Types and Introduction of Air Covered Yarn
Air Covered Yarn (ACY) is a process in which two threads - cover yarn and elastic core-spun yarn - are intertwined using compressed air, offering several advantages over conventional covered yarn production: faster speed and superior elastic quality are just two examples; furthermore, the process is eco-friendly since no chemical treatments are required to produce ACCY yarn, making it widely popular in lingerie, socks, seamless garments and hosiery products due to its premium softness, comfort, and high elasticity.
Air-covered yarns typically fall into two broad categories, single and double-covered. A non-elastic multifilament yarn may be combined with an elastic core spun yarn through either single or double-covering processes, or alternatively, the core-spun can be intermingled with spandex/lycra-covered yarn for double coverage. These techniques combine different fabric characteristics into unique fabric qualities depending on its intended application.
Covering yarn is a thread wrapped around a core yarn to confer flexibility and other desirable properties to it. Covering yarn typically features filament fibers like polyester or nylon while the core yarn may feature natural materials like cotton or wool for strength, durability and elasticity in finished fabrics. Together these two types of yarn provide fabrics with their desired strength, elasticity, and longevity.
Covered yarn comes in many varieties, each offering distinct advantages and uses. Your choice depends on the requirements for your final product and desired knitting performance, hand feel, and dyeing effect - for instance, fine denier Nylon-covered yarn is best used in lightweight and delicate fabrics while medium denier covering yarn provides a balanced combination of strength and softness.
Air-covering technology is an innovative process of producing elastic yarn without using conventional covering machines with intermingling. Drawing textured yarn (DTY) and elastane can be intermingled by passing them through an air jet powered by compressed air; this enables evenness and quality coverage at 30-50 times the speed of traditional covering methods.
Air-covering offers several distinct advantages over other methods for yarn production, with its primary advantage being that it can produce both single and double-covered yarns - particularly suitable for demanding applications in hosiery, lingerie, and underwear markets.