| 摘要 |
A method and a device for accurate delivery, dripping and ejection in the form of flying droplets are provided. A liquid material delivering method wherein a liquid material is pressurized by a plunger sliding while closely contacting an inner wall surface of a liquid feed passageway establishing communication between a nozzle and a storage section to deliver the liquid material through the nozzle. The plunger is disposed in a space filled with the liquid material. A sliding surface of the plunger section sliding while closely contacting the inner wall surface of the liquid feed passageway divides the space into a nozzle-side liquid material part and a storage container-side liquid material part. Of divided two parts of the liquid material, the liquid material in the nozzle-side liquid material part is delivered by the plunger section advancing in the liquid feed passageway. A liquid material delivering device comprises a liquid material storage section for storing a liquid material, a nozzle section for delivering the liquid material, a liquid feed passageway for establishing communication between the storage section and the nozzle section, a plunger section having a seal portion sliding while closely contacting an inner surface of the liquid feed passageway, and plunger moving means for advancing and retracting the plunger section. The delivering device further comprises another liquid feed passageway 2 for establishing communication between a portion of the aforesaid liquid feed passageway near a nozzle-side distal end thereof and a portion of the aforesaid liquid feed passageway near the liquid material storage section or the liquid material storage section itself, and a liquid feed valve disposed at a distal end of the another liquid feed passageway 2 or midway the another liquid feed passageway 2.
|
