Fungus, or mold, lacks chlorophyll and is enhanced through improper storage.
One of the best ways to inhibit it originally is to use a hardener in your
fix. Generally with color, particularly E6 there is formalin (37%
formaldehyde) of a small proportion in the pre-bleach or conditioner step.
What this does is to make the emulsion more compacted, or hard,
therefore inhibiting moisture.
Moisture is the culprit so storage in cardboard or wood containers is
not smart. Also do not store slides in a damp or high humidity environment.
Fungus often produces threads that reach out and are embedded in the
comfort of the gelatin. If caught early they might be removed w/a cotton
swab but if there has been a period of time they are most likely set into
the emulsion proper and have done damage.
Products that might remove them are not hospitable to the analine dyes
in the chromogenic processes.
this is why a scanning and digital repair is the best way around this
problem.
Jack Fulton
>> Fungus, unfortunately, turns out to be very damaging and
>> very hard to get rid of.
>> ---
>
>
> But where does it come from? Are there any conditions/parts of the world
> or the country where it's more likely? Are there any "normal"
> precautions? Is it common? Is it catching? Can you fumigate ? Anti-fungus
> candles? Recitations?
>
> J.
Received on Thu Dec 18 00:07:49 2003
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