19 Jun
2019
19 Jun
'19
2:30 p.m.
In addition: In SpectrumViz there are several papers, especially in the RC group, that have a Lab b of -10. M0 measurements with an non-UV-cut i1Pro, So I wonder whether an extrapolation to M2 is possible at all. It is more likely that fluorescent whitening agents are not restricted to one UV spectral band and some may absorb closer to 400NM than other types. Not to mention the UV absorption by TiO2 whitening agents that could interfere in any UV reading while it emits the energy as heat, not in the blue spectrum bands. Wonder how they fix that in M2 readings. Met vriendelijke groet, Ernst Dinkla Dinkla Grafische Techniek Quad, piëzografie, giclée www.pigment-print.com