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Originally Posted by Mik Dickinson
Black ink was mostly comprimised of Oil and coal.Not many chemicals went in to it.White print had ammonia in it
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Both coal and most oils are a complex mix of chemicals. Depends a bit, of course, on what kind of oil is being used, as there are many different types. Lots of not-so-good chemicals in coal. The quantities you would ingest certainly would not make you sick quickly. Longer-term exposure might not be a good thing. My wife used to work with a company that repaired printing equipment, and they had to handle some of the inks (in quantity) as hazardous substances.