发明名称 Retroreflective sheet for security and method for manufacturing the same
摘要 The present invention is directed to providing a retroreflective sheet for security that is difficult to be counterfeited, cannot be reused if once released, includes a printed image that can be identified visually regardless of an object to be attached such as a colored glass and also can be identified visually clearly even in the night time, and is directed to providing a method for manufacturing the same. The retroreflective sheet for security of the present invention includes: a surface layer 1 ; a binder layer 2 ; high-refractive-index glass beads 3 ; a print resin layer 4 ; a focusing layer 5 ; a metal layer 6 ; and a pressure-sensitive adhesive layer 7 in this order, wherein the print resin layer 4 forms a mark, the high-refractive-index glass beads 3 are disposed in the binder layer 2 , a position for disposing the high-refractive-index glass beads 3 does not coincide with a position of the print resin layer 4 , when being observed from the surface layer 1 side in a thickness direction of the retroreflective sheet for security, and the print resin layer 4 is made of a composition containing a room temperature curing resin as a main component.
申请公布号 US2006188700(A1) 申请公布日期 2006.08.24
申请号 US20040564968 申请日期 2004.11.12
申请人 KIWA CHEMICAL INDUSTRY CO., LTD. 发明人 YUKAWA SHIGEO;TANAKA MASANOBU
分类号 B32B3/00;G02B5/128;G09F3/02 主分类号 B32B3/00
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