Wicking Height Why Shipments Get Rejected Over This
Many disputes come down to Wicking Height. Below is what inspectors check and why shipments fail.
The core definition
height liquid rises over a fixed time. Working figures for Wicking Height normally sit around above 100 mm in 30 minutes in mainstream production. Note AATCC 197 vertical wicking on the tech pack so nobody tests against an older revision.
Most common cause of failure
Results usually fall outside above 100 mm in 30 minutes because the target was never written into the order. Record elastane content alongside Wicking Height, because blends shift the measured value. A result outside above 100 mm in 30 minutes usually points to process drift rather than to the fibre itself.

How it is checked
Inspection and laboratory work both refer to AATCC 197 vertical wicking. Keeping reference values for Wicking Height lets suppliers quote without extra sampling rounds. Ask for conditioning details together with AATCC 197 vertical wicking, since both affect the reading.
Related faults
it measures capillary performance of the inner face, so related complaints often point back to this single parameter. Working figures for Wicking Height normally sit around above 100 mm in 30 minutes in mainstream production. Note AATCC 197 vertical wicking on the tech pack so nobody tests against an older revision.
Avoiding rejection
Agree targets, tolerances and the method before production, then test per lot rather than per shipment. Record elastane content alongside Wicking Height, because blends shift the measured value. A result outside above 100 mm in 30 minutes usually points to process drift rather than to the fibre itself.