COATING COMPOSITION, SYSTEM INCLUDING THE COATING COMPOSITION, AND METHOD FOR PRODUCING SECURE IMAGES
    5.
    发明公开

    公开(公告)号:EP2358524A1

    公开(公告)日:2011-08-24

    申请号:EP09837928.2

    申请日:2009-12-17

    申请人: Troy Group, Inc.

    IPC分类号: B32B7/14

    摘要: A coating composition, system, and method for printing documents that are difficult to chemically or physically forge and that are easy to visually verify are disclosed. The system includes a substrate, a toner, including a colorant and a dye, a primary migration-enhancing coating applied using an offset printing process and optionally a secondary migration-enhancing coating applied using an offset printing process. An image formed using the toner of the invention is readily verified by comparing a colorant-formed image and a dye-formed image. In addition, if a solvent is used in an attempt to alter the printed image on the substrate, the dye migrates or diffuses to indicate tampering with the document.

    BESCHICHTETES PAPIER ALS DRUCKSTOFF
    10.
    发明公开
    BESCHICHTETES PAPIER ALS DRUCKSTOFF 审中-公开
    铜版纸印刷材料

    公开(公告)号:EP1670990A1

    公开(公告)日:2006-06-21

    申请号:EP04763180.9

    申请日:2004-07-13

    申请人: M-real Oyj

    IPC分类号: D21H19/44 D21H23/22

    摘要: The invention relates to paper comprising: a) a paper substrate and b) a preparation completely covering at least one side of the paper substrate, said preparation containing at least one surfactant and at least one pigment having a particle diameter of 1 - 500 nm. The preparation contains binding agents, whereby the ratio thereof to the pigment is a maximum of 5 weight parts of binding agent: 100 weight parts of pigment (respectively in relation to the solid content). The invention also relates to a method for the production thereof.