FIELD: manufacture of bonds or banknotes.
SUBSTANCE: method involves applying transfer film onto paper document, said transfer film being film having adhesive layer or laminated film having adhesive layer and equipped with laser radiation sensitive layer; exposing multilayer body to laser radiation. This results in generation of laser-induced marking in laser radiation sensitive layer, provided, for example, through laser-induced whitening, laser-induced color alteration, or laser-induced blackening process. Laser-induced marking allows documents to be individualized.
EFFECT: enhanced protection of paper documents from counterfeit.
50 cl, 23 dwg
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