On July 3, 2026, the polyester staple fiber (PSF) market recorded an unusual structural divergence: industrial-grade fiber balls for water treatment were priced at 15,500 yuan/ton, while spinning-grade cotton-type PSF (1.56dtex*38mm) was as low as 6,940 yuan/ton—a spread of 8,560 yuan. This gap far exceeds typical price differences among polyester products, signaling a fundamental split in demand logic along the supply chain.
Two Divergent Price Curves: Industrial vs. Spinning Grades
The high end is dominated by fiber balls (diameters 30mm, 40mm, 50mm) quoted by Henan Kaijie Water Treatment Co., Ltd. at a uniform 15,500 yuan/ton. This price has held steady for days, reflecting strong rigidity. As a water treatment filter medium, demand for fiber balls is directly tied to environmental policy enforcement—tighter industrial wastewater discharge standards and expansion of municipal treatment facilities create sustained, inelastic procurement. Suppliers enjoy strong bargaining power.
At the low end, the typical textile feedstock logic prevails. Cotton-type PSF prices reported by Zhejiang Tianchen Textile Supply Chain Co. and Hebei Chujiao Supply Chain Management Co. range from 6,940 to 7,320 yuan/ton. Among brands, Huahong (Wuxi, Jiangsu) is cheapest at 6,940 yuan; Yida (Suqian, Jiangsu) at 7,150 yuan; Xintuo (Xuzhou, Jiangsu) at 7,200 yuan; and Zhonglei (Huzhou, Zhejiang) at 7,320 yuan. The clear price gradient reflects differences in cost control and regional market strategy.
Regional Competition: Jiangsu Capacity Under Pressure, Zhejiang Brands Command Premium
By origin, low-priced supplies concentrate in Jiangsu Province—Wuxi, Suqian, and Xuzhou all undercut Zhejiang's Zhonglei brand. This is no coincidence. Jiangsu, a major PSF production base, has seen continuous capacity expansion, especially in northern Jiangsu, where energy cost advantages pressure southern Jiangsu and Zhejiang markets. Zhonglei's relatively high 7,320 yuan/ton price stems from its melt direct-spinning process ensuring quality stability, plus brand recognition in the Yangtze River Delta textile cluster.
Henan's fiber ball pricing operates independently of this competition logic. The 15,500 yuan/ton level indicates that its downstream buyers (sewage treatment plants, environmental engineering firms) are far less price-sensitive than textile companies. This explains why a single price list can contain products with a more than twofold price difference—they serve fundamentally different markets.
Downstream Transmission: Spinners Face Cost and Order Squeeze
Low cotton-type PSF prices may appear beneficial for spinners, but they signal weak end demand and inventory buildup in yarn and fabric stages. According to industry public data, pure polyester yarn operating rates dropped from 75% at the start of 2026 to about 60% by mid-year, with some small factories adopting a "work three days, rest four" pattern. In this context, lower raw material costs fail to boost margins; instead, they drag down finished product prices, creating a negative spiral of falling raw materials, yarn, and fabric prices.
Meanwhile, high fiber ball prices attract some PSF producers considering a production switch. But technical conversion is not instantaneous—fiber balls require specific product morphology, strength, and density, differing significantly from conventional spinning-grade PSF. The wide price gap will not narrow quickly.