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    MACHINE READABLE SECURITY FEATURES
    97.
    发明公开
    MACHINE READABLE SECURITY FEATURES 审中-公开

    公开(公告)号：US20240110072A1

    公开(公告)日：2024-04-04

    申请号：US18540316

    申请日：2023-12-14

    Applicant: SICPA HOLDING SA

    Inventor： Marlyse DEMARTIN MAEDER ,  Claude-Alain DESPLAND

    IPC: C09D11/101 ,  B41M3/14 ,  C09D11/033 ,  C09D11/037 ,  C09D11/322

    CPC classification number: C09D11/101 ,  B41M3/14 ,  B41M3/144 ,  C09D11/033 ,  C09D11/037 ,  C09D11/322

    Abstract: The present invention relates to the field of security inks suitable for printing machine readable security features on substrate, security documents or articles as well as machine readable security feature made from said security inks, and security documents comprising a machine readable security feature made from said security inks. In particular, the invention provides security inks comprising one or more IR absorbing materials selected from the group consisting of crystal water-free iron(II) orthophosphates of the general formula Fe3(PO4)2 and having a graftonite crystal structure, crystal water-free iron(II) metal orthophosphates, crystal water-free iron(II) metal phosphonates, crystal water-free iron(II) metal pyrophosphates, crystal water-free iron(II) metal metaphosphates of the general formula FeaMetb(POc)d, wherein said security ink is an oxidative drying security ink, a UV-Vis curable security ink, a UV-Vis curable security ink or a combination thereof.

    Method and device for reading a two-dimensional encoded pattern applied on a non-uniform background
    99.
    发明授权
    Method and device for reading a two-dimensional encoded pattern applied on a non-uniform background 有权

    公开(公告)号：US11847516B2

    公开(公告)日：2023-12-19

    申请号：US17786935

    申请日：2020-12-10

    Applicant: SICPA HOLDING SA

    Inventor： Eric Decoux

    IPC: G06K19/06

    CPC classification number: G06K19/06037 ,  G06K19/06093

    Abstract: The invention relates to a method and device for detecting and decoding a two-dimensional encoded pattern, e.g. of the Robust Encoding Pattern type (REP), even in case the pattern is applied on a non-uniform colored background of a surface of a substrate. The operations for decoding such an encoded pattern involve detecting the states of its symbols through a test pattern, checking that local differences between parameter values of the elements of the symbols are consistent with an allowed representation of the test pattern to assign via a one-to-one mapping the states of the symbols of the test pattern to the corresponding symbols of the encoded pattern, and decoding the encoded pattern based on the assigned representation of its symbols.

    METHODS FOR PRODUCING OPTICAL EFFECT LAYERS COMPRISING MAGNETIC OR MAGNETIZABLE PIGMENT PARTICLES
    100.
    发明公开
    METHODS FOR PRODUCING OPTICAL EFFECT LAYERS COMPRISING MAGNETIC OR MAGNETIZABLE PIGMENT PARTICLES 审中-公开

    公开(公告)号：US20230364639A1

    公开(公告)日：2023-11-16

    申请号：US18012538

    申请日：2021-03-25

    Applicant: SICPA HOLDING SA

    Inventor： Hervé PITTET ,  Thibaut MARTINI ,  Patrick VEYA ,  Riccardo RUGGERONE ,  Jean GARNIER

    IPC: B05D3/00 ,  B05D5/06

    CPC classification number: B05D3/207 ,  B05D5/067

    Abstract: 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 methods for producing optical effect layers (OELs) exhibiting one or more indicia (x30) on a substrate (x20), said method comprising a step of exposing a coating layer (x10) comprising non-spherical magnetic or magnetisable pigment particles to a magnetic field of a magnetic-field generating device so as to orient at least a part of the magnetic or magnetisable pigment particles; a step of applying a top coating composition on top of the coating layer (x10) and in the form of one or more indicia (x30), and a step of at least partially curing the coating layer (x10) and the one or more indicia (x30) with a curing unit (x50).

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