[alt-photo] Re: ware cyanotype paper sensitivity

[John Brewer]

Chris,

I think I saw somewhere the pronunciation of gy in Argyrotype was 'guy' tho
I can't remember the source, James maybe?

John.

-----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
Christina Anderson
Sent: 11 January 2010 15:19
To: The alternative photographic processes mailing list
Subject: [alt-photo] Re: ware cyanotype paper sensitivity

Sam,
I've gotten purple spots with traditional but NOTHING like the gross purple
fog that happened with Ware's. This was definitely not the wet issue that I
have seen on my and student work.  It is like an overall haze of mid-shade
lavender.

This semester I am having my alt class do cyanotype, argyrotype instead of
VDB, gum, and pt/pd...I thought I'd switch to argyrotype for a while.  It
starts in 2 days...

Does anyone know HOW to pronounce argyrotype---is it ar JI ro type as in HI
or ar ghee ro type or ar jee ro type???

It is very cold here--but not as cold as Florida :)  It is about 10 degrees
right now and dry dry dry so it beat Florida's 34 humidity.  I can't believe
I went to Florida and never wore a bathingsuit. OR got a tan.

But I did get LOTS of work done!!! And some excellent time management books,
too, to start the new year right.

One tip of which is the two minute rule--if it is a two-minute task, do it
now.
Chris
Christina Z. Anderson
christinaZanderson.com

On Jan 11, 2010, at 8:06 AM, sam wang wrote:

> Chris,
> 
> Have you not gotten "purple fog" with the "cyanotype classic"? I have, and
attribute it to paper not thoroughly dry when exposed. Or have you come
across a new bug?
> 
> The pre-coated paper and cloth I received years ago from Blue Printables
all had quite severe blue/green colors but as you said, all exposed and
developed with no problem.
> 
> Sam
> PS: is it as cold and dry in Montana as it is in SC? Not easy to do any
alt printing!
> 
> 
> On Jan 10, 2010, at 12:19 AM, Christina Anderson wrote:
> 
>> Earl,
>> Did you expose it?  I expose paper that turns blue-green (Fabriano
Artistico does that to me regularly) and it works just fine. It may be that
it is duller and lower contrast, though.
>> 
>> The problem with unsuitable paper and Ware's was that after exposure and
developing you will get a yukky purple fog in all the highlights that really
ruins the print.  But if you add citric acid to the Wares coating mix that
takes care of that.  1 or 2 drops of 40% citric acid to 1 ml sensitizer or 1
g. citric acid to 100ml solution.
>> 
>> But you won't know if you get yukky purple fog or dull/low contrast blue
until you expose and develop. At which point, use the citric.
>> 
>> Let us know.
>> Chris
>> 
>> Christina Z. Anderson
>> christinaZanderson.com
>> 
>> On Jan 9, 2010, at 7:01 PM, Earl and Patty Johnson wrote:
>> 
>>> I am new to this list, but I recognize almost all of your names from
other places. I hope that some of you can shed some light on my situation.
>>> 
>>> Today I coated some Mike Ware formula new cyanotype on Arches Aquarelle
grain satine, and it turned bluish/green before it even dried. I know that
this sensitizer is sensitive (pun intended) to paper chemistry, but I
expected this paper to work. Does anyone have experience with this
combination? Does the paper have an alkali buffer that can be neutralized
with a soak in something like citric acid solution before coating? Or is my
cyanotype solution bad and should be discarded? Or is this paper verboten
for new cyanotype?
>>> 
>>> I like the Ware formula - I get six or seven more steps in the Stouffer
wedge than I do with the traditional formula. However, it is frustrating to
coat it on expensive paper and see it fog spontaneously.
>>> 
>>> Thanks for any comments.
>>> 
>>> Earl Johnson
>>> _______________________________________________
>>> Alt-photo-process-list | http://altphotolist.org/listinfo
>> 
>> _______________________________________________
>> Alt-photo-process-list | http://altphotolist.org/listinfo
> 
> _______________________________________________
> Alt-photo-process-list | http://altphotolist.org/listinfo

_______________________________________________
Alt-photo-process-list | http://altphotolist.org/listinfo
No virus found in this incoming message.
Checked by AVG - www.avg.com 
Version: 9.0.725 / Virus Database: 270.14.132/2610 - Release Date: 01/10/10
19:35:00