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Paper ink drop comparing inks

A project log for Invisible QR Code Navigation for Robots 2020

Cheap UV invisible QR codes for indoor navigation of robotics. Print labels from Inkjet Printer and read with a normal camera.

josh-starnesJosh Starnes 07/08/2018 at 02:220 Comments

ok so the UV inks I ordered made for a inner cartridge came in. I am slightly disappointed because the red is practically non existent. Anywho I compared them to noodlers ghost bullet proof inks and the white and green inkjet inks were much brighter. As I mentioned before I am considering using both IR and UV for maximum contrast in any lighting conditions or lack there of.

All are normally invisible without special lighting , filters or camera.

Top - not visible is magenta

2nd- white UV

3rd- blue UV

4th -green UV

5th-  Noodlers Ghost UV

Tests against white paper is neeto,but the goal is to make invisible markers so I will print onto Matt or clear plastic. I put some on my finger of the green as well as the noodlers ghost white, the green is a tiny bit brighter. It is so close!!

Next is to start filling ink cartridges

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