About Offset machine calibration using X rite i1 Pro (without polarization filter

[ponnapati123]

We are calibrating Offset machine without polarization filter using X rite i1,that is M0 measurement device. But as per my understanding MO device doesn't filter UV and we are using fluorescent papers, and due to glossyness of inks in wet sheet MO device will give different results. I would like to know which device is best suitable to this situation!!!!!!

 

[arossetti]

You might want to look into replacing your i1 with a i1Pro2 which allows M1 measurement. Or you can use a substrate relative calculator like so Substrate Relative Calculator for GRACoL 2013, SWOP 2013 | Idealliance and continue to use your M0 device.

I think I'm correct on everything above but one of the experts can chime in if not.

 

[gordo]

We are calibrating Offset machine without polarization filter using X rite i1,that is M0 measurement device. But as per my understanding MO device doesn't filter UV and we are using fluorescent papers, and due to glossyness of inks in wet sheet MO device will give different results. I would like to know which device is best suitable to this situation!!!!!!

M0 is for any use where neither substrate nor imaging colorants fluoresce. M0 does not fully define either the measurement illuminant condition or the UV content of the light source. It's meant to include historical instruments that do not fit into any of the other M conditions.

This was the case for the instruments that were used to create the ISO/GRACoL data sets - i.e. all industry standard print conditions have been established with M0 instrumentation. OBAs were present in the substrates but were not considered. Effectively M0 is the de facto standard measurement illumination condition for graphic arts

Despite that ISO 13655 specifies that M0 is not recommended for use when measured sheets exhibit fluorescence (which is the case for most printing papers but not proofing papers!) where there is a need to exchange measurement data between facilities.

If you're sure that your inks don't fluoresce then M1, part 2 may be appropriate as it is designed for use when a substrate may fluoresce and you want to include the fluorescing characteristic.

M2 excludes UV (i.e. UV-cut)

It's a mess that many, if not most, printshops ignore.
.