Web Menu

Product Search

Language

Share

Home / Product / ACY (Air Covering Yarn)
ACY (Air Covering Yarn)

ACY (Air Covering Yarn)

ACY air covering yarn refers to DTY yarn and spandex being fed in parallel into a specially designed air-jet core. Compressed air at a preset constant pressure is intermittently released through the jet, and the air dynamics wrap the filaments of nylon DTY twisting the spandex to form uniform network adhesion points; this process is called two-step spinning. Air covering yarns can also be processed in one step on an integrated machine using POY. This is called one-step spinning. One-step spinning is suitable for large-scale production and offers a price advantage. ACY yarns can be used in various textile products and are a primary category for the deep processing elastic materials. Fabrics made from these yarns exhibit elasticity, fluffiness, softness, and easy dyeability.

Product Parameters

 

Product

Specifications

Filament

Draft

Color

ACY

1015

10f

1.8-3.5

Raw

1020

20f

1.8-3.5

Raw

1515

10f

1.8-3.5

Raw

1520

20f

1.8-3.5

Raw

2020

20f

1.8-3.5

Raw

2030

14f/20f

1.8-3.5

Raw

2040

24f/34f

1.8-3.5

Raw

2050

24f/36f/48f

1.8-3.5

Raw

3020

20f

1.8-3.5

Raw

3030

14f/20f

1.8-3.5

Raw

3040

24f/34f

1.8-3.5

Raw

3050

24f/36f/48f

1.8-3.5

Raw

4020

20f

1.8-3.5

Raw

4030

14f/20f

1.8-3.5

Raw

4040

24f/34f

1.8-3.5

Raw

4050

24f/36f/48f

1.8-3.5

Raw

 

Please get in touch with us if you need specifications or processes different from the above table. Contact information: [email protected]

 

Product Knowledge of Air Covering Yarn and Conventional Covering Yarn

I. Product Definitions

Air Covering Yarn 

● During production, high-speed airflow is utilized to encapsulate two or more types of fibers or yarns together.
● Structure: The core yarn is loosely wrapped, with gaps existing between the fibers. Intermittent bonding points adhere spandex and nylon; the Air Covering yarn partially exposes the spandex, resulting in a looser structure.

 

Conventional Covering Yarn

● Mechanical devices (such as spindles and rollers) are employed to tightly wind outer fibers around the core yarn, forming a uniform and dense covering layer.
● Structure: The core yarn is tightly wrapped, with fibers arranged regularly.

 

 

II. Comparison of Processes and Properties

 

Comparison Dimension

Air Covering Yarn

Conventional Covering Yarn

Production Process

Relies on airflow, no complex machinery

Relies on mechanical winding devices, more precise control

Covering Density

Loose covering, core yarn and outer fibers are less tightly combined

Tight covering, outer fibers evenly adhere to the core yarn

Elasticity and Loftiness

High elasticity, soft and fluffy (suitable for elastic products)

Lower elasticity, compact structure (suitable for shaping needs)

Strength and Wear Resistance

Lower strength, prone to pilling

High strength, great wear resistance

Cost

Lower equipment investment, less energy consumption

Higher equipment investment, greater energy consumption

 

 

III. Yarn Application Areas

 

Yarn Type

Application Areas

Product Advantages

Air Covering Yarn

Knitted, woven, athletic wear, underwear (seamless underwear), shapewear, socks, medical bandages, and other textiles requiring high elasticity, softness, and comfort.

Good air permeability, fitness body, suitable for dynamic stretching.

Conventional Covering Yarn

Knitted, woven, seamless underwear, socks, outdoor sportswear, workwear fabrics, industrial fabrics, and other textiles requiring high strength, abrasion resistance, and washability.

Smooth surface, anti-pilling, suitable for products requiring shaping and durability.

 

 

IV. How to Choose Yarn?

 

Choose Air Covering Yarn: When elasticity and softness are prioritized (such as seamless underwear, yoga pants, elastic socks). You can choose our 2030, 2050 products , or customization is available.

Choose Conventional Covering Yarn:  When anti-pilling and abrasion resistance are prioritized (such as seamless underwear, outdoor sportswear, high-end fabrics). You can choose our 3030, 4030 products, or customization is available.

ACY air covering yarn refers to DTY yarn and spandex is fed in parallel into a specially designed air-jet core. Compressed air at a preset constant pressure is intermittently released through the jet, and the air dynamics wrap the filaments of nylon DTY twisting the spandex to form uniform network adhesion points; this process is called two-step spinning. Air covering yarns can also be processed in one step on an integrated machine using POY. This is called one-step spinning. One-step spinning is suitable for large-scale production and offers a price advantage. ACY yarns can be used in various textile products and are a primary category for the deep processing of elastic materials. Fabrics made from these yarns exhibit good elasticity, fluffiness, softness, and easy dyeability.

About Narik
Company Profile

As the high-end international yarn brand of Jinzili Group, Narik carries forward the Group’s deep industry expertise. Since its establishment in 2017, Narik has been dedicated to technological breakthroughs and product innovation in the seamless textile industry.
Its parent company, Jinzili Group which was established in 2001, is headquartered in Yiwu, Zhejiang—China’s hub for seamless underwear. The company specializes in the R&D, production, and sales of a wide range of yarns, utilizing PA6 as raw materials. Its product portfolio includes POY, FDY spinning, DTY elastic yarn, ACY synthetic fiber, SCY synthetic fiber, colored elastic fiber, and eco-friendly recycled fiber.
As one of the earlier and stable yarn suppliers in China, Jinzili Group has served 1,000+ clients worldwide with products that are widely used in seamless underwear, yoga wear, socks, and one-piece leggings. Today, the Group operates three major yarn production bases, ensuring strong supply capabilities—and continues to expand.

Certificate Of Honor
  • ОЕКO-TEX STANDARD 100
  • GRS Certificate
News

  • Q: Ordering Information / Payment

  • Q: Packing

  • Q: Delivery

  • Q: Why choose us?

  • Q: How to make an order?

Industry knowledge

Air Covering Yarns

Composite yarns wrapping nylon/polyester around spandex via air jets, merging elasticity with outer fiber strength. Faster production than mechanical twisting, yielding smooth, lightweight, soft yarns. Used in sportswear, underwear, hosiery for consistent stretch, fit, and fabric recovery. Adjustable via core/covering denier; good dye uptake for colored fabrics.

Covering Yarns Production

Core (spandex/rubber) + outer covering (polyester/nylon/cotton). Methods: mechanical (spindle-wrapping for single/double cover) vs. air covering (air-entangled for softness, speed). Offer controlled elasticity, protect cores from stress, used in stretch fabrics for socks, activewear, medical textiles. Customizable via material choice for stretch, texture, durability.