電界誘起インクジェット射出液滴の研究

抄録

Inkjet technology is attactting technlogy in wide field of engieering, such as print images, molding to a variety of objects. We have developed inkjet device that can ejects electrically-charged droplet by using thrust force of electrically-induced bubble. For the present study characteristics of electrically-charged droplet and the directivity of the ejection were investigated. The proposed bubble-induced inkjet device is composed of directional micro-bubble generator, opposite electrode and regent supply. When a pulse voltage is applied to the device, micro-bubble is generated and the thrust force is generated as growing the bubble. Finally, the thrust force can eject the droplet out of air-liquid interface. As a result, it succeeded in droplet ejection into air by the device and the droplet was considered to be charged. Moreover, it was confirmed that the coaxiallty structure of nozzle was considered to be important for the directional ejection of droplets.