[alt-photo] Re: SG drying/ferrotyping [WAS: Dmax for silver paper]

[Richard Knoppow]

----- Original Message ----- 
From: "Jacques Kevers" <jacqueskv at gmail.com>
To: "The alternative photographic processes mailing list" 
<alt-photo-process-list at lists.altphotolist.org>
Sent: Saturday, January 14, 2012 2:55 PM
Subject: [alt-photo] Re: SG drying/ferrotyping [WAS: Dmax 
for silver paper]


>I wouldn't dare to put RC paper in a dryer; the 
>polyethylene layers might
> melt and leave you with a mess.
> RC glossy papers don't need any ferrotyping, they're 
> naturally glossy.
> Jacques
>
     Kodak recommended drying RC glossy (maybe all RC) using 
infra-red heat lamps. Not too hot, as you say the plastic 
will melt, but gentle heat. The IR is supposed to make the 
blacks blacker. I asked a former Kodak engineer about this 
and he confirmed it but did not give me a clear explanation 
of why it works. Most have seen the slightly hazy quality of 
blacks some RC papers have. The manufacturers seem to have 
cured this pretty well but the IR drying might still help.


--
Richard Knoppow
Los Angeles
WB6KBL
dickburk at ix.netcom.com