Greetings I am banging my head against the wall regarding an issue I have. We press a lot of different security elements, sometimes involving specialized UVB and UVA inks. This is not a CURING problem, but actual UV color is being utilized. I literally want to measure the thickness because of the various results we are having, have too big of a discrepancy. This falls under BANKNOTE and other secure documents press. I want to make a color profile that is actually working and tied to the ink and paper we use. I have failed to find any colorimetry measurement device or at least a densitometer working in the 280 nm - 380 nm range. I need to calibrate the press process for repeatable results. Something I can measure. I was thinking of making a device myself, by utilizing a sensor and UVB and UVA LEDs, but surely, there must be a product available somewhere? Then I was thinking of using ultrasonic sensors to measure the thickness, but that is not as precise as I need it to be. I know you mostly deal with spot or cmyk colors, but any insight you may have is valuable to me. XRITE and others dont have any measurement device I could utilize. At least I did not find any.
Found a solution after days of searching. A small company in Switzerland has what I need. FLUO densitometer If this concerns someone, give them a call.
