| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a spinneret for producing nanofiber capable of making the ejection amount of raw material liquid to be ejected from a plurality of apertures nearly equal to each other so as to unify the diameter of fiber collected on a collector. <P>SOLUTION: A spinneret for producing nanofiber comprises a liquid supply casing 52, a bill part 53 for raw material liquid withdrawal with an aperture, and a plurality of apertures 54 for raw material liquid withdrawal. The liquid supply casing 52 is made of conductive material and has a space 54a for filling raw material liquid therein, and the bill part 53 at its tip. The bill part 53 has an arc outline if it is viewed from a collector, which is installed with a prescribed distance from the apertures 54 for raw material liquid withdrawal. The bill part 53 comprises the plurality of apertures 54 arranged in the arc outline of the bill part 53. A depth of individual aperture 54 for raw material liquid withdrawal is made shallower as it goes further from the center to both ends in the width direction of the bill part 53. <P>COPYRIGHT: (C)2013,JPO&INPIT |
