I filled cartridges will all the inks I have. I am likely to use noodlers and the UV absorbing ink , but I will start testing different labels soon. I picked up a Epson Workforce printer that uses these cartridges for 89 dollars from Office Depot. I believe I will dedicate the printer to making these invisible tags as to not mix inks.

Noodlers White versus UV yellow, very close , but the yellow is 5 times the cost!