The conversion method of the number of yarns, the formula for the conversion of yarns

1. The imperial thread number ne and the metric thread number nm

Purified fiber: ne= pure cotton: ne=

Blended yarn: such as T jc (65 35) 45S ne = (2, the conversion of the number of decimeters (NDTEX) and the number of metric counts (nm): NDTEX NM=10000

3. Conversion of denier number (nden) to decimeter number (ndtex): nden=<>

Fixed-length calculation formula:

1), denier (d) = g l * 9000 where g is the weight of the silk thread (grams), l is the length of the silk thread (m).

2), Tex (number) [tex(h)]: tex=g l*1000 where g is the weight (gram) of yarn (or silk), and l is the length of yarn (or silk) (m).

3), Decitex (DTEX): DTEX = G L * 10000 where G is the weight of the silk thread (grams), L is the length of the silk thread (meters).

Fixed-weight calculation formula:

1) Metric count (n): n = l g where g is the weight of yarn (or silk) (grams), l is the length of yarn (or silk) (m).

2) Imperial thread count (S): S=L (G*840) where G is the weight (pounds) of the silk thread, and L is the length (yard) of the silk thread

Yarn count conversion formula: ne = yarn length yards (840 * yarn weight pounds), nm = fiber or yarn length in meters weight grams ntex = (1000 * fiber or yarn weight grams) length meters nden = (9000 * fiber or yarn weight grams) hall attack god length in meters.

Yarn count refers to the thickness of the yarn, which is usually indicated by the English letter S. For example, the length of 1 pound of yarn is 21x840 yards, and its fineness is 21 threads, which is expressed as 21s. Yarn, that is, the thickness of the yarn, the common Chinese or "British system", that is:

One pound (454 grams) of cotton yarn (or other constituent yarn) with a length of 840 yards (yards) is fine. For example, the length of one pound of yarn is 10,840 yards, the fineness is 10 threads, and so on.

1. Fixed-length system:

Tex: The number of grams of mass of a 1000-meter-long yarn at a given moisture regain rate is called the tex number.

Formula: NTEX = (G L) 1000 Where: g is the weight of the yarn (grams) and L is the length of the yarn (meters).

Denier: The number of grams of mass of a 9000-meter-long filament at a given moisture regain rate is called denier.

Formula: nden=(g l) 9000 where g is the weight of the filament (grams) and l is the length of the filament (m).

2. Fixed reproduction system:

a.Number of male branches (male branches): The length of 1 gram of yarn (silk) in meters.

Formula: nm=l g

Where: L is the length of yarn (silk) (m), and g is the weight of yarn (silk) (g) BCount (Count): A multiple of 840 yards of length for 1 pound of yarn.

Formula: ne=(l g) 840

Where: L is the length (yards) of yarn (silk), and G is the weight (pounds) of yarn (silk).

Fixed-length calculation formula:

1), denier (d) = g l * 9000 where g is the weight of the silk thread (grams), l is the length of the silk thread (m).

2), Tex (number) [tex(h)]: tex=g l*1000 where g is the weight (gram) of yarn (or silk), and l is the length of yarn (or silk) (m).

3), Decitex (DTEX): DTEX = G L * 10000 where G is the weight of the silk thread (grams), L is the length of the silk thread (meters).

Fixed-weight calculation formula:

1) Metric count (n): n = l g where g is the weight of yarn (or silk) (grams), l is the length of yarn (or silk) (m).

2) Imperial thread count (S): S=L (G*840) where G is the weight (pounds) of the silk thread, and L is the length (yard) of the silk thread

Public Branch (n):

The male branch is a unit of denier under the fixed weight system. It refers to the length of 1 gram of yarn in meters. If the length of 1 gram of yarn is 100 meters, the number of yarns is 100 mm (100N); The length is 50 meters, and the yarn count is 50 metric counts (50N).

The value of "n" is inversely proportional to the thickness of the yarn, the higher the value of "n", the finer the yarn, and vice versa.

