In September 2025, the raw material support for nylon filament was insufficient, and the supply and demand performance was bearish. Nylon factory shipments continued to show no improvement, and inventory levels were high. Both supply and demand sides lacked support for nylon filament prices, and nylon filament continued to operate weakly, with prices at the lowest point of the year.
On the one hand, the continuous decline in raw material prices lacks support for the cost of nylon filament; On the other hand, the contradiction between supply and demand is prominent. Although some orders were placed within the month, the quantity was relatively low. Therefore, downstream links are mainly focused on digesting inventory in the face of high inventory. The enthusiasm for upstream raw material procurement is insufficient, and the demand transmission from bottom to top is not smooth, resulting in continuous light shipments from nylon filament manufacturers and increasing inventory pressure. Overall, the peak season is not prosperous, and the nylon filament market is weak. However, in the case of sustained poor profits, nylon factories have a certain mentality of reducing losses. Therefore, the mainstream transaction prices in the nylon filament market are mainly low and stable.
According to the Commodity Market Analysis System of Shengyi Society, in September 2025, the price of nylon filament fell weakly, reaching a low point of the year. As of September 29, 2025, DTY (premium product) of nylon filament in Jiangsu region; 70D/24F) quoted 13880 yuan/ton, a decrease of 440 yuan/ton compared to the same period in August, with a monthly decrease of 3.07%; Nylon POY (premium product; 86D/24F) quoted 11575 yuan/ton, a decrease of 475 yuan/ton compared to the same period in August, with a monthly decrease of 3.94%; The price of nylon FDY (premium product: 40D/12F) is reported at 14500 yuan/ton, a decrease of 400 yuan/ton or 2.68% compared to the same period in August.
In September, the cost side price of nylon PA6 fluctuated downward, and the supply-demand contradiction was prominent. Therefore, the market price of PA6 high-speed spinning continued to decline, which had a bearish impact on the price of nylon filament. As of September 29, 2025, the benchmark price of caprolactam in Shengyi Society was 8693 yuan/ton, with a weak price decline of 2.9% per month. During the month, the market price of high-speed spun nylon PA6 chips fell weakly, with a monthly decline of 1.29%. Cost side support is mainly weak.
Prominent supply-demand contradiction, bearish prices
Within the month, there has been no improvement in nylon factory shipments, with high inventory levels and a lack of support for nylon filament prices from both supply and demand sides. Specifically, downstream orders are relatively low and inventory is high, so there is a lack of speculative demand for nylon filament to maintain rigid demand. The inventory level of nylon manufacturers continues to increase, and some manufacturers have reduced production operations, but the relief effect on inventory pressure is limited. Many operators adopt a cautious and wait-and-see attitude.
Future forecast
Cost aspect: In terms of caprolactam, the expectation for pure benzene is weak, and slice manufacturers have low enthusiasm for purchasing caprolactam. It is expected that the caprolactam market will remain weak and mainly consolidate at a low level in the short term; In terms of nylon PA6 chips, cost support is limited, and the supply level of PA6 chips in the market may continue to improve. Downstream market demand is weak, and it is expected that the market price of nylon PA6 chips will be mainly weakly adjusted.
Supply and demand: Although September is the traditional peak season, the difference between peak and off peak seasons is no longer clear in recent years, and the trading atmosphere continues to be weak. Therefore, it is expected that the demand for nylon filament market will remain weak next month. However, under the current inventory pressure, some nylon filament manufacturers may have the possibility of reducing their production capacity, while the industry continues to release new production capacity, resulting in overall supply pressure remaining relatively high.
Overall, the upstream raw material caprolactam spot market and nylon PA6 chip market will continue to operate weakly, with a lack of cost support, high supply pressure, and difficulty in improving downstream market demand. Follow up on demand will be the main focus, and the supply-demand contradiction will be prominent. Good news will not appear, and the trend of low-level stability will continue. Business analysts predict that the short-term nylon filament market trend will continue to be low-level stability, with weak price consolidation as the main trend.
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