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Posted by Len Provisor
on April 4, 2024, 8:21 pm, in reply to "Platinum Chou Kuro Black Ink /Carbon Black"
Very comprehensive review on this ink with a note of caution about cleaning your pen after use. Claiming this is the blackest of all black inks on the market.
https://www.penaddict.com/blog/2023/10/30/platinum-chou-kuro-black-ink-review
At end of article is link to Platinum in depth technical analysis.
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