Spandex Is A Synthetic Fiber That Has Remarkable Elasticity And Is Mostly Used In Sportswear1/6/2023 Spandex is used for a variety of consumer and industrial applications. It is especially popular in apparel. It is a polymeric fiber with elastomeric properties. The fiber consists of strands of long, soft segments and short, rigid segments. The rigid segments bond with each other to give the fiber structure. Spandex is used in a variety of fabric applications. It improves elasticity and drape of fabric; it also imparts support to garments. Several production techniques are used to make Spandex; the most common is solution dry spinning, accounting for over 90 percent of world production. In this method, prepolymers containing hydroxyl groups (-OH) on the macroglycols react with isocyanates to form long chain polymers. Other methods include melt extrusion and reaction spinning. These processes require catalysts like diazobicyclo octane and low molecular weight amines to initiate the formation of long chain polymers. Stabilizers are also added to protect the fibers from damage caused by heat and light. Spandex is used in many different types of underwear, from sports shorts to men's spandex boxer briefs. It has a lot of advantages, including stretchiness and the ability to return to its original shape once it's stretched. Spandex doesn't breathe as well as natural fabrics like cotton and wool, which can make it more prone to skin irritations, yeast infections and urinary tract infections. It is also a potential source of exposure to PFAS (perfluoroalkyl and polyfluoroalkyl substances), which are manmade chemicals that have been shown to cause cancer and other health problems. Period underwear is usually made from a mixture of synthetic fibers, like polyamide and elastane, which have a very soft, elastic feel. They are strong and don't crease or burl, making them good quality and popular choices for underwear that's not made from cotton. As a result of the increasing focus on physical fitness, there are now sports socks for men and women that have been designed to meet specific needs. Some of these include ribbed construction through the ankle, arch and calf areas to support the feet during active periods. Another common application is to use a stretch terry knit stitch throughout the socks. This wicks moisture away from the skin to the outer layer of fabric, where it dries faster. Socks made from synthetic fibers are often paired with natural fibers, such as wool or cotton, to reduce the cost of production. Acrylic is a commonly used synthetic fiber that has softness, moisture-wicking and color retaining properties. Spandex is a very popular fabric used in sportswear, as athletic activities often require clothes that ride close to the skin. It is a synthetic fiber that is known for its remarkable elasticity. Its innumerable polymer strands allow it to be stretched up to 700 percent without wearing out. This makes it a good choice for hosiery, swimwear, sportswear, socks, gloves, cycling shorts and motion capture suits. The process to make spandex begins with a reaction between two types of prepolymers, one is a macroglycol and the other a diisocyanate. These prepolymers create the backbone of the fiber. Spandex is a versatile polymer that can be used for a variety of applications. Its elasticity makes it perfect for clothing that needs to stretch as well as stay snug at the same time, such as swimwear and bicycling apparel. It is a synthetic polymer that is composed of at least 85 percent polyurethane. It is typically made from a long-chain polyglycol mixed with a short diisocyanate monomer. The prepolymer is reacted with diamine acid in a process called solution dry spinning, the most commonly used method of production. The resulting liquid polymer is then loaded into a cylindrical spinning cell, also known as a spinneret, and spun through small holes. The fibers are then exposed to pressurized air and twisted into solid strands of the desired thickness. A finishing agent such as magnesium stearate is used to coat the strands. You May Watch the Video for More Details- https://www.youtube.com/watch?v=ZJsiKFwAZEM
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