METHOD FOR PRODUCING AN ALUMINUM FOIL WITH INTEGRATED SECURITY FEATURES
    6.
    发明申请
    METHOD FOR PRODUCING AN ALUMINUM FOIL WITH INTEGRATED SECURITY FEATURES 审中-公开
    用于生产具有集成安全特征的铝箔的方法

    公开(公告)号:US20140322557A1

    公开(公告)日:2014-10-30

    申请号:US14346767

    申请日:2012-08-27

    IPC分类号: B21H8/00 B21B1/40 B21B1/22

    摘要: Method for producing an aluminum foil with integrated security features. An aluminum foil is rolled to a thickness of less than 150 μm in multiple cold rolling passes, and simultaneously a texture which runs in the rolling direction is produced on both faces of the foil. A loose composite formed from at least two of the aluminum foils, is fed into a pair of working rollers in a final cold rolling pass, wherein the relief-like surface structure which is produced in the rolling direction via a polishing process has been reduced by 10 to 50% with respect to the average roughness height in one region in a contrast- and motif-dependent manner on at least one roller surface in order to form a motif for a security feature. The security feature is transferred onto the aluminum foil face facing the roller surface, and the loose composite of aluminum foils is separated.

    摘要翻译: 具有集成安全特征的铝箔的制造方法。 在多次冷轧通过中,将铝箔轧制成小于150μm的厚度,同时在箔的两个面上同时产生沿轧制方向延伸的织构。 由至少两个铝箔形成的松散复合物在最终的冷轧道中被馈送到一对加工辊中,其中通过抛光工艺沿轧制方向产生的浮雕状表面结构已经通过 相对于一个区域中的平均粗糙度高度,在至少一个辊表面上以对比度和基序依赖的方式为10至50%,以形成用于安全特征的图案。 将安全特征转移到面对辊表面的铝箔表面上,铝箔的松散复合物被分离。