screen printing > Screen Making

Undercutting and detail loss on screens. Quick explanation.

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squeezee:
English modesty...

tpitman:

--- Quote from: Dottonedan on April 11, 2011, 11:43:43 AM ---
--- Quote from: squeezee on April 11, 2011, 05:50:27 AM ---It's no rocket science really, if you have a diffuse light source your mask will be less effective.

--- End quote ---

Never tell the audience "it's easy" or "it's not rocket science". A magician never says "It's easy". It's all actually VERY HARD. Extremely difficult and challenging. Many years of trial and error.

You'll make everyone think we're just ordinary people. ;D

--- End quote ---

You mean there's more to screenprinting than some stoner with a ponytail pullin' a squeegie???

squeezee:
clearly not  ;)

Fresh Baked Printing:
For cap film users, another good reason to remove the plastic before exposing. Spot color no big deal to leave it on but on detailed or tight registers, removing the plastic will help with undercutting.
Conversely, but less so, there are times when you want to leave it on to encourage undercutting.
Also, depending how dry the ink is on your positive, leaving the plastic on can help prevent the positive from sticking to the cap film.

Chadwick:
Vacuum blanket is key.
Even when using metal halide with diffusion blacklight above the main source,  it can still fail.
Square and level screen-frames kinda help too..heh

I think the biggest problem most face though, is output quality of positives.
Get that right, and everything else, while not simple, will still go much smoother.

Not trying to de-rail the thread, just .02 that relates.
Cheers.

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