Re: proofing to match sheetfed uncoated
Re: proofing to match sheetfed uncoated
- Subject: Re: proofing to match sheetfed uncoated
- From: Louis Dery <email@hidden>
- Date: Wed, 15 Apr 2009 14:46:00 -0400
Hello Mike,
About your workflow, do you repurpose (CMTK to CMYK) job for Uncoated
stock OR you simply apply a curve for uncoated dot gain you have?
Just want to understand what you mean about "contaminated inks" as
they appear in the canned US Sheetfed Uncoated profile.
A profile made with a good GCR and lower ink coverage would help for
a custom uncoated stock profile.
Take a look at the following link that may be of interest for you:
http://www.environmentalbychoice.com/papers_colour-profile.php
Louis Dery
On Apr 15, 2009, at 2:08 PM, Mike Stewart wrote:
Lately I have been working on an Indigo 5000; trying to make it a
reliable
proofing machine. So far so good; especially when proofing to GRACoL
specs. It should be mentioned that we are also using a Creo Production
Flow RIP. Now that I have my sheetfed coated process where I want
it; I'm
now looking to match an uncoated sheetfed press sheet. If I use the US
Sheetfed Uncoated profile and my Indigo profile I find that the
resulting
proof is very muddy, dirty, etc. etc. Looking at the US Sheetfed
Uncoated
profile I see that the CMYK colorants are somewhat muddy - is that
where
my issue is? Maybe I need to create a profile that is not so muddy
in the
first place. I know from doing press checks that an uncoated sheet
will
print with dot gains ranging about 3 - 5 percent higher than a coated
sheet; but I really cannot see the inks being as contaminated as they
appear in the canned US Sheetfed Uncoated profile. I do, however,
want to
stay within "Industry Standards". Any help would be appreciated. Mike
Stewart
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