[pure-silver] Re: Free Kodak Film

Other manufacturers like Ilford used bags for their chemicals but the
bag(s) were inside a cardboard box which protected the bags against
mechanical damage.  Kodak did not use this method and exposure to
frequent handling of the unprotected bags may have contributed to the
damage.

Jerry

-----Original Message-----
From: pure-silver-bounce@xxxxxxxxxxxxx
[mailto:pure-silver-bounce@xxxxxxxxxxxxx] On Behalf Of Richard Knoppow
Sent: Tuesday, October 24, 2006 2:48 PM
To: pure-silver@xxxxxxxxxxxxx
Subject: [pure-silver] Re: Free Kodak Film



----- Original Message ----- 
From: "Koch, Gerald" <gkoch02@xxxxxxxxxx>
To: <pure-silver@xxxxxxxxxxxxx>
Sent: Tuesday, October 24, 2006 11:23 AM
Subject: [pure-silver] Re: Free Kodak Film


Good question!  I had assumed that there wouldn't be any 
indication on
the package since Kodak is merely farming out production. 
This is
different from the Agfa case where A&O is now fully in 
control.
However, if the package is different then maybe this is the 
indication.

Jerry

  I don't remember exactly when Kodak announced the new type 
of packaging, maybe a year ago but my sense of time is not 
good. The original package, the kind in use for many years, 
was composed of a paper bag with a lining of metalized 
plastic inside. When put on the market this material was 
supposed to be as impervious to air and moisture as the 
former vacuum sealed cans, it turned out not to be. I don't 
know the failure mode but susepect that the metalized 
plastic lining developed micro-cracks with handling. In any 
case, while the formerly used cans were often good for 
decades the paper packages were suspect after perhaps a year 
although one occasionally sees one that is very old and 
still has intact contents. The paper bags were sealed on all 
four sides. From hints dropped by Kodak at the time of the 
changeover I suspect the seals may have been a substantial 
contributor to leaky bags.
   The current method is a new, all-plastic, bag which is 
folded over eliminating one seal. I suspect these are made 
and filled in a way similar to cigarette manufacture. In any 
case, Kodak seems to be quite confident that this new 
bagging method is far superior to the lined paper bags. I 
can't testify since I have used only a few of them and those 
were mixed soon after purchase.
   I suspect, without any clear evidence, that the old 
vacuum sealed cans were the best packaging method. Probably 
that was replaced because of the economics, i.e., the paper 
bags were cheaper than cans, the packaging method more 
automatic and therefore cheaper, the packaged products 
lighter in weight hence cheaper to ship and store.

---
Richard Knoppow
Los Angeles, CA, USA
dickburk@xxxxxxxxxxxxx 

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