I am trying to use the ink C2070424P2 in order to carry out drop casting or inkjet printing of it. However it is suitable for screen printing according to the specs. Has anyone tried to dilute it or to add surfactants in order to decrease its viscosity so that it can be drop casted or inkjetted?
Before inkjet the ink, you have to characterize the ink. Try to find out the ohnsorge number for your ink using ink parameters such as surface tension, Nozzle diameter, density, viscosity. Once Ohnsorge number value come under printing range then put the ink in your print head for furhter processing.
The viscosity and surface tension are outside of the ranges which the inkjet printer that I have can process. I am trying to find ideal solvents which can decrease the viscosity and surface tension. The main components of the ink are prussian blue molecules deposited on graphite particles
Mix two different solvent such as DI water and Ethanol in appropriate volume ratio in order to get the viscosity and surface tension in range of inkjet printer requirement and disperse your prussian blue molecules in final solvent before inkjet the ink and also go for the wettability test to confirm the wetting behavior with your substrate.
The problem is that the Prussian blue - graphite molecules are precipitating out
The variability of Prussian blue's composition is attributable to its low solubility, which leads to its rapid precipitation without the time to achieve full equilibrium between solid and liquid.Regarding stabilization go through the below link.
Article Stabilization of the Prussian Blue Color in the Determinatio...
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