Sinopec Yizheng Chemical Fibre Company Limited (hereinafter referred to as "Yizheng Chemical Fibre") is a wholly owned subsidiary of Sinopec located in Yizheng, Jiangsu Province. As Sinopec's core polyester fiber manufacturing platform, the company has established a fully integrated industrial chain covering PTA, polyester chips, and polyester fibers, making it one of the world's leading manufacturers of polyester staple fiber (PSF).
Following the full commissioning of its 230,000-ton-per-year intelligent direct melt spinning polyester staple fiber project in 2023, the company's total polyester staple fiber production capacity reached 1.33 million tons annually. This output is equivalent to the annual production of more than 26 million mu (approximately 1.73 million hectares) of high-quality cotton fields. Yizheng Chemical Fibre operates 34 specialized production lines for polyester staple fiber and hollow fibers, offering nearly one hundred product specifications across virgin, recycled, and functional fiber categories. Its production capacity and diversified product portfolio rank among the world's leading producers.
Supported by Sinopec's national R&D platform, the company operates advanced polymerization and spinning laboratories and has led the formulation of multiple industry standards for polyester staple fiber. Its products have obtained ISO 9001 Quality Management System, ISO 14001 Environmental Management System, Global Recycled Standard (GRS), and Green Fiber certifications. Yizheng Chemical Fibre's polyester staple fiber has also been designated as an inspection-exempt delivery brand by the Zhengzhou Commodity Exchange, while its hollow conjugated filling fiber has been recognized as an annual inspection-exempt raw material supplier for Luolai Lifestyle, one of China's leading home textile brands.
Polyester Staple Fiber (PSF) is manufactured by melting polyester chips, spinning the polymer into filaments, drawing the fibers, and cutting them into staple lengths.
Yizheng Chemical Fibre categorizes its polyester staple fiber products into seven major series according to downstream applications:
All products feature low defect rates, uniform crimp, stable dry heat shrinkage, and excellent spinning performance.
The standard product range covers fineness from 0.9 to 3.33 dtex and fiber lengths from 38 mm to 100 mm, available in bright, semi-dull, and full-dull grades.
High-tenacity, low-elongation cotton-type staple fiber is suitable for high-count yarns, apparel fabrics, and wool-like textiles, offering excellent yarn evenness and vibrant dyeing performance.
Medium-length wool-type staple fiber can be spun alone or blended with wool for woolen fabrics and overcoat materials.
Bright polyester staple fiber for sewing thread accounts for more than 52% of China's domestic market, successfully replacing imported products and supporting China's sewing thread export industry. The company has become one of the world's major suppliers of raw materials for sewing thread manufacturing.
Hollow polyester staple fiber is one of Yizheng Chemical Fibre's flagship products for home textile filling applications.
Featuring permanent three-dimensional crimp, excellent resilience, lightweight structure, thermal insulation, mildew resistance, and antibacterial properties, the product is available in various differentiated specifications, including single-hole, multi-hole, down-like, and silk-like filling fibers.
Typical applications include:
High-end hollow fiber products achieve a differentiation rate of approximately 20%. They are supplied to leading home textile manufacturers such as Luolai Lifestyle, with long-term inspection-exempt supplier status. Product sales have consistently maintained a 100% sales-to-production ratio.
Yizheng Chemical Fibre holds more than 70% of China's high-end spunlace polyester staple fiber market.
Manufactured on fully enclosed intelligent clean production lines, the products effectively minimize fiber contamination, gel particles, and foreign matter, making them specifically designed for spunlace nonwoven production.
Applications include:
Since 2018, the company has continuously been recognized as an Outstanding Supplier by China's nonwoven industry, becoming one of the benchmark suppliers of medical-grade polyester staple fiber.
Produced using Sinopec's proprietary direct melt spinning technology, this product achieves zero VOC emissions during manufacturing and offers outstanding environmental performance.
Its low-temperature bonding capability eliminates the need for additional adhesives, making it ideal for:
The product significantly reduces downstream processing energy consumption and environmental emissions.
Yizheng Chemical Fibre obtained Global Recycled Standard (GRS) certification in 2021 and Green Fiber Certification in 2022, making it one of China's earliest recycled polyester staple fiber products with dual environmental certifications.
Each ton of recycled polyester staple fiber consumes approximately 40,000 to 50,000 discarded PET beverage bottles, significantly reducing virgin raw material consumption and carbon emissions.
The recycled product portfolio includes:
Annual production and sales exceeded 10,000 tons in 2025, with monthly orders increasing from approximately 120 tons during the initial launch stage to more than 1,000 tons. The products are primarily exported for high-end recycled yarns and sustainable workwear fabrics and are also used in the company's "Yiran®" recycled antibacterial textile series.
This innovative industrial product was independently developed by Yizheng Chemical Fibre.
Through molecular modification technology, the product significantly reduces oligomer content and is specially designed for low-pressure waterless dyeing processes.
Key advantages include:
The product provides an important raw material solution for the textile industry's low-carbon transformation and has successfully completed commercial-scale production validation with multiple leading textile manufacturers.
With in-house PTA and polyester chip production facilities, Yizheng Chemical Fibre adopts direct melt spinning technology that eliminates the traditional chip pelletizing process.
Compared with conventional chip spinning routes, this integrated production method reduces both energy and material consumption while improving product consistency.
The company also employs automated warehousing systems, online color monitoring, and real-time physical property inspection to ensure excellent batch stability, meeting stringent futures delivery standards and international export requirements.
The 230,000-ton intelligent polyester staple fiber project incorporates:
These technologies substantially reduce human error while enhancing large-scale production reliability.
Low-melting polyester staple fiber achieves zero VOC emissions during production.
Recycled polyester staple fiber has established a complete closed-loop recycling system covering waste plastic collection, recycling, and fiber production.
The new generation of direct melt spinning technology significantly reduces steam and electricity consumption compared with traditional manufacturing processes, supporting global carbon neutrality goals and sustainable textile procurement requirements.
Yizheng Chemical Fibre's research institute provides customized functional polyester staple fibers tailored to customer requirements, including:
These customized products serve a broad range of industries, including textiles, healthcare, automotive, construction materials, and filtration.
Yizheng Chemical Fibre's polyester staple fibers are widely used across six major downstream industries:
Its spunlace polyester staple fiber, bright sewing thread fiber, and hollow filling fiber consistently rank among the leading products in China's domestic market.
The company's products are supplied throughout China and exported in large volumes to Southeast Asia, Europe, North America, the Middle East, and other international markets.
Backed by Sinopec's stable supply chain, inspection-exempt futures delivery qualification, and comprehensive environmental certification system, Yizheng Chemical Fibre has become a trusted raw material supplier for leading textile, nonwoven, and home textile manufacturers worldwide.
As one of the world's largest polyester staple fiber production bases, Sinopec Yizheng Chemical Fibre Company Limited continues to advance the development of high-performance, functional, and sustainable polyester staple fibers.
From household textiles and apparel to medical protection products and recycled green textiles, the company's comprehensive polyester staple fiber portfolio supports the modernization, self-reliance, and sustainable development of China's polyester fiber industry while providing high-quality raw materials to customers around the world.
