Switch to English Language Passer en langue française Omschakelen naar Nederlandse Taal Wechseln Sie zu deutschen Sprache Passa alla lingua italiana
Members: 69,741   Posts: 1,515,557   Online: 1012
      
Page 9 of 9 FirstFirst ... 3456789
Results 81 to 82 of 82
  1. #81
    Photo Engineer's Avatar
    Join Date
    Apr 2005
    Location
    Rochester, NY
    Shooter
    Multi Format
    Posts
    22,869
    Images
    65
    Yes, it is basically the electrostatic charging method used in Xerography. A charged wire over the film with a grounding plate underneath. The film passes between the two while a corona discharge takes place through the film. The top surface facing the discharge wire is then given a tooth that allows hydrophylic coating.

    This charge, if done properly, will last about 24 hours or less. I've coated within 24 hours of the charge and also in-line. Just remember that the corona discharge may appear faint, even in the dark, but is high in UV and will fog film and paper.

    PE

  2. #82
    hrst's Avatar
    Join Date
    May 2007
    Location
    Finland
    Shooter
    Multi Format
    Posts
    1,300
    Images
    1
    Thank you so much for this information! My idea was to use hot cathode (halogen bulb) to emit electrons and accelerate them using electric field, but what you describe is indeed just like in copier, which is quite simple. So I'll abandon the hot cathode idea, this is easier. Thanks!

Page 9 of 9 FirstFirst ... 3456789


 

APUG PARTNERS EQUALLY FUNDING OUR COMMUNITY:



Contact Us  |  Support Us!  |  Advertise  |  Site Terms  |  Archive  —   Search  |  Mobile Device Access  |  RSS  |  Facebook  |  Linkedin