Bowing Frequently Asked Questions
Short answers to the questions buyers ask most often about Bowing.
What does it mean?
curvature of courses across fabric width. Working figures for Bowing normally sit around below 2% deviation in mainstream production. Note mill inspection standard on the tech pack so nobody tests against an older revision.
What value should be specified?
Start from below 2% deviation and adjust for the end use of the garment. Record elastane content alongside Bowing, because blends shift the measured value. A result outside below 2% deviation usually points to process drift rather than to the fibre itself.

How is it tested?
mill inspection standard. Keeping reference values for Bowing lets suppliers quote without extra sampling rounds. Ask for conditioning details together with mill inspection standard, 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 Bowing normally sit around below 2% deviation in mainstream production. Note mill inspection standard 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 Bowing, because blends shift the measured value. A result outside below 2% deviation usually points to process drift rather than to the fibre itself.