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