Jim Pingle

Father, geek, serial hobbyist.

Also in the mail today were fluorescent inks from AliExpress. Pretty neat. Not as impressive as the UV invisible ink, but still cool under UV. With wider nibs they could probably be highlighters.

Like the UV ink, they were ~$4-5 per 18ml. Different brand but still using Jellyfish on the labels.

The ~$4 Jinhao 82 pens arrived several days ago. Vaguely color matched, but also low cost+sacrificial in case the ink is not actually safe for fountain pens.

Photo of five bottles of ink in a row: Fluorescent red, orange, yellow, green, and pink. Below each bottle is a disassembled Jinhao 82 fountain pen that is similar in color to the ink: Transparent red, orange, yellow, green, and pink.
Six fountain pens in a row, horizontal. The top five are Jinhao 82 fountain pens. The bottom pen is a Penbbs 494. From top to bottom, the colors are: Orange, transparent red, yellow, green, pink, and the bottom pen is a clear demonstrator.
Photo of text on a page. The text is very light, but still visible. The lines contain: "Fl. Red" followed by "XX" and a couple looping lines. "Fl Orange" followed by "XX" and a couple looping lines, and then a doodle of a pumpkin. "Fl Yellow" followed by "XX" and a couple looping lines and then a doodle of a leaf. "Fl. Green" followed by a doodle of a pointed hat. "Fl. Pink" followed by a doodle of a piece of candy.
Photo of text on a page. The text is glowing under UV light and can be easily read. The lines contain: "Fl. Red" followed by "XX" and a couple looping lines. "Fl Orange" followed by "XX" and a couple looping lines, and then a doodle of a pumpkin. "Fl Yellow" followed by "XX" and a couple looping lines and then a doodle of a leaf. "Fl. Green" followed by a doodle of a pointed hat. "Fl. Pink" followed by a doodle of a piece of candy. At the bottom right of the photo is "Boo!" glowing in bright light blue

The side of the packaging implies it's safe for "pens" and separately mentions dip pens so maybe it's OK? Who knows. Seems to work so far. Your mileage may vary.

Photo of a bottle of ink in a plastic shell. The text on the shell is not quite in great English but read exactly as written: New.Writing Experience Not only anti-halo dyeing is the basis of ink quality. Highlighting color characteristics is more important. All products are manually prepared. Can be used for pens, dipping pens, soft brush and other conventional writing tools. Ensuring excellent characteristics is the goal and direction of product upgrading. The remaining text on the package is in other languages.
Photo of a paper towel with several blotches of ink glowing brightly in UV light. Visible are pink, green, yellow, orange, and red splotches.

In addition to the different pictures of Jellyfish they also have Jellyfish-related trivia on each bottle.

Collage of five ink bottles with the labels visible. Each bottle has text at the top "Banmi Fluorescent Ink 18ml", and the word "Fluorescent" in cursive going the left side. Each bottle has a barcode along the bottom. Bottle #1 contains pink ink, has a pinkish jellyfish picture, and reads: Bright Pink Jellyfish have some tentacles that can reach up to 20-30 meters in length Bottle #2 contains bright green ink, has a green jellyfish picture, and reads: Fluorescent green Jellyfish can reproduce both asexually and sexually Bottle #3 contains bright yellow ink, has a yellow jellyfish picture, and reads: Fluorescein Yellow Most jellyfish have a lifespan of only a few weeks or months Bottle #4 contains bright orange ink, has an orange jellyfish picture, and reads: Bright orange Jellyfish are distributed in oceans throughout the world and some species live in freshwater Bottle #5 contains bright red ink, has a red jellyfish picture, and reads: Brilliant red Jellyfish are invertebrates that can be traced back 650 million years

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