U of S | Mailing List Archive | alt-photo-process-l | Sorry & oilprint help

Sorry & oilprint help

.... since two days al my msg's to the list were bouncing; so i contact my server and hope it is ok now...

Normal oil paint is really not the way to go; litho-etching ink is harder (and i have the impression less additives).
Even the litho-ink is not stiff enough for me, i add pure pigments to stiffen; also magnesium-carbonate can be used.
But, like gumprinting, parameters influencing the final result are numerous.
Gelatine coating (it took me some time before deciding to stick to 3 layers of 8 to 10 %.)
The potassium carbonate 6 %, coating until the paper is not taken anymore and it takes a long time to dry.
The exposure, compared to gum it takes about 2 times as much (in my case with an inkjet-plotter-foil neg.: for gum 600 to 700 seconds, for oilprint about 1400 seconds)
The ink: if spread very thin on a tile or equivalent, go over it with a foam roller, try on a sheet of normal paper, result must be a very thin 'brayer-stroke'.
Before inking i dry the paper both sides, and wait a bit before starting inking.
If ink is applied, spray a bit of water over it, and use a clean foam roller to bring back the contrast.
Hope this helps.
If not, tell me what exactly goes wrong.

  • References:
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      • From: ghmthijs@hetnet.nl