U of S | Mailing List Archive | alt-photo-process-l | Re: 1st tricolor on Masa. Impressions...

Re: 1st tricolor on Masa. Impressions...

Yep, it all makes sense, which makes me feel better. (I don't like
it when things don't make sense.)

But there's another part that just occurred to me, something I'm
doing that puts stress on the paper and could well be adding to this
problem. The paper I've been using for the last couple of years
(Arches bright white) is very crisp and tends to be prone to air
bubbles that spoil the print if they're left for more than a few
minutes (unlike other papers I've used where the circles from
occasional air bubbles are easily rectifiable; a few more minutes in
the wash and they're gone) so I've developed some habits designed to
ensure no air bubbles. One of them is that when I first put the
paper in the water, I dip it in face up and swish it around for half
a minute or so, manipulating the paper to wash water repeatedly
across the print until the dichromate is rinsed out and the face of
the print is wet through; then I turn it over and carefully rest it
face down. I realized that I've done the same thing with the masa
paper, since it's such a well-established habit I do it without
thinking. So if there's another reason beyond just the stock being a
lighter stock, it's probably that I need to knock that off when I'm
working with the masa and just introduce it gently into the water,
face up, and leave it alone except for occasionally washing some
fresh water across it (by moving the water, not by moving the paper).

One of those d'oh kind of things.

Thanks everyone, for thoughts,

On Oct 12, 2008, at 5:12 PM, Loris Medici wrote:

13 Ekim 2008, Pazartesi, 2:33 am tarihinde, Katharine Thayer yazmış:


The thought about my paper being lighter/thinner is an interesting
one, if Keith hadn't piped up and said that he also finds the paper
extremely difficult to handle when wet, I would think that explains
the difference between my experience and others, but as it is I'm
inclined to think it's a function of the size of the paper, since
Keith and I are printing at similar paper sizes.


Could be, I'll see it for myself (in gum printing context) as soon
as I
purchase: two large sheets of heavy glass (to sandwich the paper and
negative in between), a high density thin polystyrene foam sheet (for
cushioning / even pressure distribution), matte black spray paint (for
painting the light colored foam sheet so that it doesn't reflect
UV), and
small C-clamps (to fasten & apply pressure to the assembly) in
order to
home-build a large contact printing frame and test the paper in large
sizes. (I already need that for large prints on Fabriano.)

BTW, you may have missed that I mentioned before that I soaked that
for long times, at full and half sheet sizes (but not for gum
not caring much about delicacy in handling (albeit I wasn't
heavy handed too) w/o any cracking. On the other hand, I remember
mentioning that the paper won't do well after 2 gum layers (if I'm not
mistaking) being as inexperienced as I am, I easily did three coats
without any problems (apart uneven coating). Those facts still
makes me
think that the difference may be caused by the relatively weaker
weight of
your stock. (Your 70gsm versus my 86 gsm.)


I did find that I needed to add water to the coating mix, not because
the coating needs to be thinner, but because the sized paper (smooth
side) didn't coat as easily -- brush would drag and grab on the sized
paper and make it difficult to smooth the coating out.  Which is
interesting because unsized, the paper coats very smoothly and
nicely.  So I followed Keith's suggestion and added water.  I did
find that the more liquid coating would go all wavy as I was coating,
but because the paper is so thin, you can coat across the waves
without causing any unevenness in the coating.


Thanks for the insight. I haven't experienced any dragging myself
but felt
the coating wasn't even enough with thick emulsion. Did you also
that the paper needs much less emulsion (about 1/2) than Fabriano (or
similar sturdy / heavy papers)? I'm sure thinner emulsion will do the
trick in the future, combined with getting more and more used to the