发明授权
- 专利标题: Method for creating a scratch-off document
- 专利标题(中): 创建划痕文档的方法
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申请号: US13866064申请日: 2013-04-19
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公开(公告)号: US08883390B1公开(公告)日: 2014-11-11
- 发明人: Dinesh Tyagi , Mark Cameron Zaretsky , Robert David Bobo
- 申请人: Dinesh Tyagi , Mark Cameron Zaretsky , Robert David Bobo
- 申请人地址: US NY Rochester
- 专利权人: Eastman Kodak Company
- 当前专利权人: Eastman Kodak Company
- 当前专利权人地址: US NY Rochester
- 代理商 Peyton C. Watkins
- 主分类号: G03G13/22
- IPC分类号: G03G13/22 ; G03G13/08
摘要:
A method for creating a scratch-off document having hidden information, the method includes providing a substrate; depositing a first layer of first toner particles on the substrate, wherein the first layer includes at least two thicknesses in which one region is thicker than the other region; depositing a second layer of toner particles on the first layer, wherein the first toner particles have a different thermal conductivity than the second toner particles; and applying heat to the first and second layers simultaneously so that the first layer adheres to the substrate in regions of the lesser thickness of the first toner particles and does not adhere in the regions of greater thickness of the first toner particles; wherein the first and second layers in the regions of greater thickness of the first toner layer can be removed thereby revealing hidden information.
公开/授权文献
- US20140315128A1 METHOD FOR CREATING A SCRATCH-OFF DOCUMENT 公开/授权日:2014-10-23
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