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