September 23, 2020, 05:15:11 AM
Forum Rules: Read This Before Posting


Topic: Crook ink disappearing  (Read 279 times)

0 Members and 1 Guest are viewing this topic.

Offline Kongasm

  • Very New Member
  • *
  • Posts: 1
  • Mole Snacks: +0/-0
Crook ink disappearing
« on: July 03, 2020, 09:32:12 AM »
Crook ink that disappears within seconds After making a Signature ? -transparent
How would it be possible ?

Offline sjb

  • Global Moderator
  • Sr. Member
  • ***
  • Posts: 3488
  • Mole Snacks: +217/-42
  • Gender: Male
Re: Crook ink disappearing
« Reply #1 on: July 03, 2020, 10:38:04 AM »
Typically something like oxidation or other changes. Have a look at for instance https://www.stevespanglerscience.com/lab/experiments/secret-lemon-juice-messages/ or similar

Sponsored Links