Pilot’s Frixion series of groundbreaking erasable-ink pens became international bestsellers following their launch in 2006. Frixion products have now sold a total of 1.5 billion units worldwide. Forms ...

In a groundbreaking development for the stationary industry, engineers have managed to design a pen that never depletes its ink supply. This innovation, a significant leap forward in writing ...

PITTSBURGH (KDKA) -- Some things are very sensitive when it comes to temperatures, and we are going to do an experiment that uses a temperature sensitive ink. "Temperature sensitivity" means that the ...

Whether you’re an artist, a fan of adult coloring books, or just love doodling on paper, gel pens are a great tool for expressing your creativity. The best gel pens for coloring have smooth-flowing ...

At its most basic, a pen has to do just one thing, but there are so many reasons to choose one over another. Does it glide along the page, or does it drag? Does the ink flow in a smooth line, or is it ...

You probably have no idea where the ink in your pen comes from, much less whether it’s a simple factory process or demanding of more expertise. Josh Velson, a chemical engineering consultant for bio ...