Why There is a Hole in a Pen Cap?

Have you ever wonder why pen caps have a hole?

One of the more common things we notice on a daily basis but never pay attention to are the holes you see at the end of ballpoint pens that we use regularly. Whether it's a BIC pen that you simply probably saw your father once use or the Reynolds ballpoint pen that we've grown up writing with, most, if not all pen caps, have a hole at the tip of the cap.

Caps hole use to dry the ink faster.

Now, this looks like a conspiracy theory at work, since caps with holes at the top do contribute to drying the ink on the nib making it slightly harder to use each time you start writing with it.

A few borderline paranoid users wont to believe that companies did this intentionally to scale back the ink life forcing one to shop for pens more often. But, that really isn't the case.

The opening within the cap helped equalize pressure when one opened and closed it.

While the opening does find yourself serving the aim of equalizing the pressure to form it easier opening and shutting the cap, tons of the pens had holes into the sides of the caps making the pressure problem redundant. While quite a few sorts of pens have caps which will be screwed on, making atmospheric pressure not drag in the least.

So, what is the real reason?

The pen caps have holes in them to stop suffocation, just in case, they were swallowed.

One of the oldest and more popular ballpoints was the Bic Cristal who originally made it a part of their design to incorporate a little hole at the top of the cap. Considering that pen caps were one among the common objects swallowed by children causing them to choke and proved fatal.

The hole was put in to permit passage of air just in case the dreadful event happened; since we all love putting them in our mouths!