FIELD: printing industry.
SUBSTANCE: specified protective strip is made of sectors, where interrupted background is visible, made of dots of image arranged in space, besides, symbol defined repeated absence of points. Dots are arranged so that it is impossible to differentiate them, at the same time space between dots becomes unnoticeable for unaided eye. Suggested protective strip has image, which is difficult to reproduce by optical means.
EFFECT: improved counterfeit protection of an important document.
6 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| SECURITY PAPER, AND METHOD OF ITS MANUFACTURING AND FRAUD RESISTANT DOCUMENT OBTAINED USING ABOVE MENTIONED PAPER | 2009 |
|
RU2494185C2 |
| PROTECTIVE STRIP AND COUNTERFEIT-PROTECTED PAPER | 2005 |
|
RU2397874C2 |
| PROTECTIVE MEMBER FOR VALUABLE PAPER | 1998 |
|
RU2189413C2 |
| PROTECTED PAPER OR PAPER CONTAINING HIGHLY RESISTANT SYNTHETIC ELEMENTS AND METHOD FOR PRODUCTION OF ABOVE SPECIFIED PAPERS | 2005 |
|
RU2397875C2 |
| VALUABLE DOCUMENT WITH CORRESPONDING MATTE AND GLOSSY PROTECTIVE LAYERS | 2011 |
|
RU2569268C2 |
| PROTECTIVE ELEMENT WITH ACHROMATIC CHARACTERISTICS | 2011 |
|
RU2591770C2 |
| DEVELOPMENTS IN PROTECTIVE SUBSTRATES | 2006 |
|
RU2393099C2 |
| STRIP FOR DOCUMENT PROTECTION AND PROTECTED DOCUMENT | 2004 |
|
RU2337012C2 |
| PROTECTIVE STRIP AND SECURED DOCUMENT CONTAINING SUCH STRIP | 2015 |
|
RU2671095C2 |
| METHOD OF PRODUCTION OF COUNTERFEIT-PROOF PAPERS, SCRATCH-OFF PRINTING MACHINE AND COUNTERFEIT-PROOF PAPER | 2011 |
|
RU2564608C2 |
