JINGGONG Textile Machinery

The covered-yarn machine is able to produce both single covering and double-covering which feature an extremely high performance and works to have the yarns of different natures as the cored wires, such as spandex, low stretch yarn, elastic ribbon, filament, metallic yarns and LVREX high stretch yarn; and have cotton yarn, synthetic fiber, polyamide, polyester, real silk and metallic yarns as the covering yarns.

What is yarn covering machine?

The Yarn covering machine (Covered-yarn machine) is able to produce both single covering and double-covering which feature an extremely high performance and works to have the yarns of different natures as the cored wires, such as spandex, low stretch yarn, elastic ribbon, filament, metallic yarns and LVREX high stretch yarn; and have cotton yarn, synthetic fiber, polyamide, polyester, real silk and metallic yarns as the covering yarns.

Spandex/Elastic Yarn Covering Machine, Air Covering Machine

HKV141D Spandex/Elastic Yarn Covering Machine (Single Yarn Covering Machine)

HKV141D Spandex/Elastic Yarn Covering Machine (Single Yarn Covering Machine), Air Covering Machine is suitable for the production of 70D~600D covered yarns of different specifications (covering between nylon, polyester or cotton yarn and spandex). The advantage of low power consumption. Its final products are mainly used in knitting fields such as hosiery, weaving and underwear....

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What is covering machine?

The air yarn covering machine has the following functions: it feeds continuous fibers such as polyurethane yarn, generally known as spandex, nylon and polyester, into an interlacing nozzle with a feed roller set at arbitrary speed, interlaces that yarn with air using turbulence generated by compressed air inside the nozzle, and then produces yarn known as ACY.

What is air covering yarn(ACY)?

Air covering produces elastic yarn by combining textured yarn with elastane. Both threads are interlaced by running them through an intermingling jet where air pressure is applied. One or more drawn textured yarns (DTY) are overfed to enter the air jet with minimal tension and create intermingling points. A specific draw ratio is applied to the elastane during the air covering process and creates the required elasticity for the final product. The structure of air-covered yarn (ACY) is quite different from the conventional covered yarn. ACY alternates intermingling points and open lengths, whereas filament yarn is wrapped around the elastane for CCY.

What is air covering yarn process?

The efficiency of the air covering yarn process is much higher than conventional covering since DTY and elastane are interlaced and not twisted together. The air covering process eliminates the need for high rotational speed, which is the limiting factor of the conventional covering process. The production speed for air covering is typically 30 to 50 times higher than conventional covering.

Air covering is not only economically interesting for its superior efficiency, but the high quality and the excellent ACY properties also make it an attractive solution whenever production of elastic yarn is needed.