The polyester staple fiber market is witnessing a clear divergence. On July 22, 2026, public quotes showed industrial fiber balls (regular grade, diameters 30-50mm) holding firm at 15,500 RMB/ton, while spinning-grade 1.56dtex×38mm cotton-type PSF fell to 7,630 RMB/ton—a price gap of over 7,800 RMB/ton, far exceeding historical averages. This structural split reflects profound shifts in downstream demand patterns.
Industrial Fiber: Rigid Demand Supports High Prices
Industrial-grade PSF, particularly fiber balls for water treatment, has strengthened since Q2 2026. Suppliers like Henan Kaijie quoted a uniform 15,500 RMB/ton for 30mm, 40mm, and 50mm diameters with no room for negotiation. This price level is about 12% higher year-on-year, driven by concentrated environmental infrastructure projects. Municipal wastewater treatment and industrial circulating water purification orders remain stable, making water treatment filter media a rare 'seller's market' for PSF.
From the cost side, feedstock PTA and MEG prices have been range-bound recently, providing no extra cost push for industrial fibers. This suggests the 15,500 RMB/ton quote primarily reflects a supply-demand gap—strict specifications for fiber balls (diameter, density, specific surface area) limit the number of stable suppliers, giving sellers pricing power.
Spinning Grade: Weak Demand Forces Price Cuts
In stark contrast, spinning-grade 1.56dtex cotton-type PSF (melt direct spinning, first grade) was quoted at only 7,630 RMB/ton on July 22, down about 1.8% from the start of the month and over 6% year-on-year. Zhejiang Tianchen Textile Supply Chain quoted identical prices for three brands (Xintuo, Huaxi, Huahong), indicating the market has entered a price war.
The 7,630 RMB/ton level is approaching the cash cost line for some small and medium producers. Plant operating rates in main producing areas like Xuzhou and Wuxi have dropped to around 75% in July, with some lines shifting to differentiated products to avoid homogeneous competition. The core problem lies downstream: textile and apparel end-consumption recovery has fallen short of expectations, weavers are reluctant to purchase, and gray fabric inventory days have climbed to about 32, forcing spinners to cut raw material stocks.
What the Price Divergence Means
The price scissors between the same fiber type but different applications signal a structural shift in downstream demand. Industrial sectors (water treatment, construction, automotive interiors) have rigid demand that is less affected by economic cycles, while the textile and apparel sector is highly dependent on consumer confidence and export orders. Global textile demand growth is slowing, and restocking by European and American markets is weaker than expected.
For supply chain players, this divergence implies:
- Spinning-grade PSF profit margins have been squeezed to the limit; whether prices stabilize depends on autumn order placement.
- High industrial fiber prices may attract some capacity conversion, but technical barriers (e.g., fiber ball forming, water treatment performance testing) are hard to overcome quickly, so the supply pattern won't change soon.
- If the price gap widens further, downstream users might attempt substitution—using cheaper spinning-grade PSF in non-critical water treatment applications, though performance risks need assessment.