Cover Factor Specification Targets for Buyers
Setting Cover Factor correctly on a tech pack prevents most later disputes. Targets belong on the page before the first fabric sample.
Where to write it
Place Cover Factor next to composition and weight so all three are quoted as one package. Working figures for Cover Factor normally sit around higher is more opaque in mainstream production. Note calculated from yarn and density on the tech pack so nobody tests against an older revision.
Reference level
Typical activewear expectation: higher is more opaque. Record elastane content alongside Cover Factor, because blends shift the measured value. A result outside higher is more opaque usually points to process drift rather than to the fibre itself.
Tolerances that work
Allow a small tolerance rather than a fixed number, since normal process variation exists in every lot. Keeping reference values for Cover Factor lets suppliers quote without extra sampling rounds. Ask for conditioning details together with calculated from yarn and density, since both affect the reading.
Verification method
Confirm with calculated from yarn and density and keep the report against the bulk record. Working figures for Cover Factor normally sit around higher is more opaque in mainstream production. Note calculated from yarn and density on the tech pack so nobody tests against an older revision.
Commercial note
Tightening beyond practical need raises cost without improving garment life, so set the tightest target only where it protects the customer. Record elastane content alongside Cover Factor, because blends shift the measured value. A result outside higher is more opaque usually points to process drift rather than to the fibre itself.
