Product Detail
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Brand: Pilot
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Made in: Japan
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Category: Fountain Pen Ink
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Net contents: 50ml
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Product Benefits: Smooth Ink Flow, Rich Pigmentation, Quick-Drying, Archival Quality, Elegant Writing Experience
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Special Features: Inspired by the beauty of moonlit nights, Packaged in a premium glass bottle, Designed for fountain pen enthusiasts and professionals
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Key Characteristics: Vibrant yet subtle shade, High-quality formulation resistant to smudging and feathering, Developed by Pilot’s century-long ink expertise
The Pilot Iroshizuku INK-50-TY Fountain Pen Ink in Tsuki-yo (Moonlit Night) is a part of the renowned Iroshizuku collection, celebrated for its exquisite colors and exceptional writing performance. Inspired by the deep blue of a serene night illuminated by the moon, Tsuki-yo ink captures a refined elegance that enhances every written word.
Crafted with precision in Japan, this fountain pen ink delivers a smooth, consistent flow that elevates both daily writing and creative expression. Its premium glass bottle not only ensures ease of use but also serves as a beautiful desk accessory, reflecting the artistry behind Pilot’s ink design.
Whether you are journaling, writing correspondence, or creating calligraphy, Tsuki-yo provides a timeless color that balances professionalism with a touch of poetic charm.
How to Use
Using the Pilot Iroshizuku INK-50-TY is effortless, ensuring a clean and enjoyable writing experience:
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Open the premium glass bottle carefully, ensuring a steady surface.
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Dip the fountain pen nib into the ink until fully submerged.
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Use the pen’s filling mechanism (piston, converter, or cartridge system) to draw ink into the reservoir.
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Gently wipe excess ink from the nib with a soft cloth or tissue.
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Enjoy smooth, expressive writing with every stroke.
For best results, always store the ink bottle tightly closed in a cool, dry place and clean your pen regularly to maintain optimal performance.
Why Choose Pilot Iroshizuku Tsuki-yo

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Elegant Color Inspired by Nature
The shade Tsuki-yo is designed to capture the essence of a moonlit night sky. Its deep blue with subtle green undertones provides a calm yet distinctive tone, ideal for professional documents or personal creative writing.
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Superior Ink Flow and Smooth Performance
Engineered for consistent performance, this ink ensures smooth, uninterrupted flow that minimizes skipping and blotting. It adapts seamlessly to various fountain pen nibs, from fine to broad.
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Quick-Drying and Smudge-Resistant
Formulated to dry efficiently on paper, Tsuki-yo helps prevent smudges and feathering. This makes it especially suitable for fast writers and those who value clean, precise notes.
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Premium Glass Bottle Design
Each 50ml ink bottle is crafted with a wide base and angled interior, allowing for easy filling even when the ink runs low. Beyond function, the bottle itself is a collector-worthy piece that reflects the artistry of Japanese craftsmanship.
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Trusted Pilot Quality
As a global leader in writing instruments for over a century, Pilot has earned a reputation for excellence. The Iroshizuku series embodies this legacy, offering inks that blend beauty, performance, and reliability.
Purchase link: https://yoyojapanstore.com/products/pilot-iroshizuku-ink-50-ty-fountain-pen-ink-in-moonlit-night-tsuki-yo
A Smart Choice for Writing Excellence
The Pilot Iroshizuku INK-50-TY in Tsuki-yo is more than just fountain pen ink—it is an expression of artistry and precision. With its evocative color, high-quality formulation, and elegant packaging, it transforms every writing moment into a refined experience. Perfect for collectors, professionals, or anyone who values the timeless beauty of handwritten expression.