Kallitype printing and Gold toning

Kallitype printing procedure by Davide Carraro (more details in the description)

The negative is printed with Piezography inks on Pictorico film, dmax 1.8.
The sensitizer is prepared from equal parts of silver nitrate 10% and ferric oxalate 20% and by the adding, depending on the paper, of PVA (polyvinyl alcohol) 5% and Tween20 20%.

Developer

Sodium Citrate 200g
Citric Acid 30g
Ammonium dichromate saturated solution 0,2ml
Water to 1000ml

Clearing

Citric Acid 40g
Water to 1000ml

Fixer

Sodium Thiosulfate 50g
Sodium Carbonate 10g
Sodium Sulfite 1g
Water to 1000ml

Hypo

Sodium bicarbonate 20g
Water to 1000ml

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Davide Carraro
instagram: piritegram
  / piritelab