China DTY: The core driving force of the stretch yarn industry chain

Today, as the global textile industry moves towards high performance and high added value, DTY (Draw Textured Yarn) is a synthetic fiber category with strong functionality and wide application range, which is increasingly attracting market attention. As the world's largest producer and exporter of chemical fibers, China's DTY products not only play an important role in the domestic textile and garment industry, but also occupy a leading position in the international market. Through technological innovation and industrial chain integration, China DTY industry is building a high-quality development path with international competitiveness.

Technical characteristics and processing principles of DTY
DTY is a textured yarn made of polyester POY (pre-oriented yarn) as raw material, which is deformed by high-speed stretching and false twisting. Its structure produces permanent curling through physical deformation, which makes the yarn have good elasticity, softness and fluffiness, while maintaining the original strength and wear resistance of polyester, and enhancing the comfort and fit of the fabric. DTY is commonly used in the manufacture of knitting, woven, home textiles, sportswear and industrial fabrics, and is an important link in the deep processing of polyester.

During the processing, the DTY equipment controls the temperature through the hot box, stretches the POY under specific tension and speed, and forms a spiral structure. After heat setting, the curling effect is fixed, so that the fiber maintains its characteristics during the subsequent weaving and dyeing and finishing process. This process not only places high demands on the stability of the equipment, but also requires strict process control capabilities to ensure the mechanical properties and surface quality of the product.

Development trend of China DTY
The China DTY industry started early, and after multiple rounds of technology introduction, capacity expansion and market cultivation, it has formed a complete industrial system. Jiangsu, Zhejiang, Fujian and other places have gathered a large number of DTY production enterprises, which have significant advantages in raw material supply, equipment manufacturing, technical support and logistics transportation. At present, domestic DTY products are constantly optimized in terms of variety specifications, dyeing suitability and spinnability, and the products are developing in the direction of functionality, differentiation, and ecological environmental protection.

In recent years, with the global emphasis on sustainable development, China DTY companies are also accelerating green transformation and promoting the application of recycled polyester DTY. Using recycled POY made from recycled PET bottle flakes for deformation treatment not only reduces carbon footprint, but also enhances the environmental label of products in the international market, becoming an important support for the compliance of the supply chain of European and American clothing brands.

In terms of products, DTY's innovation is mainly focused on functional development and fiber structure improvement. For example, by adding anti-ultraviolet, antibacterial, flame retardant and other additives, DTY is given more uses to meet the needs of medical, outdoor, home and other fields. At the same time, the introduction of composite fibers, porous structures, hollow curling and other technologies has also continuously improved the comfort and breathability of DTY fabrics.

Export competitiveness continues to improve, and branding is the next direction
China DTY not only meets the needs of domestic textile companies, but also exports a large number of products to South Asia, Southeast Asia, the Middle East, Latin America and other regions. With the reconstruction of the global supply chain and the transfer of manufacturing centers, Chinese DTY products have continued to grow in the international market with high cost performance, stable quality and fast delivery capabilities. Driven by the "Belt and Road" initiative, more and more Chinese DTY companies are getting closer to customers and optimizing service systems by building overseas warehouses and setting up local offices.

As a key category of basic chemical fibers, DTY is not only an intermediate product of the textile industry, but also a manifestation of industrial capacity due to its technical complexity and market flexibility. China DTY is at a critical stage of transitioning from "big" to "strong". Only by adhering to both technological innovation and green development can it continue to occupy a core position in the global textile industry chain.