Acrylonitrile Jumps Nearly 2% in a Day as Textile Raw Material Market Diverges

Acrylonitrile surging 1.88% in a single day, with a year-on-year gain exceeding 30%, says more about the structural tensions in today's textile raw material market than any aggregate figure could. According to industry price monitoring on September 14, 2026, the textile commodity sector posted an average daily change of just 0.12% — seemingly calm on the surface. But beneath that headline number, divergence is widening.

The Logic Behind Divergence

Four categories rose on the day: acrylonitrile led with a 1.88% gain, raw silk and polyester staple fiber edged up 0.42% and 0.27% respectively, and PTA added 0.13%. Only one product declined — cotton, down 0.66%. Notably, cotton yarn 21S and 32S, polyester yarn, viscose staple fiber, spandex, rayon yarn, and the POY, DTY and FDY variants of both polyester and nylon all held flat.

This pattern — a few movers, most standing still — signals that the market has not formed a unified directional expectation. Acrylonitrile's jump stems more from a temporary tightening on the supply side than from any substantive recovery in downstream demand. On a year-on-year basis, acrylonitrile is up 32.65%, polyester staple fiber up 32.78%, and PTA up 50.54%. Cost pressure from the raw material side has been building for a considerable time.

Cotton was the sole decliner, falling 0.66% to 17,954.33 yuan per tonne, yet still up 17.70% year-on-year. This suggests the pullback is a high-level correction rather than a trend reversal. For spinning mills and fabric makers heavily reliant on cotton, short-term procurement costs have eased slightly, but the annual comparison shows raw material costs remain elevated.

Asymmetric Transmission Along the Supply Chain

Year-on-year gains across the polyester chain generally range from 26% to 32%, while nylon series show increases of 19% to 29%. This means that even when daily prices hold flat, the annual cost escalation for chemical fiber raw materials is already substantial. Whether downstream weaving and garment operations can absorb these costs depends on their bargaining power in end markets.

Feedback from industrial clusters in Keqiao and Shengze — both major chemical fiber fabric hubs — indicates that mills have significantly shortened their raw material stocking cycles this year, favoring small-batch, high-frequency purchasing to hedge against price volatility. This behavioral shift itself amplifies short-term price elasticity in the spot market.

Raw silk rose 0.42% to 435,000 yuan per tonne, but remains down 6.88% year-on-year — one of the few textile categories in negative territory. The weakness in the silk chain stands in sharp contrast to the strength in chemical fibers, reflecting markedly different recovery trajectories across end-consumer markets.

Practical Implications for Procurement and Production

The core contradiction is this: broad year-on-year gains in raw materials are a fact, yet end demand has not shown commensurate improvement. For buyers, the risk of waiting for a significant price correction is rising. For mills, the urgency of locking in forward raw material costs is greater than at the start of the year.

Spandex held steady at 29,000 yuan per tonne, up 19.59% year-on-year; viscose staple fiber remained flat at 14,520 yuan, up 10.67%. The sideways trading in these two categories suggests buyers and sellers have reached a temporary equilibrium at current price levels — but any new disruption upstream could break that balance at any moment.

For Buyers - For categories like acrylonitrile and PTA, where year-on-year gains already exceed 30%, evaluate forward pricing or staggered positions to avoid concentrated purchases at peak levels. - Cotton's short-term pullback allows moderate restocking, but avoid betting on a sustained decline — the 17.70% annual gain indicates underlying support remains. - For flat-lined categories such as spandex and viscose staple fiber, maintain normal procurement rhythms while closely monitoring upstream raw material movements.

For Mills - With annual cost escalation in chemical fibers now evident, ensure quotations fully account for year-on-year raw material gains to protect margins. - Shorten stocking cycles and improve turnover efficiency to cope with heightened short-term price volatility. - For silk orders, use the window created by falling raw silk prices to renegotiate with suppliers.

For Exporters - Broad year-on-year raw material gains increase pressure to adjust export quotations; provide raw material price data to overseas clients as justification for price revisions. - Monitor diverging year-on-year trends across categories and prioritize orders in products with relatively controllable costs. - For orders with long lead times, include raw material price fluctuation clauses in contracts to reduce exposure.