I now regret having thrown away many of my initial gum/casein experiments
recently. The papers were all some months old.
All the papers which I sized for multiple exposures were hardened in
Glyoxal, without any bath afterwards, before coating the paper.
Reading this thread, I remember now that I noticed a stain on those papers
which I had sized, but not used for some reason. On the papers which I
coated and developed, however, even on those with only one coat, I don't
remember having detected any stain, even though I checked them all
carefully before discarding them (because I wanted to learn from initial
mistakes).
Could it be that a thorough water bath helps against glyoxal stain?
Lukas
Received on Fri Oct 20 02:59:05 2000
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