Homebrew PCBs

> "BTW, the screen printing emulsions are negative acting so you 
will
> need positive films emulsion side up."
> 
> So I guess you are saying that my laser printed PCB patterns (on
> plastic sheets) are positive as is, and I have my terminolgy
> backwards. So I can use these with "negative acting screen printing
> emulsions" to get the silk screens I need to put resist ink on the
> copper which is not to be etched?
 

I would think that you want a negative to expose your screen which 
would be the trace pattern would be clear and all other areas dark 
just like a film negative would be.

Ben