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551 Pure Black

Ostrich is one of the 713 brands in Inktend's built-in ink catalog.

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Specs

Color familyBlacks & greys

Approx. hex#000000

SheenNot typically noted

BrandOstrich

Paper & pairing

As a near-neutral tone, it reads as professional and safe for anything from journaling to signatures. This ink will behave predictably on most fountain-pen-friendly paper. Cheap, highly absorbent paper (standard copier paper) will dull any ink's saturation and can cause feathering or bleed-through with wetter nibs.

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About Ostrich

Ostrich (Tuoniao) is one of China's oldest ink manufacturers, established in Tianjin in 1935 and later operating as Tianjin Ostrich Ink Co., Ltd. The company developed its blue-black iron gall ink in 1942 and today produces fountain pen, calligraphy and other inks, exporting to some twenty countries and regions across Europe, America and Asia.

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Storing and using the bottle

Bottled fountain pen ink has an effectively long shelf life when kept capped and out of direct sunlight: most inks remain usable for years. The main risk isn't the ink spoiling, it's a pen sitting inked and unused for weeks: that's what causes clogs, not the ink's age.

Frequently asked questions

What color family is 551 Pure Black?

551 Pure Black falls into Inktend's blacks & greys family based on its typical swatch color.

Does 551 Pure Black have sheen?

551 Pure Black is not typically noted for sheen. If you want that effect, browse similarly colored inks tagged with sheen in the ink library.

How should I store a bottle of 551 Pure Black?

Years, easily, as long as it stays capped and out of direct sunlight. The thing that actually shortens an ink's usable life is sitting unused inside a pen, not sitting on a shelf.

What paper works best with 551 Pure Black?

It behaves predictably on most fountain-pen-friendly paper. Stick to something reasonably absorbent-resistant, since cheap copier paper dulls saturation and can feather.

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Color shown is a close digital approximation of a typical swatch, not a calibrated color match.