Why do pens leak in your pocket?


When your ballpoint pen is in your pocket it gets warmer because of your body temperature.

This means the ink inside becomes more liquefied and oozes out of the tip and end due to gravity.

It also means that the small grease plug at the end of a pen (which is there to stop the ink coming out) warms up and takes on the properties of a liquid.

On top of that the adhesive force that binds the liquid to the wall also lessens… More reasons here.

Good to know, I think.

Categories: Misc

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s