Fleece Brush Back Test Methods and Acceptable Limits
Fleece Brush Back is verified through raising machine. Knowing how the method works avoids rejecting fabric that actually meets the requirement.
Method overview
raising machine defines sample size, conditioning and calculation, so values are comparable only within the same revision. Working figures for Fleece Brush Back normally sit around 260-340 GSM in mainstream production. Note raising machine on the tech pack so nobody tests against an older revision.
Result interpretation
Read the value together with construction notes; 260-340 GSM is only meaningful for similar fabrics. Record elastane content alongside Fleece Brush Back, because blends shift the measured value. A result outside 260-340 GSM usually points to process drift rather than to the fibre itself.
Typical limits
Buyers commonly write 260-340 GSM with a stated tolerance, then verify against raising machine. Keeping reference values for Fleece Brush Back lets suppliers quote without extra sampling rounds. Ask for conditioning details together with raising machine, since both affect the reading.
Sources of variation
Conditioning time, operator technique and shade all influence the result. Working figures for Fleece Brush Back normally sit around 260-340 GSM in mainstream production. Note raising 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 Fleece Brush Back, because blends shift the measured value. A result outside 260-340 GSM usually points to process drift rather than to the fibre itself.
