Digital BW, The Print

Mitch,

For the dye inks I would stick to the Epson papers. It has long been
understood that the chemicals used to buffer archival papers and mat board
would damage color dye materials such as dye transfer prints or textiles
dyed with vegetable dyes.

The Hahnemuhle papers appear to be fully buffered to a pH of 8.0+ and this
buffering, while extremely good for the life of the paper, may be harmful to
the life of the color dye image.

While the carbon pigment inks in theory are immune to the effects of the
buffering agents, I wonder if that is the reason prints on H. papers warm
more than on EAM.

There is also the nature and pH of the coatings used on inkjet papers and
how they interact with the inks. All of this is proprietary information and
we really don't know what will happen over the long haul.

Martin Wesley

http://www.borderless-photos.de/guests.html



----- Original Message -----
From: "Mitch Alland" <malland@...>
To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
Sent: Thursday, July 11, 2002 6:32 PM
Subject: [Digital BW] Photo Rag longevity versus EHM with Epson dye inks?


> [Although this question concerns color inks, I am posting it here as I had
no response on the Epson printer color forum.]
>
> In the Sep 28, 2001 "newsletter" on www.inkjetart.com there was a report
based on Epson information that the life of Epson 1280 (dye) inks on Epson
Heavyweight Matte was much longer (25 years) than on Epson Archival Matte
(10 years), as the latter works better with pigment inks.
>
> Does anyone know what is the situation with Epson 1280 dye inks with
Hahnemuehle Photo Rag: is the lonegevity shorter than with Epson Heavyweight
Matte, along the lines of  Epson Archival Matte?
>
> --Mitch/Bangkok
>
>
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