Dimensional Stability Setting It Correctly on a Tech Pack
Dimensional Stability should be written into the tech pack with a value, a tolerance and a method. This removes ambiguity from quotations.
Definition to agree
size change after washing. Working figures for Dimensional Stability normally sit around under 3% length, 4% width in mainstream production. Note AATCC 135 home laundering on the tech pack so nobody tests against an older revision.
Target value
Open the specification at under 3% length, 4% width, adjusted to the end use. Record elastane content alongside Dimensional Stability, because blends shift the measured value. A result outside under 3% length, 4% width usually points to process drift rather than to the fibre itself.
Method line
Always pair the target with AATCC 135 home laundering so the mill and the laboratory test the same way. Keeping reference values for Dimensional Stability lets suppliers quote without extra sampling rounds. Ask for conditioning details together with AATCC 135 home laundering, since both affect the reading.
Tolerance line
State plus or minus limits to keep production realistic while protecting the requirement. Working figures for Dimensional Stability normally sit around under 3% length, 4% width in mainstream production. Note AATCC 135 home laundering 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 Dimensional Stability, because blends shift the measured value. A result outside under 3% length, 4% width usually points to process drift rather than to the fibre itself.
