Weekly Quiz: True or False – Invisible Ink is a Thing

Answer: True!

One cool example is HP Indigo’s ElectroInk for digital printing which comes in Yellow or Blue. It only becomes visible when exposed to ultraviolet light.

Want to see it in action? Be sure to check out this video of DataGraphic’s amazing notebook covers!

0 Comments

Leave a reply

Your email address will not be published. Required fields are marked *

*

© 2002 - 2024 PaperSpecs