Digital BW, The Print

Interesting in that in the past I did south window tests with samples 
of EAM/Piezo (and about 4 or 5 other papers) ink and later, MIS VM ink 
and Legion Photomatte. In all cases, when I put three light coats of 
Lumijet Imageshield on, the warming was less. I had thought Lumijet 
Imageshield was the same as Lyson Print Guard.
Jim H.




--- In DigitalBlackandWhiteThePrint@y..., "Paul Roark" 
<paul.roark@v...> wrote:
> Steven,
> 
> The sprayed and un-sprayed EAM test strips look the same.
> 
> Paul
> 
> ______________
>   -----Original Message-----
>   From: Steven Schaefer [mailto:stevenr@m...]
>   Sent: Saturday, April 20, 2002 1:59 PM
>   To: DigitalBlackandWhiteThePrint@y...
>   Subject: Re: [Digital BW] Fade test - FS-N & Lyson Print Guard
> 
> 
>   does the Print Guard give the print a more pearl look?
> 
>   Paul Roar wrote:
>   >
>   > After 300 hours in my fader, the EAM test strips with and 
without
>   > Lyson
>   > Print Guard spray faded and warmed the same amount.
>   >
>   > One of the Print Guard samples had 4 passes of spray done in a 
single
>   > spraying session, the other had 3 separate sessions, each with 4
>   > passes.
>   > Again, there was no difference in the fading or warming between 
the
>   > different amounts of Print Guard applied.
>   >
>   > By 300 hours I usually have a pretty good idea of how an 
ink/paper is
>   > going
>   > to do.  So, my conclusion is that there is no significant 
difference
>   > in
>   > fading and warming between MIS FS-N inks on EAM paper with and 
without
>   > the
>   > Lyson Print Guard spray.  It appears to have no effect.
>   >
>   > The Print Guard spray lowered the Dmax slightly.  The one with 
more
>   > print
>   > guard had lower Dmax.
>   >
>   > At first, my conclusion was that the spray was of no value to 
me, but
>   > I am
>   > changing that opinion -- it does have value.  While it may not 
affect
>   > fade/warming resistance, it does what it is supposed to do.  The
>   > snapshot on
>   > my refrigerator that had a single, heavy spray of Print Guard 
looks
>   > great
>   > and does not show the finger prints that I have been purposely 
putting
>   > on
>   > it. So, the spray appears to be very effective at protecting 
these
>   > otherwise
>   > rather fragile pigmented quads against the usual fingerprints 
and
>   > abrasion
>   > that snapshots are subject to.
>   >
>   > I might add that this is the first test I've done of the 
production
>   > MIS
>   > FS-N.  Whereas the last FS ink sample I tested to 300 hours 
warmed
>   > about 7
>   > units (of 256), the FS-N in this test warmed only 0.5 units.  
The
>   > fading was
>   > almost identical.
>   >
>   > Paul
>   > http://www.PaulRoark.com
>   >
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