FIELD: physics; signaling.
SUBSTANCE: invention relates to a method of making carrier material with at least one hidden identification mark. The method of making packaging aluminium foil with at least one hidden identification mark which is deposited and then closed in at least one area of the surface of the package aluminium foil involves closing one or more identification marks by stamping.
EFFECT: possibility of authentication of an object not only by a specialist but by an ordinary user.
13 cl, 2 dwg
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