FIELD: marking and identification of protected articles, such as bank-notes, service papers, labels, foil, fiber, card or industrial products.
SUBSTANCE: proposed printing ink contains dyes or pigments of expanded or hyperchromatic color space which is not reproduced by means of standard 4-color reproducing equipment. Identification of marking includes mathematical conversion of non-processed spectral information into statically independent hyperchromatic coordinates and comparison of selected hyperchromatic coordinates with respective standard magnitudes. Specification gives also description of printing inks and method of marking and identification of articles.
EFFECT: enhanced efficiency.
25 cl, 6 dwg, 2 tbl, 4 ex
| Title | Year | Author | Number |
|---|---|---|---|
| SET OF PRINTING INK, PRINTED ITEM, METHOD OF PRINTING AND APPLICATION OF DYE | 2002 |
|
RU2292370C2 |
| DATA MEDIUM AND METHOD FOR ITS MANUFACTURING | 2007 |
|
RU2424909C2 |
| IMPORTANT DOCUMENT AND PROTECTIVE DESIGNATION WITH MARKING SUBSTANCE | 2002 |
|
RU2305866C2 |
| METHOD OF IMPORTANT DOCUMENT COUNTERFEIT PROTECTION, COUNTERFEIT-PROOF IMPORTANT DOCUMENT, METHOD TO IDENTIFY ITS AUTHENTICITY AND DEVICE TO INSPECT AUTHENTICITY OF IMPORTANT DOCUMENT | 2010 |
|
RU2425757C1 |
| IMPROVEMENTS IN PRINTING INKS AND IMPROVEMENTS CONCERNING PRINTING INKS | 2002 |
|
RU2289599C2 |
| PRINTING INK FOR PROTECTION OF PRODUCTS AGAINST FALSIFICATION | 2005 |
|
RU2294949C1 |
| COMPOSITE MATERIAL FOR MARKING A MATERIAL OBJECT | 2019 |
|
RU2725599C1 |
| PAIRED OPTICALLY VARIABLE PROTECTIVE ELEMENT WITH CHARACTERISTIC REFLECTED RADIATION WAVELENGTHS | 2009 |
|
RU2517546C2 |
| PROTECTIVE PAINTS AND MACHINE-READABLE SECURITY FEATURES | 2020 |
|
RU2819116C2 |
| PAPER BASES CONTAINING SURFACTANT PIGMENTS AND METHODS FOR MAKING AND USING THE SAME | 2020 |
|
RU2779487C1 |
