What brand of black ink does not block the pen?

Pens are generally the same ink as brands. For example, you use hero pen, with hero brand ink, Parker uses Parker ink, Bellagio pen has Bellagio ink, Montblanc has Montblanc ink, and so on. ...

Each ink has a different formula, and carbon ink is more likely to block pens, so it is not used much.

Nowadays, individuality is advocated, and so is ink painting. There are many kinds and colors. More professional ink manufacturers have ink color cards for consumers to compare.

The most famous China ostrich ink is made in China, and the more famous foreign inks are catfish noodles, Beric Pelikan, Parker Quinque, Montblanc, French J Elbim, British Diamine, Japanese Platinum, Baile and Syaraku.