Elastic Recovery Setting It Correctly on a Tech Pack
Elastic Recovery should be written into the tech pack with a value, a tolerance and a method. This removes ambiguity from quotations.
Definition to agree
how completely fabric returns after extension. Working figures for Elastic Recovery normally sit around above 90% after cycling in mainstream production. Note ISO 13934-1 recovery loop on the tech pack so nobody tests against an older revision.
Target value
Open the specification at above 90% after cycling, adjusted to the end use. Record elastane content alongside Elastic Recovery, because blends shift the measured value. A result outside above 90% after cycling usually points to process drift rather than to the fibre itself.
Method line
Always pair the target with ISO 13934-1 recovery loop so the mill and the laboratory test the same way. Keeping reference values for Elastic Recovery lets suppliers quote without extra sampling rounds. Ask for conditioning details together with ISO 13934-1 recovery loop, since both affect the reading.
Tolerance line
State plus or minus limits to keep production realistic while protecting the requirement. Working figures for Elastic Recovery normally sit around above 90% after cycling in mainstream production. Note ISO 13934-1 recovery loop 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 Elastic Recovery, because blends shift the measured value. A result outside above 90% after cycling usually points to process drift rather than to the fibre itself.
