Originally Posted by
jaciqltznok
wrong...they have been using vegetable dye since the 1980's!
Only partly right: Since 2004, 95% of American newspaper ink is now soy based, as opposed to petroleum based. It is not considered to be 100% biodegradable, however, because it is still mixed with additives, resins, pigments, and waxes. There are still some vinegar based inks, and those are high in acid, obviously.