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Appl. Sci. 2017, 7(12), 1302; https://doi.org/10.3390/app7121302

Printing Speed and Quality Enhancement by Controlling the Surface Energy of Cliché in Reverse Offset Printing

1
Department of Mechanical Engineering, Changwon National University, 20 Changwondaehak-ro, Uichang-gu 51140, Changwon-si, Gyeongsangnam-do, Korea
2
Department of Printed Electronics, Korea Institute of Machinery and Materials, Daejeon 34103, Korea
*
Author to whom correspondence should be addressed.
Academic Editor: Hyun Jae Kim
Received: 28 October 2017 / Revised: 21 November 2017 / Accepted: 30 November 2017 / Published: 15 December 2017
(This article belongs to the Special Issue Thin-Film Transistors)
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Abstract

Printed electronics is one of the emerging technologies owing to its low cost and productivity. Recently, many researchers tried to adapt printing technology to the fabrication of fine electronic patterns on flexible substrates, including the gate line of thin film transistors. In this study, we fabricated a flexible cliché using the nanoimprint process and used it in reverse offset printing. Then, we analyzed the effect of the surface energy of the imprinted cliché on process parameters, such as printing speed and rolling direction. We showed that the productivity of the process and quality of printed pattern can be considerably enhanced by controlling the surface energy of the cliché. When a flexible cliché is manufactured using a resin with a surface energy considerably different from that of the blanket, the ink can be detached easily and fine patterns can be engraved successfully regardless of the pattern shape. View Full-Text
Keywords: nanoimprint process; reverse offset printing; cliché; surface energy; gate line of TFT nanoimprint process; reverse offset printing; cliché; surface energy; gate line of TFT
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Cho, Y.T.; Jeong, Y.; Kim, Y.J.; Kwon, S.; Lee, S.-H.; Kim, K.Y.; Kang, D.; Lee, T.-M. Printing Speed and Quality Enhancement by Controlling the Surface Energy of Cliché in Reverse Offset Printing. Appl. Sci. 2017, 7, 1302.

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