In the same morning session, the polyester chain and the cotton chain moved in opposite directions. At the morning close on September 10, China's textile raw material futures showed clear divergence. Bottle chip 2611 led gains at 2.07%, quoted at 8,074; staple fiber 2611 followed with a 2.06% rise to 8,234; and PTA 2701 added 1.59% to 6,244. Meanwhile, cotton 2701 fell 0.99% to 16,570, and cotton yarn 2611 slipped 0.44% to 22,725. A broad polyester rally alongside a lone cotton decline is not random intraday noise. It is a direct reflection of how cost pass-through and demand strength are playing out on the board.
Where the Divergence Comes From
Start with the polyester chain. Bottle chip, staple fiber and PTA all moved higher together, which suggests the driver sits on the raw material side rather than in any single product's supply-demand story. PTA is the core feedstock for polyester, and its price increase feeds through the chain from PTA to chip to staple fiber and bottle chip. For downstream spinning and weaving mills, this means the procurement cost of polyester staple fiber is being pushed up in the near term, and the earlier window for low-priced stocking is narrowing.
Now look at the cotton chain. Both cotton and cotton yarn closed lower, with yarn falling less than cotton, indicating that pressure comes mainly from the cotton side. Weakness in cotton usually points to one of two possibilities: expectations of a looser supply as new cotton arrives, or low purchasing willingness among spinners due to insufficient downstream orders. Cotton yarn followed cotton down but with a limited decline, reflecting spinners' reluctance to cut prices sharply when margins are thin. The tension between holding prices and destocking is building.
What really deserves attention is the temperature gap between the two chains. Polyester up, cotton down means polyester-focused mills and pure cotton-focused mills face completely opposite raw material environments at the same time. This misalignment directly affects order quotation strategy: polyester products need room for rising feedstock costs, while pure cotton products may see a bargaining window as costs loosen.
Industry Impact
For polyester industrial belts, rising feedstock prices are a double-edged sword. On one hand, stronger PTA and staple fiber push up the production cost of polyester yarn and polyester-cotton blended yarn, squeezing margins at mills that failed to lock in prices earlier. On the other hand, higher costs give yarn quotes a reason to rise, and if downstream acceptance holds, this could actually help repair processing margins. The key lies in whether end-user orders can absorb this round of cost increases.
For cotton textile belts, weaker cotton is a short-term positive for procurement costs, but it does not necessarily mean better profits. If the cotton decline stems from weak demand, spinners may buy cheaper cotton yet still face falling yarn prices and insufficient orders. The fact that cotton yarn fell less than cotton shows spinners are trying to defend processing fees, but how long this defense can last depends on actual order flows.
From a longer perspective, the divergence between polyester and cotton also hints at substitution dynamics in textile raw materials. When polyester costs rise and cotton costs fall, the blending ratio of polyester-cotton products may be revisited. Buyers who can flexibly adjust their material mix between the two chains will have a chance to gain the upper hand amid price volatility.