| 摘要 |
PROBLEM TO BE SOLVED: To prevent defective emission from occurring due to the adhesion of a liquid drop to a nozzle emitting orifice by excluding a liquid drop ready to be held along a liquid repelling treatment layer arranged to the periphery of the emitting orifice. SOLUTION: A liquid drop emitting device is equipped with a pressurizing means for emitting a liquid such as a raw material or fuel, a nozzle 2 connected to the lower part of a pressurizing chamber 1 to emit the liquid to a treatment part of the raw material or fuel emitting device, a liquid repelling treatment layer 11 (11a, 11b) arranged to the periphery of the emitting orifice of the nozzle 2 and an inflow port 10 for supplying the liquid to the pressurizing chamber 1. The liquid repelling treatment layer 11 (11a, 11b) is constituted of the liquid repelling treatment layer 11a comprising fluoroplastic formed to the whole of the bottom surface of the pressurizing chamber 1 and the liquid repelling treatment groove 11b carved in the periphery of the emitting orifice of the nozzle 2.
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