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http://dx.doi.org/10.7736/KSPE.2015.32.2.159

Parameter Analysis for the Lateral Thickness of the Coated Layer to Improve Product Quality in Large Area Roll-to-Roll Slot-Die Coating Process  

Park, Janghoon (Department of Mechanical Design and Production Engineering, Konkuk University)
Lee, Changwoo (School of Mechanical Engineering, Changwon National University)
Publication Information
Journal of the Korean Society for Precision Engineering / v.32, no.2, 2015 , pp. 159-166 More about this Journal
Abstract
Slot-die coating is well known technique to guarantee a uniformly coated layer and is compatible with roll-to-roll process. In actual roll-to-roll slot-die coating process, the lateral difference of coated layer thickness is observed. An experimental study was performed to improve the coating quality. Coating speed and coating gap were selected as the experimental factors. A full factorial, statistical method was conducted to optimize the process conditions. Based on the results of repeated experiment, the lowest deviation of lateral thickness (700 nm, <10%) was achieved at 10 m/min coating speed and $300{\mu}m$ coating gap. This result has significance because such optimized process guideline can be utilized with all process improvement in various coating applications.
Keywords
Roll-to-Roll; Slot-Die coating; Product quality; Statistical analysis; Sensitivity analysis;
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1 Chang, Y. R., Chang, H. M., Lina, C. F., Liua, T. J., and Wu, P. Y., "Three Minimum Wet Thickness Regions of Slot Die Coating," J. Colloid. Interf. Sci., Vol. 308, pp. 222-230, 2007.   DOI
2 Krebs, F. C., "Fabrication and Processing of Polymer Solar Cells: A Review of Printing and Coating Techniques," Sol. Energ. Mat. Sol. C., Vol. 93, No. 4, pp. 394-412, 2009.   DOI
3 Romero, O. J., Suszynski, W. J., Scriven, L. E., and Carvalho, M. S., "Low-flow Limit in Slot Coating of Dilute Solutions of High Molecular Weight Polymer," J. Non-Newtonian Fluid Mech., Vol. 118, pp. 137-156, 2004.   DOI
4 Carvalho, M. S. and Kheshgi, H. S., "Low-flow Limit in Slot Coating: Theory and Experiments," AIChE Journal, Vol. 46, No. 10, pp. 1907-1917, 2000.   DOI
5 Krutka, H. M., Shambaugh, R. L., and Papavassiliou, D. V., "Analysis of a Melt-Blowing Die: Comparison of CFD and Experiments," Ind. Eng. Chem. Res., Vol. 41, No. 20, pp. 5125-5138, 2002.   DOI
6 Kang, H., Park, J., and Shin, K. H., "Statistical Analysis for the Manufacturing of Multi-Strip Patterns by Roll-to-roll Single Slot-Die Systems," Robot. Cim-Int. Manuf., Vol. 30, No. 4, pp. 363-368, 2014.   DOI
7 Park, J., Shin, K. H., and Lee, C., "Optimized Design for Anti-Reflection Coating Process in Roll-to-roll Slot-Die Coating System," Robot. Cim-Int. Manuf., Vol. 30, No. 5, pp. 432-441, 2014.   DOI
8 Chesterfield, R., Johnson, A., Lang, C., Stainer, M., and Ziebarth, J., "Solution-coating Technology for AMOLED Displays," Information Display, Vol. 1, No. 11, pp. 24-30, 2011.
9 Soltman, D. and Subramanian, V., "Inkjet-printed Line Morphologies and Temperature Control of the Coffee Ring Effect," Langmuir, Vol. 24, No. 5, pp. 2224-2231, 2008.   DOI   ScienceOn
10 Hu, H. and Larson, R. G., "Marangoni Effect Reverses Coffee-Ring Depositions," J. Phys. Chem. B, Vol. 110, No. 14, pp. 7090-7094, 2006.   DOI
11 Bennett, J. M. and Booty, M. J., "Computational Method for Determining n and k for a Thin Film from the Measured Reflectance, Transmittance, and Film Thickness," Appl. Optics, Vol. 5, No. 1, pp. 41-43, 1966.   DOI
12 Nguyen, H. A. D., Lee, S. H., Shin, K. H., and Lee, S., "Optimization of Calendering Process using Taguchi Method to Improve the Performance of Printed Capacitor," Jpn. J. Appl. Phys. Vol. 53, No. 5S3, Paper No. 05HC06, 2014.
13 Lee, C., Kang, H., Kim, C., and Shin, K. H., "A Novel Method to Guarantee the Specified Thickness and Surface Roughness of the Roll-to-roll Printed Patterns using the Tension of a Moving Substrate," J. Microelectromech. S., Vol. 19, No. 5, pp. 1243-1253, 2010.   DOI   ScienceOn
14 Taguchi, G., "Introduction to quality engineering: designing quality into products and processes," Asian Productivity Organization, 1986.