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Scientists focused on high-speed imaging, offset-printing distance and scraper speed on the ink transfer of screen-printed carbon slurry.
screen printing is the most widely used process in the production of printed electronics because it consistently transfers inks containing a wide range of functional materials to a variety of substrates. However, despite its widespread use, it is not fully understood how the ink is transferred to the substrate through the mesh
.
existing theories are contradictory and lack experimental verification. Therefore, high-speed imaging technology is used in conjunction with screen printing simulation device, which is designed to provide good optical channels to study ink deposition in screen printing.
messerschmitt's theory describes changes in the four stages of ink flowing through the silk mesh, which are quantified based on changes in folding distance and scraper speed. The image analysis was compared with the measurement results of ink performance and compared with the printing analysis.
the basis of the development of
algorithms to better understand the process by which inks are transferred from mesh holes to substrates and then separated in screen printing. This can be used as a basis for developing predictive algorithms and for improving understanding of how to optimize print quality and performance.
the study has been published in the Journal of Coating Technology and Research Volume 17 (2020).
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