Fluorescent ink

[sornchai]

How I control quality when printed fluorescent ink ? I could measure L*a*b* values or density values? Thank you sir

 

[DeltaE]

In my opinion, this ink will absorb UV light and emit some visible light. So I recommend you to use spectrophotometer with light source with UV light (like xrite eXact - M1). See picture for your infomation!
Regards,
Delta E

 

[gordo]

How I control quality when printed fluorescent ink ? I could measure L*a*b* values or density values? Thank you sir

Density.

 

[Deleted member 16349]

Density.

Yes, density if it is measurable would be the best. But if one has opaque inks, then it becomes a problem.

In the end, the best solution is to have a positive ink feed. This ensures consistency during the run and when calibrated to the specific ink, it will be predictable at the start.

 

[sornchai]

Thank you very much sir

 

[Dario]

What about Fluorometers?
Are those a thing in printing industry?