Inks . . . so many inks

Earlier today, I saw this explanation and thought it was worth posting.

There are three basic types of ink pads - water based dye ink pads (Distress, SU, Memento Dye Ink and others):

Water-based dye ink

Pigment based ink pads like some Color Box pads, Stampin' Up! Craft Inks and others, and

Pigment-based ink

then there are solvent based ink pads like Staz-On that are good on non-porous surfaces. 

Solvent-based ink