On Apr 11, 2006, at 9:30 AM, Dave Soemarko wrote:
> Well, actually even the hardened
> gum is soaked up with water at that point, so the water will
> continue to
> develop the surrounding gum. Sort of like if you put a piece of ice
> on jello
> versus you put a piece of ice on gum. The first case will have no
> problem
> whereas the second will make a mess.
Dave,
This makes some sense to me, and may provide a potential explanation
of why this "melting" of what seemed like hardened gum sometimes
happens when printing on unabsorbent surfaces (I've never seen it on
paper, but I've seen it on yupo as well as this experience on
mylar). Perhaps when the hardened, but still wet, gum is on a paper
support, the water sinks into the paper, leaving the hardened gum
intact, but on an unabsorbent surface it has nowhere to go so it
affects the hardened gum around it.
Katharine
Received on Tue Apr 11 11:45:13 2006
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