The Magic Café
Username:
Password:
[ Lost Password ]
  [ Forgot Username ]
The Magic Cafe Forum Index » » The Science of Magic » » Color-Changing Ink? (0 Likes) Printer Friendly Version

Dark Knight
View Profile
Loyal user
My troops are stationed at
272 Posts

Profile of Dark Knight
Many people are familiar with thermochromatic and light-sensitive inks that change color based on changes in temperature or light. Coors beer cans, "mood" rings, and color-changing nail polish are examples.

What I am looking for is a way to (invisibly) treat paper so that the ink from a single pen will look different depending on whether the ink is used on untreated paper or treated paper. For example, writing on the untreated paper, the ink will appear blue, while writing on the treated paper (with the same pen) the ink will appear red.

I have several uses for this that I would be happy to share if someone could point me in the right direction. There used to be (or still are) markers that write in one color, but when wiped with a clear substance, the ink would change color.

In essence, I'm looking for a pen that will write in two different colors without having to fiddle with the pen.

Thanks,
DK
The Magic Cafe Forum Index » » The Science of Magic » » Color-Changing Ink? (0 Likes)
[ Top of Page ]
All content & postings Copyright © 2001-2022 Steve Brooks. All Rights Reserved.
This page was created in 0.09 seconds requiring 5 database queries.
The views and comments expressed on The Magic Café
are not necessarily those of The Magic Café, Steve Brooks, or Steve Brooks Magic.
> Privacy Statement <

ROTFL Billions and billions served! ROTFL