OPTICAL SECURITY DEVICE BASED ON A SURFACE OF REVOLUTION

    公开(公告)号:US20240319654A1

    公开(公告)日:2024-09-26

    申请号:US18678195

    申请日:2024-05-30

    CPC classification number: G03G21/043 B41M3/146 G07D7/12

    Abstract: An optical article printed on a substrate may include an organic binder; and a plurality of reflective magnetic platelets provided in the organic binder, wherein the plurality of reflective magnetic platelets are substantially aligned in accordance with at least part of a surface of revolution, and wherein the plurality of reflective magnetic platelets are aligned to cause a first reflective effect of the optical article when the substrate is rotated around a first axis and to cause a second reflective effect of the optical article when the substrate is rotated around a second axis, wherein the first reflective effect is different from the second reflective effect.

    ELECTROSTATIC PRINTING METHOD
    24.
    发明申请

    公开(公告)号:US20230129906A1

    公开(公告)日:2023-04-27

    申请号:US17507537

    申请日:2021-10-21

    Abstract: A method of printing a toner, including: rotating a cylinder having a printing plate with a fixed pattern; transferring a toner from a vessel onto the fixed pattern of the printing plate, in which the toner includes a pigment with a metallic reflective layer; and transferring the toner onto a substrate; in which the fixed pattern defines select portions of an image; and in which the toner correlates to the selected portions of the image is disclosed.

    OPTICAL SECURITY DEVICE BASED ON A SURFACE OF REVOLUTION

    公开(公告)号:US20200050140A1

    公开(公告)日:2020-02-13

    申请号:US16102250

    申请日:2018-08-13

    Abstract: An optical article printed on a substrate may include an organic binder; and a plurality of reflective magnetic platelets provided in the organic binder, wherein the plurality of reflective magnetic platelets are substantially aligned in accordance with at least part of a surface of revolution, and wherein the plurality of reflective magnetic platelets are aligned to cause a first reflective effect of the optical article when the substrate is rotated around a first axis and to cause a second reflective effect of the optical article when the substrate is rotated around a second axis, wherein the first reflective effect is different from the second reflective effect.

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