摘要
喷墨印刷是一种可直接出版的印刷方式。喷墨印刷之所以能够实现,依靠的是油墨流体稳定、精准喷墨的印刷性能。本文通过观察墨滴形成的动态过程,研究喷墨印刷适性与油墨流变性能之间的内在联系。油墨的印刷适性是依照Ohnesorge(Oh)值的倒数Z来进行度量的,而Oh值与油墨的黏度、表面张力及浓度有关。考虑到墨滴的成形、定位的精准性及允许的最高喷墨频率,将Z值的可印刷范围重新定义在4～14之间。
Ink-jet printing is a method for directly patterning and fabricating patterns without the need for masks. To achieve this, the fluids used as inks must have the capability of being stably and accurately printed by ink-jetting. We have investigated the inter-relationship between ink-jet printability and physical fluid properties by monitoring droplet formation dynamics. The printability of the fluids was determined using the inverse （Z） of the Ohnesorge number （Oh） which relates to the viscosity, surface tension, and density of the fluid. We have experimentally defined the printable range as 4 ≤Z≤14 by considering characteristics such as single droplet formability, positional accuracy, and maximum allowable jetting frequency.
出处
《中国印刷与包装研究》
CAS
2009年第4期72-74,共3页
China Printing Materials Market
