From: Sandy King (sanking@clemson.edu)
Date: 07/26/03-09:35:03 AM Z
Arie,
Another consideration is how many times you have used the developer.
Some people have claimed that kallitype developers just get better
with time but in my experience this is not true. Unlike Pt/Pd, where
the developer can be used over and over with no change in printing
quality, you must replenish kallitype developer on a regular basis.
If you just keep reusing it your prints will become increasingly
difficult to clear, and at some point there will be no way at all to
clear. It has been some time since I used sodium acetate but my
recollection is that it has somewhat less capacity than sodium
citrate.
I generally replenish at the rate of about 100ml of fresh solution
for about every 200 square inches of paper developed, or whenever
prints start to take a long time to clear.
Sandy
>Hi Sandy
>That's kinda what I was thinking, since we ruled out pretty much any other
>variable. That's why I ordered a batch of new raw chemistry, including
>sodium citrate to try that as a developer. I also thought that the clearing
>solution concentration was excessive, but I was trying every variable
>Arie
>
>
>----- Original Message -----
>From: "Sandy King" <sanking@clemson.edu>
>To: <alt-photo-process-l@sask.usask.ca>
>Sent: Friday, July 25, 2003 10:12 PM
>Subject: Re: kallitype problem
>
>
>> Just another thought. Maybe something is wrong with that developer.
>> In my experience after developing Stonhenge Rising in 20% Sodium
>> Citrate there is very little clearing required, perhaps no more than
>> 2-4 minutes in a 3% citric acid bath.
>>
>> Sandy King
>>
>>
>>
>>
>> >Hi Arie,
>> >
>> >
>> >If you go to http://unblinkingeye.com/Articles/Kallitype/kallitype.html
>> >and follow the directions you will make good kallitypes.
>> >
>> >Sandy King
>> >
>> >
>> >
>> >
>> >>Hi, sorry for the long message, but I need to give all the info
>first.....
>> >>
>> >>I need to send this out to the list, because during the past week I've
>been
>> >>on the phone to B&S almost everyday (this month's phone bill will be
>> >>murder). Right now it seems I have both Dana and Kevin Sullivan
>stumped.
>> >>
>> >>First the background......the past few months I've been concentrating on
>Van
>> >>Dijk Bruin prints to get back in to the swing of traditional printing.
>> >>(they are relativly quick cheap and easy......kinda like me in my
>twentys)
>> >>When I went to switch to Kallitypes I went and tested a number of papers
>> >>with a Stoufers 21 step wedge so that I could dial every thing in. The
>> >>papers that I tested were :
>> >>
>> >>Coventry Rag
>> >>Rising Stonehenge
>> >>Arches Platine
>> >>Strathmore Bristol regular surface
>> >>Cot 320
>> >>
>> >>They all had fogging in the highlights that would not clear. My process
>was
>> >>to coat the paper and let it dry in complete darkness before exposure.
>> >>After exposure it was developed for 5 minutes in B&S Kallitype Black
>> >>developer, followed by a two minute rinse in running filtered water.
>This
>> >>was follwed by a clearing bath of both EDTA and citric acid then another
>> >>rinse, for the initial tests I did two batches one was toned in platinum
>the
>> >>other was not. This was finished with a 5% fix and a proper wash.
>> >>
>> >>Initially I thought it was the lighting in the darkroom, so I changed it
>to
>> >>even a dimmer light than what I had. Still the same. After speaking
>with
>> >>Dana I tried his suggestion of processing a coated and dried sheet
>without
>> >>exposure....still no clearing. I even tried his other suggestion of
>> >>changing the amount of FeOx in the sensitizer....no go.
>> >>
>> >>The next day I spoke with Kevin, he said its the most fickle of all the
>> >>processes (much like some old girlfriends years ago) and suggested hot
>> >>developer and maybe a new coating rod (I use thick plexi
>tubing)....still
>> >>the same. Though this time I punched the concentration of the clearing
>bath
>> >>up to 7% citric acid and 3% EDTA....there was a slightly better result.
>> >>Instead of being a dark beigey stain that appears as soon as the
>developer
>> >>hits it, and hangs in till the end, this time it cleared a little.
>> >>
>> >>So the next day I was back on the phone with Kevin. We were left with
>both
>> >>of us scratching our heads, with the only thing left to try was still a
>more
>> >>concentrated citric acid solution. I tried it but there is still a
>> >>stain/fog.
>> >>
>> >>So right now I'm waiting for new chemistry to start again from the
>begining.
>> >>Either that or just listen to Kevin and jump to platinum...but I would
>> >>still like to master the Kallitype and its range of colors.
>> >>
>> >>Has anyone had a similar experience? If so were you able to correct it
>and
>> >>HOW!!!!!
>> >>
>> >>Thanks in advance
>> >>Arie Knoops
>>
This archive was generated by hypermail 2.1.5 : 08/07/03-03:34:50 PM Z CST