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No.13 启明长庚
Zerkon's Ink is one of the 713 brands in Inktend's built-in ink catalog.
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Paper & pairing
Blues and navies are the most broadly "safe" fountain pen colors: legible, professional, and unlikely to raise eyebrows in an office. 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 Zerkon's Ink
Zerkon's Ink is a small Chinese fountain pen ink brand sold mainly through Taobao, where its bottles and numbered sample sets are listed under the name "zerkon ink". Its colours are catalogued by number and poetic name (for example No. 32 Poseidon and No. 54 Abracadabra) and are sold both individually in 50 ml glass bottles and as multi-colour sampler sets. The inks are aimed at journaling and dip-pen users and are reviewed by Chinese hobbyists on video sites such as Bilibili.
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.