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home testing archival properties

home testing archival properties

2006-04-27 by lestihor

I am carrying out a home-brew test of Nanochrome ink. I have taped two 
prints on a window in full sun, both printed on my Epson 2200, both on 
Pictorico Gallery Glossy paper, one using OEM ink and the other using 
Nanochrome ink. I know this isn't very scientific, but it should 
answer the question, "Is Nanochrome dye/resin ink more, less or equal 
in light fading to Epson OEM pigment ink?"

The prints have been in the window for a week and neither are showing 
any discernable fading along the edge of black cover cards. Has anyone 
tried this sort of test? How long can I expect to leave the prints in 
the window before I see some fading in one or both prints?

Les

Re: [Digital BW] home testing archival properties

2006-04-27 by Carl Schofield

Any moment now with the Nanochromes.  The cyan (C and LC and the LK  
component also) in particular is very weak so expect to see  
significant warming as well.
Show quoted textHide quoted text
On Apr 27, 2006, at 4:24 PM, lestihor wrote:

> I am carrying out a home-brew test of Nanochrome ink. I have taped two
> prints on a window in full sun, both printed on my Epson 2200, both on
> Pictorico Gallery Glossy paper, one using OEM ink and the other using
> Nanochrome ink. I know this isn't very scientific, but it should
> answer the question, "Is Nanochrome dye/resin ink more, less or equal
> in light fading to Epson OEM pigment ink?"
>
> The prints have been in the window for a week and neither are showing
> any discernable fading along the edge of black cover cards. Has anyone
> tried this sort of test? How long can I expect to leave the prints in
> the window before I see some fading in one or both prints?
>
> Les
>

Re: [Digital BW] home testing archival properties

2006-04-28 by Helen Bach

Aren't the Nanochromes being reformulated to overcome some problems
with manufacturing inconsistency?

Best,
Helen

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, Carl Schofield
<scho@...> wrote:
Show quoted textHide quoted text
>
> Any moment now with the Nanochromes.  The cyan (C and LC and the LK  
> component also) in particular is very weak so expect to see  
> significant warming as well.
> 
> On Apr 27, 2006, at 4:24 PM, lestihor wrote:
> 
> > I am carrying out a home-brew test of Nanochrome ink. I have taped two
> > prints on a window in full sun, both printed on my Epson 2200, both on
> > Pictorico Gallery Glossy paper, one using OEM ink and the other using
> > Nanochrome ink. I know this isn't very scientific, but it should
> > answer the question, "Is Nanochrome dye/resin ink more, less or equal
> > in light fading to Epson OEM pigment ink?"
> >
> > The prints have been in the window for a week and neither are showing
> > any discernable fading along the edge of black cover cards. Has anyone
> > tried this sort of test? How long can I expect to leave the prints in
> > the window before I see some fading in one or both prints?
> >
> > Les
> >
>

Re: [Digital BW] home testing archival properties

2006-04-28 by Greg

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Helen Bach"
<helenbach@...> wrote:
>
> Aren't the Nanochromes being reformulated to overcome some problems
> with manufacturing inconsistency?
> 
> Best,
> Helen


I think John Edmunds is probably the only one that is allowed to
answer this one accurately. A few people may know the answer, but they
are probably bound by some sort of agreement. But then again, I could
be wrong.

Re: [Digital BW] home testing archival properties

2006-04-28 by will gibson

Les,

One thing you should do (or have done at the time you printed the window 
prints) is to print exact replicates and put them in dark storage. Then 
you can tell if indeed the window prints are fading at all or perhaps 
just fading equally if you can't discern a visual difference between them.

Will Gibson

lestihor wrote:
Show quoted textHide quoted text
> I am carrying out a home-brew test of Nanochrome ink. I have taped two
> prints on a window in full sun, both printed on my Epson 2200, both on
> Pictorico Gallery Glossy paper, one using OEM ink and the other using
> Nanochrome ink. I know this isn't very scientific, but it should
> answer the question, "Is Nanochrome dye/resin ink more, less or equal
> in light fading to Epson OEM pigment ink?"
>
> The prints have been in the window for a week and neither are showing
> any discernable fading along the edge of black cover cards. Has anyone
> tried this sort of test? How long can I expect to leave the prints in
> the window before I see some fading in one or both prints?
>
> Les
>
>
>
>
>
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Re: [Digital BW] home testing archival properties

2006-04-28 by Ernst Dinkla

Helen Bach wrote:
> Aren't the Nanochromes being reformulated to overcome some problems
> with manufacturing inconsistency?
> 
> Best,
> Helen

I only remember the promise several months ago that they would
be tested by some independent institutes.

Has the reformulation subject been discussed on a 1:1 base and
not in the lists ?  Nothing new then. Lyson did that with the
Fotonics, new coatings on their rebranded Hahnemuhle paper
they said which solved the fading of Fotonics on that paper.
It didn't solve it. But who knows it may be different this
time and we haven't had a nice long discussion on fading of
dye inks for at least 2 months.


Ernst
-- 

                    --
           Ernst Dinkla


www.pigment-print.com
(         unvollendet         )

Re: [Digital BW] home testing archival properties

2006-04-29 by lestihor

Will,

I didn't think to dark store identical copies. What I did do though 
is cover portions of each print with opaque black cardboard. Lifting 
the cardboard should show any fading between the covered and open 
portions.

Les

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, will gibson 
<will@...> wrote:
>
> 
> Les,
> 
> One thing you should do (or have done at the time you printed the 
window 
> prints) is to print exact replicates and put them in dark storage. 
Then 
> you can tell if indeed the window prints are fading at all or 
perhaps 
> just fading equally if you can't discern a visual difference 
between them.
> 
> Will Gibson
> 
> lestihor wrote:
> 
> > I am carrying out a home-brew test of Nanochrome ink. I have 
taped two
> > prints on a window in full sun, both printed on my Epson 2200, 
both on
> > Pictorico Gallery Glossy paper, one using OEM ink and the other 
using
> > Nanochrome ink. I know this isn't very scientific, but it should
> > answer the question, "Is Nanochrome dye/resin ink more, less or 
equal
> > in light fading to Epson OEM pigment ink?"
> >
> > The prints have been in the window for a week and neither are 
showing
> > any discernable fading along the edge of black cover cards. Has 
anyone
> > tried this sort of test? How long can I expect to leave the 
prints in
Show quoted textHide quoted text
> > the window before I see some fading in one or both prints?
> >
> > Les

Re: home testing archival properties

2006-04-30 by hjswim2@aol.com

Les: <... I didn't think to dark store identical copies. What I did do though 
 is cover portions of each print with opaque black cardboard. Lifting the 
cardboard should show any fading between the covered and open portions.>

Be careful with covering with black cardboard in window tests as the black 
may transfer heat to the covered portion of the print, and heat typically 
accelerates any changes. I'm doing a half-covered window test at the moment using 
foil as the cover exactly for this reason. You can read about it (it's ongoing) 
here:

http://www.dpandi.com/hj/windowtest

Covering only works if you have symmetrical images or uniform patches (I have 
the former on this test). I also have a reference print in the dark, and will 
probably go that route entirely with the next test.

Happy testing!

Harald
Harald Johnson
author, "Mastering Digital Printing, Second Edition"
DP&I.com ( http://www.dpandi.com )

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