Summary of Textile Basic Knowledge
The textile industry is a basic industry for the national economy and people's livelihood. There are many people engaged in the production, processing, and other fields of the textile industry. People's daily life about textiles is basically inseparable from their contributions. At present, there are a lot of people in the textile industry research field all over the world. Whether you are a professional or a non-professional, you basically have a certain understanding of the textile industry and textiles. Give everyone a brief exchange of concepts. 1. Commonly used textile calculation formulas are divided into two types: fixed-length calculation formula and fixed-weight calculation formula 1. Fixed-length calculation formula: (1), denier (D): Du003dg/L*9000 where g is The weight of the silk thread (grams), L is the length of the silk thread (meters) (2), tex (number) [tex(H)]: texu003dg/L*1000 where g is the weight of the yarn (or silk) (G), L is the length of the yarn (or silk) (m) (3), dtex (dtex): dtexu003dg/L*9000 where g is the weight of the silk thread (g), L is the length of the silk thread (M) 2. Calculation formula of fixed weight system: (1), metric count (N): Nu003dL/G where G is the weight (g) of the yarn (or silk), and L is the length of the yarn (or silk) (M) (2), British count (S): Su003dL/(G*840) where G is the weight of the silk thread (lbs), L is the length of the silk thread (yards) 2. The conversion formula for textile unit selection: ( 1) The conversion formula of metric count (N) and denier (D): Du003d9000/N(2), the conversion formula of English count (S) and denier (D): Du003d5315/ S(3), dtex and tex conversion formula: 1texu003d10dtex(4), tex and denier (D) conversion formula: texu003dD /9(5), tex (tex) and inch count (S) conversion formula: texu003dK/SK value: pure cotton yarn Ku003d583.1 purified fiber Ku003d590.5 polyester cotton yarn Ku003d587.6 cotton viscose yarn ( 75:25) Ku003d584.8 dimensional cotton yarn (50:50) Ku003d587.0 (6), tex (tex) and metric number (N) conversion formula: texu003d1000/N(7), detex (dtex) and denier (D) conversion formula: dtexu003d10D/9(8), decitex (dtex) and imperial count (S) conversion formula: dtexu003d10K/SK value: pure cotton Yarn Ku003d583.1 Purified fiber Ku003d590.5 Polyester cotton yarn Ku003d587.6 Cotton viscose yarn (75:25) Ku003d584.8 Three-dimensional cotton yarn (50:50) Ku003d587.0(9), dtex and metric count (N) conversion formula: dtexu003d10000/N(10), the conversion formula of metric centimeters (cm) and imperial inches (inch): 1inchu003d2.54cm(11), metric meters (M) and imperial yards (yd) Conversion formula: 1 yard u003d 0.9144 meters (12), the conversion formula of satin square meter weight (g/m2) and millimetres (m/m): 1m/mu003d4.3056g/m2 (13), the actual satin The conversion formula of weight and pound weight: pound weight (lb) u003d silk weight per meter (g/m) * 0.9144 (m/yd) * 50 (yd) / 453.6 (g/yd) 3. Testing method: 1. Hand feeling Visual inspection method: This method is suitable for loose fibers State-of-the-art textile materials. (1) Cotton fiber is shorter and thinner than ramie fiber and other hemp fiber and wool fiber, often with various impurities and defects. (2) The hemp fiber feels rough and hard. (3) The wool fiber is curly and elastic. (4) Silk is long and slender, with special luster. (5) Among chemical fibers, only viscose fiber has a large difference in strength between dry and wet states. (6) Spandex yarn has very large elasticity, and its length can be stretched to more than five times at room temperature.
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