Squat-Proof Opacity Setting It Correctly on a Tech Pack
Squat-Proof Opacity should be written into the tech pack with a value, a tolerance and a method. This removes ambiguity from quotations.
Definition to agree
resistance to becoming see-through under stretch. Working figures for Squat-Proof Opacity normally sit around above 96% opacity in mainstream production. Note AATCC 183 transmission with photography on the tech pack so nobody tests against an older revision.
Target value
Open the specification at above 96% opacity, adjusted to the end use. Record elastane content alongside Squat-Proof Opacity, because blends shift the measured value. A result outside above 96% opacity usually points to process drift rather than to the fibre itself.
Method line
Always pair the target with AATCC 183 transmission with photography so the mill and the laboratory test the same way. Keeping reference values for Squat-Proof Opacity lets suppliers quote without extra sampling rounds. Ask for conditioning details together with AATCC 183 transmission with photography, since both affect the reading.
Tolerance line
State plus or minus limits to keep production realistic while protecting the requirement. Working figures for Squat-Proof Opacity normally sit around above 96% opacity in mainstream production. Note AATCC 183 transmission with photography 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 Squat-Proof Opacity, because blends shift the measured value. A result outside above 96% opacity usually points to process drift rather than to the fibre itself.
