A survey of soybean protein fiber research at home and abroad

Introduction: from the end of the 19th century and the beginning of the 20th century, foreign countries began to study the regenerated protein fiber Italian scientists in 1935, British ICI company in 1938, and corn product refining company in 1939 discussed the extraction of protein from milk, peanut protein, corn and soybean meal respectively, and then spinning In the early 1940s, casein fiber was developed in the United States and Britain; in 1945, soybean protein fiber was studied in the United States and Britain; in 1948, General Motors Corporation of the United States extracted soybean protein fiber from soybean meal, but most of the research was interrupted because of poor fiber performance and unable to carry out textile processing In recent years, the milk protein fiber developed by Toyo textile company of Japan has realized industrial production Because only two kilograms of protein can be extracted from 100 kilograms of milk, the manufacturing cost is too high, and the heat resistance of the fiber is poor When the temperature is over 120 ℃, it is easy to turn yellow and the strength is reduced, so it can not be widely used up to now In China, the soybean protein fiber manufacturing technology can extract 40 kg plant protein from 100 kg soybean cake, which has a large cost competitive advantage and can be widely used In the 1950s and 1970s, our country has carried out preliminary exploration on regenerated protein fiber, but it has not been successful In the 1990s, Sichuan Province has developed the regenerated protein fiber of silkworm chrysalis Although the fiber has realized small batch production, the protein content is relatively low, and there are many problems in weaving and printing and dyeing processing, which seriously affects the development and technical promotion of such products Donghua University and Jinshan Petrochemical Co., Ltd have studied the spinning of casein / propylene ester graft copolymer, but they still stay in the theoretical discussion, and no products have been found; Fudan University and Donghua University have studied the spinning of regenerated silk fibroin solution, and failed to realize industrial production In the early 1990s, Henan Puyang Huakang Biochemical Engineering Co., Ltd began to carry out in-depth and systematic research and development on soybean protein fiber, with a total investment of more than 70 million yuan The trial spinning was successful in March 2000, and the first industrial test was carried out internationally At present, the first industrial test production line has an annual production capacity of 1500 tons, the fiber fineness is 1.1 and 1.5 Dan, and the length of cut-off staple fiber is 38mm, 51mm and 76mm Compared with the regenerated protein fiber developed at home and abroad, this kind of fiber has higher strength and other excellent properties (author:) share to feed Weibo share to: