From: Diana Bloomfield (dlhbloom@mindspring.com)
Date: 12/28/00-09:19:12 AM Z
Yes.. Judy's distinction between a printing out process and a printing out
paper clarified things for me as does your own assessment of the distinction
between an emulsion and a chemical solution. I had not considered that.
Anyway, thanks for spelling all this out.
By the way, I have your book, Sarah, which has been incredibly helpful to me.
Thanks again.
--Diana
Sarah Van Keuren wrote:
> On Wed. Dec. 27, Judy Seigel wrote:
>
> > An EMULSION, on the other hand, such as ziatype or whatever, mixed by us
> > or perhaps even available in liquid form to be coated on whatever paper
> > by the user, would more accurately be a printing out PROCESS.
>
> I agree with Judy's distinction between a printing-out-process and a
> printing-out-paper. A distinction I make that Judy may not make is between
> an emulsion and a chemical solution. P.O.P. with silver chloride salts in a
> gelatin coating is for me an emulsion. Gum bichromate with pigment suspended
> in sensitized gum arabic is also an emulsion. The trick with syrupy
> emulsions is to attach them to the support but to keep them on the surface
> of it. Cyanotype, vandyke, palladium, platinum and ziatype are all chemical
> solutions, watery mixes that soak into the fiber of the paper. I think it
> helps those who are learning alternative processes to understand this
> distinction. Does anyone else find this a helpful distinction?
>
> Sarah
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