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 |
Journal volume: |
16 |
Number: |
6 |
Divisions: |
16 Department of Mechanical Engineering 16 Department of Mechanical Engineering > Institute of Printing Science and Technology (IDD) 16 Department of Mechanical Engineering > Institute of Printing Science and Technology (IDD) > Funktionales Drucken 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 |
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