A) Core Spinning: The spandex fiber is blended with other fibers, like nylon or polyester, and fed right into a device known as a Main spinning device. This machine spins the core yarn by wrapping the spandex fiber within the central Main, ensuring a uniform and constant protection. Ply yarn https://coveredspandexyarn25802.therainblog.com/31695016/smoking-thread-an-overview