Pilot Iroshizuku Yama-guri Fountain Pen Ink

Pilot Iroshizuku Yama-guri Bottled Fountain Pen Ink (15ml)

Pilot Iroshizuku Yama-guri (Wild Chestnut) captures the rustic warmth of ripe chestnuts fallen along autumn mountain trails in Japan. Part of Pilot's celebrated 24-color nature series, Yama-guri is an earthy, sophisticated espresso-brown ink with subtle cool-ash undertones. It displays expressive tonal shading that shifts gracefully between medium hazelnut-sepia in lighter passes to a deep roasted chestnut in saturated strokes, accompanied by a faint golden-green sheen on fountain pen-friendly papers.

Key Features

• Warm Autumnal Chestnut (Yama-guri): Inspired by wild mountain chestnuts, delivering nuanced sepia-brown shading with dark roasted depth and subtle golden sheen.
• Non-Carbon Dye Chemistry: Completely water-soluble and particle-free formulation that ensures consistent capillary draw without feed clogging or sediment build-up.
• Fluid Capillary Lubrication: Expertly balanced surface tension ensures smooth, glide-like nib feedback and consistent flow across diverse paper grades.
• Compact 15ml Glass Bottle (INK-15): Thick-bottomed faceted glass silhouette with an octagonal sealing cap, ideal for portable carry, desk rotations, or ink sampling.
• Universal Instrument Compatibility: Works seamlessly with all fountain pens (cartridge-converter, piston, and vacuum fillers), glass dip pens, and calligraphy nibs.

Specifications

• Brand: Pilot
• Collection: Iroshizuku
• Color: Yama-guri (Wild Chestnut / Deep Brown)
• Model Code: INK-15
• Formulation: Non-carbon water-based dye ink
• Volume: 15 ml (0.5 fl oz)
• Container: Clear glass bottle with threaded octagonal cap
• Country of Origin: Japan

Frequently Asked Questions

Does Pilot Iroshizuku Yama-guri clog fountain pens?
No. Yama-guri uses a completely soluble dye-based formulation without carbon pigments or shimmer glitter, making it exceptionally safe for fine nibs, delicate feeds, and vintage mechanisms with simple water rinsing.

Is Yama-guri a warm or cool brown?
Yama-guri is a complex, balanced dark brown that leans toward dark roasted chestnut and espresso. It maintains a dignified, professional appearance suitable for workplace correspondence while offering rich artistic shading.

Is Yama-guri waterproof?
No. Like traditional Japanese fountain pen dye inks formulated for easy cleaning and pen health, Yama-guri is water-soluble.

Can standard converters reach the ink in this 15ml bottle?
Yes. The wide bottle opening comfortably accommodates standard fountain pen converters, glass pens, and dip nibs.

For inquiries regarding confirmed orders, customer support is available at szjyf@outlook.com. Orders can be canceled for a full refund at any time prior to shipment dispatch.