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基本信息:
- 专利标题: IR dyes and laser markable articles comprising such IR dyes
- 申请号:EP14166498.7 申请日:2014-04-30
- 公开(公告)号:EP2940082B1 公开(公告)日:2018-10-24
- 发明人: Steenackers, Marin
- 申请人: AGFA-GEVAERT
- 申请人地址: Septestraat 27 2640 Mortsel BE
- 专利权人: AGFA-GEVAERT
- 当前专利权人: AGFA-GEVAERT
- 当前专利权人地址: Septestraat 27 2640 Mortsel BE
- 代理机构: Viaene, Kris
- 主分类号: B41M5/34
- IPC分类号: B41M5/34 ; B41M3/14 ; C09B23/01 ; B41M5/30 ; C09B23/08 ; B41M5/26 ; B42D25/00
摘要:
Infrared dyes having an infrared absorption maximum above 1130 nm are disclosed which have minor colouration in the visual spectrum. The infrared dyes are especially useful for producing multicolour laser marked security documents having reduced background coloration and enhanced colour gamut.
公开/授权文献:
- EP2940082A1 IR dyes and laser markable articles comprising such IR dyes 公开/授权日:2015-11-04
IPC结构图谱:
B | 作业;运输 |
--B41 | 印刷;排版机;打字机;模印机 |
----B41M | 印刷、复制、标记或拷贝工艺;彩色印刷 |
------B41M5/00 | 复制或标记方法;供其使用的单张材料 |
--------B41M5/26 | .热压凸印法 |
----------B41M5/34 | ..多色热压凸印刷 |