Hi, I started platinum printing when it was cheaper to print in pure platinum than platinum-palladium or palladium only.
I know Irwing Pen quote that two materials behave diffferently.
At the begging I had a problem because all the modern literature was based on palladium printing because at the time of publishing palladium was cheaper I suppose.
Now printing in palladium is cheaper again and I am of metal salt so I want to try palladium.
My first kit contained ammonium citrate as a developer and edta and sulfite as clearing agents.
By reading a scan of ancient platinum printing manual I switched first to hot potassium oxalate and then to started adding potassium phosphate to the developer instead of heating it, so called cold bath developer.
I always printed by looking at the image formation in spring back contact printing frame, and get quite close.
But my process was always inconsitent developer clearing agent paper acidifying.
Help me build efficient workflow.
Im to first starting making my sodium citrate developer, using muriatic or citric acid to acidify the paper and something to brine it back to neutral ph.
I just want to keep one jug - developer, and using clearing agents one shot.
So I have some questions
1) how much print out image differ between pure platinum and pure palladium at the same humidity?
2) do I have to wash the paper in tap water after acidifaing it?
3) what is most efficient one shot clearing agent?
4) and in general what to expext by printing in palladium instead of platinum aside from warmer color and longer scale?
5)shoud the paper be dryed to crispness like with pure platinum?
I am also swithing from 4x10 crops to 7x17, so 3 Times more chemistry, 3 times more expensive mistakes.
Appreciate any adwice.
I know Irwing Pen quote that two materials behave diffferently.
At the begging I had a problem because all the modern literature was based on palladium printing because at the time of publishing palladium was cheaper I suppose.
Now printing in palladium is cheaper again and I am of metal salt so I want to try palladium.
My first kit contained ammonium citrate as a developer and edta and sulfite as clearing agents.
By reading a scan of ancient platinum printing manual I switched first to hot potassium oxalate and then to started adding potassium phosphate to the developer instead of heating it, so called cold bath developer.
I always printed by looking at the image formation in spring back contact printing frame, and get quite close.
But my process was always inconsitent developer clearing agent paper acidifying.
Help me build efficient workflow.
Im to first starting making my sodium citrate developer, using muriatic or citric acid to acidify the paper and something to brine it back to neutral ph.
I just want to keep one jug - developer, and using clearing agents one shot.
So I have some questions
1) how much print out image differ between pure platinum and pure palladium at the same humidity?
2) do I have to wash the paper in tap water after acidifaing it?
3) what is most efficient one shot clearing agent?
4) and in general what to expext by printing in palladium instead of platinum aside from warmer color and longer scale?
5)shoud the paper be dryed to crispness like with pure platinum?
I am also swithing from 4x10 crops to 7x17, so 3 Times more chemistry, 3 times more expensive mistakes.
Appreciate any adwice.
