Tear Strength Frequently Asked Questions
Short answers to the questions buyers ask most often about Tear Strength.
What does it mean?
force needed to continue a tear. Working figures for Tear Strength normally sit around above 10 N typical in mainstream production. Note ISO 13937-2 trouser tear on the tech pack so nobody tests against an older revision.
What value should be specified?
Start from above 10 N typical and adjust for the end use of the garment. Record elastane content alongside Tear Strength, because blends shift the measured value. A result outside above 10 N typical usually points to process drift rather than to the fibre itself.
How is it tested?
ISO 13937-2 trouser tear. Keeping reference values for Tear Strength lets suppliers quote without extra sampling rounds. Ask for conditioning details together with ISO 13937-2 trouser tear, since both affect the reading.
Why does it change between lots?
Process variables such as finishing temperature and elastane batch cause the normal spread of results. Working figures for Tear Strength normally sit around above 10 N typical in mainstream production. Note ISO 13937-2 trouser tear on the tech pack so nobody tests against an older revision.
Can results be compared across suppliers?
Only when the same standard revision and conditioning are used; otherwise measurements are not equivalent. Record elastane content alongside Tear Strength, because blends shift the measured value. A result outside above 10 N typical usually points to process drift rather than to the fibre itself.
