Colour Fastness to Rubbing (Crocking) Why Shipments Get Rejected Over This
Many disputes come down to Colour Fastness to Rubbing (Crocking). Below is what inspectors check and why shipments fail.
The core definition
colour transfer under friction. Working figures for Colour Fastness to Rubbing (Crocking) normally sit around grade 4 dry, 3-4 wet in mainstream production. Note ISO 105-X12 rubbing on the tech pack so nobody tests against an older revision.
Most common cause of failure
Results usually fall outside grade 4 dry, 3-4 wet because the target was never written into the order. Record elastane content alongside Colour Fastness to Rubbing (Crocking), because blends shift the measured value. A result outside grade 4 dry, 3-4 wet usually points to process drift rather than to the fibre itself.
How it is checked
Inspection and laboratory work both refer to ISO 105-X12 rubbing. Keeping reference values for Colour Fastness to Rubbing (Crocking) lets suppliers quote without extra sampling rounds. Ask for conditioning details together with ISO 105-X12 rubbing, since both affect the reading.
Related faults
white panels and prints fail first, so related complaints often point back to this single parameter. Working figures for Colour Fastness to Rubbing (Crocking) normally sit around grade 4 dry, 3-4 wet in mainstream production. Note ISO 105-X12 rubbing on the tech pack so nobody tests against an older revision.
Avoiding rejection
Agree targets, tolerances and the method before production, then test per lot rather than per shipment. Record elastane content alongside Colour Fastness to Rubbing (Crocking), because blends shift the measured value. A result outside grade 4 dry, 3-4 wet usually points to process drift rather than to the fibre itself.
