Excessive swelling makes gelatin
> mechanically weak and
> susceptible to damage (while wet).
But excessive swelling is not a given.
Your experience may vary, depending upon your specfic
conditions, but
I am somewhat surprised at your results and your need for
heavy hardening...
What temperature are you coating at?
Are you using a particularly soft gelatin for sizing?
Do you use a particularly thick / thin sizing layer?
Are you using bottom heat, or
is there heat comming in from somewhere?
I have never had a problem with this, but I do harden.
What actually happens when you coat on top of a lightly
hardened sizing layer?
(What does the result look like?)
Ray
--------------------------------------
Ryuji wrote:
My sizing
> solution has to be very
> well hardened because, if not, sizing layer gets
> melted while coating
> emulsion, and this causes a big problem.
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Received on Sun Dec 26 02:26:39 2004
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