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495 Views· 18/08/23

How Highlighter Pens Are Made | Insider


Highlighter pens were invented in the 1960s as a way to grab a reader's attention. Today, highlighters are made with tinted plastic pellets that are melted into pen molds. Once assembled, a machine has the pens draw 700 to 1000 circles to make sure the batch works properly.

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How Highlighter Pens Are Made | Insider

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