Patent ID: 8647090

Claim:
An injection nozzle for electrospinning, comprising: a first nozzle body having a source liquid feed passage for receiving a source liquid for fiber fed from an outside; a nozzle member provided to protrude downwards from a lower end of the first nozzle body and discharging downwards the source liquid for fiber fed through the source liquid feed passage; and a second nozzle body detachably mounted to the lower side of the first nozzle body, wherein the second nozzle body receives the nozzle member therein and is provided therein with an insert hole into which the nozzle member is inserted, with an injection hole being formed at a location below the insert hole so as to receive a lower part of the nozzle member therein, and with an air passage being formed in the second nozzle body so as to feed air to the injection hole, wherein the air passage includes: a first air passage formed in the first nozzle body; and a second air passage formed in the second nozzle body so as to communicate both with the first air passage and with the injection hole and to feed air to the injection hole, and the second air passage includes: a first passage horizontally and thoroughly formed between opposite sides of the second nozzle body so as to communicate with the insert hole; and a second passage vertically formed from an upper surface of the second nozzle body so as to communicate with the first passage.