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