How many specifications are there for polyester threads? There are many specifications, and there are 20S/2, 20S/3, 40S/2, 40S/3, 50S/2, 60S/2, etc. in the polyester thread.
S represents the yarn count, and the inch count is used here, which means that the yarn weight per unit weight (1 pound) is a multiple of 840 yards at a predetermined moisture regain. A few 840 yards are a few yarns in the UK. (often expressed in Ne). Unit: s. (1 lb = 0.4536 kg, 1 yard = 0.9144 m) Taking 20S as an example, that is, the length of the yarn of 0.4536 kg is 20* (0.9144*840) meters long. Therefore, the larger the count, the longer the length of a pound of yarn and the finer the yarn.
/2, /3 refers to the number of shares, and 20S/2 refers to the double-strand yarn which is made up of double-stranded 20S single yarns. /3 is a three-ply yarn
The representation of the strands: 20 strands (two joints) is 20S/2, I hope I can help you.
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