Disperse Dyeing Test Methods and Acceptable Limits
Disperse Dyeing is verified through HT jet dyeing machine. Knowing how the method works avoids rejecting fabric that actually meets the requirement.
Method overview
HT jet dyeing machine defines sample size, conditioning and calculation, so values are comparable only within the same revision. 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.
Result interpretation
Read the value together with construction notes; high temperature route at 130 degrees is only meaningful for similar fabrics. 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.
Typical limits
Buyers commonly write high temperature route at 130 degrees with a stated tolerance, then verify against HT jet dyeing machine. 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.
Sources of variation
Conditioning time, operator technique and shade all influence the result. 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.
Documentation
Record the standard revision on every report, because older versions can differ from current practice. 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.
