ADOX COLLOIDA PHOTOGELATIN

Discussion in 'Silver Gelatin Based Emulsion Making & Coating' started by ADOX Fotoimpex, Mar 23, 2013.

  1. ADOX Fotoimpex

    ADOX Fotoimpex Partner Partner

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    colloida.jpg

    We now have two versions of ADOX COLLOIDA photogelatin.

    One is the product which has been out for almost two decades now: A photographic coating gelatin in order to make an under- or overcoat in the work with liquid emulsions. This is now called ADOX COLLOIDA "R".

    Next to this known product we now have a true precipitation gelatin (Ansatzgelatine) to make film or paper emulsions.

    This is called ADOX COLLOIDA "P".

    We placed them in different sections in the webshop but I wanted to announce this here as well so everyone knows which is the right product for him/her.

    If you own a bottle of COLLOIDA without "P" or "R" it is coating gelatin!

    Best regards,

    Mirko
     
  2. AgX

    AgX Member

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    I guess "P" stands for precipitation but what is the meaning of the "R"?
     
  3. ADOX Fotoimpex

    ADOX Fotoimpex Partner Partner

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    In this case "R" as in "Regular". Could have been "S" for supercoating or "U" for undercoat or a simple "C" for coating.
    "C" would have probably been a good choice as well but now the labels are printed ;-)

    Mirko
     
    Last edited by a moderator: Mar 23, 2013
  4. anikin

    anikin Subscriber

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    Mirko,

    I'd love to buy it. Do you have a distributor in USA?

    Eugene.
     
  5. ADOX Fotoimpex

    ADOX Fotoimpex Partner Partner

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    Yes we do: Freestyle.

    They don´t carry this item yet but asking them to take it on is always a good idea ;-)
     
  6. Photo Engineer

    Photo Engineer Subscriber

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    Mirko, congratulations.

    Best wishes with the launch of these products.

    PE
     
  7. JOSarff

    JOSarff Member

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    Mirko:

    Do you have a distributer in Canada? Thanks

    Joe
     
  8. Jerevan

    Jerevan Subscriber

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    So - what does this mean, in practice? That the "R" version is useless for making emulsions? How does a precipitation gelatine differ? Higher/lower bloom, or other things that differ?
     
  9. dwross

    dwross Subscriber

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    Mirko,

    Product education might increase sales.

    fwiw,
    d
     
  10. ADOX Fotoimpex

    ADOX Fotoimpex Partner Partner

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    You can use it for precipitation but if you want consistant results you should choose the precipitation version. Basically P is the selction from the selection. The purest batches which have a narrower difference in bloom index get chosen as precipitation gelatin whilst the specs are not so strict for coating gelatin.
    I think the bloom index is also shifted a bit because from the coating gelatin usually the top layer is manufactured which is on one end of the viscosity bandwidth of a coating package. But this can also be adjusted by other means. I don´t really know this last point for sure.

    I am sorry for the late reply but I didn´t know this thread had developed later on.

    Mirko
     
  11. Jerevan

    Jerevan Subscriber

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    Thank you Mirko for the answer. :smile:
     
  12. Philippe Berger

    Philippe Berger Member

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    Mirko or other Carbon Printer,

    What is the best ADOX COLLOIDA photogelatin R or P ? for the Carbon TIssue for te Carbon Transfer Process
    Thank you for you respons to mineurdecharbon@skynet.be

    Best
     
  13. chrisaisenbrey

    chrisaisenbrey Member

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    Hello Philippe,

    As far as I understand the ADOX COLLOIDA P is cleaner. For reproducible silver gelatin emulsion making this is important since the emulsion reacts very sensitive to impurities. And you want to add the "impurities" yourself in a controlled manner.

    For carbon printing this is not so important. More important is the “strength” of the gelatin. I get my gelatin from:

    http://www.phototypie.fr/search.php?tag=gélatine+photo



    By the way congratulations to your color carbon print!

    Chris
     
  14. Philippe Berger

    Philippe Berger Member

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    hello,

    Thank you for the informations for the photographic gelatin. I don't know this website

    You usu this for your Carbon

    Thank you for my Carbon Color

    Best

    Philippe
     
  15. chrisaisenbrey

    chrisaisenbrey Member

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