Method for producing an aluminium foil with integrated security features
作者： Lambert Nekula , Adolf Schedl , Wilhelm Zuser , Martin Kornfeld , Christof Brunnthaller
DOI:
关键词: Grinding 、 Metallurgy 、 Materials science 、 Aluminium foil 、 Surface roughness
摘要: The invention relates to a method for producing an aluminium foil (4) and with integrated security features (6). An is rolled down thickness of less than 150 μm in plurality cold rolling passes, texturing (5a, 5b) that runs the direction being induced simultaneously on both surface sides (4a, 4b) foil. In final pass, fed working roller pair (8), which, at least one (11), relief-like structuring (11a) generated by grinding was reduced basis contrast motif region (7) 10 50% relative average roughness so as form feature (6) transferred side (2a) facing surface. (1) has glossy appearance (2a, 2b) such rises very clearly due its dull appearance.
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