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Textile is an umbrella term that includes various fiber-based materials, including fibers, yarns, filaments, threads, different fabric types, etc. At first, the word "textiles" only referred to woven fabrics. However, weaving is not the only manufacturing method, and many other methods were later developed to form textile structures based on their intended use. Knitting and non-woven are other popular types of fabric manufacturing. In the contemporary world, textiles satisfy the material needs for versatile applications, from simple daily clothing to bulletproof jackets, spacesuits, and doctor's gowns.
Yarn is a long continuous length of interlocked fibres, used in sewing, crocheting, knitting, weaving, embroidery, ropemaking, and the production of textiles. Thread is a type of yarn intended for sewing by hand or machine. Modern manufactured sewing threads may be finished with wax or other lubricants to withstand the stresses involved in sewing. Embroidery threads are yarns specifically designed for needlework. Yarn can be made of a number of natural or synthetic materials, and comes in a variety of colors and thicknesses. Although yarn may be dyed different colours, most yarns are solid coloured with a uniform hue.
Dyeing is the application of dyes or pigments on textile materials such as fibers, yarns, and fabrics with the goal of achieving color with desired color fastness. Dyeing is normally done in a special solution containing dyes and particular chemical material. Dye molecules are fixed to the fiber by absorption, diffusion, or bonding with temperature and time being key controlling factors. The bond between the dye molecule and fiber may be strong or weak, depending on the dye used. Dyeing and printing are different applications; in printing, color is applied to a localized area with desired patterns. In dyeing, it is applied to the entire textile.
Textile manufacturing is a major industry. It is largely based on the conversion of fibre into yarn, then yarn into fabric. These are then dyed or printed, fabricated into cloth which is then converted into useful goods such as clothing, household items, upholstery and various industrial products.
Natural fibers or natural fibres are fibers that are produced by geological processes, or from the bodies of plants or animals. They can be used as a component of composite materials, where the orientation of fibers impacts the properties. Natural fibers can also be matted into sheets to make paper or felt.
The manufacture of textiles is one of the oldest of human technologies. To make textiles, the first requirement is a source of fiber from which a yarn can be made, primarily by spinning. The yarn is processed by knitting or weaving, which turns yarn into cloth. The machine used for weaving is the loom. For decoration, the process of colouring yarn or the finished material is dyeing. For more information of the various steps, see textile manufacturing.
In clothing, heather refers to a color effect created by mixing two or more different colored fibers or yarns. It is interwoven yarns of mixed colors, and possibly the type of fiber, producing another color. It is typically used to mix multiple shades of grey or grey with another color to produce a muted shade, but any two colors can be mixed, including bright colors. A mixed fabric color is achieved by using different colors of fiber and mixing them together. Black and white fiber mixed will combine to give grey heather fiber. Heather is blended fibers combined to create a multicolored effect. Heather effect is also known as melange effect.
A staple fiber is a textile fiber of discrete length. The opposite is a filament fiber, which comes in continuous lengths. Staple length is a characteristic fiber length of a sample of staple fibers. A fiber is made up of natural substances and is known for being longer than it is wide. It is an essential criterion in yarn spinning, and aids in cohesion and twisting. Compared to synthetic fibers, natural fibers tend to have different and shorter lengths. The quality of natural fibers like cotton is categorized into staple length such as short, medium, long staple, and extra-long. Gossypium barbadense, one of several cotton species, produces extra-long staple fibers. The staple fibers may be obtained from natural and synthetic sources. In the case of synthetics and blends, the filament yarns are cut to a predetermined length.
In textile manufacturing, finishing refers to the processes that convert the woven or knitted cloth into a usable material and more specifically to any process performed after dyeing the yarn or fabric to improve the look, performance, or "hand" (feel) of the finish textile or clothing. The precise meaning depends on context.
Dimensional stability pertains to a fabric's ability to maintain its initial size and shape even after undergoing wear and care, which is a desirable property. Dimension stability in fabrics or Shrinkage is the change of dimensions in textile products when they are washed or relaxed. The change is always expressed relative to the dimensions before the exposure of washing or relaxing. Shrinkage is also called residual shrinkage and measured in percentage. The major cause of shrinkages is the release of stresses and strains introduced in manufacturing processes. Textile manufacturing is based on the conversion of fiber into yarn, yarn into fabric, includes spinning, weaving, or knitting, etc. The fabric passes through many inevitable changes and mechanical forces during this journey. When the products are immersed in water, the water acts as a relaxing medium, and all stresses and strains are relaxed and the fabric tries to come back to its original state.
Wet Processing Engineering is one of the major streams in Textile Engineering or Textile manufacturing which refers to the engineering of textile chemical processes and associated applied science. The other three streams in textile engineering are yarn engineering, fabric engineering, and apparel engineering. The processes of this stream are involved or carried out in an aqueous stage. Hence, it is called a wet process which usually covers pre-treatment, dyeing, printing, and finishing.
Hand feel is the property of fabrics related to the touch that expresses sensory comfort. It refers to the way fabrics feel against the skin or in the hand and conveys information about the cloth's softness and smoothness. Hand feel is an estimated and subjective property of different fabrics, but nowadays, hand feel could be measured and assessed statistically.
Barré is an unintentional repetitive horizontal pattern in fabrics that is generally undesirable and considered as a defect. It appears as a lateral stripe pattern. Barré occurs for many reasons associated with the manufacturing of textile ensembles like fiber, yarn, fabric manufacturing, weaving or knitting, or finishing faults.
