U of S | Mailing List Archive | alt-photo-process-l | Re: chalky prints

Re: chalky prints

Could it be bronzing due overexposure? I noticed that when you overexpose
Ferric processes, you get some kind of solarization. (That's also true
when you use less than ideal solution -> usually, a thicker coating
requires more exposure and when it's too thin it's automatically
overexposed - so, finding the correct amnt. is crucial.)

Also, (less likely, but will mention anyway) papers with weak sizing will
exhibit some loss of contrast because sensitizer will penetrate the paper
too deeply and the image will form inside of paper instead of sitting on
top of them. Using an additional sizing layer and/or less surfactant - if
you include it in your workflow - could help if the problem lays there.

25 Ekim 2008, Cumartesi, 4:36 pm tarihinde, Christina Z. Anderson yazmış:
> Paul,
> I will offer what I see and maybe this is your issue--when you use too
> much solution, it will pool up and go sort of grey on you.  Make sure to
> use a thin even layer, do not double coat, and keep the paper evenly humid
> and you will be fine.  You can notice this especially in the borders of
> the print where solution at the edges of the borders is thicker due to the
> brushing, and you'll have a sort of grey edge effect.
> Chris
> __________________
> Christina Z. Anderson
> http://christinaZanderson.com/
> __________________
>   ----- Original Message -----
>   From: Paul Viapiano
>   To: alt-photo-process-l@usask.ca
>   Sent: Saturday, October 25, 2008 1:18 AM
>   Subject: chalky prints
>   Hi all...
>   I continue to work on argyrotypes here as I dip my toe in the alt
> waters...
>   Today I tried Lenox 100 paper, as I have read that it's quite amenable
> to the process, but alas the prints I made looked great in the wash but
> dried with a chalky haze look, especially noticeable in the darkest
> areas. Really bad...
>   The prints I made on Bienfang 360, the lightweight translucent marker
> paper, look fantastic.
>   So, it's not my solution or my coating technique, so I was wondering if
> anyone could offer advice? Dick Arentz has a little section in his pt/pd
> book about chalky and anemic prints, so I've been looking at that, too,
> trying to glean what may apply to the argy process as well.
>   Maybe I shouldn't waste time on papers that don't perform, but being a
> beginner I want to make sure that all the variables have been accounted
> for before I blame the material.
>   Thanks!
>   Paul