Mulberry (Ubi 1663) is the full name of the ink. Ubi refers to purple yam and 1663 marks the Mindanao monarchies’ victory against the Spanish invaders.
The ink is a warm purple and has an average flow. Like the other Vinta ink I’ve tested, I encountered a gentle burping of ink a few times, just enough to notice a sudden darkening and thickening of the line. It happened about once every few pages. I’m not sure if it is the ink, the pen, the weather, or maybe a combination of all. It is also quite likely that you may not experience the burping issues I did, YMMV.
On Tomoe River paper,
- Shading: Yes
- Sheen: Unnoticeable, you have to really look for it
- Feathering: Nil
- Bleedthrough: Very Little
This was written with a TWSBI ECO-T medium nib.
Below are a couple of photos of how it looks when it was written on both sides of the paper.
Disclaimer: This ink was purchased by me and all opinions/photos are my own. This post was not sponsored.