Evaporation: The water-soluble ink is heated to its boiling point, causing the volatile components (such as water and some organic compounds) to evaporate and turn into vapor.
Condensation: The vapor then rises and enters a condenser, which is a coiled tube surrounded by cold water. The vapor comes into contact with the cold surface of the condenser, causing it to condense back into a liquid.
Collection: The condensed liquid, which is now purified water, is collected in a separate container.
By repeating this process multiple times, the water-soluble ink can be further purified and concentrated.
