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Method of producing a piezochromic printing ink, piezochromic printing ink, and method of producing a security element
Method of producing a piezochromic printing ink, piezochromic printing ink, and method of producing a security element
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机译:压致变色印刷油墨的制造方法,压致变色印刷油墨和安全元件的制造方法
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摘要
The invention relates to a security element (2) for data-bearing devices (1), comprising a piezochromic liquid crystal material (3, 5) that is arranged within a layer.
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