[Jewelry making - Article 00153] - Re: [Orchid] Cleaning jury slides

[Margaret Malm]

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    Alright, Eric.  Here goes. 

    1).When you wet the emulsion, it swells, and becomes very delicate
    and easily damaged, as you said. There is nothing you could use to
    make an "application" (i.e. rub it with -- just wetting it would not
    do athe job) that would not abrade or otherwise damage it. (BTW, some
    photographers, looking for wild effects, wet the emulsion and then
    use their finger to move the emulsion around on the base!) 

    2) The image is suspended in gelatin, and the gelatin  becomes quite
    sticky. Which will cause foreign particles (even including dust in
    the air, and small particles in the water) to adhere to it, or more
    likely even embed themselves in it, and be quite impossible to ever
    remove, especially once it has dried. And, when it dries, it will
    probably also leave a visible water spot or spots. 

    3) The Photo-flo may help prevent the water spots --.  And it would
    probably work on removing fingerprints from  the base, true. But it
    would be almost impossible to clean the base with a water-based
    solution without also getting the emulsion side wet, at least
    partially.  And, then, even if you succeed in doing this, there still
    remains the problem of cleaning the emulsion side. 

    4) So, with all of this going against wetting with water, why do it
    that way and probably just make matters worse, when there are much
    much simpler, much much better, and much much much safer alternatives
    that really work well -- i.e. the film cleaning solvents?? 

Margaret


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