Actually, given that there has not been any life-cycle analysis of the VOC
impacts of vegetable oil production (including farm and oil manufacturing
impacts) versus the VOC impacts of the petroleum oil that is otherwise
used, I also am reluctant to promote vegetable oil inks. In addition, the
soy oil label does not specify how much soy is in the ink above a small
minimum. If someone has an analysis that shows VOC benefits from using
vegetable oil ink calculated over the entire life-cycle, i.e., beyond the
benefits in the print shop, I would be interested in seeing it.
Lois N. Epstein, P.E.