A comparison of Kuretake Black Ink 60 vs Sumi Ink 60. They are also known as the Zig Cartoonist ink. They are marketed as manga drawing inks.

Text review BLACK INK 60
http://www.parkablogs.com/content/rev...

Text review SUMI INK 60
http://www.parkablogs.com/content/rev...

All black ink reviews:
http://www.parkablogs.com/picture/com...

All art product reviews:
http://www.parkablogs.com/content/lis...

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