Where does permchrome ink come from?

Permchrome ink is a type of permanent ink that is often derived from a combination of synthetic dyes and pigments, along with various solvents and additives to enhance its durability and performance. The specific formulations can vary by manufacturer, but they typically aim to provide water, fade, and abrasion resistance. These inks are commonly used in applications like permanent markers and printing processes where longevity is essential.