Spinning is twisting together the fiber strands to form the yarn, and is a major part of the textile industry. The yarn is then used to make textiles, which are then used to make clothing and many other products. There are several industrial processes available for yarn spinning, as well as hand-spinning techniques in which fibers are pulled out, twisted, and wound onto the spindle.
Video Spinning (textiles)
Type of fiber
Artificial fibers are made by extruding the polymer through a spinneret into a hardened medium. Wet spinning (rayon) using coagulation media. In dry spinning (acetate and triacetate), the polymer is contained in a volatile solvent in the heated exit space. In melt melting (nylon and polyester) the extruded polymer is cooled in gas or air and set. All these fibers will be very long, often kilometers long.
Natural fibers come from animals (sheep, goats, rabbits, silkworms), minerals (asbestos), or plants (cotton, hemp, sisal). These vegetable fibers can come from seeds (cotton), stems (known as tree bark fibers: hemp, hemp, hemp) or leaves (sisal). Without exception, many processes are needed before clean and clean staples are obtained. With the exception of silk, each of these fibers is short, just a centimeter long, and each has a rough surface that allows it to be tied to the same staples.
Artificial fibers can be processed as long fibers or flattened and cut so that they can be processed like natural fibers.
Maps Spinning (textiles)
Method
Ring spinning is one of the most common spinning methods in the world. Other systems include water-jet and open-end spinning, a technique in which staple fibers are blown by air into the rotor and attached to the tail of a formed thread that is constantly pulled out of the room. Another method to break the needle using spinning and electrostatic forces.
The process for making short staple yarn threads (usually spun from fibers from 0.75 to 2.0 ") is mixing, opening, carding, pin-drafting, roving, spinning, and - if desired - plying and immersion.In a long staple spinning , the process can be started by stretching rope strap, "string" of sustainable synthetic fiber.On the open-end and air-jet spinning, the roving operation is removed.The spinning frame rotates the yarn around the coil Generally, after this thread step is a wound to the cone knitting or weaving.
On a rotating donkey, the roving is pulled from the coil and sequentially fed through rolls that operate at several different speeds, attenuating circumference at a consistent rate. The yarn is twisted through the spinning coil as the train moves out, and rolled to the police when the train returns. Mule spinning produces a finer yarn than a spinning ring. Spinning by a mule engine is an intermittent process as the frame progresses and returns. It is a derivative of a tool invented in 1779 by Samuel Crompton, and produces a softer, less bent thread that is favored for fines and for feed.
It was a descendant of the Archewright water frame of 1769 and created a thread in a continuous process. Its yarn is coarser, has larger coils, and is stronger, making it more suitable for the warp. Ring spinning is slow because the distance of the yarn must pass through the ring. Similar methods have been improved in this regard including leaflets and coils and spinning hats.
The pre-industrial hand-spinning technique with spindles or spinning wheels continues to be practiced as handicrafts or hobbies, and allows unused wool or staple vegetables and animals to use.
History and economy
Hand-spinning is a cottage industry in medieval Europe, where wool spinners (often women and children) will provide enough yarns to serve the needs of the men who operate the loom. Wider fabrics of arm ranges are produced by paired weavers, placed on each side of the loom, passing through the coil or moving the yarn (feed) between them. In the UK, the launch of airplanes accelerates the weaving process, and allows the operation of a wide loom by one weaver. This reduces half the number of weavers required to produce a wide range of woven fabrics on a single loom. Effectively, it's about twice as much as the woven product and the demand for spun yarn. The subsequent invention of the rotating jenny water framework helps fulfill this demand through mechanization. The technology is special and expensive, and uses water as a motive force. Spinning and weaving as a home industry is moved by a specialized factory, developed by industrialists and their investors; the spinning and weaving industry, which was once widespread, concentrated where water sources, raw materials and manpower were most widely available, notably West Yorkshire. The British government is very protective of technology and limits its exports. After World War I the colonies where cotton grown began to buy and produce a large number of cotton spinning machines. The next breakthrough is to move to break or open-end spinning, and then the adoption of artificial fibers. By then most of the production had moved to India and China.
During the industrial revolution, spinners, doffers, and sweepers were employed in spinning mills from the 18th to the 20th centuries. Many factory owners prefer to employ children because of their small size and agility.
References
Bibliography
Collier, Ann M. (1970), Textile Handbook , Pergamon Press, p.Ã, 258, ISBNÃ,Â,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, 0 -08-018057-4
External links
- The medieval spinning industry of Trowbridge
Source of the article : Wikipedia
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