The invention of soy protein fiber technology is credited to Li Guanqi, a farmer-turned-entrepreneur from Huaxian County in Anyang, Henan Province. Inspired by an article in a U.S. magazine stating that "plant proteins can be spun into silk," he embarked on a challenging journey. Extracting soy protein and turning it into silk proved no easy feat. Starting in 1991, Li Guanqi conducted countless experiments—pure solution spinning, wet spinning, dry spinning, dry jet wet spinning—and invested tens of millions of dollars over more than a decade. When progress stalled, local banks stepped in, offering him several million dollars in loans. By 1998, his efforts finally paid off with a major breakthrough. After over 800 trials on small to medium-sized pilot lines, they achieved success. With the county food bureau’s assistance, they raised 60 million yuan to build the first pilot production line.
Turning soybean fiber into textile material required developing suitable spinning processes. Li Guanqi reached out to the State Textile Industry Bureau in Beijing. They inspected the production line and sought support from relevant national departments. Soybean fiber production was soon included in the 2001 national key high-tech industrialization projects. The China National Textile and Apparel Council led a collaborative effort involving key academic institutions, research institutes, and over 50 major textile enterprises to address critical spinning, weaving, and finishing technologies. This level of collaboration across industries is rare in China's textile history.
Since then, the focus has been on developing knitwear, shirt fabrics, woolen goods, and expanding soybean fiber applications to final products. Companies like Ordos, Sunshine, Wishful, Wuxi Cotton, and others successfully blended soybean fiber with various materials, creating yarns, fabrics, and garments with excellent performance and feel. The industrial potential is immense—China imports 1.3 million tons of chemical fiber annually and significant amounts of wool. Soybean fiber can help alleviate shortages in textile raw materials. With abundant domestic soybean resources (over 10 million tons produced annually), soybean meal scraps leftover from oil extraction serve as the raw material. Currently used mostly for animal feed and fertilizers, soybean fiber development enhances the value of soybean products, promotes resource integration, and supports agricultural restructuring. Extracted protein meal can still be repurposed as feed or fertilizer.
On December 4, 2002, the first large-scale industrial soybean protein fiber factory began operations. South Korean buyers initially ordered 100 tons but later agreed to purchase 3,500 tons. Italian merchants increased their orders 24-fold, selling globally. A Japanese firm even proposed full underwriting. European and American merchants took notice too. Today, China has four soybean fiber production bases with an annual capacity of 25,000 tons. In April of this year, Changshu River Tianxian Fibers Co., Ltd.’s 10,000-ton production line came online. Soybean fiber clothing is now available at retail counters. As soybean protein fiber moves toward commercialization, more people will experience its superior qualities.
We’ve developed a range of end products, including "Tian Rong" adult soybean fiber clothing, and in response to consumer demand in 2009, launched "Yuan Xiu" maternity and infant clothing. These products are celebrated for unmatched comfort and health benefits. Experts dub them “baby’s baby.†Media outlets like Phoenix TV and CCTV, along with government officials, have taken notice. For the 60th anniversary of the People’s Republic of China, soybean fiber apparel was chosen as a diplomatic gift and an international symbol of "Made in China."
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