Re: To UV or not
Re: To UV or not
- Subject: Re: To UV or not
- From: Troy Buccini <email@hidden>
- Date: Fri, 22 Sep 2006 10:04:54 -0500
I just measured a Monterey gloss sample from Tembec mills. There are
OBA's in the paper. I can assure you of that. Not enough to cause the
this paper to show a spike at 457nm, but enough that you can see with
a black light. When I perform a quick metamerism check of the paper
white D50 to F2 using DIN6172 I get a metamerism Delta E diff. of
1.44. That is pretty big for the Whtpt of a press stock. Just cause
it is dark and dingy compared to a #1 or #2 stock does not mean that
the papers haven't already been brightened from an even darker state.
A good proofing media will be less than 1 Delta E in the same test.
It sounds like the press stocks are the issue, now that good proofing
medias are under control. Maybe using profiling SW that allows you to
use your light source Spectral data will improve your matches visually?
Thanks,
Troy
On Sep 22, 2006, at 6:06 AM, Bret Hesler wrote:
True, but I am in the commercial printing market, mostly printing
on #1's
#2's and #3's. The lowest grade paper we have printed on was a
groundwood #4
and it did have FWAs.
--
Bret Hesler
L.P. Thebault Company
Parsippany, New Jersey
On 9/22/06 12:02 AM, "Roger Breton" <email@hidden> wrote:
I am not a fan of the FWA-free papers, simply because the
printing papers
still have them.
--
Bret Hesler
Show me FWA in Monterrey Gloss #5, SWOP's current #5 coated
reference paper.
Not a trace I can see.
Roger Breton | Laval, Canada | email@hidden
http://pages.infinit.net/graxx
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