Inktend / Ink library / Polar Light - 冷却的白昼 (Dagen Svalnar)
Polar Light - 冷却的白昼 (Dagen Svalnar)
Cattybox is one of the 713 brands in Inktend's built-in ink catalog.
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 Cattybox
Cattybox is a Chinese fountain pen ink brand sold mainly through Taobao and other Asian e-commerce platforms. It is known for imaginative small-batch colour series such as its aurora- and 'dark matter'-themed collections, typically offered as sets of 5 ml sample bottles alongside full 50 ml bottles for fountain pens, dip pens and watercolour work.
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.