RE: Epson Enhanced Matte
RE: Epson Enhanced Matte
- Subject: RE: Epson Enhanced Matte
- From: Roger Breton via colorsync-users <email@hidden>
- Date: Wed, 19 Jun 2019 08:28:30 -0400
Ernst,
I was quite pleased to find your database.
I’m glad I now know that the Enhanced Matte Paper was originally called
Archival Matte Paper and that Ultra Premium Presentation Paper Matte is the cut
sheet version of Enhanced Matte Paper. That’s a tough act to follow. Since most
of my applications are intended for proofing, I don’t really care that the OB
in the paper decays over time, due to the factors you mentioned, but it is a
“problem”. I, personally, would never print images on a substrate containing
FWA to put on the walls of my living room – who does that?
Your last comments about “Viewing conditions” are well taken. The majority of
clients I’ve worked with, in the past, don’t view their jobs under any kind of
controlled lighting, and would never care to take the time to even step outside
their building to use “sunlight” or “daylight” which, in my opinion, would be
better than “Cool white” or “Warm white” or whatever else “office lighting”.
Thank you so much for taking the time to respond 😊
/ Roger
From: Ernst Dinkla <email@hidden>
Sent: Wednesday, June 19, 2019 5:02 AM
To: email@hidden
Cc: Martin Orpen <email@hidden>; 'colorsync-users?lists.apple.com'
List <email@hidden>
Subject: Re: Epson Enhanced Matte
Roger,
M0. Tungsten light source that does not go deep into UV. i1Share spectral
measurements and the Lab data taken from that app too.
380 to 730 NM readings. With an archive manager you can open SpectrumViz and
get to the Data files.
The goal of SpectrumViz was identifying whether there were OBAs used in the
papers and where in the paper structure. On the web page is an explanation
which conclusions can be made of the results. I think the app contributed to
the reduced use of OBAs in inkjet art papers and to the use of better normal
whitening agents (high L with a smooth continuous spectral plot) and in some
cases to better fluorescent brightening agents (on longevity) in said papers.
Meanwhile with improved pigment inkjet inks the main fading/color constancy
issues are in the substrates printed on.
Aardenburg-Imaging.com has excellent longevity testing done for the same
purpose. On inkjet inks and the paper whites where Wilhelm-Research has not
contributed much on the last aspect. AFAIK you will find paper white
measurements there done more according your methodology. Look in the test
result PDFs. Interesting observation on OBA/TiO2 containing paper and paper
white color shifts due to dark storage there too. That next to articles on gas
fading and light induced fading.
Sometimes manufacturers react in another way on bad fade test reports: Your
Enhanced Matte Paper was originally called Archival Matte Paper. But yellowed
terribly over time. The name changed several years ago. Ultra Premium
Presentation Paper Matte, is the cut sheet version of Enhanced Matte Paper.
it is not my territory in the graphic arts but this (new) emphasis on matching
proofing papers with OBA containing production stock is ignoring the fact that
the consumer viewing conditions are as uncertain as they used to be in the
past. This type of profiling becomes almost an academic effort and probably
stimulates the use of OBAs which will only result in less color constancy in
the real world. i thought it had a purpose for outdoor applications but even
there I see some practical issues. I know as long as it satisfies the customer,
ISO standards etc ............
Met vriendelijke groet, Ernst Dinkla
Dinkla Grafische Techniek
Quad, piëzografie, giclée
www.pigment-print.com <http://www.pigment-print.com>
On Wed, Jun 19, 2019 at 1:28 AM Roger Breton via colorsync-users
<email@hidden <mailto:email@hidden> >
wrote:
Found the Lab data for the Enhanced Matte 190!
Had to leave the mouse over the media name, for the yellow "tab" information to
appear.
But... only CIE Lab 96.03 0.6 -2.1?
I guess the instrument used to make the measurement, an X-Rite Eye One Basic,
means that this is an "M0" or "Unfiltered UV" or "Legacy" measurement. So,
using an M1 instrument, the b* value would a little more "negative". But by how
much?
The Doubleweight Matte 160 is CIE Lab 93.3 1.9 -4.4, a little "better" for my
purpose, despite the lower ISO Brightness number? If I'm to stick with Epson,
my "best" bet is with Presentation Matte 172, at CIE Lab 94.6 2.2 -5.8.
Best / Roger
-----Original Message-----
From: Martin Orpen <email@hidden <mailto:email@hidden> >
Sent: Tuesday, June 18, 2019 5:50 PM
To: email@hidden <mailto:email@hidden>
Cc: 'colorsync-users?lists.apple.com <http://lists.apple.com> ' List
<email@hidden <mailto:email@hidden> >
Subject: Re: Epson Enhanced Matte
> On 18 Jun 2019, at 21:57, Roger Breton via colorsync-users
> <email@hidden <mailto:email@hidden> >
> wrote:
>
> Hate to ask but would anyone have “real” CIE Lab measurements (farbmessung)
> for this paper? Thanks for your patience and help.
Roger
Ernst Dinkla’s SpectrumViz has measurements for loads of inkjet papers:
<http://www.pigment-print.com/spectralplots/spectrumviz_1.htm>
Requires JRE to run.
Cheers
--
Martin Orpen
Idea Digital Imaging Ltd
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