----- Original Message -----
Sent: Monday, May 20, 2002 12:50 PM
Subject: Re: Cyanotype fading at dying
(dry-up effect)
I have done traditional cyanotypes in different areas of
the country and with a variety of paper types but never had this effect.
Do you get a dense blue in areas fully exposed to the light?
>
> From: Stane Ko?ar <revija.les@siol.net>
> Date:
2002/05/20 Mon AM 09:29:30 GMT
> To: alt-photo-process-l@sask.usask.ca
>
Subject: Cyanotype fading at dying (dry-up effect)
>
> After
trying quite a lot of different papers with both classical and MW cyanotype I
noticed, that all my cyanotypes fades at drying - just opposite the dry-down.
When picture is OK when wet, it becomes to pale when dries up - let say for
minimal one zone.
> First I thought that our water contains too much
carbonates, so I washed my pictures whole time in acidified water (with citric
acid) and fading was again there.
> Anybody has an explanation of that
effect? (I looked at archives and did't find any answer).
>
>
After trying quite a lot of different papers with
both classical and MW cyanotype I noticed, that all my cyanotypes fades at
drying - just opposite the dry-down. When picture is OK when wet, it
becomes to pale when dries up - let say for minimal one zone.
First I thought that our water contains too much
carbonates, so I washed my pictures whole time in acidified water (with citric
acid) and fading was again there.
Anybody has an explanation of that effect? (I
looked at archives and did't find any
answer).