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Jiangyin Zhongjin Chemical Fiber Co., Ltd. (JZCF), a leading polyester fiber manufacturer in China, delivers premium soybean protein polyester staple fiber – a scientifically formulated blended fiber that combines modified soybean protein fiber and polyester staple fiber, engineered to resolve the performance limitations of single-component fibers. This versatile textile base material is fully compatible with ring spinning, open-end spinning and other mainstream processes, ideal for producing knitted and woven fabrics for intimate apparel, loungewear, bedding, T-shirts and skin-contact garments. It also serves as high-quality filling for quilt cores, pillow cores and cushions, balancing superior fluffiness and skin-friendly feel. The blend retains the natural softness, moisture absorption and breathability of soybean fiber, while inheriting the high strength, wrinkle resistance, abrasion resistance and shape retention of polyester staple fiber, delivering dual guarantees of comfort and durability for your end products.
Pain Point: Pure polyester fabrics have poor moisture absorption, persistent static issues and insufficient skin comfort, failing to meet the demands of skin-contact apparel, especially for sensitive skin groups.
Solution: Our soybean protein blended polyester fiber integrates natural soybean protein fiber, drastically improving the moisture-wicking and anti-static properties of pure polyester.
Verifiable Evidence: The fiber offers a moisture regain of 1.2%-1.8%, significantly outperforming pure polyester. It features a smooth, soft hand feel with zero skin irritation, making it suitable for intimate wear, children’s clothing and medical care fabrics.
Pain Point: Pure soybean protein fiber has weak abrasion resistance, is prone to pilling and deformation after washing, increasing after-sales costs for brands and maintenance burdens for end users.
Solution: High-strength polyester staple fiber in our blend offsets the core shortcomings of pure soybean fiber, enhancing dimensional stability and washing durability.
Verifiable Evidence: Fabrics made from this fiber maintain excellent shape and texture after repeated washes, with minimal shrinkage and pilling, lowering end-user maintenance costs and reducing product return rates for brands.
Pain Point: Textile and home textile brands need to balance premium performance with cost control, while meeting rising consumer demand for eco-friendly products.
Solution: Our scientific blending formula retains core comfort performance while optimizing raw material costs, with soybean fiber sourced from renewable soybean meal (oil extraction by-product).
Verifiable Evidence: We support customizable blend ratios to fit diverse pricing strategies and market positioning, from mid-to-high end to mass consumption. Our sustainable fiber formula helps brands build a green image and attract environmentally conscious consumers.
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Item | Parameter Details |
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Standard Blend Ratios | 20%/30%/50% soybean protein fiber + 50%/70%/80% polyester (fully customizable) |
Fiber Length | 38mm / 51mm / 65mm (conventional cotton-like type) |
Linear Density | 1.5D ~ 3.0D, compatible with mainstream spinning equipment |
Moisture Regain | 1.2% ~ 1.8%, significantly superior to pure polyester |
Color | Raw white / brightened white / customizable dyeable colors |
Packaging | 345kg moisture-proof inner bag + outer woven bag |
We enforce a strict full-process quality management system, with all batches of soybean protein polyester staple fiber undergoing third-party testing before delivery to ensure compliance with national and international industry standards. Our products hold globally recognized certifications, including STANDARD 100 by OEKO-TEX®, ISO 9001:2015, and GRS (Global Recycled Standard) for our recycled fiber series. We provide complete quality inspection reports and product specifications for every order, and support OEM/ODM projects with full compliance certification assistance for global markets.
As a fully integrated polyester fiber manufacturer founded in 2015, we have an annual production capacity of 50,000 tons, ensuring stable bulk supply and on-time order fulfillment. Our production base is located in Jiangyin, Jiangsu, only 120km from Shanghai Port, enabling convenient logistics for global export. With over 10 years of fiber industry expertise, we offer comprehensive technical support for spinning and weaving processes, and support sample testing and full customization of fiber specifications, blend ratios and colors to meet your unique production needs.
Yes, we support full customization of blend ratios, including 20%, 30%, 50% soybean protein fiber and tailored proportions, to match your fabric performance and cost requirements.
Our products are certified by STANDARD 100 by OEKO-TEX®, ISO 9001:2015, and our recycled fiber series has GRS certification, meeting compliance requirements of major global markets.
Yes, our professional technical team offers targeted solutions for spinning, weaving and dyeing process issues, helping you optimize production efficiency and product quality.
