What are the production techniques of Drawn Textured Yarn?

Drawn Textured Yarn is produced through a series of manufacturing processes that involve drawing and texturing filament yarn to achieve its characteristic properties. The production techniques can vary slightly based on the type of synthetic fiber used (such as polyester or nylon), the desired end properties, and the specific machinery used.

Extrusion: The process begins with extruding polymer chips or pellets through spinnerets to form continuous filaments. These filaments are referred to as filament yarn.

Drawing (Orientation): The filament yarn is first subjected to a drawing process, where it's passed through heated rollers. The heat softens the filament while tension is applied to align the polymer molecules, increasing the yarn's strength and orientation.

Texturing: Texturing is the key step in creating the textured appearance of Drawn Textured Yarn. There are a few methods for texturing:

a. Air Jet Texturing: This method involves feeding the drawn filament yarn through high-speed air jets. The air turbulence causes the filaments to intertwine and create crimps or coils. The yarn is then heat-set to stabilize the textured structure.

b. False Twist Texturing: In this method, the drawn filament yarn is twisted, and then the twist is set by applying heat. As the twist is released, the filaments curl, creating a textured effect.

c. Stuffer Box Texturing: Here, the drawn filament yarn is fed into a stuffer box, which has irregularly shaped chambers. The yarn is alternately compressed and released, causing it to take on the textured appearance.

d. Knit De-knit Texturing: This technique involves knitting the filament yarn into a fabric, which is then heat-set. After setting, the fabric is unraveled, and the yarn retains a textured appearance.

Heat-Setting: After texturing, the yarn is heat-set to fix the textured structure and prevent it from reverting to its original state. Heat-setting also helps to enhance the yarn's properties and stability.

Winding: The textured yarn is wound onto spools or cones, making it ready for use in weaving, knitting, or other textile processes.

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  DTY Series

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  FDY Series

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  POY Series