Silk, silk and wool are all represented by male branches. Hemp is also sometimes denoted by a male branch.

Yingzhi (s):

The British branch is a unit of denier under the statute weight system. It refers to the multiples of 840 yards of yarn that weigh 1 pound of yarn. A number of times is a number of branches.

If a pound of yarn is weighed in length of 25,200 yards, which is 30 times that of 840 yards, then these yarns are 30 pounds (30s).

The value of "s" is inversely proportional to the thickness of the yarn. The higher the "s" value, the finer the yarn; Otherwise, it is coarse.

Cotton, viscose staple fibers and synthetic fibers blended with them are all denoted by English (S). Hemp is also sometimes used with an "s".

The formula for calculating yarn count is: f=x*ml. Yarn is a kind of textile, which is processed into a certain fineness product with various textile fibers, which is used for weaving, rope making, thread making, knitting and embroidery, etc., and is divided into short fiber yarn, continuous filament, etc.

The fineness of the yarn can be expressed in various ways, such as the number of numbers, metric counts, imperial count counts, deniers, etc. (see count count). The twist of the yarn is expressed in terms of the number of twists per meter or inch.

Textile is a kind of textile fiber processed and woven into a product, divided into two categories of woven fabric and knitted fabric, China is one of the earliest countries in the world to produce textiles, the main production area is Puyuan, Zhejiang, Qinghe, Hebei and other places. The correct stacking method of textiles is to choose a place that is conducive to ventilation and easy to prevent fire, cotton cloth is best placed in a well-ventilated place, such as the nearest place from the door, the nearest place from the window, the door width of one meter is the conventional door width, 6 to 7 rolls in a row, the second layer is placed longitudinally flat, the number must be the same as the bottom, the third layer is still horizontally flat, the number is the same, and so on.

Generally: gauze, khaki, poplin, tribute satin, general: 40s*32s 143*90 67 inches billet weight 275 grams! Finished product*90% = 247g!

1. The conversion formula between yarn count (English branch) and denier (represented by d) is 5315 d

2. The denier number represents the number of grams of 9000 meters of yarn, for example, we often say 100d means that the weight of 9000 meters of yarn is 100 grams.

Knowing these two points, it is easy to understand the formula.

Example: 40s*40s 133*72 63", 133*72 represents the number of warp and weft yarns per inch, 63"Indicates that the width of the fabric is 63 inches.

Calculation formula: the amount of warp yarn per meter: 133 63 (5315 40) 9000 shrinkage) 136 grams, of which the weaving shrinkage is different according to the thickness and density of the weft, the thicker and denser the weft, the higher the weaving shrinkage.

Weft yarn usage per meter: 72 63 (5315 40) 9000 70 grams.

Then multiply the yarn price per meter, for example, 40s combed yarn is 25 yuan kg, then the cost of the fabric yarn is (136 + 70) 1000 25 yuan.

Then add the weaving cost, the general arrow machine is 3 points and one weft, that is: 72 * yuan.

The total price of the fabric is: , and some of them can be rounded.

Yarn twist refers to the degree to which the yarn is rotated at a certain angle along the yarn axis during the manufacturing process of the yarn count. The formula for calculating yarn twist is as follows:

Twist (tpi) = length of twist (inches) number of windings) yarn length (inches).

Among them, the "length of twisting" refers to the length of continuous twisting on the yarn, which is generally used in inches; "Number of wounds" refers to the number of turns wound on the yarn when twisting; "Yarn length" refers to the length of a certain weight of yarn, generally in inches.

For example, if the length of a continuous twist on a yarn is 1 inch, the number of windings is 6 when twisting, and the yarn length is 5000 inches, then the yarn twist is:

Twist (TPI) = 1 inch (6 windings) 5000 inches = TPI

It is important to note that different yarn types and uses require different twists, so when manufacturing yarns, the twist of the yarn needs to be calculated and controlled on a case-by-case basis.