Well, HP has argued it spends a billion dollars a year on “ink research and development,” and that the ink “must be formulated to withstand heating to 300 degrees, vaporization, and being squirted at 30 miles per hour, at a rate of 36,000 drops per second, through a nozzle one third the size of a human hair. After all that it must dry almost instantly on the paper.”
Like the money Gillette spends on 'research' for it's razors up in Reading and Boston USA, shouldn't they know most of the basics by now ? [ going past a 5-blade seems redundant... ]. How much billion dollar research is further needed ?
And disregarding that what all those words mean is that it is a computer printer ink: one expects an ink to do all that. The mechanics don't matter to users.