- Sep 1, 2008Iohannes
The relief structure of photopolymer is unlike cast metal type and
unlike photomechanical chemical etching.
The longer the exposure latitude, the shallower the relief between
surface imaging. Isolated elements, dots, lines, would thus have less
structural support. But an isolated line would have better support
than an isolated dot.
I have put some images up in the photo section here
that show microphotography of halftone plates at 150lpi. Note the
variance in slope and relief based on different exposure latitude.
> But I'm not sure...
> Can fine line size be smaller than isolated dot size?
> E.g. it tech specs of Toyobo Printight plates shown
> lines 0.1 mm (.004"), dots 0.02 mm (0.0008")
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