Metallic Pigment
Metallic pigments like aluminium and bronze are used as components of printing inks to produce surfaces with a metallic sheen. Metallic ink is not a security ink in the strict sense, as it is freely available to any commercial printer. Metallic ink is nevertheless a typical anti-copy ink, as a copy (including one produced by a desktop printer) cannot render the original effect.
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Metallic pigments like aluminium and bronze are used as components of printing inks to produce surfaces with a metallic sheen. Metallic ink is not a security ink in the strict sense, as it is freely available to any commercial printer. Metallic ink is nevertheless a typical anti-copy ink, as a copy (including one produced by a desktop printer) cannot render the original effect.
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