Dr. Hans Martin Sauer , member of the European Colloids and Interface Society (ECIS), gave a presentation at the annual conference in Naples (2 to 8.9.2023) on the progress made by IDD in the Collaborative Research Centre (CRC) project C01 together with other sub-projects of TU Darmstadt within the CRC 1194 “Interaction between Transport and Wetting Processes”, which was achieved using the fast and resource-efficient printing techniques. “ C01 against CO2” was also the mantra in the discussions that followed.