How is the air permeability of AIR COVERED YARN achieved?

1. Structural features
Combination of core and outer fiber:
AIR COVERED YARN uses spandex as the core and is covered with one or more layers of other fibers, such as cotton, polyester, etc. The spandex core has good elasticity as a whole due to its high elasticity.
Air covering technology:
During the production process, the spandex core and the outer fiber are regularly sprayed by high-pressure air through a specific nozzle to form a rhythmic network point. This structure allows certain gaps and channels to exist inside the yarn, which is conducive to the circulation of air.

2. Material selection
Elasticity of spandex core:
Spandex is a highly elastic fiber with good resilience and can quickly return to its original state. This elastic property enables the yarn to maintain a certain gap when subjected to external force, which is conducive to air permeability.
Air permeability of outer fiber:
Outer fibers such as cotton and polyester fibers have certain air permeability. The air permeability of these fibers is closely related to the overall air permeability of the yarn.

3. Breathability realization mechanism
Gaps and channels:
The gaps and channels inside AIR COVERED YARN provide conditions for air circulation. When the external air contacts the fabric, these gaps and channels allow air to pass through, thus achieving a breathable effect.
Moisture absorption and release properties of fibers:
Outer covering fibers such as cotton have certain moisture absorption and release properties. When the human body sweats, these fibers can absorb sweat and evaporate quickly, thereby keeping the fabric dry and breathable.
Adjustment of yarn structure:
By adjusting parameters such as the ratio of spandex core yarn to outer covering fiber and the twist of yarn, the breathability of AIR COVERED YARN can be further optimized. For example, increasing the number of layers of outer covering fiber or selecting fiber materials with better breathability can improve the breathability of the yarn.