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IROSHIZUKU Ink

IROSHIZUKU Ink

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Colour: YB - yama-budo
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Pilot Iroshizuku fountain pen ink is named after the combination of iro (color) and shizuku (droplet): each color is inspired by the natural landscapes and plants of Japan. It is a line renowned worldwide for its chromatic depth and quality formulation.

Available in a 50 ml bottle and in cartridges for selected colors. The formulation is water-based, suitable for any fountain pen with a cartridge or converter system.

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  • 50 ml bottle with an inclined bottom to collect residual ink
  • Cartridges available for colors: shin-kay, tsuki-yo, asa-gao, take-sumi
  • Water-based, vegan formulation, compatible with all fountain pens
  • Product of Pilot, Japan

The 13 colors of Pilot Iroshizuku fountain pen ink

On pens.it, 13 colors from the Pilot Iroshizuku fountain pen ink line are available, each with a name inspired by Japanese nature:

  • yama-budo — dark red-purple (mountain wild grape)
  • murasaki-shikibu — medium purple (beautyberry)
  • shin-kay — deep blue-green (new ocean)
  • tsuki-yo — night blue-green (moonlit night)
  • asa-gao — cornflower blue (morning glory flower)
  • kon-peki — brilliant turquoise blue (azure sky)
  • ama-iro — sky blue (color of the sky)
  • syo-ro — teal (dew on a pine)
  • shin-ryoku — forest green (deep green)
  • ku-jaku — peacock green (blue-green)
  • fuyu-syogun — cold winter gray (winter general)
  • yama-guri — chestnut brown (mountain chestnut)
  • take-sumi — bamboo charcoal black

If you don't know where to start, read our article What color are you today? — a guide to choosing ink color based on mood, season, and writing style.

Technical features

Iroshizuku inks are water-based and formulated with high-quality pigments. They flow smoothly and evenly, with an average drying time for fountain pen inks. They do not contain acids, so they do not damage nibs over time. The formulation is also compatible with converters and piston systems.

The 50 ml bottle has an inclined bottom that allows residual ink to be collected even when the level is low, reducing waste. To learn more about fountain pen ink characteristics, consult the ink page on Wikipedia.

FAQ

Is Iroshizuku ink compatible with all fountain pens?

Yes. The water-based formulation is compatible with any fountain pen that uses standard cartridges or converters. It does not contain acids or solid pigments that could clog the nib or feed.

How do I choose the right Iroshizuku color?

Iroshizuku colors cover a wide range: from deep blues (shin-kay, tsuki-yo) to light blues (ama-iro, kon-peki), from greens (shin-ryoku, ku-jaku, syo-ro) to purples (yama-budo, murasaki-shikibu), and also gray, brown, and black. The choice also depends on the type of paper, the pen, and the writing style. Also read our article What color are you today? for guidance.

Is Iroshizuku ink waterproof?

No. Like most water-based fountain pen inks, Iroshizuku is not waterproof. It is suitable for daily writing, journaling, and correspondence, but not for documents that require resistance to moisture.

Pilot - inchiostro Inchiostro IROSHIZUKU

The names of the inks

Ama-Iro = sky blue
Asa-gao = morning glory flower
Fuyu-syogun = wide winter
Kon-peki = summer ocean blue
Ku-jaku = peacock blue
Murasaki-shikibu = ornamental plant with berries
Shin-kai = sea of the abyss
Shin-ryoku = forest green
Syo-ro = pine tree dew
Take-sumi = bamboo charcoal
Tsuki-yo = moonlight night
Yamabudo = crimson climbing vine
Yama-guri = wild chestnut

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