Core-spun Yarn vs Covered Yarn: Key Differences

Ⅰ. Difference in Core Yarn and Wrapping Material

Take spandex core-spun yarn and spandex covered yarn as examples

1、Core-spun yarn generally adopts synthetic filament yarn with high tenacity and good elasticity as the core, wrapped with staple fibers such as cotton, wool and viscose.For example, spandex core-spun yarn is made by wrapping spandex filament with staple fibers. It takes spandex yarn as the core and is covered with non-elastic staple fibers; the core filament is usually not exposed when stretched.

2、Covered yarn uses filament or staple fiber as the core yarn, which is wrapped with another type of filament or staple fiber strand. The outer wrapping yarn covers the core yarn in a spiral manner.

Ⅱ. Different Manufacturing Equipment

1、Core-spun yarn is produced on ring spinning frames. 2、Staple fiber covered yarn is made on doubling and two-for-one twisting machines, while filament covered yarn is produced on filament two-for-one twisting machines.
core-spun yarn

III. Difference in Production Process

core-spun yarn

1、Core-spun yarn is generally produced on ring spinning frames. During the drafting of roving yarn, the inner textile raw material to be wrapped is fed in. Typical examples include cotton-wrapped spandex, polyester/viscose-wrapped spandex, cotton-wrapped polyester filament, and polyester-wrapped polyester filament.
2、Covered yarn is processed on twisting machines: one yarn serves as the core, while another yarn spirally wraps around it. A common example is spandex as the core yarn wrapped with polyester or nylon filament.