Teranishi FUJIYAMA IRODORI Rin Purple 12 ml Fountain Pen Ink
Teranishi FUJIYAMA IRODORI Rin Purple 12 ml Fountain Pen Ink brings a mysterious purple inspired by the magic-hour sky above Mount Fuji to the page. Its compact size makes it easier to enjoy an unusual colour without committing to a large bottle. It is well suited to fountain pen users, collectors of Japanese stationery and anyone looking for an elegant writing-related gift.
Inspired by the magic-hour sky
Mount Fuji was inscribed as a UNESCO World Cultural Heritage property in 2013 for its importance as an object of worship and a source of artistic inspiration. Its appearance changes with the season, weather and time of day, producing landscapes that have influenced Japanese art and visual culture for centuries.
FUJIYAMA IRODORI interprets those transformations through six colours associated with different expressions of the mountain. Rin Purple represents the magic hour, the brief transition when daylight meets shadow and the sky develops a deeper purple character. Teranishi presents it as a dignified, mysterious colour shaped by the coexistence of stillness and movement.
Created for writing and drawing
This water-based ink is formulated for fountain pens and can be used for journaling, correspondence, everyday notes, calligraphy and small illustrations. Its purple tone introduces a distinctive colour to daily writing while retaining some of the restraint associated with darker inks.
The appearance of Rin Purple may shift with the paper, nib width, amount of ink deposited and surrounding light. These variables allow the same ink to reveal different nuances across individual pen and paper combinations. Before changing colours, rinse the fountain pen’s nib section with clean water.
Close the bottle securely after every use to limit evaporation. The ink should also be stored away from high temperatures, excessive humidity and direct sunlight.
Contents and presentation
The package contains one glass bottle filled with 12 ml of Rin Purple ink, finished with an aluminium cap and supplied in a paper outer box. Its small footprint makes it easy to store and useful for writers who rotate several colours. The original packaged product is supplied by Inktraveler. (Photographs are illustrative; the displayed shade may differ from the original product depending on the screen, paper and writing conditions).
Technical specifications
Brand and manufacturer: Teranishi Chemical Co. Ltd.
Product type: water-based fountain pen ink.
Colour: Rin Purple.
Ink capacity: 12 ml.
Bottle: glass.
Cap: aluminium.
Outer box: paper.
Pack size: one.
Country of origin: Japan.
Bottle dimensions: 26 × 56 × 26 mm.
Bottle weight: 38 g.
Package dimensions: 58.5 × 63 × 30 mm.
Package weight: 55 g.
Manufacturer reference: FUJ-12ML-T26.
GTIN EAN-13: 4902071200425.
The six FUJIYAMA IRODORI colours
The FUJIYAMA IRODORI series comprises San, Sakura, Rin, Akane, Zen and Sai. Each colour presents another interpretation of Mount Fuji and Japan’s traditional colour sensibility. Rin Purple is the collection’s purple variant and draws its identity from the changing atmosphere of the magic-hour sky.
Frequently asked questions
Will it work in every fountain pen? It is intended for fountain pens that accept bottled ink through a converter, piston or another compatible filling system. A cartridge-only pen will require the correct converter before it can draw ink from the bottle.
Is Rin Purple permanent or waterproof? Teranishi identifies it as a water-based ink and does not market it as permanent or waterproof. Writing that must withstand moisture should be produced with an ink specifically designed and tested for that purpose.
What inspired Rin Purple? Teranishi associates the colour with the magic-hour sky around Mount Fuji. It is a mysterious purple shaped by the transition from day to night, when the stillness of the landscape meets the continuing movement of light.
What is the advantage of a 12 ml bottle? The smaller volume makes it easier to explore a special colour, rotate several inks and finish a bottle. It also requires little storage space, making it practical for writers who keep multiple pens inked in different shades.
How should a fountain pen be cleaned before changing colours? Empty the previous ink and rinse the nib section with clean water until it runs clear. Allow it to drain before filling with Rin Purple so residue from another colour or formulation does not alter the new ink.
The history and philosophy behind Teranishi
Teranishi is the surname of the company’s founder, Choichi Teranishi. After spending three years learning how to manufacture ink, he established the workshop that would become Teranishi Chemical Industry in Osaka in April 1916 at only 18 years of age. Its first products included writing ink and coloured pencils made in Japan.
The company emerged as fountain pens were becoming more widely used and imported stationery still shaped much of the Japanese market. Teranishi set out to create domestic writing inks and art materials capable of competing with those products. Colour, practical writing and freedom of expression have therefore been connected throughout the company’s history.
Guitar is Teranishi Chemical’s historic commercial mark. According to the manufacturer, Guitar Mark became an established brand for its export products in 1931 and was later extended to the Japanese market. Its precise origin has not been documented, but Teranishi preserves two possible explanations: the popularity of guitars in the Philippines, an important early export destination, and the association between the colours of art and musical notes.
The earliest Guitar emblem depicted Benzaiten holding a traditional Japanese biwa. It later changed to an image of a queen with a guitar before developing into the present symbol, which combines a crown, a musical note and the six letters of GUITAR. This visual identity connects Teranishi’s experience in ink and art materials with the worlds of music and colour.
Teranishi’s history is also defined by resilience. Its facilities and materials were destroyed during the bombing of Osaka in 1945, yet production resumed in February 1946. In 1953 the company developed Magic Ink, which it recognises as Japan’s first domestically produced oil-based marking pen.
Its modern fountain pen inks reconnect that technical experience with the writing products that began the business. FUJIYAMA IRODORI carries this heritage forward by turning Japanese landscapes and colours into tools for writing, drawing and communication. Rin Purple expresses that philosophy through the quiet depth of Mount Fuji at twilight.
“At twilight, even stillness finds a colour of its own.”
