SO WHY USE VEGETABLE OIL BASED INKS?

The principle reason that should be stressed is that vegetable oils are a renewable resource, not a finite one like petroleum. Petroleum is far more valuable as a source of primary chemicals for pharmaceuticals and other synthetic chemicals and materials which enhance our lives. As long as soy beans or canola can be grown, a plentiful supply of vegetable oil is available for use in printing inks. The brightness of the colors compared to oil based products as well as possible mileage improvements are other valid reasons to use a vegetable oil product over one based on petroleum.