| 摘要 |
A manufacturing method of polyketone fiber is provided to offer superior intensity by decreasing generation of a deterioration material through a bubble-removing process of materials at high temperature in a short time. A manufacturing method of polyketone fiber comprises the following steps of: producing a polyketone solution by dissolving polymetone containing a ketone unit of 90 mole % or greater in a resorcinol aqueous solution; performing a bubble-removing process in the polyketone solution; extruding the polyketone solution through a spinning nozzle; gaining multifilament through a coagulation process; and performing a washing(S3), a drying(S4), and an ointment(S6) processes with the multifilament. The content of the polyketone is 5 - 30 weight% about the resorcinol content. The bubble-removing process is performed under pressure of -650mmHg ~ -600mmHg with a thin film evaporation mode. |
