Re: 20ps Dye-based inks fade to yellow and not stable until 72hours
Re: 20ps Dye-based inks fade to yellow and not stable until 72hours
- Subject: Re: 20ps Dye-based inks fade to yellow and not stable until 72hours
- From: email@hidden (Anthony Sanna)
- Date: Wed, 31 Jul 2002 21:42:31 -0500
>
The museum has not tried not tried using a mounting press on the photodye
>
10K prints, but if I was doing this type of thing to dry the ink I would be
>
aware of the press marring prints as heat is applied.
I guess that would be a concern when dealing with really big prints, like
the 44" x 100" example you brought up. In this case it would be similar
to dry mounting oversized photographic prints in two or more stages -
something I've done many times.
There are basically two problems to deal with in this instance. First,
applying full pressure to part of the print while the rest of the print
is unadhered, usually results in a visible hard edge where the paper
overlapped the platen on the first pass. This is the worst of it for
non-porous RC papers.
But for fiber-based paper stock, there can also be a small dimensional
change as the heated portion of the print shrinks ever so slightly over a
large area, causing a ruinous wrinkling along the platen line.
I've got a big Seal press, but I've mounted prints that have taken six or
more sections. The trick, at least what has worked for me, is to preheat
the mounting board to drive out any ambient moisture, and then make the
first passes with the print through the mounting press with no pressure
applied - just the weight of the platen on the print - and to keep the
times brief for each section. This dries and stabilizes the print, and
gently tacks it to the board. It will appear mounted, but it is very
peelable at this point. Once you've gotten this far, pressure can be
applied (not necessarily 100% locked-down mode) to finish the mount.
Oh, and one other important point. The print & mat should be sandwiched
between two other fairly stiff boards that generously overlap the platen
edge. The combination of an oversized print between oversized mat board
and a gentile hand should work.
Tony
Anthony R. Sanna
Vice-President
SACO Foods, Inc.
6120 University Avenue
Middleton, Wisconsin 53562 USA
email@hidden
www.sacofoods.com
1-800-373-7226
(608) 238-9101
(608) 238-8149 - fax
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