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Home / Pen Ink, Refills & Cartridges / Japan Pilot Ink ink-15 Iroshizuku Colorful Natural Fountain Pen Ink 15ml Student Use Non-Carbon Ink No Clogging

Attributes

Brand -
Category Stationery, Educational Electronics & Office Supplies / Pen Ink, Refills & Cartridges
Origin -
Brand Pilot
Series Iroshizuku
Volume 15ml
Ink Type Dye-based Non-Carbon
Origin Japan
Bottle Material Glass with Plastic Cap
Suitable For Fountain Pens
Flow Characteristic Smooth, Low Clogging Risk
Color Variety 24 Natural Tones Available
Target Audience Students and Calligraphy Enthusiasts

6 reviews

A

Anonymous

Mar 20, 2026

Rating: 5/5

Beautiful color and smooth flow

The Iroshizuku line is fantastic. This ink flows perfectly through my student fountain pen without any skipping. The color is vibrant exactly as shown in the pictures.

A

Anonymous

Mar 18, 2026

Rating: 5/5

No clogging issues at all

As advertised, this ink does not clog. I use it in an older vintage pen and it has restored its smooth writing experience. Excellent product.

A

Anonymous

Mar 17, 2026

Rating: 5/5

Consistent quality from Pilot

I have tried many colors in this series. They are all consistent in quality. The glass bottle feels premium and the cap seals tightly to prevent drying.

A

Anonymous

Mar 12, 2026

Rating: 4/5

Great for daily writing

Very reliable ink that doesn't clog even if I leave my pen unused for a few days. The 15ml bottle is a good size for trying out a new color before committing to a larger one.

A

Anonymous

Mar 08, 2026

Rating: 5/5

Perfect for students

Bought this for my daughter's calligraphy class. It cleans up easily and the non-carbon formula means no stubborn stains on her hands or desk. Highly recommend.

A

Anonymous

Mar 06, 2026

Rating: 4/5

Lovely subtle shade

The natural tone is very soothing to write with. It dries relatively quickly on standard paper. Only wish the bottle was slightly wider for easier dipping.

5 FAQ

Q: Does the bottle come with a dropper?

A: The bottle does not include a separate dropper; it is designed to be used by dipping your converter or piston filler directly into the bottle opening.

Q: How long does a 15ml bottle typically last for daily use?

A: For average daily journaling or note-taking, a 15ml bottle usually lasts between 3 to 5 weeks depending on your nib size and writing style.

Q: Can I mix this with other ink brands?

A: While technically possible, we generally recommend not mixing different ink brands or chemistries to avoid potential sediment formation or color muddying.

Q: Is this ink waterproof?

A: No, this is a non-carbon, dye-based ink designed for smooth flow and easy cleaning. It is not waterproof and will smear if exposed to water.

Q: Is this ink safe to use in a Lamy Safari fountain pen?

A: Yes, this Pilot Iroshizuku ink is dye-based and safe for use in most modern fountain pens, including the Lamy Safari.

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