[alt-photo] Re: ziatype

[EJ Photo]

In my work with glycerine as an additive to coating solutions, you'd need to
add a lot to get it sticky to a point of grabbing a neg. I'd expect a
problem more often with too high a pressure in general. Just because a
vacuum can draw 30 or 35 psi, does that mean you should always use it? 

I would add about 3 drops or so for an 11x14. I will need to go back and see
if that was tracked.  

Eric Neilsen
Eric Neilsen Photography
4101 Commerce Street, Suite 9
Dallas, TX 75226
 
www.ericneilsenphotography.com
skype me with ejprinter
Let's Talk Photography
 
-----Original Message-----
From: alt-photo-process-list-bounces at lists.altphotolist.org
[mailto:alt-photo-process-list-bounces at lists.altphotolist.org] On Behalf Of
Mark Nelson
Sent: Tuesday, May 01, 2012 2:53 PM
To: The alternative photographic processes mailing list
Subject: [alt-photo] Re: ziatype

Loris,

A stupid question..

If you add glycerine to the mix to get ziatype to work better in low
humidity, what keeps the emulsion from sticking to the negative?

Thanks,
Mark


Best Wishes,
Mark Nelson

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On May 1, 2012, at 9:28 AM, Christina Anderson wrote:

> Thanks, Loris,
> How many drops, Loris, per drop count? I have glycerin I could try. 
> 
> Anything to make Montana's lack of humidity work!
> 
> Good to know about the AFO because mine is old, too and I was wondering if
I should worry.
> Chris
> 
> Christina Z. Anderson
> christinaZanderson.com
> 
> On May 1, 2012, at 1:40 AM, Loris Medici wrote:
> 
>> Dear Christina,
>> 
>> Maybe glycerin can help in that regard: I can have full printout (with
>> pop pd) and a very neural color even at 22C / 30%RH, when I add
>> glycerin (another strong humectant) to the coating solution. Haven't
>> noticed any adverse effect so far...
>> 
>> I have AFO from two sources: 1. B&S, 2. Fluka, and both are in semi
>> opaque / white plastic containers. Those containers probably don't let
>> UV inside, because I still don't have any problems with the container
>> from B&S, 6-7 years after purchase, and with the Fluka container too.
>> (The - very similar material - Fluka container is relatively new, only
>> 1 year...)
>> 
>> Regards,
>> Loris.
>> 
>> 
>> 2012/5/1 Christina Anderson <zphoto at montana.net>:
>>> ...
>>> It seems the fumed silica is another "hygroscopic" ingredient as is the
lithium
>>> pd and the cesium pd, all serving to keep moisture in the layer to make
a DOP
>>> more POP is what I gather from my reading.
>>> 
>>> I have some AFO here that I've had a few years. Funny, it is packaged in
a
>>> semi-opaque plastic container...guess it is not that light sensitive...
>>> ...
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