FIELD: creation of means for protecting valuable documents.
SUBSTANCE: method includes applying at least two materials with varying resistance to laser emission adjacently with each other onto substrate, having greater resistance to laser radiation compared to each one of applied materials, and following processing of applied materials with laser beam, which is sent via given trajectory, for changing a part of each applied material by sublimation by means of affecting it with aforementioned laser beam.
EFFECT: provision of extremely technically complex document manufacturing process, resulting in prevention of forgeries.
2 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD AND DEVICE TO PRODUCE IDENTIFICATION MARKS ON PROTECTED DOCUMENTS | 2005 |
|
RU2367579C2 |
| SECURITY PAPER WITH SERIAL NUMBER | 2005 |
|
RU2383444C2 |
| METHOD AND DEVICE FOR PROVIDING MARKING OF VALUABLE PAPERS | 2005 |
|
RU2372205C2 |
| MULTILAYERED POLYMERIC PRODUCT, SUCH AS IDENTIFICATION DOCUMENT | 2014 |
|
RU2566421C1 |
| COVERED DOCUMENT | 2006 |
|
RU2439235C2 |
| VALUABLE DOCUMENT | 2005 |
|
RU2381906C2 |
| DATA MEDIUM AND METHOD FOR ITS MANUFACTURING | 2006 |
|
RU2407651C2 |
| PROTECTED DOCUMENT | 2019 |
|
RU2775784C2 |
| DATA CARRIER HAVING SECURITY FEATURE AND METHOD OF MAKING SAID CARRIER | 2005 |
|
RU2384884C2 |
| PROTECTIVE ELEMENT FOR BANKNOTES OR VALUABLE DOCUMENTS | 2006 |
|
RU2396601C2 |
