Re: Profiling a newsprint press / subsequent profile editing
Re: Profiling a newsprint press / subsequent profile editing
- Subject: Re: Profiling a newsprint press / subsequent profile editing
- From: Henrik Holmegaard <email@hidden>
- Date: Fri, 13 Jun 2003 17:07:36 +0200
On Friday, Jun 13, 2003, at 13:42 Europe/Copenhagen, Roger Breton wrote:
What will a polarizing filter do to help improve the quality of the
measurements?
A polarizing filter may give you a better black. But you need to check
the finished profile to see if you like it overall. There is a
technical explanation why polarizing may or may not be useful for rough
papers and for some, now rare, methods of laying down colorant. Some
years ago when this first came up the example used was wax printers
which produce a corrugated colorant surface. As far as I know measuring
L*a*b* polarized is not standardized, at least that's what was
published with everyone's consent in 2000.
You may want to talk to IFRA about this, or take it up with the
instrument side directly. Overall the recommended approach is to
measure non-polarized, and of course in the dry state the colorant will
also be viewed in by the print buyer.
Henrik
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