English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories

3 answers

The key to a ballpoint pen is, of course, the ball. This ball acts as a buffer between the material you're writing on and the quick-drying ink inside the pen. The ball rotates freely and rolls out the ink as it is continuously fed from the ink reservoir (usually a narrow plastic tube filled with ink).
The ball is kept in place -- between the ink reservoir and the paper -- by a socket; and while it is in tight, it still has enough room to roll around as you write. As the pen moves across the paper, the ball turns and gravity forces the ink down the reservoir and onto the ball, where it is transferred onto the paper. It's this rolling mechanism that allows the ink to flow onto the top of the ball and roll onto the paper you're writing on, while at the same time sealing the ink from the air so it does not dry in the reservoir.

2007-03-10 09:25:28 · answer #1 · answered by airam 4 · 0 0

There is actually a little ball inside of the pen and when you write, it turns every which way. When it passes the inside ink gets onto it and it transfers to your paper.

2007-03-10 23:06:45 · answer #2 · answered by Steve A 2 · 0 0

the ball rolls the ink then flows. some kind of steel product on the ball itself that does not rust.

2007-03-11 10:32:36 · answer #3 · answered by cadaholic 7 · 0 0

fedest.com, questions and answers