Photographic printing with pigments and colloids.
‘Cleaner and greener’ methods for nineteenth century photographic printing techniques like gum and carbon transfer and other pigment colloid techniques.
We will talk about photo-initiators like ferric ammonium citrate and DAS for carbon transfer and direct pigment processes. But also about all sorts of alternative colloids other than the classic gum arabic and gelatin. We will look at new combinations like casein with DAS but also at synthetic colloids like polyvinyl alcohol (PVA) and polyvinylpirrolidon (PVP) or different cellulose varieties. New photo initiators will be tested and described, like riboflavin (vitamin B2) and the very promising PVA-SbQ which is a one shot light sensitive emulsion that still has all the capacities of plain PVOH but is extremely light sensitive.