<<<< And, another question, doesn't all this processing put
a lot
of
stress on the old paper fibers, resulting in a poster with far weaker
structural integrity than when you started (and no linen to reinforce
it)? >>>>
Yes, absolutely your stretching the poster out after the bath to get
the folds out. No doubt that it weakens the folds.
Dario.
Dario Casadei wrote:
Dario Casadei wrote:
You are doing fine, stop right there!! No you don't remove the starch.
It is such a thin layer that you don't see it or feel it and your
poster is roll able.
Holytex is polyester, your paste is vegetable based so it's made to
tack to paper. It will not tack to Holytex, however the starch will
give it that extra suction needed when drying up. And then simply peel
the Holytex off. It's nifty and I am doing 10 right now for a client.
But I still think Linen is a better way to go for your posters, simply
because it is a 101 % expectable conservation technique by all
standards.
And it will protect your poster far better than anything.
And for anything else there's Advil.
Cheers my friend,
Dario.
JR wrote:
This new "starch backing" concept is making my head hurt.
Can someone please explain to me... in simple terms... how
exactly how this works and permanently removes wrinkles? As I think I
understand it, you clean and de-acidify the poster in a bath, then
instead of pasting it onto linen to take out the wrinkles, you put a
layer of starch (paste) on the back of the cleaned poster while it is
still wet from the bath and then stretch it (gently, I presume...)
That way it dries without wrinkles and no backing. OK, fine. But then
what? Don't you have to remove the layer of starch from the back? If
you don't, won't the poster be stiff and break like a cracker? But if
you remove the starch (with water, right?), then how do you prevent
wrinkles from being reintroduced by the removal process? Doesn't
applying enough water to remove the starch cause the paper to wrinkle
again?
And, another question, doesn't all this processing put a lot
of
stress on the old paper fibers, resulting in a poster with far weaker
structural integrity than when you started (and no linen to reinforce
it)?
-- JR
-----
Original Message -----
Sent: Friday, December 23, 2005 14:27
Subject: Re: [MOPO] Wrinkle Cure?
Hi Alfredo,
Starch backing would be a great choice if you poster only need cleaning
and you wish to leave the linen out.
As you can see you have already gotten some good suggestions what to use
Like oil of Uley and so on. So I'd like to add to that, make sure that
you get an archival cooked paste from scratch either Rice or Wheat
starch and not Shure stick 800 wall paper glue, It's sold by the gallon,
cheap, quick and easy to work with, but it tack poorly and it molds
over. It contains fungicide and other chemicals that has not been test
properly on vintage paper, so long term effects are not know. I did and
open air study, I wanted to know what all the back door fuzz was all
about. I cooked my usual paste, and made a batch of Archival Methyl
cellulose by Lineco and I bought a small bucket of Shure stick. I let
them sit in 3 independent jars for two day, no lid!! after that I
introduced a contaminate brush to each paste. after two day there were
mold growing in the Shure stick wall paper glue. I don't think the
fungicide and chemicals is there to protect your wall paper, more so to
protect the paste its self. and it's not very impressive!!
Best Regards,
Dario.
alfred zelcer wrote:
>Would like to know what the best treatment for a very
>wrinkled one-sheet is without going all the way to
>linen backing. Would an acid bath do it? Or is there a
>treatment that works the equivalent of a pressing?
>Thanks all, and a merry Holiday to all too!
>
>AlfredoZ
>
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