Writing ink poisoning occurs when someone swallows ink found in writing instruments (pens).
Writing ink is a blend of:
* Dyes
* Pigments
* Solvents
* Water
It is generally considered nonpoisonous.
Ink is a relatively safe liquid, ingestion of small amounts will not prove deleterious. Having said that, just because ink is relatively safe does not mean you go and drink ink. Consumption of large amounts of ink (more than an ounce) can cause ink poisoning symptoms. The best part is even if you are tricked into drinking ink by wacko classmates, ink poisoning is not fatal! However, just after ink ingestion, one may experience the following symptoms:
* Severe headache
* Eye irritation
* Skin and mucus membrane staining
However, there’s a caveat to all this. Some inks contain tiny amounts of chemicals like phenol, ethyl glycol or xylene (usually used in permanent markers), all of which can be dangerous in large amounts, so you’d obviously want to avoid ingesting too much of them.