Invisible Ink

Question

Question, does anybody know what is the naming convention for the HP invisible ink when working on Indesign? Thx

Brad @ Roaring Mouse · Accepted Answer

Check with your vendor. I just checked with my vendor who has a similar device (7800); They just said to create a spot colour called "Invisible Yellow" or "Invisible Blue", whichever one you are using, and they can map it in their RIP accordingly, but your vendor may vary... everyone wants something different. (fyi: The 12000 has 7 ink bays, so they will run CMYK in 4 bays and the special ink in a 5th bay, so all printing occurs at the same time). Just make sure your elements are set to overprint your base art (if that's what you want).

James Gifford—NitroPress · Answer

It is typically used as a replacement for the black (K) cartridge in HP printers, so using 100%K on its own layer for management would probably be the right approach. You can't print black and UV at the same time, AFAIK, so it would be a single spot color overprint sent as black but printed in UV.

Or so I *think*. If you're not managing the printing yourself, ask your printer.

But in any case, spot color naming is usually completely arbitrary. The press operator has to set up the ink regardless of its name. You could export a plate in PDF for color name "Bunny FooFoo" and all the printer needs to know is that plate is to be printed using Pantone 17-1937 TCX Hot Pink. (But yes, it would be safer to name the color and plate that...)

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