Comparison between DTY and FDY: performance differences in different application scenarios

DTY (Drawn Textured Yarn) and FDY (polyester fully stretched yarn) are two common yarn types in the textile industry. They show significant performance differences in different application scenarios. The following is a detailed comparison of the performance differences between the two in different application scenarios:

1. Differences in production processes
DTY: DTY is a product made from yarn after processing and deformation. Its production process involves yarn pre-processing, deformation treatment (such as false twisting) and winding into a cylinder. This deformation treatment gives DTY yarn unique physical properties.
FDY: FDY is directly made from fiber spinning process under high temperature and high pressure. Its production process is more direct and does not involve additional deformation processing. FDY yarn is closer to the direct fiber filament form and has stable fiber structure and performance.

2. Differences in performance characteristics
Elasticity and softness
DTY: DTY yarn has excellent elasticity and resilience and can withstand greater stretching and deformation while maintaining good softness. This property makes DTY advantageous in the production of textiles where softness and comfort are required.
FDY: FDY yarn is known for its high strength and high wear resistance, but is relatively weak in elasticity and softness. Its fibers are straight, giving the fabric a smooth appearance and good breathability.
Strength and wear resistance
FDY: Since FDY yarn has been fully stretched and heat treated during the production process, it has high strength and wear resistance, and is suitable for fields with high requirements on yarn performance, such as ropes and cords for industrial purposes.
DTY: Although DTY also has a certain degree of strength and wear resistance, its performance in this regard is slightly inferior to FDY.

Dyeing and post-processing
DTY: DTY yarn performs well in dyeing and post-processing, giving fabrics richer colors and textures. Its unique fiber structure is beneficial to dye penetration and fixation.
FDY: FDY yarn also has good dyeing properties, but due to its straight fibers, special attention may be required in some specific dyeing processes to maintain the flatness and appearance of the fabric.

3. Differences in application scenarios
DTY:
Knitwear: DTY’s softness and elasticity make it ideal for knitwear such as T-shirts, sweatshirts, etc.
Sofa fabrics and decorative textiles: These products require good hand feel and comfort, and DTY yarns can meet these requirements.
Stretch fabrics: The elastic properties of DTY give it an advantage in the production of stretch fabrics.
FDY:
Simulated silk fabrics and clothing and home textiles: FDY yarn gives the fabric a smooth appearance and good air permeability, and is suitable for making simulated silk fabrics and clothing and home textile products.
Industrial use: For products such as ropes and cords that require high strength and high wear resistance, FDY yarns perform well.
Garment manufacturing: Although DTY is also widely used in garment manufacturing, FDY is more suitable in certain garments that require a smooth appearance and good breathability.

There are significant differences between DTY and FDY in terms of production process, performance characteristics and application scenarios. The choice of yarn depends on specific product needs and production requirements. In practical applications, textile companies should select appropriate yarn types based on the end use and performance requirements of the product.

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