Abstract
In functional printing, film homogeneity is a key criterion, but there are several phenomena leading to inhomogeneities. We shall focus on the solvent evaporation process of gravure-printed thin films. The best aspects of different published approaches are combined to create a new algorithm for optically determining the film thickness development. In this way, small structures as well as the overall thickness of large-area thin films can be tracked while drying. It becomes clear that the biggest challenge is balancing the camera resolution and frame rate to receive plausible and accurate results.
| Item Type: |
Article
|
| Erschienen: |
2019 |
| Creators: |
Stamm, Jacqueline and Daume, Dominik and Hartwig, Tobias and Oschmann, Maximilian and Schäfer, Julian and Sauer, Hans Martin and Dörsam, Edgar |
| Title: |
Dynamic interferometric imaging of the thickness distribution of evaporating thin liquid films |
| Language: |
English |
| Abstract: |
In functional printing, film homogeneity is a key criterion, but there are several phenomena leading to inhomogeneities. We shall focus on the solvent evaporation process of gravure-printed thin films. The best aspects of different published approaches are combined to create a new algorithm for optically determining the film thickness development. In this way, small structures as well as the overall thickness of large-area thin films can be tracked while drying. It becomes clear that the biggest challenge is balancing the camera resolution and frame rate to receive plausible and accurate results. |
| Journal or Publication Title: |
Journal of Coatings Technology and Research |
| Divisions: |
16 Department of Mechanical Engineering
16 Department of Mechanical Engineering > Institute of Printing Science and Technology (IDD)
DFG-Collaborative Research Centres (incl. Transregio)
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 1194: Interaction between Transport and Wetting Processes
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 1194: Interaction between Transport and Wetting Processes > Research Area C: New and Improved Applications
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 1194: Interaction between Transport and Wetting Processes > Research Area C: New and Improved Applications > C01: Forced Wetting with Hydrodynamic Assist on Gravure Print Cylinders
Profile Areas
Profile Areas > Thermo-Fluids & Interfaces |
| Date Deposited: |
16 Jul 2019 05:27 |
| DOI: |
10.1007/s11998-019-00236-z |
| Official URL: |
https://doi.org/10.1007/s11998-019-00236-z |
| Export: |
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