What’s so great about those pigmented/carbon inks?
Inks like Platinum Carbon Black and Sailor Kiwa Guro Pigmented Nano Black are nice inks because they are so dark and intense, especially for those who like a really solid color. They’re great for artists who use them in watercolor drawings, those who sketch, and if you need an ink that is water-resistant. The downside is these inks contain fine particles that can clog your pen’s feed, so make sure to clean your pen regularly and thoroughly if you use these inks!