Alcohol Inks are a relatively new medium in the fine art world. The highly concentrated inks come in small dropper bottles and are applied to a heat-resistant smooth surface. Selective amounts of rubbing alcohol are poured to dilute the pigment, and the flow of the ink is directed by a heat emboss tool that blows hot air. The hot air itself is what moves the ink as there are no brushes or actual contact with the surface. It is a bit of a science experiment depending on the order of application, the amount of ink, and the angle & closeness of the hot air. The beauty of the finished product is the result of a give and take between artist and medium, where influence transcends control.
Lots more process videos can be seen on my Pinterest account HERE.