The price data for textile bulk commodities on September 4, 2026, reveals a signal that deserves attention: profit is being redistributed along the supply chain. On that day, nylon POY, FDY, and DTY rose by 1.71%, 1.62%, and 1.55%, respectively, while upstream acrylonitrile fell 0.87% and PTA dropped 0.61%. This combination of downstream gains and upstream declines is uncommon in recent years and may indicate a phase of supply-demand mismatch.
Divergence Behind the Data
Looking at the gainers, the nylon chain stands out. Nylon POY was quoted at 14,875 CNY/ton, up 23.44% year-on-year; nylon FDY at 17,275 CNY/ton, up 15.94%; nylon DTY at 17,000 CNY/ton, up 18.72%. The similar increases suggest solid demand from downstream weaving. Notably, caprolactam was not in the monitored basket, but the drop in acrylonitrile indicates that cost support for chemical fiber raw materials is not strong overall. Nylon's rise is more likely due to its own tight supply-demand balance rather than cost push.
Meanwhile, viscose staple fiber rose 0.97% to 14,540 CNY/ton, and spun rayon yarn climbed 0.96% to 18,375 CNY/ton, indicating a moderate catch-up in the viscose chain. Raw silk gained 0.85% but remains 8.67% lower year-on-year, suggesting weak downstream consumption in silk. Cotton yarn 21S and 32S were flat, as were polyester yarn, spandex, and polyester filament series, indicating a wait-and-see stance in cotton and polyester sectors.
Why Are Upstream Prices Softening?
Among the decliners, acrylonitrile led with -0.87% to 11,333 CNY/ton, though still up 41.37% year-on-year. PTA slipped 0.61% to 6,562 CNY/ton, up 38.43% year-on-year. Cotton fell 0.42% to 18,180 CNY/ton. The PTA drop is particularly notable—as a hub in the polyester chain, its weakening suggests that polyester mills are reducing raw material purchases under inventory pressure. Polyester staple fiber also dipped 0.24%, confirming that downstream polyester demand is not keeping pace.
Acrylonitrile's decline contrasts with nylon's rise. Although acrylonitrile is a raw material for acrylic fiber rather than nylon, its fall still reflects a bearish sentiment in the broader chemical raw material market. The slight decline in cotton may be driven by expectations of new crop supply, with the market pricing in upcoming supply pressure.
Transmission to Procurement and Foreign Trade
This pattern of strong nylon and weak PTA implies divergent cost pressures for downstream buyers. Nylon fabric purchasers need to guard against further price increases, while buyers of polyester and cotton products may gain short-term bargaining power. For exporters, quotes for nylon-based products may need upward revision, but currency fluctuations must be hedged; for orders involving polyester or cotton, firms can leverage the stable raw material period to lock in longer-term contracts.
Looking further, price divergence often signals shifts in end-demand. Nylon's strength may attract new capacity, while PTA's weakness could force polyester plants to schedule maintenance or cut runs. Textile companies should closely monitor upcoming inventory data to adjust production plans.