NAKAYA - Ink・Converter - Dye Ink #1 (Black) Bottle type, 60ml（Price： 13$）

Product name: Dye Ink #1 (Black) Bottle type, 60ml
Price: US$13
Description: Dye ink black 60ml bottle.
It is more alkaline than the acidity of blue black ink. It decolorizes with water and turns brown with sunlight. However, it offers beautiful colors that can't be found in other types of inks, and a variable number of colors. It dries quickly and does not precipitate due to oxidation by air.
(Quated from "Ink Type" in PLATINUM PEN CO.,LTD. web site.
*It is available only when you oreder a fountain pen.　You cannot purchase this item alone nor with other accessories only.

Ink・Converter ・ Dye Ink #1 (Black) Bottle type, 60ml