Patterning defects in high-speed reverse offset printing: lessons from contact dynamics
Patterning defects in high-speed reverse offset printing: lessons from contact dynamics
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高速反向胶印中的图案缺陷：接触动力学的教训
DOI：
10.1088/1361-6439/ab024b
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发表时间：
2019
影响因子：
2.3
通讯作者：
Ushijima Hirobumi
中科院分区：
文献类型：
--
作者：
Kusaka Yasuyuki;Mizukami Makoto;Yamaguchi Tetsuo;Fukuda Nobuko;Ushijima Hirobumi
印刷速度限制是印刷电子高通量生产的关键问题。本研究探讨高速运转之逆向柯式印刷系统中，严重之浮皮型缺陷之形成机制。系统的研究表明，印刷速度，压痕和材料特性，如厚度和弹性的聚二甲基硅氧烷（PDMS）片的缺陷的大小和密度显着影响。通过高速摄像机观察弯曲PDMS片材和平板玻璃之间的辊隙形成，发现在接触形成的最初阶段，部分接触同时且不稳定地形成，然后加宽;然而，在后期阶段，这些点的聚结导致产生捕获在接触区域中的气泡，其持续数秒。基于互补实验的消光行为的捕获的空气，我们提出了一个新的缺陷形成模型的皮疹状转移缺陷中观察到的印刷测试，由于捕获的空气区域造成的接触不稳定性的PDMS。
Printing speed limitation is a critical issue for the high-throughput production in printed electronics. In this study, the formation mechanism of severe rash-type defects in a reverse-offset printing system operating at a high speed is discussed. A systematic investigation showed that the size and density of the defects were significantly influenced by the printing speed, indentation and by the material properties, such as thickness and elasticity of the polydimethylsiloxane (PDMS) sheets. The observation via a high-speed camera of the nip formations between a curved PDMS sheet and a flat glass revealed that, at the very initial stage of contact formation, parts of contacts were concurrently and unstably formed then widened; however, during the later stage, the coalescence of these spots led to the generation of air bubbles trapped in the contact regions, which lasted for several seconds. Based on complementary experiments on the extinction behaviours of the trapped air, we propose a new defect formation model for the rash-like transfer defects observed in the printing tests due to the trapped air regions resulting from the contact instability of PDMS.
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影响因子：
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影响因子：
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影响因子：
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