Single Jersey Setting It Correctly on a Tech Pack
Single Jersey should be written into the tech pack with a value, a tolerance and a method. This removes ambiguity from quotations.
Definition to agree
basic weft knit with one set of needles. Working figures for Single Jersey normally sit around 140-220 GSM in mainstream production. Note circular single-bed machine on the tech pack so nobody tests against an older revision.
Target value
Open the specification at 140-220 GSM, adjusted to the end use. Record elastane content alongside Single Jersey, because blends shift the measured value. A result outside 140-220 GSM usually points to process drift rather than to the fibre itself.
Method line
Always pair the target with circular single-bed machine so the mill and the laboratory test the same way. Keeping reference values for Single Jersey lets suppliers quote without extra sampling rounds. Ask for conditioning details together with circular single-bed machine, since both affect the reading.
Tolerance line
State plus or minus limits to keep production realistic while protecting the requirement. Working figures for Single Jersey normally sit around 140-220 GSM in mainstream production. Note circular single-bed machine on the tech pack so nobody tests against an older revision.
Approval step
Approve the result on pre-production bulk rather than on development fabric only. Record elastane content alongside Single Jersey, because blends shift the measured value. A result outside 140-220 GSM usually points to process drift rather than to the fibre itself.
