Re: Could someone summarize that gum up or down discussion?

Yo tambien re Joe's summary below. A combination of knowledge,
curiosity, hot air,
puffed wings, elegant prose, historical elegies and high-faluting
jargon got my mind
in a spin, my heart in a dilema and knowledge in a quagmire. Please
do summarize.
It'd aid us all methinks.
Jack Fulton

On April2006, at 5:52 PM, Joe Smigiel wrote:

> Could someone please *succinctly* summarize the gum hardening from the
> top down issue for me?
>
> I skimmed many of the posts but I missed seeing anything that would
> point to hardening from the bottom up. I have to admit my attention
> span isn't what it used to be and that I lost interest in reading the
> off-topic banter but I would be interested in any novel empirical
> results that would lead one to believe gum hardens from the bottom up.
>
> Marek's image on transparency helps convince that gum hardens from top
> down, but isn't that image problematic by also negating the widely
> held
> belief that more surface roughness (e.g., Pictorico ceramic layer vs
> smooth side) allows for a stronger or easier to print image in a
> single
> layer? (A post for perhaps another day...)
>
> My take on this is has always been that gum hardens from the top down
> and that is evidenced by the often observed flaking of a too
> strongly-pigmented and underexposed emulsion layer. It comes off in
> chunks once the unexposed emulsion beneath it dissolves in water.
> This
> also seems confirmed by Marek's latest image. What leads others to
> believe or postulate the opposite?
>
> Let's leave who cares, what's the point, and who's a bad person out of
> this please and thank you.
>
> joe
>
>
>
>
Received on Sat Apr 15 20:03:41 2006