How to soften hardened factory made emulsion for pyro or additional sensitizing

Discussion in 'Silver Gelatin Based Emulsion Making & Coating' started by Mustafa Umut Sarac, Aug 23, 2013.

  1. Mustafa Umut Sarac

    Mustafa Umut Sarac Member

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    As above.

    Umut
     
  2. Gerald C Koch

    Gerald C Koch Member

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  3. Hexavalent

    Hexavalent Subscriber

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    It is unlikely that an emulsion can be 'softened' pre-exposure and then have additional sensitization added.
     
  4. Ian Grant

    Ian Grant Subscriber

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    It used to be quite common for emulsions to have extra sensitisation for some highly specialised uses but modern emulsions aren't respomsive to those techniques.

    Prints that have been through a hardening fixer were often soaked in a weak Sodium Carbonate solution to soften the emulsion.

    Ian
     
  5. Tom1956

    Tom1956 Inactive

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    I would be very interested to know what kind of further sensitization Mustafa has in mind.
     
  6. Mustafa Umut Sarac

    Mustafa Umut Sarac Member

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    Hello all,

    I was surfing the APUG and some posts have made me think this. I posted an another post to Alternative section and Ian replied me with interesting information. He says this is between Carbro and Dye Imbibition. I have to search for Carbro.

    I think Ian Grant's post is extremelly interesting.

    Ian Grant ,

    Can you shed more light to your post please , is it applicable to films also ? And why modern emulsions are not responsive ? Which factory made emulsions interesting for additional sensitizing ?

    My interest is to make everything factory made and sold for few dollars , more interesting. I cant coat a film like Kodak at home. For example , making factory made emulsions softened and make them have relief with pyro developer , make inkjet printers print palladium etc are my interest areas.

    Tom , Ian Grant would answer your question better.

    Gerald , Thank you.

    Umut