Textile Commodity Prices Diverge Sharply: Cotton Stands Alone as Synthetic Fibers Slide

Cotton and synthetic fibers are charting two dramatically different price trajectories. In the 26th week of 2026 (June 29-July 3), the overall textile commodity index fell 0.4% week-on-week, but cotton rose 2.34% to 17,790.67 yuan/ton, up 17.05% year-on-year. In stark contrast, acrylonitrile, polyester staple fiber, and PTA dropped 2.96%, 2.21%, and 1.54% respectively. The entire synthetic fiber chain showed weakness.

Cotton Chain: Cost Support and Demand Resilience

Cotton's strength was not isolated. Cotton yarn 21S and 32S prices held flat at 23,400 and 24,725 yuan/ton respectively, but rose 7.50% and 6.57% year-on-year. This indicates downstream weaving and end-user orders are absorbing current prices without strong negative feedback.

Viscose staple fiber, rayon yarn, and spandex also remained flat, but spandex surged 21.09% year-on-year and viscose staple fiber rose 9.06%, suggesting structural demand in cotton substitutes or elastic fibers. Raw silk edged down 0.14% and fell 9.72% year-on-year, reflecting greater sensitivity to export order fluctuations, diverging from the cotton chain.

Synthetic Fiber Chain: Raw Material Plunge and Inventory Pressure

The decline in synthetic fibers concentrated in raw materials. PTA fell 1.54% to 5,696.34 yuan/ton, polyester staple fiber dropped 2.21% to 7,255.83 yuan/ton, and acrylonitrile plunged 2.96% to 9,833.33 yuan/ton. Polyester filament FDY and DTY also fell 1.27% and 0.53% respectively. Polyester yarn slipped only 0.42%, but the direction was clear.

Polyester POY and nylon series (DTY/FDY/POY) held steady for the week, but year-on-year gains of 5.5% to 13.99% suggest prior cost-driven increases are being digested by weak downstream demand. Acrylonitrile still rose 22.92% year-on-year, but its sharp weekly drop hints at a supply-demand inflection point—new capacity and sluggish demand in acrylic fiber and ABS are pushing inventory pressure downstream.

Industrial Implications and Procurement Windows

For textile hubs like Shengze, Keqiao, and Nantong, the current scenario demands different strategies. Cotton mills face high raw material costs but can still pass them through to yarn prices; however, they should watch for price corrections after the new crop arrives in Q4. Synthetic fiber weavers benefit from falling raw material costs—weekly drops in polyester staple fiber and PTA, if sustained, will significantly improve margins for grey fabrics and finished textiles.

A key variable is crude oil prices. PTA and polyester series are closely linked to oil; if international oil prices remain weak, synthetic raw materials may have further downside. Cotton, driven more by domestic supply-demand and government reserve policies, is less likely to correct in the near term.

Practical Recommendations

For Buyers - Cotton yarn purchases can focus on the window before September, as current year-on-year gains remain manageable. Lock in forward orders to hedge against potential price drops after the new cotton harvest. - Delay large orders for polyester staple fiber and PTA until weekly declines narrow or stabilize; build positions in batches to average costs. - Acrylonitrile shows the steepest drop, but monitor downstream acrylic fiber demand recovery. If orders pick up, current low prices present a good restocking opportunity.

For Exporters - Maintain current quotes for cotton-based export orders, but include raw material price fluctuation clauses in contracts to avoid customer price pressure if cotton suddenly falls. - For synthetic fiber fabrics (polyester, nylon), consider moderate price concessions to win orders, as falling raw material costs provide room. Control credit risk. - Monitor demand for polyester staple fiber and PTA in Southeast Asia. If domestic prices remain below international quotes, an export arbitrage window may open.