FIELD: printing industry.
SUBSTANCE: invention relates to data medium, in particular to secure document or document with protection element, having high extent of counterfeit protection, having the base (20) and coating (12) applied onto the base, where marking is applied in the form of ornaments, letter symbols, digits or images by means of laser radiation. According to invention, this coating (12) contains layer (22), which absorbs laser radiation, and printing layer (24) arranged on top of absorbing layer, and at least partially transparent for laser radiation. Besides, printing base is exposed to pressing in process or after application of at least partially transparent later (24). Printing press (250) with laser system (270) intended for realisation of above method, where laser system is located higher than printing cylinder (258) of press for action at data medium, which should be marked on printing cylinder by means of laser radiation.
EFFECT: improved extent of protection.
42 cl, 14 dwg
