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Black Tulip
ON Inks is one of the 713 brands in Inktend's built-in ink catalog.
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Paper & pairing
Purples sit at the boundary of professional and playful, one of the more personality-forward choices that still reads clearly on the page. This ink will behave predictably on most fountain-pen-friendly paper. Cheap, highly absorbent paper (standard copier paper) will dull any ink's saturation and can cause feathering or bleed-through with wetter nibs.
About ON Inks
ON Inks is a small fountain pen ink maker from the Philippines whose inks are made locally and sold mainly through Philippine channels such as Lazada and Shopee as well as social media. The brand offers a line of standard fountain pen inks and small sample vials, and has been reviewed by international ink blogs such as Mountain of Ink.
Storing and using the bottle
Bottled fountain pen ink has an effectively long shelf life when kept capped and out of direct sunlight: most inks remain usable for years. The main risk isn't the ink spoiling, it's a pen sitting inked and unused for weeks: that's what causes clogs, not the ink's age.
Frequently asked questions
Similar shades By colour distance
Color shown is a close digital approximation of a typical swatch, not a calibrated color match.