Gig Posters

Posters: 155619 | Bands: 135529 | Designers: 11506                 
   
       RSS Feeds

Username:   Password: 
Register      

Social Networking Activity                 



 Bands  Designers  New Arrivals  Top Lists  Forums  Buy Posters  Submit  Merch Store  Advertise  Widgets  Help

Results 1 to 6 of 6
  1. #1
    CCCP's Avatar

    Join Date
    Sep 2003
    Location
    Vancouver
    Posts
    2,102
    Comments
    797

    Default Blow-out around text on screens

    Fuck.

    I just burnt two screens, and both of them blew out when I was washing the emulsion out after the burn.

    The result is that the text looks smeared and illegible. Clearly I need to re-burn.

    I noticed that it happened in the same place on the screens (top left corner) which leads me to believe that that part of the screen isn't getting enough light.

    So, my plan is:

    - Expose longer
    - Rotate the screen 1/2 way through
    - Increase distance from the light source to the screen

    Any other suggestions?

  2. #2
    Premium Member
    steve w's Avatar

    Join Date
    May 2002
    Location
    The Meat Zone
    Posts
    15,663
    Comments
    2650

    Default

    increase distance.

    should be as far away as the diagonal measurement of the film.
    "I guarantee, the image will not be fade off and you will be pleasure it too. " - a bootlegger
    We need to print a tshirt "Avoid sucker effect!"-Fabio
    "fudge isn't sharp"-phoondaddy

  3. #3
    Premium Member
    Andymac's Avatar

    Join Date
    Aug 2003
    Location
    Van Isle BC Canada
    Posts
    11,720
    Comments
    278

    Default

    Hi Jer

    increase your distance and time to ensure you are getting full coverage. I'm assuming you have a good light source.....if the emulsion was slimey, you need more time. Be careful when you rotate you don't move the screen (or are you going to move the lamp?)

    You might also have coated the screen when the corner was still a bit damp, this will cause the emulsion to screw up in one area.

    yer pal,

    squirrelboy

    aka
    Andymac

    services www.squeegeeville.com
    equipment www.tmiscreenprinting.com

    Todo es empezar.

  4. #4
    CCCP's Avatar

    Join Date
    Sep 2003
    Location
    Vancouver
    Posts
    2,102
    Comments
    797

    Default

    Thanks Andy.

    I increased the distance, which seemed to help. I think I need to increase my exposure time; I suspect the bulb in my lamp is losing power in the important wavelengths. I'll do a set of test strips this week.

  5. #5
    Premium Member
    Andymac's Avatar

    Join Date
    Aug 2003
    Location
    Van Isle BC Canada
    Posts
    11,720
    Comments
    278

    Default

    Oh yea, definately more time...if the distance increases, the time increases exponentially. (inverse square formula*)

    *don't know what it is, but I thought it sounded kind of teckie...As I understand it, if you double the distance, the time goes up 4 times.

    Just finished a workshop up in the Yukon, were using a borrowed metal halide 1000watt at 28 inches on to 225 yellow mesh, 1 minute 45 seconds, 1 minute 15 seconds on 160 white.

    [/i]
    Andymac

    services www.squeegeeville.com
    equipment www.tmiscreenprinting.com

    Todo es empezar.

  6. #6

    Join Date
    Jun 2004
    Location
    chicago
    Posts
    3
    Comments
    12

    Default

    how does one go about printing a series of test strips?

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •