First of all - love this site. I have learned SO MUCH from everyone so far. I've been having exposure issues. I have tried searching the forums and have tried a bunch of suggestions on here, still having some issues, SO I figured the time has come to post! Basically, I like to print finely detailed posters and prints. However, I am having some issues with my exposures. It seems that I lose details even when slightly underexposed and I am getting snail trails from the unexposed emulsion hanging out in the screen - annoying! I have tried doubling up transparencies and this hasn't seemed to work very well - I'm still losing fine details and the fine lines that do show up are too thin, or the halftones are too small. I often have to use the pressure washer to get little tiny areas which, I know, is a terrible idea, but I don't know what else to do.
My setup - I have a 1000 w metal halide lamp, 230 mesh yellow screens and an epson 1400 that I print onto victory factory 13 x 18 inkjet transparencies. Transparencies are smooshed against the screens on the floor against black felt covered foam with a piece of glass. I print my seps as pdfs from acrobat, make sure to set it to a high quality matte print which seems to lay down the most ink. Again, I usually double these up but I'm still having problems. Everyone seems to sing the praises of the 1400, but I'm wondering if RIP software would do the trick? I am using Ulano TZ emulsion but am considering buying a couple of other types and testing them out. Thanks in advance.