The cross section depicts the shape of the various textile fibers. Each textile fiber offers a distinct cross sectional appearance when seen under a microscope. The shapes vary from round to oval and flat, different shapes determines certain characteristics of the textiles. Though the majority of synthetic fibers have a circular cross section, but the shape could be altered or engineered during the manufacturing process. The cross-sectional shape is responsible for certain physical properties of textile fibers such as the luster of textiles.
A blend is a mixture of two or more fibers. In yarn spinning, different compositions, lengths, diameters, or colors may be combined to create a blend. Blended textiles are fabrics or yarns produced with a combination of two or more types of different fibers, or yarns to obtain desired traits and aesthetics. Blending is possible at various stages of textile manufacturing. The term, blend, refers to spun fibers or a fabric composed of such fibers. There are several synonymous terms: a combination yarn is made up of two strands of different fibers twisted together to form a ply; a mixture or mixed cloth refers to blended cloths in which different types of yarns are used in warp and weft sides.
The surface contour of the fiber characterizes its outer surface along its shaft and may be rough, smooth, scaly, serrated, convoluted, or striated, all of which contribute to the friction, softness, and texture. The property is important for the texture and feel of the fabric that is made. Natural fibers, like cotton and wool, have a staple length and irregular, void-filled surface contours. The rough surface aids in the capture of fine particles. Due to the fact that they are not completely solid, they are more compressible. The fiber's microstructures include its cross section shape and surface contour.
Aesthetics in textiles is one of the basic concepts of serviceability of textiles. It is determined by the perception of touch and sight. Aesthetics imply the appearance and attraction of textile products; it includes the color and texture of the material. It is a statement about the end user (consumer) and the target market. When combined with fabric construction, the finish of the clothing material, garment fit, style, and fashion compatibility, colours create an aesthetic comfort. All of these elements work together to satisfy our visual perception. Aesthetics incorporates the role of evaluation also.
Shearing is a kind of mechanical finish in which the appearance of the fabric is enhanced by cutting the loops or raised surface to a uniform and even height. The machine may have a spiral blade similar to a grass cutting machine. A Shearing machine can cut the loop or the pile to a desired level. Shearing was most commonly used to make woolens and worsted materials. It was a part of dry finishing of woolen and worsted goods. Previously, shearing was also a component of gigging or napping; when partially produced goods were exposed to shear in order to improve the impact of gigging or napping, the process was referred to as "cropping."
In textile spinning, yarn realisation (YR), or yarn recovery, is an operational parameter of yarn manufacturing. It is the percentage conversion of raw material to finished yarn. The rest of the waste fibers with less value are compared to the weight of the produced yarn from a given weight of raw material. The quantity of waste removed during the various phases of yarn spinning, such as blow-room, carding, and combing, is often used to determine yarn realisation. Yarn realisation ranges between 85% and 90% in carded cotton yarns and between 67% and 75% in combed cotton yarns.
Textile testing is the process of measuring the properties and performance of textile materials—textile testing includes physical and chemical testing of raw materials to finished products.
References
- 1 2 Thilagavathi, G.; Karthik, T. (2016-01-05). Process Control and Yarn Quality in Spinning. CRC Press. p. 76. ISBN 978-93-80308-18-0.
- ↑ Mather, Robert R.; Wardman, Roger H. (2015-11-06). The Chemistry of Textile Fibres. Royal Society of Chemistry. p. 412. ISBN 978-1-78262-636-7.
- ↑ Textile Colorist: A Monthly Journal Devoted to Practical Dyeing, Bleaching, Printing and Finishing, Dyes, Dyestuffs and Chemicals as Applied to Dyeing. Howes Publishing Company. 1943. p. 23.
- ↑ Purushothama, B. (2016-01-05). Handbook on Cotton Spinning Industry. CRC Press. p. 215. ISBN 978-93-85059-55-1.
- ↑ Corp, Sargent, (C G. ) Sons (1911). The Yarn Conditioning Machine an Evolution in Yarn Conditioning: An Essential Part of a Mill Equipment for Cotton, Woolen and Worsted Yarns. C.G. Sargent's Sons Corporation.
{{cite book}}: CS1 maint: multiple names: authors list (link) - ↑ "Moisture regain - CAMEO". cameo.mfa.org. Archived from the original on 14 April 2022. Retrieved 2021-05-17.
- ↑ Hollen, Norma R.; Hollen, Norma R. Textiles (1988). Textiles. Internet Archive. New York : Macmillan. ISBN 978-0-02-367530-0.
- ↑ Kadolph, Sara J. (1998). Textiles. Internet Archive. Upper Saddle River, N.J. : Merrill. pp. 38, 44, 56, 64, 85, 91, 102, 110, 120, 124, 129. ISBN 978-0-13-494592-7.
- ↑ Limited, Associated Industrial Consultants (1970). The testing of yarn. H.M. Stationery Office. p. 12.
- ↑ Reichman, Charles (1963). Guide to the Manufacture of Sweaters, Knit Shirts, and Swimwear. National Knitted OUterwear Association.
YARN TESTING – A number of simple tests are available to the knitter to spot check the yarns he purchases for moisture content, count, twist and yarn uniformity and appearance. Such checking is important for purposes not only of quality [...]
- ↑ "Spun Yarn Technology - 1st Edition". www.elsevier.com. Retrieved 2021-05-17.
- ↑ Meyers, Marc Andre; Chen, Po-Yun (2014). Biological Materials Science. Cambridge: Cambridge University Press. doi:10.1017/cbo9780511862397. ISBN 978-0-511-86239-7.
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