Jeff Dean wrote:
>I'd like some feedback from other reduction-style printers. I am particularly
>interested to hear from artists working with oil-based inks.
Well, you may not be particularly interested in this, as I've been
primarily printing aqueous for some time now -- that'll solve all the
overprinting problems you will continue to have reduction printing with
oils, though... Oil based inks (by design) stand up on the surface, so
after a few overprintings, you are no longer printing on paper but rather
on ink, and the surface which develops is usually nether pleasing nor
conducive to overprinting... Perhaps there are 'oily' printers out there
who are able to overprint repeatedly, but I doubt it... That's a realm
limited to aqueous, I believe...
>a) I only use up to 7 colors, because the previous layers of ink dry and
>prevent the ink from adhering. I've heard of some artists printing 20 or
>thirty
>colors in a reduction cut, and I'd really like to know how THAT happens.
>Right
>now, I'm finding that I need to all 8 colors in a single day, because if I
>wait
>a day to do a color, the ink has dried, and my next color won't adhere. Any
>advice for a guy who'd like to do one color on Friday, and the next the
>following Friday?
I've overprinted 7 colors with litho inks (from litho plates) -- but I
generally must let the prints dry LONGER between each printing, not
shorter, or you run into viscosity problems -- that begins when the wet ink
can't decide whether to stick to the wet ink already on the paper or to the
wet ink on the block... That can be very interesting and controllable in
viscosity printed intaglio (but that's not what you're into, I don't
think), so you'll have better luck, I believe, if you'll allow the printed
inks to set up quite a lot before printing the next color... After three
or four overprintings, you ought to give it a week or three before
proceeding... The next problem you'll have is that the ink film has quite
a bit of thickness, and your print surface will become more and more pebbly
and subsequent overprintings won't go on evenly...
>b) One thing that has helped is to thin my inks with linseed. It works, a
>bit, but I just feel wrong doing it.
Others can help you with good extenders for oil based inks (Barbara Mason,
John Center? You there?), but linseed oil is almost certainly not the
material to use -- it'll bleed through the paper and eat it up -- after 10
or 20 years your prints will be falling apart -- unless you completely seal
the paper surface with something first -- gesso, or rabbit skin glue will
work, but that will not help your absorbancy issues...
>c) I use a heavy-weight stock paper, and print dry. However, I just read the
>directions for printing with dampened paper, and during my first test with
>it,
>found it to be pretty amazing. I'm just wondering if anyone has advice on
>reduction printing with regards to registration.
Dry paper tends to stretch during repeated printing -- calendar it first by
running it through the press (if you're using a press) several times before
printing... Damp paper expands as moisture increases and contracts as it
becomes drier, so you'll want to maintain a more or less constant moisture
content as your printing progresses... The reason it seems to work better
damp is because the paper is softer when damp and so conforms to the block
surface with less pressure. For registration techniques, try
www.google.com -- look up "t and bar registration printmaking", "pin
registration printmaking", and "kento registration" -- you can read all
about kento registration (corner and side) in www.barenforum.org in the
encyclopedia. I've used all these methods pretty extensively (there are
others, too) and kento is the easiest and most certain for me (physical
registration of corner and side of sheet in carved recesses right on the
block or on a piece the blocks fit into) and works very well at least up to
20x30 inches or so.
Hope you find something here that will help! It's be nice to see some of
your work -- if you have any images on line, let us know where to look,
OK? Good luck!
Mike
Mike Lyon
Kansas City, Missouri
http://mlyon.com