Yarn is a long continuous length of interlocked fibres, suitable for
use in the production of textiles, sewing, crocheting, knitting,
weaving, embroidery, and ropemaking.
l/m = 1693 × lm/Nec × m/kg, where l/m is the yarn length in meters,
lm/Nec is the English cotton count and m/kg is the yarn weight in
English cotton count (Nec) is an indirect counting system, that is,
the higher the number the finer the yarn.
Thread: a length of 54
inches (1.4 m) (the circumference of a warp beam)
- Bundle: usually 10 pounds (4.5 kg)
- Lea: a length of 80 threads or 120 yards (110 m)
denier to cotton count: lm/Nec = 5315/ρ/den, where lm/Nec is the
cotton count and ρ/den is the density in denier.
To convert tex to cotton count: lm/Nec
= 590.5/ρ/tex, where lm/Nec is the cotton count and ρ/tex is the density
Below is another look at the formulas above that we saved into a
different format because we are having difficulty typing to show
Have you ever asked yourself, what is a hank of cotton or silk?
You can read the
hank definition if you are curious.