DATA MEDIUM WITH HALFTONE IMAGE Russian patent published in 2010 - IPC B42D15/00 B41M3/14 B41C1/02

Abstract RU 2392125 C2

FIELD: printing industry.

SUBSTANCE: data medium comprises printed fragments of section of a certain tone, besides at least three printed fragments of section have various tones. At the same time one or more of various tones is formed by printed fragments of section visible with naked eye as fully printed, but having a certain share of non-printed white sections.

EFFECT: development of data medium having high extent of counterfeit protection.

29 cl, 8 dwg

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RU 2 392 125 C2

Authors

Adamtsik Rodzher

Bal'Dus Kristof

Majndl' Klaus

Frants Peter

Dates

2010-06-20—Published

2006-02-09—Filed