Heat Setting Test Methods and Acceptable Limits
Heat Setting is verified through stenter setting parameters. Knowing how the method works avoids rejecting fabric that actually meets the requirement.
Method overview
stenter setting parameters defines sample size, conditioning and calculation, so values are comparable only within the same revision. Working figures for Heat Setting normally sit around typically 180-195 degrees in mainstream production. Note stenter setting parameters on the tech pack so nobody tests against an older revision.
Result interpretation
Read the value together with construction notes; typically 180-195 degrees is only meaningful for similar fabrics. Record elastane content alongside Heat Setting, because blends shift the measured value. A result outside typically 180-195 degrees usually points to process drift rather than to the fibre itself.
Typical limits
Buyers commonly write typically 180-195 degrees with a stated tolerance, then verify against stenter setting parameters. Keeping reference values for Heat Setting lets suppliers quote without extra sampling rounds. Ask for conditioning details together with stenter setting parameters, since both affect the reading.
Sources of variation
Conditioning time, operator technique and shade all influence the result. Working figures for Heat Setting normally sit around typically 180-195 degrees in mainstream production. Note stenter setting parameters 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 Heat Setting, because blends shift the measured value. A result outside typically 180-195 degrees usually points to process drift rather than to the fibre itself.
