プラチナの超黒(チョウクロ)は、104年の歴史で最も黒いインクとして知られ、真の漆黒でマットな仕上がりを実現します。高い耐水性と耐フェード性を持ち、万年筆での滑らかなウェットフローですが、純水での定期清掃が必要です。ジャーナリングや手紙、長期保存文書に最適なアーカイバルインクです。
Platinum Chou Kuro Black Ink Review - The Pen Addict
Platinum Chou Kuro is described as the blackest black ink for fountain pens, offering intense blackness with a flat, matte finish, but requires careful maintenance using purified water to prevent issues.
Platinum Chou Kuro: Fountain Pen Ink Review
This incredibly dark black ink has a slight matte finish, high water resistance, high saturation, low shading, and medium wet flow, setting a new standard for permanent black inks.
Ink Review #2345: Platinum Chou Kuro
Platinum Chou Kuro is wet, super smooth, dries to a dark matte finish with high water resistance, no feathering, and medium show-through on various papers.
Ink Review: Platinum Chou Kuro - The Well-Appointed Desk
Platinum Chou Kuro is a pigmented waterproof ink that outperforms Platinum Carbon Black in darkness, with notes on challenging cleaning and inclusion of a special converter.
EFNIR: Platinum Chou Kuro - Ink Reviews - The Fountain Pen Network
This review covers Platinum Chou Kuro's performance, noting easy cleaning from non-porous surfaces and staining in cartridges appearing as a warm brownish grey.
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