How Much Is The Common Sense Of The Suture Of Clothing Accessories

< p > concept click < /p >.

< p > > a href= "http://www.91se91.com/" > sewing thread < /a > sewing thread is a kind of yarn or spun yarn twist line, which is usually treated by surface coating and lubrication, and is used to sew one or two materials.

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< p > < a href= "http://www.91se91.com/" > blank line > /a >: the blank line is a semi-finished sewing thread formed after the final twist or a similar process in the process of extrusion, deforming, weaving and so on.

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< p > linear density: linear density is the linear mass per unit length, and the specific value of linear density can be obtained by dividing the fiber or yarn quality by its length.

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< p > yarn count: the number of yarns is a unit that expresses the fineness or specification of yarns. According to the different yarns, the expression is "quality / length" or "length / quality".

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< p > indirect yarn calculation system: the indirect calculation system of yarn is used to indicate the relationship between yarn length and yarn quality, and the system of yarn specification is specified by yarn length per unit length or yarn quality per unit length (yarn density).

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< p > metric count (Nm): the indirect calculation system of yarn shows that the meter weight of 1 grams of yarn length is equal to the percentage of moisture in the cotton and the percentage of dry fiber weight.

That is, the weight of 1 grams of yarn is exactly 1 meters long, and it is 1 (public) yarn.

Metric number is fixed weight system, so the larger the number, the smaller the yarn.

Example: 1 grams of heavy yarn length is 200 meters long, yarn fineness is 200, cotton and wool textile industry is widely used.

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The indirect calculation system of < p > British count (Ne): < a href= "http://www.91se91.com/ > > yarn > /a > indicates that the weight of the 1 pound yarn is 840 times the multiple of the weight of the yarn, that is, the 1 pound yarn is exactly 840 yards long, and it is 1 (British) yarn (the length of yarn 840 yards per pound).

The number of British branches is fixed weight system, so the larger the number of branches, the smaller the yarn.

Example: the length of the 1 pound yarn is 21 * 840 yards, and the fineness of the yarn is 21. It is written as 21s.

The number of British branches is also known as the number of cotton yarn in the cotton textile industry. It is not a statutory yarn unit in China, but it is still widely used in the cotton textile industry.

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< p > tex: called "special", also known as the "number", indicates that the weight of the 1000 meter long yarn is the number of linear density when the moisture regain is fixed.

It is a fixed length unit, the smaller the number, the better the line (the less fiber); the bigger the number, the more rough the line, the more fiber it is used for wool yarn.

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< p > Daniel (Nden): Daniel (denier), also known as "Dan number", is the earliest British system of stitches.

The number of grams of 9000 m long yarns or fibers indicates the linear density value at a constant moisture regain.

It is a fixed length unit. The bigger the weight is, the thicker the yarn or fiber is, the more commonly used in chemical filament, silk and so on.

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< p > from the above concept, we can see that because the shape of filament or yarn is irregular, and the yarn surface has Mao Yu (extended fiber short hair), the fineness of yarn can not be expressed in diameter, and the above index, that is, the number or density, means < a href= "http:// www.91se91.com/" > yarn < /a > fineness.

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< p > formula < /p >

< p > 1. tex (Tex) = (G/L) x 1000, formula: G is the weight of the yarn, and L is the length of the yarn (m) < /p >

< p > 2. denier Neal (Nden) = (G/L) x 9000, formula: G is the weight of the silk (gram), L is the length of the wire (m) < /p >

< p > 3. metric count (Nm) =L/G, type: L is yarn (silk) length (m), G is yarn (silk) weight (g) < /p >

< p > 4. British count (Ne) = (L/G) x 840, formula: L for yarn (silk) length (code), G for yarn (silk) weight (pounds) < /p >

< p > conversion relation < /p >

< p > Nm=9000/Nden; tex=1000/Nm; < /p >

< p > tex=Nden/9 (1 Dan Neal =0.11 Tex); < /p >

< p > Ne=C/tex (C is constant, chemical fiber is 590.5, cotton fiber is 583, if blended yarn can be calculated according to mixture ratio) < /p >

< p > concept understanding < /p >

< p > 1. counts can indicate yarn "quality / length" or "length / quality".

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< p > 2. and Daniel only indicate the density (quality / length) of yarns.

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< p > 3.tex and Nm are metric units; S (British counts) and D (Daniel) are British units.

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< p > 4.tex indicates that the length of 1000m is 1000m * * *, and it can also be understood as weight (g) / length L (m), with a coefficient of 1000.

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< p > 5.D indicates that the length of 9000m is 9000m * * *, which can be understood as weight (g) / length L (m) with a coefficient of 9000.

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< p > 6., the number of branches is inversely proportional to the number, that is, the higher the number of branches, the lower the Tex value, that is, the smaller the line number of 1000m length, the example is 60S=9.8tex, and 10S=59.1tex (the premise is that the general production enterprise takes 3000m within the same length range).

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< p > 7. Dan Neal is directly proportional to the number, that is, the larger the D value, the greater the Tex value, for example: 120D=13.2tex; and 60D=6.7tex.

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< p > 8.60S or 10S refers to the density of single strands, the higher the number of branches, the smaller the diameter is.

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< p > 9. common unit relationship: 1 meter =1.0936 code; 1 yards =0.9144 meter; 1 kilograms =2.2046 pounds; 1 pounds =0.4536 kilograms; 1 meters =39.37 inch; 1 inch =0.0254 meter; 1 (British system) =840 code; 1 (Metric) =1000 meters; 1 public branch =1.69 English; 1 British branch =0.583 public branch.

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