Advertisement

Journal of Mechanical Science and Technology

, Volume 29, Issue 12, pp 5069–5074 | Cite as

Fast stabilization of web tension in drying process of roll-to-roll printing equipment for printed electronics

  • Sung Woong Jeon
  • Cheol Kim
  • Chung Hwan KimEmail author
Article

Abstract

In roll-to-roll printing for the fabrication of flexible printed electronic devices, it is important to minimize the tension variation of the web because the tension variation strongly affects register errors and the quality of the printed devices. Moreover, the high drying temperature required to sinter functional inks causes shrinkage of the plastic web, which yields severe register errors. After the drying process, the web tension should increase, elongating the web, which contracts because of the drying process. Once the shrunken web recovers its original length by elongation, the tension stabilizes at a higher value. This steady-state stabilization of the web tension requires a long time, corresponding to the time constant between two printing units, which could increase the production time. In this study, a faststabilization method for web tension in the drying process is proposed to reduce the time required for the stabilization of the tension. For the fast stabilization, a dancer system is introduced, and the variation in the tension is used as a reference value for the tension stabilization. The proposed method is verified by simulations and experiments using actual roll-to-roll printing equipment.

Keywords

Dancer Printed electronics Roll-to-roll Stabilization Thermal shrinkage Web tension 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [1]
    J. C. Park, S. W. Jeon, K. S. Nam, L. Liu, J. Sun and C. H. Kim, Tension control of web of winder span using adaptive gain control method, Japanese Journal of Applied Physics, 53 (5S3) (2014) 05HC11.CrossRefGoogle Scholar
  2. [2]
    C. W. Lee, H. K. Kang and K. H. Shin, A study on tension behavior considering thermal effects in roll-to-roll Eprinting, Journal of Mechanical Science and Technology, 24 (5) (2010) 1097–1103.CrossRefGoogle Scholar
  3. [3]
    J. S. Lee and C. W. Lee, Analysis of thermal effect on tension of a moving web in roll-to-roll printed electronics, Journal of the Korean Society of Manufacturing Process Engineers, 12 (5) (2013) 9–15.Google Scholar
  4. [4]
    J. W. Seong, J. S. Lee, H. Hämäläinen, D. Lee and K. H. Shin, A study on the tension model considering the changes in the thermal characteristics of polymer film in roll-to-roll systems, Proc. Korean Society of Precision Engineering Autumn Conference (2012) 275–276.Google Scholar

Copyright information

© The Korean Society of Mechanical Engineers and Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  1. 1.Convergence Manufacturing System Lab.Chungnam National UniversityDaejeonKorea

Personalised recommendations