. Working figures for Bowing normally sit around below 2% deviation in mainstream production. Note mill inspection standard on the tech pack so nobody tests against an older revision.
Development advice
Change one variable at a time, then verify against mill inspection standard before moving to the next sample round. Record elastane content alongside Bowing, because blends shift the measured value. A result outside below 2% deviation usually points to process drift rather than to the fibre itself.
