Some more interesting items at the Internet Archive.
An interesting film describing in some detail silver halide crystals:
http://www.archive.org/details/Alchemis1940
(there is also part 2 of this movie also available at this site).
Emulsion.
This is an SPSE publication of over 400 pages, standard textbook size. It contains 19 chapters written by the top experts in their fields from each company. So, this crosses company lines, but nevertheless it is a good tutorial for anyone that can get their hands on it. Of course it contains no confidential or proprietary information.
That is one limit that will be of importance historically.
PE
Ron,
Would this proprietary information be lost if Kodak goes out of business and closes all of its film making operations?
Sandy
Sandy;
Probably a lot of manufacturing secrets would be lost and a lot of procedural operations would become obscure. For example, the details of a dispersion are published in many places, but I doubt if anyone could make one without weeks of trial and error unless they were taught. Same goes for emulsion making.
Some material may be turned over to George Eastman House. Some has already been placed in their hands, but the usage of many items is obscure.
I have to "interpret" Wall and Baker for example, to get any sort of useful information out of them regarding emulsion making, and many chemicals they use are obscure today due to name changes.
They measure many solutions as being made in "degrees Baume" but no one has a conversion table that I know of. None of my handbooks or texts cover it.
So, it is going to be tough to make up gelatin to a Kodak internal standard in "RBT" units which are entirely arbitrary.
Sorry for this long answer, but the bottom line is that they may be lost or may be published. If published, they may be so obscure as to be useless or nearly useless.
PE
As it is though, without any of my associates interested in doing this type of work and schools not being interested in it, we are in a devolutionary period in analog photo history in which we will probably devolve and normalize at about the 1920s era if we lose Kodak, Ilford and Fuji. And, believe me, times are tough for all 3 of them! As it is, I could go to the Formulary and teach a different workshop each week all summer but that will not be. It is just too stressful and time consuming let alone the fact that there may be no students for many of those courses or that it might strain the resources of the Formulary.
PE
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