Entrancing video shows how highlighters are made

Every year, more than 35 million pens and markers are cranked out at the Faber-Castell plant in Engelhartszell, Austria. The facility also spews forth 250 tons of ink for other Faber-Castell facilities around the world. However, the Textliner 48—the "superfluorescent" highlighter—is only produced at the Engelhartszell factory. The above video shows how. Best YouTube comment under the video:

"This was more interesting than the whole [university] semester, and ill probably remember every single thing of this."