Flatlock Seam Why Shipments Get Rejected Over This
Many disputes come down to Flatlock Seam. Below is what inspectors check and why shipments fail.
The core definition
butted seam covered with dense stitching. Working figures for Flatlock Seam normally sit around used next to skin in mainstream production. Note flatlock machines on the tech pack so nobody tests against an older revision.
Most common cause of failure
Results usually fall outside used next to skin because the target was never written into the order. Record elastane content alongside Flatlock Seam, because blends shift the measured value. A result outside used next to skin usually points to process drift rather than to the fibre itself.
How it is checked
Inspection and laboratory work both refer to flatlock machines. Keeping reference values for Flatlock Seam lets suppliers quote without extra sampling rounds. Ask for conditioning details together with flatlock machines, since both affect the reading.
Related faults
it removes the raised edge that causes chafe, so related complaints often point back to this single parameter. Working figures for Flatlock Seam normally sit around used next to skin in mainstream production. Note flatlock machines 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 Flatlock Seam, because blends shift the measured value. A result outside used next to skin usually points to process drift rather than to the fibre itself.
