Overview
C01 investigates the wetting and dewetting in gravure printing. It focuses on the study of influencing factors on the characteristic dot and lamella splitting, which determine the printing result and pattern formation. The focus here is on the shear-thinning behavior of the fluid, temperature differences between the gravure plate, fluid and substrate, and the role of the gas phase. A further goal is to better understand the flow and wetting in the doctor blade chamber in order to optimize the printing process and prevent the inclusion of gas bubbles. Together with A06 flow profiles and with A01 the film formation will be analyzed and simulated with B04 .
Image gallery
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Patterns form during ink splitting: Saffman-Taylor instabilites (viscous fingering) -
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Viscous fingering as highly dynamic process: patterns for different printing resolutions (print speed was 1m/s) -
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The transition region between dot and lamella splitting
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Team
| Name | Contact | |
|---|---|---|
| Prof. Dr.-Ing. Edgar Dörsam | doersam@idd.tu-... +49 6151 16-22780 S1|10 203 |
| Pauline Rothmann-Brumm M.Sc. | brumm@idd.tu-... +49 6151 16-23778 S1|10 314 |
Associated members
| Name | Contact | |
|---|---|---|
| Dr. Hans Martin Sauer Functional Printing | sauer@idd.tu-... +49 6151 16-22857 S1|10 207 |
Publications and conference contributions
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