| 摘要 |
The present invention relates to a method for producing an acrylic fiber, wherein a spinning raw material solution obtained by dissolving an acrylic copolymer in an organic solvent is subjected to wet spinning. The acrylic copolymer contains 20-85% by mass of acrylonitrile, 14.5-79.5% by mass of vinyl chloride and 0.5-10% by mass of a sulfonic acid group-containing monomer relative to the total mass of the acrylic copolymer; the organic solvent is dimethyl sulfoxide; and the spinning raw material solution contains water and a condensed phosphate. |
