What is Spandex Yarn
Spandex is the abbreviation of polyurethane fiber, which is a kind of elastic fiber. Spandex is generally composed of multiple filaments, generally 10D/root. Currently, there are 15D/root, or even 20D/root. The fewer theoretical roots, the better the evenness of the evenness, and the less chance of overlapping forms. Spandex Covered yarn is a stretch yarn formed by covering spandex filaments with filament or short fiber yarns in a spiral manner to cover the stretched spandex filaments.
Advantages of spandex yarn
Spandex has excellent elasticity. The strength is 2 to 3 times higher than latex yarn, the linear density is also finer, and it is more resistant to chemical degradation. Spandex has good acid and alkali resistance, sweat resistance, seawater resistance, dry cleaning resistance, and abrasion resistance.
In addition to good elasticity, spandex yarn also maintains the feel and appearance of general cotton yarn. Its fabric has the style, feel and performance of cotton cloth, and can be made into a variety of cotton fabrics; the clothing fabric of wool core yarn not only has general woolen fabrics The appearance and good warmth retention of the fabric are good, and the fabric can stretch freely when wearing it, which enhances the sense of comfort and can show a beautiful body shape. Compared with other elastic yarns, core-spun yarn has a remarkable feature, that is, the core yarn is not easy to be exposed when the yarn is stretched, so the dyeing effect is good, and it is suitable for products of various colors including dark colors. But its strength is lower than other stretch yarns. Core-spun yarn is the most widely used yarn variety among polyurethane elastic fibers.