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http://dx.doi.org/10.3795/KSME-B.2014.38.8.709

Effect of PDMS Blanket Deformation on Printability in Reverse-Offset Printing  

Choi, Young-Man (Dept. of Printed Electronics, Korea Institute of Machinery and Materials)
Kim, Kwang-Young (Dept. of Printed Electronics, Korea Institute of Machinery and Materials)
Jo, Jeongdai (Dept. of Printed Electronics, Korea Institute of Machinery and Materials)
Lee, Taik-Min (Dept. of Printed Electronics, Korea Institute of Machinery and Materials)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.38, no.8, 2014 , pp. 709-714 More about this Journal
Abstract
Reverse-offset printing is one of the technologies that can be used for patterning fine features of the order of a few micrometers for printed electronics. In reverse-offset printing, a coated ink film is transferred to a blanket made of elastomer-like poly-dimethylsiloxane. Then, the blanket is impressed onto a clich$\acute{e}$ that has intaglio patterns. The blanket is deformed by penetrating the intaglio of the clich$\acute{e}$ according to the printing pressure. Excessive deformation of the blanket can cause printing defects upon touching the bottom of the intaglio pattern, especially in large patterns. In this paper, we modelled the deformation of the blanket using the finite element method. Considering the actual printing parameters, a condition for fabricating a clich$\acute{e}$ is proposed to prevent defects by the deformation of the blanket.
Keywords
Reverse-Offset Printing; Finite Element Analysis; Printability;
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