FIELD: information protection.
SUBSTANCE: invention can be used for the protection of documents from the illegal reproduction. A device for obtaining on substrate an optical-effect layer (OEL) containing a composition curable under the effect of radiation, containing non-spherical flattened magnetic or magnetized pigment particles, includes a rotating magnetic assembly, the axis of rotation of which is perpendicular to the substrate surface. The rotating magnetic assembly contains the first and the second devices generating a magnetic field. The first device contains at least one pair of rod dipole magnets embedded in a carrying matrix, directions of magnetic fields of which are opposite, and magnetic axes of “North-South” direction are parallel to the axis of rotation of the magnetic assembly. The second device contains a dipole magnet, the magnetic axis of “North-South” direction of which is perpendicular to the axis of rotation. The projection of a line, in which rod dipole magnets of the first device are located, and the projection of the magnetic axis of the second device form, along the axis of rotation, to a plane perpendicular to the axis of rotation, an angle (Ω), which is in the range from 5° to 175° or in the range from -5° to -175°. A method for obtaining an optical-effect layer is also proposed.
EFFECT: claimed group of inventions provides for improvement of the reliability of protection of document authenticity.
7 cl, 11 dwg, 1 tbl, 6 ex
Title |
Year |
Author |
Number |
ASSEMBLIES AND METHODS FOR OBTAINING LAYERS WITH OPTICAL EFFECT CONTAINING ORIENTED NON-SPHERICAL FLATTENED MAGNETIC OR MAGNETIZED PIGMENT PARTICLES |
2018 |
- Amerasinghe, Cedric
- Mueller, Edgar
- Loginov, Evgeny
- Schmid, Mathieu
- Despland, Claude-Alain
|
RU2770581C2 |
ASSEMBLIES AND METHODS FOR OBTAINING LAYERS WITH OPTICAL EFFECT CONTAINING ORIENTED NON-SPHERICAL FLATTENED MAGNETIC OR MAGNETIZED PIGMENT PARTICLES |
2018 |
- Amerasinghe, Cedric
- Mueller, Edgar
- Loginov, Evgeny
- Schmid, Mathieu
- Despland, Claude-Alain
|
RU2770525C2 |
DEVICES AND METHODS FOR PRODUCING LAYERS WITH AN OPTICAL EFFECT, CONTAINING ORIENTED NON-SPHERICAL MAGNETIC OR MAGNETIZABLE PARTICLES OF A PIGMENT |
2017 |
- Loginov, Evgeny
- Schmid, Mathieu
- Despland, Claude-Alain
|
RU2723171C2 |
MAGNETIC ASSEMBLIES, DEVICES, AND METHODS FOR PRODUCTION OF LAYERS WITH OPTICAL EFFECT, CONTAINING ORIENTED NON-SPHERICAL MAGNETIC OR MAGNETIZABLE PIGMENT PARTICLES |
2019 |
- Amerasinghe, Cedric
- Schmid, Mathieu
- Despland, Claude-Alain
|
RU2788601C2 |
DEVICES AND METHODS FOR PRODUCING LAYERS WITH OPTICAL EFFECT, CONTAINING ORIENTED NON-SPHERICAL MAGNETIC OR MAGNETISABLE PARTICLES OF PIGMENT |
2016 |
- Schmid, Mathieu
- Despland, Claude-Alain
- Loginov, Evgeny
|
RU2715166C2 |
MAGNETIC ASSEMBLY AND METHODS FOR OBTAINING OPTICAL EFFECT LAYERS CONTAINING ORIENTED NON-SPHERICAL MAGNETIC OR MAGNETISABLE PIGMENT PARTICLES |
2020 |
- Loginov, Evgenij
- Despland, Klod-Alen
|
RU2798824C2 |
DEVICES AND METHODS FOR PRODUCING LAYERS WITH AN OPTICAL EFFECT CONTAINING ORIENTED NON-SPHERICAL MAGNETIC OR MAGNETIZABLE PIGMENT PARTICLES |
2017 |
- Loginov, Evgeny
- Schmid, Mathieu
- Despland, Claude-Alain
|
RU2748749C2 |
MAGNETIC ASSEMBLIES AND METHODS FOR PRODUCING LAYERS WITH OPTICAL EFFECT CONTAINING ORIENTED NON-SPHERICAL MAGNETIC OR MAGNETISABLE PARTICLES OF PIGMENT |
2016 |
- Loginov, Evgenij
- Schmid, Mathieu
- Despland, Claude-Alain
|
RU2732859C2 |
METHOD FOR OBTAINING LAYERS WITH OPTICAL EFFECT |
2019 |
- Loginov, Evgeny
- Schmid, Mathieu
- Mueller, Edgar
- Despland, Claude-Alain
|
RU2798616C2 |
PROCESS FOR PRODUCING EFFECTS LAYERS |
2014 |
- Schmid, Mathieu
- Despland, Claude-Alain
- Loginov, Evgeny
- Amerasinghe, Cedric
- Degott, Pierre
|
RU2648063C1 |