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Soybean protein fiber belongs to the regenerated vegetable protein fiber. It is extracted from the soy bean meal which has been over-oiled. It uses bioengineering techniques to extract the globulin from soybean meal. Through the addition of functional additives, it changes the spatial structure of the protein and makes it contain cyano groups. Grafting, copolymerization or blending of polymers such as hydroxy and other polymers to change the spatial structure of the protein to produce a certain concentration of the protein spinning solution; after aging, the spinning solution is sprayed by a metering pump Into the coagulation bath solidification, to obtain semi-finished products of soybean protein fiber, and then by drafting, acetalization cross-linked treatment, washing, oiling, drying, crimping set, cut to obtain a variety of specifications of the length of textile fiber. Its main ingredients are soy protein and high molecular weight PVA/PAN. Obviously, the fiber's soy protein content is not too high, so the fiber obtained should be a soybean protein content is not high, so the resulting fiber should be modified soybean protein PVA/PAN fiber, the application process commonly known as " Soybean protein fiber."
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Preparation of soybean protein fiber
China began to spend more than 60 million yuan in the 1990s from Liyang Huakang Chemical and Biological Engineering Union Group Co., Ltd. Li Guanqi of Henan Province to develop and research soybean protein fiber, and took the lead in gaining success. In March 2000, it was first realized in the world by Zhangping Huakang Health Products Co., Ltd. in Henan Province.