Printing with Satellite Droplets.
Printing with Satellite Droplets.
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DOI：
10.1002/smll.201802583
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发表时间：
2018-09
期刊：
影响因子：
13.3
通讯作者：
Yanzhen Zhang;Dege Li;Yonghong Liu;G. Wittstock
中科院分区：
文献类型：
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作者：
Yanzhen Zhang;Dege Li;Yonghong Liu;G. Wittstock
尽管它们有特定的方法，但所有当前的非接触式印刷技术（例如喷墨印刷（IJP））都涉及在墨滴从主体油墨储存器分离期间液体弯月面的破裂。通常，液体弯月面的破裂导致形成一个或多个卫星液滴，其体积比主液滴小几个数量级。许多尝试旨在抑制或控制卫星液滴的形成，因为它们使打印结果模糊。对于第一次，一个简单的机制，其中一个单一的卫星液滴是专门形成的，并通过气流引导到基板，而主要的液滴仍然附着在用于控制弯月面的形成和破裂的金属棒的报告。高打印分辨率通过卫星液滴打印（SDP）来证明，而不需要容易堵塞的小孔。此外，从大孔产生的液滴使SDP能够处理粘性油墨，这对于传统的IJP来说仍然是一个挑战。
Despite their specific methodologies, all current noncontact printing techniques such as inkjet printing (IJP), involve the break-up of a liquid meniscus during the separation of the ink droplet from the bulk ink reservoir. Often, the break-up of a liquid meniscus results in the formation of one or more satellite droplet whose volumes are several orders of magnitude smaller than the primary droplet. Many attempts are directed to suppress or control the formation of satellite droplets because they blur the printing result. For the first time, a simple mechanism by which a single satellite droplet is exclusively formed and directed to the substrate by a gas stream while the primary droplet remains attached to a metal rod used for controlling the formation and break-up of the meniscus is reported. High printing resolution is demonstrated by satellite droplets printing (SDP) without the need for small orifices which are prone to clogging. Furthermore, the droplet generation from a large orifice enables SDP to handle viscous inks which has remained challenging for traditional IJP.