Jim Hayes discovered this pdf of a thesis for the University of Applied Sciences in Cologne. I uploaded a 72dpi version of it, along with Jim's synopsis as a text file to be found in our Files>Ink Data section. Makes for interesting if sometimes tech-heavy reading (mostly organic chemistry) . Not limited to monochrome inks, but good reference for our concerns here. Antonis Ricos
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Ink permanence research thesis uploaded
2001-08-23 by Antonis Ricos