Sicpa Holding Sa

Olivier Rozumek

Thomas Tiller

Anton Bleikolm

Frédéric Gremaud

Edgar M&uuml;ller

Xavier Marguerettaz

Vickie Aboutanos

Andrea Callegari

Brahim Kerkar

Aurélien Commeureuc

Pierre Degott

Tristan Jauzein

Edgar Müller

Haim Bretler

Philippe Amon

Cécile Pasquier

Edgar Mueller

Patrick Veya

Edgar Muller

Albert Amon

Olivier Brémond

Stéphanie Rascagneres

Pandelis Papadimitriou

Maurice A Amon

Olivier Bremond

Maurice Amon

Edgar MÜLLER

The present invention relates to a marking of polymeric liquid crystal material having determined optical characteristics allowing its authentication and reading by a machine and its authentication by the human eye. The marking is applied onto an item, good or article by a variable information printing process. The marking is in the form of indicia representing a unique code which allows for an easy authentication by the human eye and a secure tracking and tracing of the marked item, good or article throughout is life cycle.

Identification and authentication using polymeric liquid crystal material markings

Coding flake or film including at least two chiral liquid crystal polymer (CLCP) layers with a first CLCP layer that has a first detectable parameter and a second CLCP layer including a second detectable parameter; at least one additional layer including a third detectable parameter, the at least one additional layer comprising a material that is not a chiral liquid crystal polymer; and wherein at least the third detectable parameter is different from each of the first detectable parameter and the second detectable parameter.

Multilayer flake with high level of coding

The present invention relates to a marking on an item or substrate, which marking is based on a chiral nematic (also called cholesteric) liquid crystal precursor composition. Prior to curing the chiral liquid crystal precursor composition in the chiral liquid crystal state at least one optical property exhibited by the composition is modified by two modifying agents of different types in at least one area of the item or substrate.

Substrate with a modified liquid crystal polymer marking

The present invention relates to a marking of polymeric liquid crystal material having determined optical characteristics allowing its authentication and reading by a machine and its authentication by the human eye. The marking is applied onto an item, good or article by a variable information printing process. The marking is in the form of indicia representing a unique code which allows for an easy authentication by the human eye and a secure tracking and tracing of the marked item, good or article throughout its life cycle.

Identification and authentication using liquid crystal material markings

A liquid crystal polymer marking is obtainable by a process that comprises applying a chiral liquid crystal precursor composition onto a substrate, heating the composition to a chiral liquid crystal state, applying to at least one area of the precursor composition a modifying composition, if necessary, heating the at least one area to bring same to a modified liquid crystal state, and subsequently curing and/or polymerizing the resultant product. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

Modified marking based on chiral liquid crystal polymers

An item according to the invention comprises at least two data storage elements such as e.g. an RFID transponderand a barcode, wherein the latter is non-visible for the unaided human eye and comprises coded information. The invention allows for a backup of information between the two data storage elements, in order to prevent inadvertent or malicious data loss. Further aspects of the invention are related to the interdependent or the cooperative use of both storage elements in the framework of a product security tracking and tracing scheme.

Item carrying at least two data storage elements

The present invention relates to a method and a system for the local or remote authentication of an item, in particular a security document, with the help of a authenticating device, comprised in, connected to, or linked to mobile communication equipment. Said item carries a marking exhibiting a characteristic physical behavior in response to interrogating energy, such as electromagnetic radiation and/or electric or magnetic fields. Said marking may comprise physical and logical security elements, e.g. a barcode, or a characteristic particle or flake pattern, exhibiting a characteristic physical response.

Use of communication equipment and method for authenticating an item, unit and system for authenticating items, and authenticating device

The present invention relates to a printing ink comprising at least one film forming binder and plurality of at least one type of electrically conductive micro-wires wherein the mean length of said type of micro-wires is in a range of between 3 &#x3bc;m to 250 &#x3bc;m.

Printing ink, use of micro-wires as antennas in security documents, method for producing a security document and methods for authentication of security documents

A solid marking composition comprises a solid matrix containing at least one type of optically variable interference pigment flakes. The solid marking composition provides a document or article with a copy and counterfeit protection feature, and is preferably used in a writing instrument for applying hand-written anti-counterfeit markings and signatures.

Solid marking composition as writing means, a writing instrument, an optically variable marking layer and use of a plurality of optically variable pigments

The invention describes luminescent optically variable pigments (OVP), methods for obtaining such pigments, as well as the use of such pigments as security elements in inks, coatings and articles. The luminescence centers are preferably incorporated into the dielectric material of the OVP's optical<i>Fabry-Perot</i> resonance cavity, allowing for the machine-discrimination of luminescent OVP from simple mixtures of luminescents and non-luminescent OVP.

PIGMENTS HAVING A VIEWING ANGLE DEPENDENT SHIFT OF COLOR, METHOD FOR PRODUCING SAID PIGMENTS, USE OF SAID PIGMENTS IN SECURITY APPLICATIONS, COATING COMPOSITION COMPRISING SAID PIGMENTS AND A DETECTING DEVICE

Inorganic sheets ( ) of at least two surperposed layers are provided with one or more symbols ( ) which have a size of between 1 and 10 &mgr;m. The inorganic sheet is made up into pigment flakes ( ). The symbols on the pigment flakes ( ) allow a tracing of compositions such as printing inks or paintings and of substrates carrying such compositions.

Inorganic sheet carrying symbols for making pigments

The invention relates to optically variable pigments ( ) having a color shift between two distinct colours of any of the known designs. The pigments having incorporated a totally reflecting layer made by physical vapour deposition from aluminum alloy ( ). This pigment exhibits excellent chromaticity, corrosion resistance, particularly in any kind of coating composition or printing ink and especially when water is present.

OPTICALLY VARIABLE PIGMENTS PROVIDING A COLOR SHIFT BETWEEN TWO DISTINCT COLORS, COATING COMPOSITION COMPRISING THE SAME, METHOD FOR PRODUCING THE SAME AND SUBSTRATE COATED WITH THE COATING COMPOSITION

An ink composition containing at least two different types of optically variable pigments which produce a film or coating having a viewing angle dependent color shift.

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Le Pâquier-Montbarry, Switzerland

Olivier Rozumek