








Platinum Chou Kuro Black Ink
This ink has a reputation as “the blackest ink in the world.” It’s loaded with pigment, so you get an unbelievably dark, permanent black that resists light, water, and just about everything else. Images don’t do this fountain pen ink justice — it is DARK.
A word of warning: don’t load this into hard-to-clean pens or clear demonstrators. Handle carefully. Rinse pens with distilled water after using in your pens — the minerals in tap water can react with this ink and cause precipitation/blockages.
This ink has a reputation as “the blackest ink in the world.” It’s loaded with pigment, so you get an unbelievably dark, permanent black that resists light, water, and just about everything else. Images don’t do this fountain pen ink justice — it is DARK.
A word of warning: don’t load this into hard-to-clean pens or clear demonstrators. Handle carefully. Rinse pens with distilled water after using in your pens — the minerals in tap water can react with this ink and cause precipitation/blockages.