Disperse Dyeing How It Changes with Construction and Elastane Content
Disperse Dyeing 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 Disperse Dyeing normally sit around high temperature route at 130 degrees in mainstream production. Note HT jet dyeing 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 HT jet dyeing machine, so retest after any blending change. Record elastane content alongside Disperse Dyeing, because blends shift the measured value. A result outside high temperature route at 130 degrees 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 Disperse Dyeing lets suppliers quote without extra sampling rounds. Ask for conditioning details together with HT jet dyeing machine, since both affect the reading.
Typical range
Working values stay around high temperature route at 130 degrees for mainstream activewear. Working figures for Disperse Dyeing normally sit around high temperature route at 130 degrees in mainstream production. Note HT jet dyeing machine on the tech pack so nobody tests against an older revision.
Development advice
Change one variable at a time, then verify against HT jet dyeing machine before moving to the next sample round. Record elastane content alongside Disperse Dyeing, because blends shift the measured value. A result outside high temperature route at 130 degrees usually points to process drift rather than to the fibre itself.