Sicpa Holding Sa

China Banknote Sicpa Security Ink Co., Ltd.

Edgar Mueller

Claude-Alain Despland

Mathieu Schmid

Pierre Degott

Evgeny Loginov

Cédric Amerasinghe

Anton Bleikolm

Marlyse Demartin Maeder

Neda Nikseresht Ghanepour

Albert Stichelberger

Jing Li

Thomas Tiller

Olivier Rozumek

Patrick Veya

Frédéric Gremaud

Xavier Marguerettaz

Milan Vasic

Patrick Magnin

Gebhard Ritter

Christophe Schaller

Olivier Lefebvre

Sylvain Jaquier

Nathalie Benninger

Alexandre Sudan

Xiang Li

Olivier Bremond

Maurice Amon

Cédric Amersinghe

The present invention relates to the field of protecting value documents and value commercial goods against counterfeit and illegal reproduction. In particular, the present invention provides processes for producing optical effect layers (OELs) comprising non-spherical magnetic or magnetizable particles and comprising a motif made of at least two areas made of a single applied and cured layer, said motif being obtained by using a selective curing performed by irradiation with an actinic radiation LED source (x) comprising an array of individually addressable actinic radiation emitters.

Device for producing optical effect layers

The invention relates to the field of the protection of security documents such as for example banknotes and identity documents against counterfeit and illegal reproduction. In particular, the present invention provides processes for optical effect layers (OEL) exhibiting one or more indicia using a magnetic assembly comprising i) a soft magnetic plate (x) comprising a) one or more voids (V) and b) one or more dipole magnets (x-), wherein the one or more dipole magnets (x-) are disposed within the one or more voids (V) and/or are facing said one or more voids (V), and/or one or more pairs of two dipole magnets (x-), wherein the dipole magnets (x-) of the one or more pairs are disposed below the soft magnetic plate (x) and are spaced apart from the one or more voids (V).

Assemblies and processes for producing optical effect layers comprising oriented magnetic or magnetizable pigment particles

The present invention relates to the field of optical effect layers (OEL) including magnetically oriented non-spherical oblate magnetic or magnetizable pigment particles on a substrate, spinneable magnetic assemblies and processes for producing optical effect layers (OEL). In particular, the present invention relates to spinneable magnetic assemblies and processes for producing OELs as anti-counterfeit means on security documents or security articles or for decorative purposes.

Assemblies and processes for producing optical effect layers comprising oriented non-spherical oblate magnetic or magnetizable pigment particles

Process for producing optical effect layers

The invention relates to the field of the protection of security documents such as for example banknotes and identity documents against counterfeit and illegal reproduction. In particular, the present invention provides processes for optical effect layers (OEL) exhibiting two or more nested indicia using a magnetic assembly comprising i) a soft magnetic plate (x) comprising a) one or more voids (V) and b) one or more indentations (I) and/or one or more protrusions (P), and ii) one or more dipole magnets (x).

Processes for producing optical effects layers

The present invention relates to the field of optical effect layers (OEL) comprising magnetically oriented non-spherical oblate magnetic or magnetizable pigment particles on a substrate, spinneable magnetic assemblies and processes for producing said optical effect layers (OEL). In particular, the present invention relates to spinneable magnetic assemblies and processes for producing said OELs as anti-counterfeit means on security documents or security articles or for decorative purposes.

The present invention relates to the field of apparatuses and methods of producing optical effect layers (OEL) comprising magnetically oriented magnetic or magnetizable pigment particles. In particular, the present invention relates to apparatuses comprising a first block (A) comprising a holder () having mounted thereto a stator comprising n magnet-wire coils () disposed in n annular slots of a magnetic-field-guiding stator core (), and a second block (B) comprising a casing (), a rotor protection plate (), a rotor comprising m permanent magnet poles () of alternating polarity arranged around a circle in or on one side of a rotor disc (), and a permanent magnet assembly (PMA) (), wherein the holder (A) is configured to be removeably fixed to a base of a rotating magnetic orienting cylinder (RMC) or a flatbed (FB) magnetic orienting printing unit and the second block (B) is removeably fixed to the first block (A).

Apparatuses and methods for producing optical effect layers

The present invention relates to the field of the protection of value documents and value commercial goods. In particular, the invention relates to methods of making an optical effect layer (OEL) associated with a substrate, the method comprising i) providing a substrate associated with a coating composition comprising magnetic or magnetizable pigment particles; ii) providing a permanent magnet assembly producing a first magnetic field; iii) providing an electromagnet assembly including a winding assembly and drive producing an oscillating or rotating second magnetic field that interacts with the first magnetic field to spin the permanent magnet assembly to rotate the first magnetic field; and iv) applying the first magnetic field while the first magnetic field rotates by spinning of the permanent magnet assembly to aggregately orient the magnetic or magnetizable pigment particles to create the optical effect layer. The invention also relates to apparatuses for creating an OEL.

