| 摘要 |
This protein solution is a protein solution wherein a protein component including silk fibroin is dissolved in a solvent, and the solvent includes an inorganic salt and at least one polar solvent selected from dimethyl sulfoxide, N,N-dimethylformamide, N,N-dimethylacetamide, and N-methyl-2-pyrrolidone. This fiber production method uses the protein solution as a dope liquid, pushes same out from a cap into a coagulating solution in a desolvation tank, separates the solvent from the dope liquid, forms fiber and uses same as undrawn yarn, and obtains a protein fiber. As a result, a protein solution including a silk fibroin, and a production method for a protein fiber are provided that have good media solubility, have a high boiling point and are capable of high-temperature melting, are highly safe, and have low solvent costs.
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