Digital BW, The Print

>Don't leave the "Glop" sat in your printer for along period unused, 
>some types can react and cause the ink to dry out and solidify in 
>the cartridge particularly if it is acrylic or urethane based. 

Thanks for the warning.  I had a similar feeling and pulled it out as soon
as the experiment was done.  I use a C86 for testing.  It's a lot cheaper to
wreck one of these than the alternatives.

Glop is, of course, meant to be used in a printer, at least by itself.  I've
tried to inquire about clogging, but have found no evidence yet that it
clogs more than other inks.  This is an issue to keep an eye on, however.

>We did a 3year test on several versions of this type of combination.

Is it just the combination with other inks that is the problem, or does glop
by its nature tend to solidify?  

Frankly, the bulk glop looks most like the UT base.  When it is printed by
itself, it does have a bit of density to it.  So, it's clearly not just
base.  I think I've read the Epson version is an acrylic suspension.
Water-borne acrylic sprays, like aerosols, seem to have a bad reputation for
clogging those nozzles.

A paint technician once described water-borne acrylics as being like gooey
little golf balls suspended in water.  I have assumed that the acrylic that
Epson uses is relatively solid, but, on the other hand, it is used around
their pigments to help hold them onto the paper.  

Do you know how these Epson acrylic coatings and balls that are supposedly
used in the R800 glop compare to the acrylics that are in coatings, for
example the Golden mediums we were experimenting with for coating finished
prints?

Paul
www.PaulRoark.com 




 
Forest John

Paul Roark <paul.roark@...> wrote:
I mixed an LK based on PK and Glop.  Putting it into the C86 black position,
I printed a BO test strip with it and compared it to the standard MIS LK
printed the same way.  There was almost no difference.  So, Glop seems to
have no effect when it is mixed into the ink.



Paul

www.PaulRoark.com <http://www.paulroark.com/>  





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