Kallitype (terryroth@earthlink.net)
Tue, 08 Jun 1999 13:51:04 -0700
Joe Portale wrote:
>
> David,
>
> I have experienced the same problem with Arches hot press paper with Zia.
> Arches works fine with Ware pd/pt. I switched to Cranes and Fabriano, poof
> the problems went away.
>
> Also, I was able to get less mottling when I didn't use Tween in the
> chemistry. I have seen the chemistry actually foam up with Tween when
> applied to Arches. I suspect that the problem is with the sizing in the paper.
>
> Joe
>
> At 09:47 PM 6/7/1999 +0100, you wrote:
> >Hello
> >
> >I've printed a few Ziatypes now, and had no problems. However, last week I
> >bought some Arches HOT paper which I cut up into 10x8" sheets (to print 5x4"
> >negs).
> >
> >I printed one print, which came out fine, but then I thought that I would
> >change the chemical mix by adding more Sodium Tungstate than I've used
> >before. The resultant print looked awful - it was mottled all over,
> >including the black borders, almost as though the grain had gone huge.
> >Although I've not seen "reticulation" of a negative in the flesh, this was
> >the word that sprang to mind when I saw the print.
> >
> >I put it down to the cheimal mix I'd used, and packed up for the night.
> >
> >However, last night I printed another negative using one of the chemical
> >mixes that have worked fine for me before, and I got the same horrible
> >effect.
> >
> >Before I run some more test, I'd appreciate it if you would let me know the
> >likely causes of this. My initial thoughts are:
> >
> > i) One of the chemicals has gone off - but this is unlikely as I printed
> >one good print in the same session as my first bad one.
> >
> > ii) Maybe I coated the wrong side of the paper??? I intend to cut
> >one of my 10x8 sheets in half, turn one half over then coar and print on
> >both pieces.
> >
> >My inital hunch is that it's something to do with the paper, but as I say,
> >any help would be much appreciated.
> >
> >David Nash
> >
> >
***************************************
I have not seen this problem with ARCHES PLATINE 90# hot press,
using 12 drops AFO, 12 drops PD, and 1 drop dichromate. I have never
used Tween with this paper, though. Addition of tungstate (1 or 2
drops) does not cause mottling/grain either, nor does a drop of 5% AuCl.
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