Re: registration of negs. for Gum
Russell Cothren (rcothren@comp.uark.edu)
Thu, 2 May 1996 10:02:51 -0500 (CDT)
I used to strip for printing press and we made regestration tabs out of
mylar. about .005 - .007 of an inch for the guage. just cut the mylar into
strips about 3/4" wide and 1" long and then punch a hole in one end for the
pin and tape the other end to the neg. Some times we would punch the neg
and then put a punched mylar tab on top of that to reinforce it. Print
shops with large presses usually have a large punch to punch the printing
plates. They also cut mylar strips about 2" wide and 30" long and pung
those too. Then you have a long punched strip that matches the plate.
Confused? ______________________________________
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Find a local print shop and ask to see their hole punch for the printing
plates and film. Ask them to let you observe how they do it. Then maybe
all of my gibberish will make some sense. One thing though. If the shops
printing press is a hieldeburg the hole pattern will be a little bit
goffey.I hope this helps.
>When printing a gum print that requires 4 or 5 printing cycles, what is a
>good way to keep registration in the image? I'm using 11 x 14 paper negs.
>I've tried the" push pin in the holes" method with film negs. before but
>the holes tend to get enlarged and sloppy.
Russell Cothren
Photo Editor
University Relations
University of Arkansas
501-575-3970