Fiber Manufacturing Method And Fiber Manufacturing Device

Abstract: Provided are a fiber manufacturing method and a fiber manufacturing device that allow fiber with an exceptionally small fiber diameter to be obtained efficiently by stretching a fibrous polymer discharged from a discharge hole while twisting at a high speed the fibrous polymer in a state in which the fibrous polymer is easily deformable before solidification. In this fiber manufacturing method through the application of twisting force to a single strand of a discharged fibrous polymer in a plane perpendicular to the direction of discharge of the polymer in a direction of rotation centered on the fibrous polymer the fibrous polymer is made to rotate with the center of a cross section thereof as an axis stretching the fibrous polymer so that the discharge velocity V in millimeters per second of the polymer discharged from a nozzle and the rotational velocity W in rotations per second of the fibrous polymer satisfy W/V ??? 0.1.

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