Colour Fastness to Washing Why Shipments Get Rejected Over This
Many disputes come down to Colour Fastness to Washing. Below is what inspectors check and why shipments fail.
The core definition
resistance to colour change and staining. Working figures for Colour Fastness to Washing normally sit around grade 4-5 expected in mainstream production. Note ISO 105-C06 domestic laundering on the tech pack so nobody tests against an older revision.
Most common cause of failure
Results usually fall outside grade 4-5 expected because the target was never written into the order. Record elastane content alongside Colour Fastness to Washing, because blends shift the measured value. A result outside grade 4-5 expected usually points to process drift rather than to the fibre itself.
How it is checked
Inspection and laboratory work both refer to ISO 105-C06 domestic laundering. Keeping reference values for Colour Fastness to Washing lets suppliers quote without extra sampling rounds. Ask for conditioning details together with ISO 105-C06 domestic laundering, since both affect the reading.
Related faults
it is the most frequently failed test in audits, so related complaints often point back to this single parameter. Working figures for Colour Fastness to Washing normally sit around grade 4-5 expected in mainstream production. Note ISO 105-C06 domestic laundering 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 Washing, because blends shift the measured value. A result outside grade 4-5 expected usually points to process drift rather than to the fibre itself.
