Anonymous
Mar 26, 2026
Rating: 5/5
Commemorative edition worth it
The packaging is lovely, making it a great gift. The ink itself performs flawlessly in my medium-nib pens. No clogging issues after a month of use.
Description
Reviews
| Brand | - |
| Category | Stationery, Educational Electronics & Office Supplies / Pen Ink, Refills & Cartridges |
| Origin | - |
| Brand | Ostrich |
| Series | Ink Series 9 Commemorative Edition |
| Model Number | 901 |
| Color | Pure Black |
| Ink Type | Non-Carbon Dye-Based |
| Scent | Light Floral Fragrance |
| Volume | 60ml |
| Target Audience | Students and Calligraphy Enthusiasts |
| Flow Rating | Medium-Smooth |
| Country of Origin | China |
Anonymous
Mar 26, 2026
Rating: 5/5
Commemorative edition worth it
The packaging is lovely, making it a great gift. The ink itself performs flawlessly in my medium-nib pens. No clogging issues after a month of use.
Anonymous
Mar 23, 2026
Rating: 4/5
Great for students
Very reliable ink for school notes. It dries reasonably fast on standard notebook paper with minimal feathering. The only reason I didn't give 5 stars is that the bottle design is a bit tricky to fill with small converters.
Anonymous
Mar 19, 2026
Rating: 5/5
Beautiful scent and smooth flow
I bought this for my daily journaling. The black is deep and rich, not gray like some cheaper inks. The subtle floral scent makes writing feel like a luxury experience without being overwhelming.
Anonymous
Mar 18, 2026
Rating: 5/5
Perfect non-carbon black
I needed an ink that wouldn't stain my hands or clothes if I got messy, and this non-carbon formula is perfect. It cleans up easily with water but stays permanent enough for records once dry.
Anonymous
Mar 08, 2026
Rating: 4/5
Smooth writer
Very consistent flow. I use it in a fine nib pen for math equations and it doesn't blob. The shade of black is neutral, leaning slightly cool.
Anonymous
Mar 04, 2026
Rating: 3/5
Good but scent fades quickly
The ink writes well and the color is solid. However, I was hoping the scent would last longer on the page. It disappears almost immediately after application. Still a decent product for the price.
Q: Is this ink waterproof?
A: No, this is a non-carbon dye-based ink, so it is not waterproof. It will smear or wash away if exposed to water after drying.
Q: What is the shelf life of this ink once opened?
A: If stored in a cool, dark place with the cap tightly sealed, the ink should remain usable for several years. If you notice sediment or a change in smell, please discontinue use.
Q: Does the scent linger on the paper after drying?
A: The scent is designed to be noticeable while writing to enhance the experience, but it typically dissipates shortly after the ink dries on the page.
Q: Is this ink safe to use in vintage fountain pens?
A: Yes, as a non-carbon dye-based ink, it is generally safe for vintage pens provided they are cleaned regularly. However, we always recommend testing in a less valuable pen first.
Q: Can I mix this with other Ostrich ink colors?
A: While technically possible since they are dye-based, we do not recommend mixing different colors or series as it may alter the chemical balance and affect flow or color integrity.