It is an object of the present invention to provide a
spinning solution for industrial production of pure
chitosan fiber and the method for fabricating the same. The method comprises the steps of: step (a): screening a flake
chitosan raw material and removing impurities; step (b): putting in a dissolving kettle the screened flake
chitosan raw material with a weight which is 3%-8% of the total weight of the
spinning solution, sealing the dissolving kettle, and evacuating into vacuum; step (c): adding 0.9%-6%
acetic acid solution, and soaking at the
room temperature for 40-60 minutes; step (d): uniformly stirring at a rate of 26-60 rpm for 7.5-19 hours under a pressure of ≦5000 pa in the dissolving kettle, standing for 1-3 hours, and obtaining a
spinning solution. By using this method, it is possible to not only maintain the original
state structure of the molecular chain of chitosan, but also fast and uniformly dissolve flake chitosan and the spinning solution fabricated by this method in unit time, so as to meet the requirements in the industrial
continuous production.