Acrylic fiber for artificial hair, method for producing same, and head decoration article containing same

A method for producing modacrylic fibers for artificial hair, the method comprising:

• preparing a spinning solution by dissolving a modacrylic polymer in an organic solvent;
• and
• wet spinning the spinning solution,
• wherein the modacrylic polymer comprises 29.5 to 79.5% by mass of acrylonitrile, 20 to 70% by mass of vinyl chloride and/or vinylidene chloride, and 0.5 to 5% by mass of a sulfonic acid group-containing vinyl monomer, with respect to a total mass of the modacrylic polymer,
• wherein the organic solvent is dimethyl sulfoxide, and
• wherein the wet spinning comprises at least a coagulation process, a water washing process, and a drying process, and
• wherein a condensed phosphate is applied to the modacrylic fibers after the water washing process and before the drying process so as to obtain the modacrylic fibers comprising 0.05 to 0.57% by mass of the condensed phosphate.

A hair ornament product comprising modacrylic fibers for artificial hair, the modacrylic fibers comprising:

• a modacrylic polymer;
• and
• a condensed phosphate,
• wherein the modacrylic polymer comprises 29.5 to 79.5% by mass of acrylonitrile, 20 to 70% by mass of vinyl chloride and/or vinylidene chloride, and 0.5 to 5% by mass of a sulfonic acid group-containing vinyl monomer, with respect to a total mass of the modacrylic polymer, and
• wherein a content of the condensed phosphate in the modacrylic fibers is 0.05 to 0.57% by mass.