Nylon Leads, PTA Under Pressure: Diverging Signals in Textile Raw Material Prices in Mid-July

The mid-July textile raw material price data reveals a market splitting along structural lines. Nylon POY rose 0.74% daily, nylon DTY gained 0.25%, and polyester staple fiber edged up 0.12% – while PTA bucked the trend, falling 0.51% as the only decliner of the day. Behind this set of contrasting signals lies a deep mismatch between cost pass-through and demand absorption.

Nylon Chain: Cost-Driven Rally vs. Inventory Dynamics

The rise in nylon POY and DTY is not an isolated event. Year-on-year, nylon POY prices are 11.48% higher, and nylon DTY is up 9.27%. This rally is primarily supported by upstream caprolactam cost pressure, alongside controlled operating rates and reduced social inventories among nylon producers, providing short-term price elasticity.

However, it is noteworthy that nylon FDY prices did not follow suit, remaining at 16,250 yuan/ton, up only 7.97% year-on-year. This suggests that downstream weaving mills are showing divergent willingness to accept higher nylon fabric prices – POY and DTY, as intermediates, are more susceptible to cost pushes, while terminal FDY, which directly faces weaving plants, faces significantly greater resistance to price hikes.

PTA Decline: A Warning Signal for the Polyester Chain

PTA's 0.51% daily drop to 6,012.25 yuan/ton may seem modest, but against a backdrop of a still 26.96% year-on-year increase, this reversal warrants attention. As the core raw material for the polyester chain, a softening in PTA prices typically suggests one of two possibilities: ample upstream PX supply, or weakening downstream polyester demand.

Given that polyester staple fiber rose only 0.12% and all three major polyester filament varieties – POY, DTY, and FDY – remained flat, the second scenario appears more likely. Although these filament grades show year-on-year gains of 17.75%, 14.21%, and 18.28% respectively, their prices have been plateauing for several consecutive days, indicating that downstream textile mills lack replenishment appetite and are adopting a wait-and-see stance toward high-priced raw materials.

Spandex and Viscose: High Growth with Underlying Risks

Spandex prices held at 29,666.67 yuan/ton, with a year-on-year surge of 22.34%, second only to PTA among all monitored varieties. The spandex boom is driven by sustained demand from activewear and stretch fabrics, but a 22% year-on-year increase is approaching historically high levels. Once terminal orders fluctuate, the downward adjustment pressure on spandex prices will amplify rapidly.

Viscose staple fiber and cotton yarn prices remained stable, with year-on-year gains ranging from 6% to 10%. Cotton rose 15.97% year-on-year to 17,733.67 yuan/ton, but cotton yarn 21S and 32S only increased 6.71% and 6.23% respectively, indicating limited pass-through capacity at the spinning stage. Real profit compression is occurring in the intermediate processing segment.

Raw Silk: A Warning from the Only Year-on-Year Decliner

Raw silk prices at 425,700 yuan/ton, down 10.21% year-on-year, are the only monitored variety in negative territory. This directly reflects supply-demand imbalance in the silk chain: on the one hand, sericulture acreage in Guangxi, Sichuan, and other regions has expanded in recent years, boosting supply; on the other hand, export demand for silk garments has slowed due to overseas consumption downgrades. The persistent weakness of raw silk may force the industry to accelerate capacity reduction or shift toward high-value-added product development.

Practical Implications for Buyers and Mills

The current price divergence means sourcing strategies can no longer be one-size-fits-all.

For Buyers - Nylon products may still have short-term upside, but it is advisable to control purchase volumes and wait for signs of price easing in FDY before making large-scale replenishments. - For PTA and polyester products, a wait-and-see approach is recommended. If PTA continues to decline, polyester filament prices are likely to follow suit within one to two weeks, presenting a good price-locking window. - Spandex prices are at elevated levels. Consider signing short-term floating price agreements with suppliers to avoid locking in long-term high-price contracts.

For Mills - Raw material inventory management needs to be more granular: increase safety stock for rising items like nylon POY, but maintain low inventory and fast turnover for PTA and polyester varieties. - Take advantage of the ongoing decline in raw silk prices. Silk fabric producers can opportunistically increase raw material reserves, but must simultaneously assess the sustainability of overseas orders. - Profit margins in cotton spinning are under pressure. Adjust product mix (e.g., increase blended ratios) to hedge against raw material cost volatility.