I have recently bought this note:
The catalogue says there are two types: one that has UV activity and one that doesn't.
I believe there is only one type and that the perceived “UV activity” is just reflection of the UV light from a particular ink colour.
Here's my note under 365nm:
It doesn't fluoresce, in my opinion. Parts of it are a different colour, that greenish colour, but those parts are also a certain colour under white light. It's a pale brown. I don't see it on the reverse and the reverse has no areas looking green under UV.
I would like to know if someone has a note that doesn't look like the above under UV.


