Textile fibre and yarn

Textile fibers are the basic materials that make up the fabric (we do not talk from macromolecules), which has two categories: fabrics made of natural and man-made fibers. 1, natural fiber. Conventional natural fibers of cotton, linen, silk, wool, with the development of science and technology, new natural fibers have appeared, such as the pineapple leaf fiber and bamboo fiber is now widely used. They are dedicated to our high quality textile fiber raw materials of nature. Cotton, hemp, bamboo, pineapple leaf fibers are natural cellulose fibers, with fire lit charcoal ashes soon, with the smell of burnt grass. Wool, silk fibers are natural animal fibers, lit zoom and a smell of burning hair, fibers are put to use only a filament material, can be up to hundreds of metres, is spider silk fibers in the study should also now long fibers , but not put into practical use. 2, and chemical fiber. Rise of the chemical fiber is with the development of chemical industry, has become the subject of textile fibers. It is divided into two categories, one is a synthetic fiber, one is regenerated. A, synthetic fibers are to oil as raw material, by chemical polymerization, which primarily polyester, nylon, acrylic, vinylon fiber material, polypropylene, an-VDC copolymer fibers, polyurethane, etc. They can be cut into different length as needed or directly with the filament. Uniform combustion is characterized by melting it into a drop. Polyester fiber rigid good, of good and neat, often associated with cotton, wool blend. Nylon and nylon, fiber material is a more flexible, and most wear-resistant, common clothing “three”, and often used in the socks class product, common in recent years interwoven with nylon and viscose, forming Kam-stick woven fabrics. Acrylic is the best of warm synthetic fiber, commonly known as synthetic wool, wool material in common use. Vinylon moisture absorption is best in textile, wearing characteristics near the cotton fiber, less civil, very low grades, typically used in industrial products, such as ropes, hoses, fish net. Polypropylene lighter texture, accounting for 0. 91, and is currently one of the lightest material in textile fibers, wear-resistant, durable, non pilling. An-VDC copolymer fibers not combustion, knitted underwear, wool and other products for civilian use, also for industry filter cloth, cloth for overalls, insulation, security, tents, etc. Spandex is a fiber material with the highest flexibility, high elongation, high elasticity, tight product in common use, but not shaded, the force minimum, so seldom bare wire use. B, recycled fiber, also known as a synthetic fiber, is the use of natural materials of pulp of spinneret, which has regenerated cellulose and regenerated protein. Is one of the most common viscose (regenerated cellulose fiber), it has the characteristics of cotton, hemp, but a strong lower than cotton, linen, and less wet strength. Regenerating protein with fewer, chitin fiber is very mature for the medical field today. Textile standards status and moisture regain of fiber textile material with a certain degree of moisture absorption capacity, this capacity is different in a different State, in order to make textile material moisture absorption of a certain degree of comparability, at the same time facilitate the uniform measuring weight of textile materials , we provide standard atmospheric condition in General, standard on the status of international unity, just slightly different tolerance ranges. Standards status as set forth in China: 65% ¡À cent humidity, temperature 20 ¡ã c ¡À 3 ¡ã c 1. Containing water rate: fiber containing water weight accounted for fiber wet heavy of percentage, is: containing water rate = (fiber wet heavy-fiber dry heavy)/fiber wet heavy resurgence rate: fiber containing water weight accounted for fiber dry heavy of percentage, is: resurgence rate = (fiber wet heavy-fiber dry heavy)/fiber dry heavy standard resurgence rate : without of atmospheric Statefiber of resurgence rate is different of, standard resurgence rate is means fiber in standard State Xia of resurgence rate. Moisture regain of fiber conversion is unified by the weight of national standards for conversion transactions. Moisture regain is different for different fabrics, natural fiber associated with their high moisture regain of comfort. Of yarn is fiber shuzhuang, divided into three types: short fiber yarn, fancy yarn and filament yarn (here I separately as a class of special yarns). Short fiber spun yarn is made by adding a certain amount of twist or textiles (such as airflow spinning) shuzhuang gathered together materials; filament yarn is a long wire (such as natural silk, chemical fiber silk or rayon) and in combination with the shuzhuang; mainly for fancy yarn yarn appearance or color change. Main wrapped, core-spun, bamboo, pot, color points, waveform, braids, towels, circles, knot, feathers, toothbrush, centipede, scallops, dyeing, chenille, and so on. Yarn commonly used concepts in are as follows: 1, yarn twist–units-length number twisting back in. Has z twist and s twist of min; 2, and General comb (rough comb)–spinning process in the only after comb cotton machine only for end carding and textile of yarn; 3, and fine comb–spinning process in the using fine comb machine on fiber ends for carding of yarn, impurities more less, fiber more Shun direct; 4, and blended–two species or two species different nature of fiber mixed in together formation of yarn; 5, and yarn support–for said yarn fine of of index, main has inch support number, and metric support number, and special number, and denier number (behind also will specifically explained); 6, and single yarn–spinning machine Shang directly out of products, once back twist is will scattered, short yarn; 7, and unit line–two root or two root above of yarn and twist in together, short line; 8, and sewing line–for clothing, joint products suture of line class products of collectively,behind also will more explained; 9, and new spinning–relative and traditional ring ingot spinning of new spinning method, spinning process in the has end for free end, as air spinning, and friction spinning,, yarn no twist, but tangled in together. On yarn of fine of index for said yarn fine of of index main has: inch support number, and metric support number, and special number, and denier number 1, and inch support number (Ne)–in public will resurgence rate Xia, 1 pounds heavy yarn length of 840 code of multiples , that is 1 pounds heavy yarn just 840 code long, for 1 yarn, 1 pounds heavy yarn length for 21×840 code long, yarn of fine of for 21 support, wrote for 21s. Inch count is the duplicate, so larger yarn count more. Inch count not yarn fineness of statutory index today, but still commonly used in the enterprise, especially of cotton textile industry. 2, the number of metrics (Nm)-under the public regain, multiple 1 weight of yarn length meter, that is 1 weight yarn exactly 1 metre, 1 (male) yarn, 1 weight yarn length of 200 meters long, yarn fineness for the 200. Metric supportNumber is the duplicate, so larger yarn count more. Cotton wool is used in the textile industry. 3, TeX (Tex) ¨C also known as the “number” refers to the 1000-metre-long yarn in the official number of moisture regain of weight in grams, it is a fixed-length units, larger yarn weight thicker, often used to represent the wool yarn. 4, denier (d) ¨C also known as “Dan” or (DENIER: denier), refers to the public under the constant moisture regain, 9,000 metres yarn or fiber has a number of grams in weight, it is also a fixed-length system of units , weight larger and thicker yarns or fiber, often used to represent the chemical fiber, silk filament. Due to the fiber filaments and yarns of irregular shape and surface of yarn Hairiness (out of the fiber of short hair), so we cannot use diameter its fineness, textile workers to use these indicators.