Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Relationship between Ink Jetting Speed and Inkjet input Waveform Parameters

잉크젯 입력 파형의 파라미터와 토출 속도의 관계

  • Kwon, Kye-Si (Department of Mechanical Engineering, Soonchunhyang Univ.) ;
  • Myung, Jae-Hwan (Department of Mechanical Engineering, Soonchunhyang Univ.) ;
  • Um, Tai-Joon (Department of Mechanical Engineering, Soonchunhyang Univ.) ;
  • Joo, Young-Cheol (Department of Mechanical Engineering, Soonchunhyang Univ.) ;
  • Lee, Sang-Wook (Department of Mechanical Engineering, Soonchunhyang Univ.)
  • 권계시 (순천향대학교 기계공학과) ;
  • 명재환 (순천향대학교 기계공학과) ;
  • 엄태준 (순천향대학교 기계공학과) ;
  • 주영철 (순천향대학교 기계공학과) ;
  • 이상욱 (순천향대학교 기계공학과)
  • Published : 2009.09.01
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Abstract

Inkjet printing makes use of ink droplets to form required patterns on a substrate. In order for the inkjet technology to produce reliable patterning tools, the jetting performance needs be controlled precisely. For controlling ink jetting performance, input waveform should be properly designed. In the past, the research was focused on designing dwell time of the input waveform for controlling jetting speed. However, the jetting performance is also closely related to rising and falling time. In this study, the effect of the rising and falling time on droplet speed will be investigated by measuring the droplet speed. In this study, the power OP amp (PA98A) was used in order to drive piezo inkjet head by amplifying the waveform generated from arbitrary function generator. The experimental results show that change of rising and falling time in the waveform not only affect the droplet speed but also optimal dwell time.

Keywords

References

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