Forced Wetting of Surfaces by Gravure Printing Cylinders (C01)

• Subject Area: Engineering Design, Machine Elements, Product Development
• Term: since 2016
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 265191195

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 wet-ting 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.

• DFG Programme: Collaborative Research Centres
• Subproject of: SFB 1194: Interaction between Transport and Wetting Processes
• Major Instrumentation: Höchstgeschwindigkeitskamera
• Instrumentation Group: 5430 Hochgeschwindigkeits-Kameras (ab 100 Bilder/Sek)
• Applicant Institution: Technische Universität Darmstadt
• Project Head: Professor Dr.-Ing. Edgar Dörsam