I'm pretty new to the screen printing scene, and just wanted to pick your brains about a couple of things..
1: I'm doing a print run of 100 posters at the moment, and after about 40-50 prints, the emulsion starts to break down in places, leading to lots of taping up of the stencil as I go along. Is this normal, or am I doing something wrong?
2: I wanted to ask about quality control - if there's the odd lil speck of ink in the wrong place, I tend to let it pass, but i'm just interested to see what you guys do - should every print be immaculately perfect? If there's a fingerprint on the reverse side of the poster, do you bin it or go with it?
Since you are new I well let you know that you can search the forums for any problem you are having. There are many threads devoted to your current problems and those that will follow. To the point, your emulsion should not be breaking down. The main culprits are underexposed emulsion, brand new screens (that need to be broken in) and the wrong kind of emulsion. No odd specks or fingerprint are allowed, sorry.
Hello fellow denizen of our tiny, cursed Island of fear.
I use Azocol emulsion and have never had any problems with it at all; it's readily available online.
As for ink marks or fingerprints, as long as it's not excessive I usually don't bin stuff like that. I print with my hands, so it's understandable that my hands my actually touch the things I am printing.
I am not, alas, one of those swanky no-hand printers.
"One day we'll all laugh about it as we try to warm ourselves around a barrel of burning posters, equals once more." - Crosshair