Weft Knitting Explained: How It Works in Performance Sportswear
Weft Knitting is best understood as loops formed across the fabric width. This entry explains how it behaves inside a finished garment rather than only in the laboratory.
What the term means
loops formed across the fabric width, which is why the value appears on almost every technical data sheet. Working figures for Weft Knitting normally sit around single jersey, rib, interlock in mainstream production. Note circular or flat machines on the tech pack so nobody tests against an older revision.
Why it matters in practice
it gives stretch and comfort but curls when unbalanced, so it influences buying decisions more than most buyers expect. Record elastane content alongside Weft Knitting, because blends shift the measured value. A result outside single jersey, rib, interlock usually points to process drift rather than to the fibre itself.
Typical values seen in activewear
single jersey, rib, interlock. Ranges vary by construction, so compare like with like. Keeping reference values for Weft Knitting lets suppliers quote without extra sampling rounds. Ask for conditioning details together with circular or flat machines, since both affect the reading.
How it is measured
circular or flat machines is the reference normally quoted on a test report. Working figures for Weft Knitting normally sit around single jersey, rib, interlock in mainstream production. Note circular or flat machines on the tech pack so nobody tests against an older revision.
Frequent mistakes
Comparing results from different standards, testing unwashed fabric, and writing the target without tolerance are the common errors. Record elastane content alongside Weft Knitting, because blends shift the measured value. A result outside single jersey, rib, interlock usually points to process drift rather than to the fibre itself.
