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Cat's Eyes Ink - Russian Blue
NBC Nonble is one of the 713 brands in Inktend's built-in ink catalog.
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Paper & pairing
Greens read as more expressive than blue or black, a common choice for people who want color without leaving the realm of "still looks professional." 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 NBC Nonble
Nonble (NBC) is a Japanese stationery brand best known for limited-edition collaborations with major pen makers, including Sailor Pro Gear Slim models and a tea-themed series of Platinum #3776 Century pens. Editions such as Apricot Peach Tea, Chamomile Tea, Chai Tea and Peppermint Tea were produced in small numbers and paired with matching bottled inks. Its products are sold mainly through Japanese retail channels and stores such as Kinokuniya.
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.