Devices for producing optical effect layers

Disclosure relates to a method and a device for determining the distribution and orientation of platelet-shaped pigment particles over an extended region of an optical effect layer (OEL). The method includes a) taking at least one image, under illumination of said extended region of the optical effect layer with collimated light incident from at least one first direction, of reflected light of said extended region of the optical effect layer from at least one second direction, using a telecentric lens-and-camera assembly having the optical axis of the telecentric lens oriented along said second direction, and b) processing the at least one image of said extended region to extract quantitative particle distribution and orientation information. The device includes a) a collimated light source for illuminating an extended region of the optical effect layer with collimated light from at least one first direction, and b) a telecentric lens-and-camera assembly for collecting the light reflected from said extended region of the optical effect layer into at least one second direction.

Method and device for determining the orientation of pigment particles over an extended region of an optically effect layer

Disclosed is a device for the authentication of an optically variable entity exhibiting a color shift with changing viewing-angle, the device comprising a plate of light-refractive material, said plate having two surfaces and an array of light-refracting protrusions or recesses on at least one of said surfaces, and being disposed in said device such as to provide, aside each other, a direct view and a view through said plate onto at least parts of said optically variable entity, said view through said plate being an angularly deflected view, resulting from light refraction at said protrusions or recesses. Further disclosed is a method for authenticating an optically variable entity, as well as the use of a plate having two parallel surfaces and an array of positive or negative light-refracting protrusions or recesses on at least one of said surfaces for authenticating an optically variable entity.

Optically variable entity authenticating device and method

The present invention concerns a security thread or stripe for the incorporation into or onto a value-document or currency substrate, as well as a method and means of making such thread or stripe. The thread or stripe comprises a plastic foil which carries a hardened coating comprising oriented magnetic or magnetizable pigment particles, the orientation of said pigment particles representing graphic information. Preferred are optically variable magnetic or magnetizable pigment particles. Said hardened coating may also be comprised between a first and a second plastic foil. Said graphic information is a repetitive seamless pattern of suitable repetition length, which is produced using a magnetic orienting cylinder having a corresponding repetitive seamless magnetic field pattern. A magnetic orienting cylinder and a process for process for producing such magnetic orienting cylinder are also disclosed. The process comprises the coating of a cylindrical support body with a polymer material comprising a high-coercivity permanent-magnetic powder as a filler material, and magnetizing or engraving the seamless outer cylinder surface to form on the cylinder a repetitive seamless magnetic field pattern.

Security thread or stripe comprising oriented magnetic particles in ink, and method and means for producing same

Paired optically variable security element which includes first and second optically variable thin-film multilayer interference devices in the form of optically variable foils or of printings made with inks having optically variable interference pigments. The first and second interference devices exhibit spectral matching at a determined angle of incidence. Sets of optically variable devices and of coating compositions include optically variable pigments for the production of the paired optically variable security element. Moreover, the security element can be used for the protection of documents and goods, and security documents and goods.

Paired optically variable security element

Device and process for producing indicia comprising magnetically oriented magnetic or magnetizable particles in ink or coating composition on a sheet of substrate material. Device includes a flat-bed screen-printing unit having a flat printing screen and a printing platen for receiving a sheet. Printing platen has an upper surface facing the printing screen and a first direction along its upper surface along which said sheet is unloadable, and a magnetic orienting unit having multiple magnet assemblies. Magnetic orienting unit is disposed below upper surface of the printing platen, the multiple magnet assemblies are disposed along first direction, and all of the magnet assemblies are concomitantly movable from a first position away from the upper surface of the printing platen to a second position close to the upper surface of the printing platen. The magnetic orienting unit having one or more magnet assemblies is usable as a stand-alone flat-bed magnetization device.

Magnetic orienting and printing

Pasty ink for the engraved steel die printing process, having a viscosity value above 3 Pa&#xb7;s, preferably above 5 Pa&#xb7;s at 40&#xb0; C., and comprising an infrared absorbing material, wherein said infrared absorbing material is a transition element compound whose IR-absorption is a consequence of electronic transitions within the d-shell of transition element atoms or ions.

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Lausanne, Switzerland

Edgar Mueller