For example, I print a page off that contains my name and biography about myself. I want to prevent my name from being photocopied, so is there a substance I can paint over my name with that will keep it from being photocopied?
2007-07-25 06:10:17 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
I think the other responses didn't really know what you were asking. You want something that is invisible to the eye that will block the copier from copying what is underneath the dye that you use. That is a very interesting idea. I would look for something that is colorless but has a strong fluorescence in the blue or violet. I'm not sure it will really work though. Be careful not to spread toxic stuff all over the copy machine.
2007-07-25 07:53:51 · answer #1 · answered by Fly On The Wall 7 · 0⤊ 1⤋
Well, you can either use white out, or a black magic marker.
The problem is that photocopiers these days use white light. Old photocopiers used infra-red, and an infra-red dye could block it, but they went out of service long ago. Modern copiers using white light aren't as easily fooled by a coating that is transparent.
Some copiers might have a bit of trouble with a transparent glossy coating -- you'd have to test yours to see if it worked -- but that's increasingly rare.
Your best bet is to edit your document to eliminate the offending portions, and reprint it before reproducing it.
2007-07-25 06:16:17 · answer #2 · answered by Dave_Stark 7 · 1⤊ 0⤋
Why not use the white correcting fluid used by all typists? Only thing is, it is difficult to remove (there is a fluid) and may also remove the original letters. So, use a good photocopy with the necessary corrections.
2007-07-25 06:15:02 · answer #3 · answered by Swamy 7 · 0⤊ 0⤋
yup its called white out
2007-07-25 06:17:31 · answer #4 · answered by Anonymous · 0⤊ 0⤋