French Terry Setting It Correctly on a Tech Pack
French Terry should be written into the tech pack with a value, a tolerance and a method. This removes ambiguity from quotations.
Definition to agree
fabric with loops on the reverse side. Working figures for French Terry normally sit around 240-320 GSM in mainstream production. Note terry and fleece machine on the tech pack so nobody tests against an older revision.
Target value
Open the specification at 240-320 GSM, adjusted to the end use. Record elastane content alongside French Terry, because blends shift the measured value. A result outside 240-320 GSM usually points to process drift rather than to the fibre itself.
Method line
Always pair the target with terry and fleece machine so the mill and the laboratory test the same way. Keeping reference values for French Terry lets suppliers quote without extra sampling rounds. Ask for conditioning details together with terry and fleece machine, since both affect the reading.
Tolerance line
State plus or minus limits to keep production realistic while protecting the requirement. Working figures for French Terry normally sit around 240-320 GSM in mainstream production. Note terry and fleece machine 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 French Terry, because blends shift the measured value. A result outside 240-320 GSM usually points to process drift rather than to the fibre itself.
