FIELD: printing industry.
SUBSTANCE: invention relates to a data medium and method for its manufacturing, comprising a visually perceived or machine-readable identifier in the form of patterns, letters, figures or images. According to the specified method, a data medium is provided, which comprises a base of the data medium, and a marking layer is applied onto the data medium base. At the same time the identifiers are made in the marking layer by means of laser modification of a substance, which has laser-modified criteria and is contained in the marking layer, by means of short laser pulses. The identifiers are arranged with the help of a marking laser with wave length, on which the substance with laser-modified criteria does not substantially show absorption or shows only low absorption.
EFFECT: invention provides for development of a data medium with an individual identifier, which has high extent of counterfeit protection.
29 cl, 8 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| LAYERED IMPORTANT DOCUMENT CONTAINING PAINT MIXTURE IN ONE OF ITS LAYERS | 2005 |
|
RU2361745C2 |
| DATA MEDIUM AND METHOD FOR ITS MANUFACTURING | 2006 |
|
RU2407651C2 |
| DATA CARRIER HAVING SECURITY FEATURE AND METHOD OF MAKING SAID CARRIER | 2005 |
|
RU2384884C2 |
| PROTECTION PROPERTY AND METHOD FOR ITS MANUFACTURE | 2008 |
|
RU2464177C2 |
| DATA MEDIUM HAVING PORTION WITH DISTINCTIVE FEATURE | 2011 |
|
RU2520073C1 |
| SECURITY ELEMENT WITH COMPUTER-READABLE CODE | 2009 |
|
RU2527757C2 |
| SECURITY PAPER WITH SERIAL NUMBER | 2005 |
|
RU2383444C2 |
| DATA MEDIUM WITH PRINTED MAGNETIC PROTECTIVE FEATURE WITH DIFFERENT MAGNETISATION | 2009 |
|
RU2498906C2 |
| METHOD OF PRODUCING DATA CARRIER PRINTED BY MEANS OF LASER, DATA CARRIER PRODUCED BY THE METHOD AND BLANK FOR THE CARRIER | 2001 |
|
RU2267406C2 |
| PROTECTIVE ELEMENT WITH VARIABLE OPTICAL PROPERTIES | 2007 |
|
RU2429978C2 |
