Drops forming in inkjet printing of flexible electronic circuits
Drops forming in inkjet printing of flexible electronic circuits
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DOI：
10.1108/cw-11-2016-0054
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发表时间：
2017-01
期刊：
影响因子：
0.9
通讯作者：
G. Tomaszewski;J. Potencki
中科院分区：
文献类型：
--
作者：
G. Tomaszewski;J. Potencki
目的研究喷墨打印过程中压电工业喷头内液滴的形成。介绍了压电打印头形成纳米颗粒墨滴的过程，以及不同墨滴参数值的问题对打印图案缺陷和质量的影响。设计/方法/方法一个带有128个喷嘴的压电打印头被激活，以一种可控的方式运行，并在printview系统中观察和分析了从喷嘴中喷射出的液滴。分析和讨论了喷墨参数的变化对印刷质量和图案缺陷的影响。所获得的结果允许识别技术问题的根源，以获得具有所需性能的可重复性能下降，并指出选择适当的单独选择策略来控制每个单独应用的打印，以获得高质量和无缺陷的图案。由于所选择的研究方法（任意选择打印头类型和墨水制造商），本研究可能具有有限的普遍性。作者鼓励研究其他种类的压电头或其他导电油墨。实际意义本研究为用户提供了提高喷墨打印质量的实际应用。原创性/价值本研究展示了对喷墨打印过程中液滴形成问题的原始实证研究成果，最后指出了推广该技术必须解决的问题。
Purpose This paper aims to study drop formation in piezoelectric industrial printheads during the inkjet printing processes. It presents how the piezoelectric printhead forms drops of nanoparticle ink and how the problems with different values of drop parameters may influence the printed pattern’ defects and quality. Design/methodology/approach A piezoelectric printhead with 128 nozzles was activated to operate in a controlled manner, and the droplets ejected from the nozzles were observed during falling and analysed in the printview system. The effect of varying the values of drop parameters on print quality and pattern defects has been analysed and discussed. Findings The obtained results allow the identification of the sources of the technological problems in obtaining repeatable performance drops with the desired properties, and indicate the importance of choosing the appropriate individually chosen strategy of controlling the printing for each individual application to get good-quality and free-from-defects patterns. Research limitations/implications Because of the chosen research method (arbitrary selected printhead type and ink manufacturer), this study could have limited universality. Authors encourage the study of other kinds of piezoelectric heads or other conductive inks. Practical implications This study includes practically useful applications for users to improve the inkjet print quality. Originality/value This study presents results of original empirical research works on problems of the drops forming in the inkjet printing process, and finally, it identifies problems that must be resolved to disseminate this technology.