| 摘要 |
<p>The present invention relates to a polyketone spinning solution having an excellent heat and spinning stability, the invention includes: a metal salt aqueous solution; an organic solvent having a range of pH 3 to 6 and selected from a group comprising a boric acid, an acetic acid, and a formic acid; and a polyketone. Accordingly, viscosity increases by thermal decomposition in the process of preparing a spinning solution at a temperature higher than a room temperature or in the process of wet spinning, or polyketone modification such as gelling is suppressed and therefore, thermal and spinning stability are excellent. In addition, even if the melting temperature of the polyketone spinning solution and the radiation temperature are expanded in range, polyketone modification can be suppressed, and therefore, if wet spinning by using thereof, it is possible to provide a polyketone fiber having a low occurrence of hairness and showing excellent fatigue resistance and heat resistance.</p> |
