Here I could have used a extra pair of hands , but it was just a quick test before bed after filling cartridges. I overplayed the IR ink onto the UV and the contrast really pops! Much better that IR on white paper by itself, when UV  light is off you can see the camera picks up the IR ink on white paper as dark gray. Remember the longer term is invisible tags which in most cases means clear or Matt clear adhesive labels on printable sheets.

The pictures loaded in weird places on my phone so I will fix that tommorow on a pc.

IR only with the IR camera-