Please note that using a sulfite hypo clearing bath leaves the material in a
neutral or slightly alkaline state and will eliminate any problem from staining
in a selenium toner.Secondly, the research done at IPI demonstrated that a low
level of selenium toning does not provide adequate image protection. IPI
recommends using a polysulfide toner. Even slight toning with polysulfide will
protect the image and will cause minimal change in image color.Complete fixing
is vital to permancy. A two bath routine with both baths changed frequently,
will assure complete fixing. The second bath can be the same as the first.
Acid fixer can be used if a buffered sulfite wash aid is used since that will
deliver the emulsion in a neutral pH condition.Washing after toning need be
adequate only to wash out the toner.Note that overwashing can impair
permanence. All this should be covered in the IPI site. Provided adequate
fixing is obtained quite conventional processing will result in quite good
permanence. Sent from my Galaxy
-------- Original message --------From: "titrisol("titrisol")"
<dmarc-noreply@xxxxxxxxxxxxx> Date: 4/17/23 12:26 PM (GMT-08:00) To:
pure-silver@xxxxxxxxxxxxx Subject: [pure-silver] Re: Calling All Chemists: When
To Tone?
IIRC acid is your main enemy.You can flip steps 3 and 4 easily and
using HCA after KRST can also cut the final wash timeIn the old old times, it
was recommended to have a 2 bath fixer, with the 2nd being plain hypo.Then a
short wash (5 min) and KRST for as long as needed, then HCA and final
wash.Check the IPI docs on that 1+40 KRST, you might need to increase the
quantity for archival quality as IPI showed that selenium needed to be carried
to almost completion.Toning and Permanence of Silver Gelatin PrintsBrown
toner/Viradon was way more archival.
On Sunday, April 16, 2023 at 02:48:50 PM EDT, Tim Daneliuk
<dmarc-noreply@xxxxxxxxxxxxx> wrote:
My normal archival fixing disciplines is:1. One minute fix in
Ilford rapid fixer2. Five minute running water wash3. Five minute PermaWash
treatment4. 3-7 min in Kodak Rapid Selenium Toner 1:405. 60min running water
wash in an Eco WasherYears ago, I tried combining the PermaWash and Tonersteps
by diluting the KRST further to get a minimumof 5 minutes time. This cause
intermittent staining.But as I read the ingredients for these concoctions,I
realized that KRST has Sodium Thiosulphate in it.So ... should I really be
toning first then
hypoclearning?=============================================================================================================To
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