The differences between spandex coated yarn and spandex core-spun yarn are as follows:
(1) The core yarn and the outer fiber of spandex core-spun yarn come from two components to fully reflect the characteristics of the core yarn and the outer fiber. The core yarn is not exposed, and the outer fiber can only be short fiber.
The coated yarn does not require the core yarn to be completely covered, and the outer fiber can be filament or single yarn, and is wound in special equipment (hollow spindle spinning machine), its purpose is to get fancy.
(2) Spandex cored yarn: it is a spandex covered with short fibers. The core is spandex wire, and the core wire is usually not exposed when stretched.
Spandex coated yarn: it is an elastic yarn formed by wrapping spandex with chemical fiber filament and also with spandex filament as the core, covering spandex filament with non-elastic staple fiber or filament in a spiral way. The core is exposed under tension.