HOLOGRAM SHEET

申请公布号：JPH11254868(A)

申请号：JP19980059814

申请日期：1998.03.11

申请公布日期：1999.09.21

申请人：

MITSUBISHI PAPER MILLS LTD

发明人：ARAI TAKAO;HYODO KENJI

分类号：B42D15/10;B32B7/02;G03H1/18;(IPC1-7):B42D15/10

主分类号：B42D15/10

摘要：<p>PROBLEM TO BE SOLVED: To manufacture a hologram sheet of high visuality hard to be forged or duplicated. SOLUTION: Hologram patterns are formed on a hologram sheet by a heat source or electromagnet radiation, and a metal layer on which melting or sublimation is generated by the heat source or electromagnetic radiation is formed on a thermoplastic base. In that case, laser beams are used as the heat source or the electromagnetic radiation. A metal of the metal layer formed on the base is formed of one or more selected bismuth, zinc and titanium, and the thickness of the metal layer formed on the base is 5-500 nm.</p>

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