What’s inside blue ballpoint ink?
Wired Magazine has a monthly feature called “What’s Inside”, where the staff researches and shares the ingredients of some of your favorite products.
Patents for ballpoint pens go back to the late 1800s, but it took half a century to develop good, fast-drying inks. Bic, Pilot, and other makers jealously guard their formulas, but to get that classic ballpoint blue, these companies mix up a cocktail of colorants.
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