Non fixing bleach for color paper

Domin

Member
Joined
Oct 11, 2006
Messages
204
Location
Warszawa, Po
Format
Med. Format RF
I need some bleach (not bleach-fix) for color paper. What are the options?

I checked some suppliers here and they do not have it.

What are my options short of mixing it myself? Ferricyanide bleach? Diluted C41 bleach?
 

Mike Wilde

Member
Joined
Aug 10, 2006
Messages
2,903
Location
Misissauaga
Format
Multi Format
my understanding

Here we need a rehalogenating bleach - take the silver and re- convert it back to silver bromide. Then the next step is fixer, or if really adventurous - redevelop for a colour and b&w picture on the same paper - or develop in colur agian for more contrast, etc.

C-22 bleach might do the trick - 80g K ferricyanide, and 20g K bromide per litre. It does c-41 film in about 2.5 minutes at 38C; I use this for c-41. Treat it as toxic waste and take to the hhw depot when finished with it. It can be re-used. I keep my 'out of spec' c-41 bleach, and after filtering it a bit, use it on b&w prints that are slated for a redeveloping toner, like catechol etc.
 
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