From: Judy Seigel (jseigel@panix.com)
Date: 02/09/00-10:21:25 PM Z
On Wed, 9 Feb 2000, Garet Denise wrote:
> >Since I have sized quite a few sheets, I am wondering if there is anyway I
> >can unsize the paper and redo the whole thing.
>
> Dave,
>
> Have you tried simply adding more size on top of the first coat?
Now that you mention it, I had a student who screwed up some sizing and
resized in a second coat -- which came out fine.
As for alkaline bath to undo the gelatin -- that's not what the chem prof
at school told me, in fact au contraire. He said that the alkali *closed
the links* of the gelatin, making it much less wash-offable, which is why
many of the old formulas for gum size have an alkali added (tho I forget
whether to the gelatin or the hardener).
For the enzyme: get a nice fresh pineapple. Cut off the skin and chop it
up, soak in water for a day... If you like, put it in blender now, or just
take gunky wet mass and put the paper in it. Leave for a day or so, the
gelatin is now gone. Or let's say I did that with factory paper --
emulsion came off entirely. I assume similar with home-sized paper.
Eat the pineapple.
best,
Judy
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| World Journal of Post-Factory Photography > "HOW-TO and WHY"
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