Some terms for black color I have seen are:
- Process Black
- Pantone Black C
- rich black
Do others exist?
What makes them different?
Process black and Rich black are both similar if not the same. The black is created with a mixture of Cyan, Magenta, Yellow, and Black. In 4 color printing it makes sure the back is saturated.
Pantone black is a spot color or a specific ink.