Chemists fabricate novel rewritable paper
"Chemists have fabricated novel rewritable paper, one that is based on
the color switching property of commercial chemicals called redox dyes.
The dye forms the imaging layer of the paper. Printing is achieved by
using ultraviolet light to photobleach the dye, except the portions that
constitute the text on the paper. The new rewritable paper can be
erased and written on more than 20 times with no significant loss in
contrast and resolution."
[Science Daily]
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