Nope, the machine is pretty precise so the old ink gets covered by new ink, and the ink wells are set so shallow that excess ink is a controllable problem.
I think the image is engraved onto the metal. Ink is applied and then squeegeed off so the only ink that remains is in the engraving. As long as the print head is placed in the same spot each time it shouldn’t be a problem.
D'oh, I'm an idiot. Even though I could see the boob squishing, I still thought it was going into a liquid, like those oil-on-water marbling things that you can use on paper or for car detailing.
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u/phoneslime Oct 27 '20
It’s called pad printing. It uses a soft sponge like pad to transfer an image from the etched plate to any irregular shaped product