发明名称 |
Method of producing a forgery prevention paper |
摘要 |
An object of the present invention is to provide a thin volume hologram sheet to be embedded sufficiently resistant to a mechanical stress such as a stress including a tensile stress, a shear stress and a compression stress at the time of processing even under a heating condition, a forgery prevention paper and a card using the same. The object is achieved by providing a volume hologram sheet to be embedded comprising a volume hologram layer, and a substrate disposed only on one side surface of the volume hologram layer using an adhesion means, wherein a peeling strength of the volume hologram layer and the substrate is 25 gf/25 mm or more. |
申请公布号 |
EP2530533(A1) |
申请公布日期 |
2012.12.05 |
申请号 |
EP20110734636 |
申请日期 |
2011.01.18 |
申请人 |
DAI NIPPON PRINTING CO., LTD. |
发明人 |
OIKAWA, NOBUKO;AZAKAMI, MINORU |
分类号 |
G03H1/00;B29C65/00;B29C65/48;B29C65/82;B29L17/00;B32B37/12;B42D25/328;B42D25/355;B42D25/41;C09D11/02;D21H21/42;G03H1/02;G09F3/00 |
主分类号 |
G03H1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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