Iron Gall Fountain Pen Inks: Pigment and Dye-Based Inks Explained

Iron gall inks represent centuries of writing tradition, offering unmatched permanence and document security. These unique inks darken over time and resist water, fading, and tampering. Understanding the differences between pigment and dye-based formulations helps you choose the right iron gall ink for archival work, legal documents, or everyday writing. Learn how these historic inks work and which modern formulations offer the best performance.