Cost pressure is cascading down the nylon supply chain. During the week from August 31 to September 6, domestic caprolactam prices rose to RMB 13,450-13,550/ton, while semi-dull nylon chips climbed about RMB 400/ton week-on-week to RMB 13,900-14,000/ton. The larger increase in chips relative to monomer indicates squeezed polymerization margins, with costs now pressing on filament producers.
Market Background
The immediate driver is supply tightening from upstream benzene and caprolactam plant maintenance. However, filament prices rose without a corresponding volume pickup, signaling that end-demand has not truly recovered. Shengze and Jiaxing, as major nylon filament hubs, often lead national trends; this price-volume divergence warrants close attention across the chain.
Demand divergence is stark. 30D/1F bright trilobal filaments saw higher volumes, driven by silk-like fabric orders. 160D air-textured yarn traded moderately for casual outerwear. Regular 70D/24F nylon 6 FDY slowed, with prices up to RMB 15,300-15,400/ton but thin trading, reflecting sluggish standard nylon taffeta. In contrast, 40D/24F full-dull FDY gained demand for high-density water-jet dull nylon taffeta, with periodic consumption increases. 70D/24F full-dull performed averagely at RMB 16,100-16,300/ton, used in water-jet full-dull polyester taffeta. 20D/1F and 30D/1F semi-dull filaments were sluggish but stable. Nylon 66 DTY remained largely stagnant due to narrow applications.
Industry Impact
This structural divergence reflects changing fabric order logic. Standard flat nylon taffeta suffers from overcapacity and homogenization, giving buyers leverage to suppress prices, preventing upstream hikes from passing through. Differentiated products like dull and trilobal yarns, with more concentrated supply, enjoy better price acceptance. Large producers in Shengze and Jiaxing report slight order increases for nylon interwoven fabrics, but total demand this year is lower than last year, as apparel brands order cautiously, reducing filament consumption.
For weavers, rising raw material costs and stagnant greige fabric prices squeeze margins. Some mills are adjusting procurement, reducing regular-spec inventories and locking in forward orders for differentiated specs. This "small-lot, frequent-order" approach is becoming the primary hedge against cost volatility.
Looking ahead, tight caprolactam supply is unlikely to ease soon, and chip prices may rise further. Filament prices will likely continue upward on cost support, but the extent depends on downstream acceptance. If fabric orders remain weak, increases may stay upstream, further compressing spinner margins.