Quote:
Originally Posted by sphere and ash
I’ve printed in salt and albumen, and it’s not at all clear to me what “exceptionally pure paper” is. I don’t think it’s true that the process requires a modern paper.
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Here, I found it for you:
"
Paper had to be thin, yet strong when wet. It also needed to be exceptionally pure--the slightest trace of foreign matter would react with other photographic chemicals and cause staining."
https://www.realorrepro.com/article/Photographic-Images
I'd love to know where you can find stacks of old paper that meets this criteria.