Re: dealing with printers
Re: dealing with printers
- Subject: Re: dealing with printers
- From: Jan-Peter Homann <email@hidden>
- Date: Fri, 03 Jul 2015 12:46:22 +0200
Hello Mike,
You raise some interesting questions. From my personal point of view, a
workflow with substrate calculated data is currently fine for a inhouse
workflow, with proofing and printing in the same company or with a very
close cooperation between prepress provider and printer.
It does currently not fit the blind exchange of data and proofs based on
international standards (ISO) or international specifications (GRACoL,
PSO etc... )
ESpecially in the uncoated area, we have the case, that current
standards and specs are not addressing papers with a lot of optical
brighteners.
Instititutions like e.g. FOGRA / ECI are working intensive on this issue
and I guess also Idealliance.
See e.g. http://www.eci.org/en/projects/fred15 scrool down and have a
look at FOGRA52 data
Regards
Jan-Peter
Am 17.06.2015 um 19:19 schrieb Mike Stewart:
Now that we are moving to Substrate Calculated Data sets based on paper
white; how on earth do we communicate this to printers. Before OBA's we had
GRACoL, Fogra47 - just to name a few. We would colour manage our proofs to
GRACoL or Fogra47 (or some print specification), place an Idealliance
colour bar on each proof and the customer/printer could measure the colour
bar to see if we were in compliance or not to the particular specification.
Now we start from GRACoL Uncoated 2013, change the Paper White values,
create a new Data Set and proof to the new data set. Our colour bar on each
proof now becomes useless as it will never match to the original GRACoL
Uncoated 2013. How do we communicate this to a printer in Asia. How can
they now trust our proofs. Do we give them a small single row Press Type
Colour Bar that prints within the job itself and also give the printer the
specs. for that colour bar. If so, what are the specs. of that colour bar
(C,M,Y,K,R,G,B, grey balance swatches, etc). Data for that file would have
to be colorimetric and not solid ink and dot gain values I'm guessing.
Thanks
Mike Stewart
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