trendland
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- Mar 16, 2012
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That would be a real real smart procedure. If you have technical parameters to design such procedure get save to hold a patent on this procedure.I doubt that they are using a smaller, slower line. What I hope is that they have found ways to produce multiple emulsions in the same coating run. Instead of coating an entire 6000 foot roll of, say Tri-X, they coat 1000 feet of the roll as Tri-X, 1000 feet as P3200, 1000 feet as TMY and so on. I could imagine this being done by concentrating on a core set of "grains" and dyes and then switching them in and out as necessary. These films are all multi-layer today so possibly they could assign "grain type" to layers and mix and match. No doubt there would be waste between the emulsion switches but surely that could be managed.
I could also guess that they could produce B/W films on a roll and color films on a roll but no combine the two. Have often wondered if part of the delay with Ektachrome has been to rework Ektachrome to use may of the same materials as used by Vision, Portra and Ektar but make them into a reversal film.
After this come in contact with manufacturers - because till today there is no way on that production method.
Your idea would save enormious money and would indeed revolotionize film production. But it seams to be not possible. To change the type of film, to change just the emulsion during coating process is indeed the most expansive point. If a machine is running with best parameters (after optimized calibration) it is the cheapest way to let it run as long as possible. This is the reason of exploding cost during production from my point.
(to stop emulsion backing after some days [ and not after a run of 185 days 24/7 - with inspection and maintenance ]
with regards