The English count is fixed weight system: the thickness of sliver and yarn is expressed by the length of sliver or yarn unit weight. In the case of public resurgence (9.89%), the fixed weight of cotton yarn is 1 pound, and the length is 840 yards, which is called how many English counts.

The legal unit of measurement for measuring yarn thickness in China is called linear density, the unit name is "Tex", the abbreviation is "Tex" or "number", and the unit symbol is T or TEX. The linear density (counting system) is a fixed length system, which stipulates that the fixed length of yarn is 1000 m under the condition of constant moisture regain (8.5%). What is its weight? Or Tex,

Answer this question:

English count of warp: 583. 1÷2 1? =? 27.8 cents or something? 28? Hideki

English latitude: 583. 1÷ 19.5? =29.9 cents? Or? 30? Hideki

(2) British warp and weft density of fabrics

The density of "Tex" warp and weft is expressed by the number of warp and weft in the range of fabric 10cm;

The warp and weft density of English count is expressed by the number of warp and weft yarns per inch of fabric. Usually the density of longitude and latitude in Britain is 0.5 or an integer.

When converting English weft density into metric weft density or Tex weft density in China, less than 0.5 is 0.5, and more than 0.5 is less than 1. The density of warp and weft is 0.5 or an integer.

The above problems are converted into English warp and weft density of 68/ inch ×44.5/ inch.

(Note: There is an error in the reverse conversion of this question. If it is in actual production, other factors can be considered to determine. )

(3) The number of inches of fabric width

The metric width of the fabric is 0.5 or integer cm, and the principle of decimal selection when converting English into metric is: 0.26 ~ 0.75 takes 0.5; Above 0.75, take1; Less than 0.26. The above correction rules should be considered when converting metric analysis into English branch.

1 inch = 2.54cm or more 137cm fabric width, which is 54 inches in English.

(4) the length and size of the fabric

1 m =0.9 144 yards. The length of the fabric is 33m, which is 36 yards in English.

(5) Fabric warp and weft tightness and fabric total tightness?

Warp tightness of fabric? =? 0.037×267.5×√ warp density Tex? =? 45.36%

Weft density of fabric? =? 0.037× 175.5×√ weft linear density Tex? =? 28.67%

Total tightness of fabric? =? Warp tightness of fabric? +? Weft density of fabric? -? Fabric warp tightness × fabric weft tightness

=? 45.36%? +? 28.67%? -? 45.36%×28.67%? =? 6 1.03%

Because the formula editor can't display normally, I hope to see the "picture" pasted in appendix 1.