What is the diameter of a yarn of 40 yarns?
583.1 is the number of cotton yarns and special Tex conversion factor, such as pure fiber yarn coefficient of 590.54, according to some textile manual query, a 40 British cotton yarn diameter of about 0.14 mm.
Where 0.040 is the common diameter coefficient of the medium cotton yarn; if the high diameter cotton yarn (fine cotton yarn) is the common diameter coefficient is 0.037; this coefficient can be based on the yarn volume specific gravity (g / C㎡) formula.
(Inch): 1 ÷ {0.90 × [(Ne × 840) square)} = 1 ÷ {0.90 × [(40 × 840) square) = 0.006061608 inches
The diameter of the yarn is related to the number of yarns (the number of cables in the linear density), the raw material and the twist. Commonly used approximation method to calculate the yarn diameter: cotton yarn diameter can be calculated using the following two methods:
