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Thread: UV alternatives

  1. #1

    Join Date
    Feb 2011
    Location
    North east england
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    16

    UV alternatives

    Hi has any one tried to print gum bicromates with the low engery UV tubes that are now available rather than the tubes usually used in this process.
    They look to give the same out put for less heat but not sure as I am just about ro start my gum printing.
    Al

  2. #2

    Join Date
    Feb 2011
    Location
    North east england
    Posts
    16

    Re: UV alternatives

    By low energy tubes I mean the type that
    Fit in a normal bulb holder was thinking of making up a box with 8 of them in sorry forgot this from last post

  3. #3

    Join Date
    Oct 2006
    Posts
    1,953

    Re: UV alternatives

    Quote Originally Posted by Albert.Adderley View Post
    By low energy tubes I mean the type that
    Fit in a normal bulb holder was thinking of making up a box with 8 of them in sorry forgot this from last post
    You need to determine what the peak spectral output the bulbs have. Ideally that will be in the range of 350nm to about 400nm. This is the wavelength range alt processes are sensitive to. It's best to do some research about UV lighting at this point before commiting to a construction project. On the other hand I do know some people have stated these type of spiral bulbs with an Edison base work well when used in a 8 or 12 bulb array. The trick is finding the proper bulb.

    Do you have any prior experience gum printing or printing other alt. processes? If not start out by sun printing until you get a feel for the process you are interested in.

    Good luck,

    Don Bryant

  4. #4

    Join Date
    Feb 2011
    Location
    North east england
    Posts
    16

    Re: UV alternatives

    Hi thanks don this is my first try atnalt process only done normal darkroom before
    Al

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