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YLyoo Regular user South Korea 108 Posts |
I was shown by a friend an application of the frixion pen to make a signature disappear.
If I had a pen that did the opposite (invisible ink that appears with heat) I will be able to make a picture/signature change! But I don't like the color of lemon juice. Is there an invisible ink that turns black when heated? Thanks, Tim. |
J-Mac Inner circle Ridley Park, PA 5338 Posts |
You can do what you ask with a Frixion pen or marker. Use it in conjunction with a regular pen. Think about it.
Jim |
YLyoo Regular user South Korea 108 Posts |
Dear J-Mac,
I have given it a lot of thought, But I cannot figure out a way. Maybe using frixion on black paper I could make a signature appear. But for a signature to morph to another I would need some kind of ink that appears with heat. I was thinking about using B*rn N*tice, but does this work with paper? Thanks, Tim. |
J-Mac Inner circle Ridley Park, PA 5338 Posts |
Tim,
Methinks you are missing my point. I sent you a PM. :) Jim |
durgy Elite user Toronto 402 Posts |
Also looking for something similar.
any tips would be appreciated. Cheers Durgy |
george1953 Inner circle Mallorca (Spain) 5943 Posts |
In the book stone, friction, fire , I think that's what its called, I am in hospital at the moment so can't check, there are many uses for these pens described, well worth a look
By failing to prepare, we are preparing to fail.
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Christopher Taylor V.I.P. British Columbia Canada 2315 Posts |
You can write with a weak solution of cobalt chloride on off-white parchment. It is not hard to find (try eBay) and is not dangerous to work with. When heat is applied, the writing will not appear in black but a very nice blue.
Christopher |
Glenn Watson Special user 781 Posts |
Get well,George . I hope it is a short stay.
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The Magic Cafe Forum Index » » Rings, strings & things » » Invisible ink that appears with heat? (1 Likes) |
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