基本信息:
- 专利标题： 安全印刷介质及其制造方法
- 申请号：CN201680069490.8 申请日：2016-09-27
- 公开(公告)号：CN108290437B 公开(公告)日：2020-02-21
- 发明人： A·基恩 , M·贝克
- 申请人： 德拉鲁国际有限公司
- 申请人地址： 英国汉普郡
- 专利权人： 德拉鲁国际有限公司
- 当前专利权人： 德拉鲁国际有限公司
- 当前专利权人地址： 英国汉普郡
- 代理机构： 北京北翔知识产权代理有限公司
- 代理人： 郑建晖; 陈璐
- 优先权： 1517150.7 2015.09.29 GB
- 国际申请： PCT/GB2016/052996 2016.09.27
- 国际公布： WO2017/055823 EN 2017.04.06
- 进入国家日期： 2018-05-28
- 主分类号： B42D25/23
- IPC分类号： B42D25/23 ; B42D25/24 ; B42D25/29 ; B42D25/351 ; B42D25/373 ; B42D25/378 ; B42D25/45
A security print medium 1 comprises a transparent or translucent polymer substrate 5 having first and second opposing surfaces 5a, 5b and a plurality of overlapping opacifying layers 6a, 6b, 6c, 7 disposed on the first and/or second surfaces of the polymer substrate, each of the opacifying layers being a layer of semi-opaque material disposed over substantially the whole area of the polymer substrate. In at least a region 9 of the substrate, a multi-tonal image is exhibited by the plurality of overlapping opacifying layers in combination with one another, at least when the security print medium is viewed in transmitted light. Each of the plurality of overlapping opacifying layers has gap(s) in which the semi-opaque material of the layer is absent, the gap(s) of each layer being defined in accordance with a different respective sub-image, the sub-images in combination defining the multi tonal image. As a result, the number of opacifying layers overlapping one another at any one location varies across the substrate, the resulting variation in optical density of the plurality of overlapping opacifying layers in combination with one another giving rise to the multiple tones of the multi-tonal image.
公开/授权文献:
- CN108290437A 安全印刷介质及其制造方法 公开/授权日：2018-07-17
IPC结构图谱:
| B | 作业；运输 |
| --B42 | 装订；图册；文件夹；特种印刷品 |
| ----B42D | 书；书籍封皮；活页；不包含在其他类目中的特殊开本或形式的印刷品；与上述物品使用有关的装置；可动条带的记录或读出设备 |
| ------B42D25/00 | 具有识别或安全功能特征的承载信息用卡片或薄板状结构；其制造 |
| --------B42D25/20 | .以具有特定用途或目的为特征 |
| ----------B42D25/23 | ..身份证 |