- 专利标题: LUMINESCENT SHEET AND FORGERY PREVENTION MEDIUM
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申请号: US15500164申请日: 2015-07-30
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公开(公告)号: US20170355216A1公开(公告)日: 2017-12-14
- 发明人: Jun SATO , Kohtaroh DANJOH
- 申请人: Dai Nippon Printing Co., Ltd.
- 申请人地址: JP Tokyo
- 专利权人: Dai Nippon Printing Co., Ltd.
- 当前专利权人: Dai Nippon Printing Co., Ltd.
- 当前专利权人地址: JP Tokyo
- 优先权: JP2014-157344 20140801; JP2014-166894 20140819; JP2014-196590 20140926; JP2014-196591 20140926; JP2014-196592 20140926
- 国际申请: PCT/JP2015/071620 WO 20150730
- 主分类号: B42D25/36
- IPC分类号: B42D25/36 ; C09K11/55 ; G09F3/02
摘要:
[Problem] To provide a luminescent sheet having an excellent light emission performance and capable of preventing forgery.[Solution] A luminescent sheet 1 has a first base material layer, at least one of recesses 3 and projections 4 having edges and formed on a first base material layer 2, and stress-luminescent parts each arranged at a location contacting with the edge. At least a part of the edges has a stress concentrated part where stress concentrates when stress is added to the first base material layer in a predetermined direction. The stress-luminescent part emits light having a predetermined wavelength with a light-emitting intensity depending on external load stress added to the stress concentrated part.
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