Spandex yarn of 20 denier and finer is becoming one of the hottest tracks in the chemical fiber industry. On August 18, Xinxiang Chemical Fiber started the second phase of its 100,000-ton functional spandex project. Behind this move lies a profound shift in the industry's supply-demand landscape: low-end capacity is being phased out, while the penetration of high-end fine-denier products continues to rise. For downstream buyers and trading companies, understanding the direction of this capacity layout matters more than the groundbreaking ceremony itself.
Background
The second phase of Xinxiang Chemical Fiber plans to build a main production workshop with an annual output of 50,000 tons of spandex, covering a building area of about 65,000 square meters, all dedicated to producing functional fine-denier spandex of 20D and below. The project adopts continuous polymerization dry spinning technology, with core equipment featuring the world's unique 200-position spinning duct, and is equipped with automatic doffing and intelligent sorting systems. The entire process is digitally controlled. The first phase is expected to be operational by the end of this year, while the second phase aims at the strategic window of the 15th Five-Year Plan, seeking to establish a first-mover advantage in the high-end segment.
This investment decision is not an isolated event. Industry public data shows that the current spandex market is undergoing structural differentiation: competition in conventional specifications is fierce, with prices under pressure; while demand for ultra-fine, functional, and green products continues to expand, becoming a core need for textile industry upgrading. The iteration of downstream sectors such as sportswear, high-end home textiles, and functional intimate apparel has directly driven the market penetration of 20D and finer spandex. Its advantages of skin-friendliness, delicate elasticity, and strong adaptability make it the preferred elastic fiber for high-end fabric development.
Xinxiang Chemical Fiber's capacity layout precisely targets this trend. The project deeply integrates the concept of "5G + Industrial Internet," with full-process intelligence from spinning to doffing and sorting, and the power system adopts high-efficiency machine rooms and AI-based energy distribution. This means that competition in high-end spandex has extended beyond pure product performance to a comprehensive contest of production efficiency and green manufacturing costs. For the traditional chemical fiber industry, this is not just capacity expansion but a typical sample of transformation from scale-driven to quality-and-efficiency-driven growth.
Industry Impact
For upstream raw material suppliers, the operation of Xinxiang Chemical Fiber's second phase will bring stable incremental demand for raw materials such as PTMEG and MDI, especially with a higher share of high-quality materials. More profound is that the scaled application of unique technologies like the 200-position spinning duct may rewrite the industry's technical threshold—when single-line capacity and intelligence level become new benchmarks, small and medium enterprises with traditional production lines will face greater elimination pressure.
For downstream buyers, the supply pattern of high-end fine-denier spandex is being reshaped. High-end spandex that previously relied on imports will be partially replaced by domestic capacity, enhancing supply chain self-sufficiency and improving controllability of delivery time and cost. However, it should be noted that capacity release takes time, and the supply-demand balance for high-end fine-denier spandex will remain tight in the short term, with prices likely to stay high. Buyers should lock in quality suppliers in advance to avoid production disruptions during the capacity ramp-up period.
For trading companies, the signal from this project is that China's spandex industry is shifting from "large volume, low price" to "technology premium." The batch supply of 20D and finer functional spandex will enhance the competitiveness of domestic fabric and garment exports, especially in categories with strict elasticity requirements such as sportswear, outdoor, and high-end underwear. Meanwhile, the quality consistency brought by digital factories helps meet international brands' requirements for supply chain traceability and ESG indicators.
