What is Spandex Covered Yarn?

Spandex covered yarn, also known as lycra spandex yarn or elastic covered yarn, is a unique type of textile material that combines the elasticity of spandex yarn (also known as elastane or Lycra) with the strength and texture of other core yarn materials( 100% polyester or 100% nylon). This article will delve into the composition, manufacturing process, applications, and benefits of spandex covered yarn.

（一）Composition

Spandex covered yarn is typically composed of a core yarn made from materials such as polyester, nylon which is then covered or encapsulated by a thin layer of spandex. The core yarn provides the bulk and structural integrity, while the spandex coating allows for the stretch and recovery properties that are desirable in many applications.

（二）Manufacturing Process

The production of spandex covered yarn involves several steps:

1. Core Yarn Preparation: The core yarn is prepared from the chosen material, which can be a single filament or a plied yarn.
2. Spandex Extrusion: Spandex is then extruded onto the core yarn. This process is carried out in a heated environment where the spandex is in a molten state, allowing it to adhere to the core yarn.
3. Cooling and Setting: After extrusion, the yarn is cooled to set the spandex layer. This step is crucial for maintaining the elasticity of the spandex.
4. Winding: The covered yarn is then wound onto bobbins or spools for further processing or direct use in manufacturing.

（三）Applications

Spandex covered yarn is widely used in the textile industry due to its exceptional elasticity and comfort. Some of the key applications include:

1. Apparel: It is commonly used in activewear, sportswear, and swimwear for its ability to stretch and return to its original shape.
2. Medical Wear: In the medical field, it is used for compression garments that need to maintain their shape and elasticity over time.
3. Shoes and Accessories: The yarn can be found in the uppers of sports shoes and in various accessories like gloves and wristbands.

（四）Benefits

The benefits of spandex covered yarn are numerous:

1. Elasticity: It offers excellent stretch and recovery, making it ideal for garments that need to move with the body.
2. Comfort: The yarn is soft and comfortable against the skin, enhancing the wearer’s comfort.
3. Durability: The combination of the core yarn and spandex coating makes the yarn highly durable and resistant to wear and tear.
4. Aesthetics: It can add a unique texture and sheen to fabrics, enhancing their visual appeal.
5. Easy Care: Spandex covered yarn is generally easy to maintain and can be washed and dried without losing its elasticity.

Ymthread Common Specifications

(一) Spandex Covered Yarn

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