| abstract |
Disclosed is a method for producing a polyurethane nanofiber nonwoven fabric using an electrospinning method, in which a polyurethane nanofiber nonwoven fabric having a small difference in tensile strength over time and excellent in elastic recovery can be obtained. An electrostatic spinning apparatus includes a nozzle, a collector that accumulates polyurethane resin ejected from the nozzle, and voltage applying means that can apply a voltage between the nozzle and the collector. For example, the polyurethane resin solution 11 is ejected while the nozzle 10 is linearly moved in the vertical direction A and / or the horizontal direction B, and the collector 12 is rotated about the central axis 12B of the surface as the rotation axis. Then, the polyurethane resin ejected from the nozzle 10 is accumulated to produce a polyurethane nanofiber nonwoven fabric. [Selection] Figure 1 |