The traditional methods of producing iron gall ink resulted in an acidic mixture, not ideal for long-term archival writing or storing the ink in fountain pens. Modern formulations of iron gall ink are somewhat less corrosive and are still occasionally used in applications that require permanence. Similarly, if we change ink in fountain pen from Iron Gall ink to a different type of waterproof ink we should wash them thoroughly. It's two central components are tannic acid and iron sulfate. Rohrer and Klingner has two iron gall inks their fountain pen ink lines as of this writing - Scabiosa and Salix. Its indelibility and rich dark tone were desirable traits for artists, scribes, letter-writers, bookkeepers, i. Iron gall ink is made of galls formed by wasps who lay their eggs in the tissue of a tree, resulting in growths that are high in tannins. Should I be worried? I use an wide array of vintage and modern pens some cheap some expensive. Oct 9, 2023 · Historically, iron gall ink was made with a mixture of iron salts and tannic acid. First developed around the 4th century, it quickly became the preferred ink for writing on parchment because, unlike carbon-based inks, it chemically bonds with and etches the surface, making it permanent and difficult to erase.

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