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What’s Inside Blue Ballpoint Ink? Fatty Acids and Alcohol

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What’s Inside Blue Ballpoint Ink? Fatty Acids and Alcohol
Patents for ballpoint pens go back to the late 1800s, but it took half a century to develop good, fast-drying inks. The post What's Inside Blue Ballpoint Ink? Fatty Acids and Alcohol appeared first on WIRED.
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