Raw material price increases have been transmitting rapidly along the nylon chain for two consecutive weeks, but downstream order recovery has not fully kept pace. During the week of August 24-30, caprolactam market prices rose to 13,100-13,200 yuan per ton, a weekly increase of 500-600 yuan; nylon 6 chips also rose to 13,500-13,600 yuan. These upstream cost pressures directly pushed nylon filament prices higher, with some specifications seeing both price increases and volume expansion.
Raw Material Costs and Filament Price Linkage
The core driver is tight caprolactam supply. A weekly increase of 500-600 yuan is relatively high for the year, suggesting that plant maintenance or logistics disruptions are being amplified by the market. Nylon 6 chip increases were more moderate, indicating compressed margins at the polymerization stage, which will be passed further downstream.
Among specific products, 70D/24F nylon 6 FDY was the star performer, with market prices at 14,800-14,900 yuan per ton and rising sales, mainly for water-jet looms producing nylon taffeta, nylon-polyester blends, and taslan for domestic fabrics. These are typically used in autumn/winter outerwear and outdoor leisure apparel, aligning with seasonal stocking. In contrast, regular specs like 100D/36F and 140D/48F saw average demand, while 210D/36F, used for polyester-nylon oxford fabric, moved steadily.
Another notable point: 160D nylon 6 ATY, both full dull and semi-dull, saw price increases, correlating with order recovery for taslan and peach skin fabrics. Nylon monofilament trading was concentrated in 20D and 30D, but 30D/1F bright trilobal and round cross-section filaments were quiet, indicating limited demand for differentiated products.
Demand Signals and Price Ceiling
This price hike is not isolated. Recent foreign trade autumn/winter orders have increased slightly, and domestic sportswear fabric demand is showing signs of life, providing demand-side support. However, raw material prices show signs of peaking after consecutive increases, suggesting limited room for further filament price hikes.
For weaving mills, raw materials typically account for over 70% of costs. If increases in caprolactam and chips cannot be fully absorbed by grey fabric prices, margins will be squeezed. Water-jet loom operating rates are stable overall, but sustainability of new orders remains uncertain. If end brands are reluctant to accept higher prices for autumn/winter apparel, intermediate links will bear the cost pressure.
Historically, nylon filament prices lag caprolactam by one to two weeks, and current filament increases already reflect raw material gains. If raw materials stabilize, filament prices may enter a high-level consolidation phase; conversely, if caprolactam continues to rise, filament prices could follow. Downstream willingness to accept high-cost materials will be the key variable determining how far this rally can go.