The basic concept of core-spun yarn
Spandex Covered Yarn is a type of composite yarn made up of two or more fibers. It is usually composed of an elastic fiber (such as spandex) as the core yarn, and is then wrapped with other fibers (such as cotton, polyester, viscose, etc.) for spinning.
## 2. Characteristics of Core-Spun Yarn Structure
1. **Core layer**: Usually made of elastic fibers (spandex), providing elasticity and resilience.
2. **Outer layer**: Natural fibers or chemical fibers, determining the appearance and feel of the fabric.
3. **Wrapping method**: There are two forms: single wrapping and double wrapping.
