trademark (also Invista's) is Elaspan. Since the ratio of the component materials produces fibers with varying characteristics, it is strictly controlled. The compounds are mixed in a reaction vessel and under the right conditions they react to form a prepolymer. Spandex is used in a wide range of garments due to its high elasticity and significant strength. If the spandex fibers are interwoven with other fibers such as nylon or polyester, special dying methods are required. Other characteristics can be improved by using different prepolymer ratios, better catalysts, and various fillers. At first, their goal was to develop a durable elastic strand based on synthetic polymers. 16 Oct. 2020 . Can be degraded by concentrated alkalis at high temperatures. It’s then forced into a metal plate called a spinnerette. Compounds which inhibit fiber discoloration caused by atmospheric pollutants are another type of stabilizer added. Spandex is a type of elastane fiber that is also referred to as dorlastan or lycra. comprised The types of garments which incorporate spandex include: Today most clothes containing spandex end up as non-recyclable waste once they have been worn out, as fabric blends containing spandex are difficult to recycle. The macro-glycol can be a polyester, polyether, polycarbonate, polycaprolactone or some combination of these. The amorphous segments remain in an elongated state. Has a serrated structure that holds it in place and prevents it from slipping. https://www.textileworld.com/textile-world/features/2000/03/fillattice-stretches-its-reach-globally/, "What Came First: The Yoga Pant Or The Skinny Jean? CHARACTERISTICS OF SPANDEX. Since it is lightweight and does not restrict movement, it is most often used in athletic wear. He earned a German patent for his synthesis in 1952. When the stretching force is removed, the linear, low entropy, soft segments move back to the preferred randomly coiled, higher entropy state, causing the fiber to recover to its original shape and length. 4. Some examples of areas where spandex fibers are used include the making of tights, stretchable jeans, swimwear, lingerie straps, socks, corsetry, medical products that require elasticity and upholstery. Other characteristics can be improved by using different prepolymer ratios, better catalysts, and various fillers. while elastane is most often used elsewhere. Retrieved October 16, 2020 from Encyclopedia.com: https://www.encyclopedia.com/manufacturing/news-wires-white-papers-and-books/spandex. In response, DuPont reimagined Lycra as the aerobic fitness movement emerged in the 1970s. ." [14] Spandex proved such a popular fiber in the garment industry that by 1987 DuPont had trouble meeting worldwide demand. Some applications of spandex are: Your email address will not be published. The multifilament fibers are more absorbent than the monofilament fibers. long In the 1990s a variety of other items made with Spandex proved popular, including a successful line of body-shaping foundation garments sold under the trade name Bodyslimmers. https://www.encyclopedia.com/manufacturing/news-wires-white-papers-and-books/spandex, Romanowski, Perry "Spandex manufactured Encyclopedia.com. The solvent helps make the solution thinner and more easily handled. Continue to Fiber/Fabric Care Or, Return to Seminar Index Two primary motivating factors prompted their research. The classic AC air covering machine can produce the spandex fibers through any of the following means: By the 1980s, as the fitness trend reached a peak in the West, trendsetters began wearing the shorts on the street. [8] This modification produced a stretchy fiber that could withstand high temperatures. The first step produces the pre-polymer by mixing diphenylmethane diisocyanate monomer with micro polyester in a reaction vessel. To initiate this reaction, a catalyst such as diazobicyclo[2.2.2]octane must be used. [11] At this time, women began to emerge as a significant group of consumers because of their need for underwear and hosiery.

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