That's good to hear, the prognosis is improving. I should've been more thorough in my OP and stated b&w negatives but didn't get the pics til later.
The lack of sleeves may have been helpful, in fact. At least, the gelatin hasn't fused and/or ferrotyped against the sleeves. Such damage is often irreversible.
I also see these are B&W negatives, which means they're inherently a lot more resilient than color negatives.
The moral of the story, put the negatives in sleeves, keep the cat away. Cats........I've never been a fan of cats.
I am confused. Was it an accident or was the cat making a judgement about the composition?
I doubt alcohols would help, except intheir limited capacity as surfactants, as urine is water based and should be water soluble. I'd certainly add photo flo to the water.
A weak bath of acetic acid might be worth a try as it is decent at fighting odours in general household use.
I wouldn't be surprised if some direct sulphide toning happened in the urinated areas. After WWII, when photographic supplies were hard to come by, a recommended alternative to polysulphide toning was a bath of urine to increase longevity(true story).
a recommended alternative to polysulphide toning was a bath of urine to increase longevity
a recommended alternative to polysulphide toning was a bath of urine to increase longevity(true story).
So Ralph, if the negatives are unevenly toned would it help if another cat is brought in to finish the job?
After WWII, when photographic supplies were hard to come by, a recommended alternative to polysulphide toning was a bath of urine to increase longevity(true story).
Ah indeed, urine was historically used in leather tanning I believe. Does it do anything by itself or does it need to be combined with tannins or some such, does anyone know?Ah, the uric acid would just aid in the emulsion hardening.
Ah indeed, urine was historically used in leather tanning I believe. Does it do anything by itself or does it need to be combined with tannins or some such, does anyone know?
So Ralph, if the negatives are unevenly toned would it help if another cat is brought in to finish the job?
. The cat pee is old and dried on the negatives.
Maybe Kodak/PhotoSys should start packaging a cat along with each bag of Kodafix. The cat can then be squeezed out into the fixer if a hardening fixer is required.
I always wondered about this - the feasibility of sulfur toning using urine. I never tried it. Perhaps I should? I doubt it'll do all that much. There's a small amount of urea in urine, but as a direct toner, it's virtually inactive.
Apparently in the dark ages urine was collected (poor people didn't have a pot to piss in) and sold for tanning hides.
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