Note that the interior "wrap" used for Kodak film is a laminate. This
provides a clean, non-static generating, light tight, film holding, and
humidity barrier. A laminate is necessary to achieve all the needed
characteristics. The film holding characteristics prevents the sheets from
sliding against one-another that causes minute scratches. This is can occur
on long flight air shipments.
I suggest opening your film carefully so the wrap can be reused. Placing the
wrap with unused film in a foil bag sealed with a moisture barrier tape
will protect the film from moisture even when the room has high humidity.
Plastic bags will slow water penetration but will not stop it. It is best
to use a laminate. Sealed foil is better than plastic bags.
Kodak film is packaged at about 72F 50% RH. The entire Kodak film
finishing production area is maintained at these conditions year-round.
When I went from outside to inside in the winter my glasses instantly
frosted over. On sub-zero F days I would get ice on my glasses.
Sadly, film that sticks together will probably exhibit a defect we called
"ferrotyping". This is caused by the emulsion-side overcoat's gelatin
conforms to the gelatin film backing of the adjacent sheet. This results in
the emulsion having a very glossy surface as the name suggests. This is
usually non-uniform. At the interface between the ferrotyped and undisturbed
areas a line is formed so images will require re-touching. With roll film
ferrotyping can reach an extreme level forming what we called a "hockey
puck". When unrolled it "snaps, crackles, and pops".
Robert ShanebrookMaking KODAK FilmRobert Shanebrook - Kodak Film - Photography
- Photographic Film Manufacturing - Rochester - Ny
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Robert Shanebrook - Kodak Film - Photography - Photographic Film Manufac...
Book: Making KODAK Film , The Illustrated Story of State-of-the-Art
Photographic Film Manufacturing by Robert...
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On Friday, July 13, 2018, 4:46:36 PM EDT, `Richard Knoppow
<dickburk@xxxxxxxxxxxxx> wrote:
Not had this problem. Los Angeles, while dry much of the
time, can have very tropical humidity. You might try storing the
film boxes in sealable freezer bags. You can put a bag of silica
gel in the bags to absorb excessive moisture. Silica gel can be
found with a web search. Its renewed by baking it.
On 7/13/2018 1:32 PM, Shannon Stoney wrote:
I just went out to my darkroom to load some film in holders, and found thatRichard Knoppow
there were about 8-10 sheets literally glued together! This is the first
time this has ever happened. I didn’t think it was THAT much more humid out
there than in the house! I run the AC a bit in the afternoon in the house,
and in the darkroom when I’m working there. The darkroom is a slab on grade
building and it stays relatively cool. It doesn’t SEEM all that humid out
there.
I plan to start storing film inside, but I wonder what other people do in
humid areas to prevent this, besides running your AC constantly.
