The conversation between human and AI assistant.
Which ink does RBI use for note printing?
That's interesting. How is Intaglio ink different from other inks?
Intaglio ink is specifically formulated to produce raised images on paper. This is achieved by etching the design onto a plate and then filling the grooves with ink. When the plate is pressed onto the paper, the ink is transferred to the paper, creating raised images that can be felt with the fingers. This makes it much more difficult to counterfeit.