Wicking Height Setting It Correctly on a Tech Pack
Wicking Height should be written into the tech pack with a value, a tolerance and a method. This removes ambiguity from quotations.
Definition to agree
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.
Target value
Open the specification at above 100 mm in 30 minutes, adjusted to the end use. 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.
Method line
Always pair the target with AATCC 197 vertical wicking so the mill and the laboratory test the same way. 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.
Tolerance line
State plus or minus limits to keep production realistic while protecting the requirement. 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.
Approval step
Approve the result on pre-production bulk rather than on development fabric only. 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.
