| 发明名称 |
Article identification material and method and apparatus for using it |
| 摘要 |
An ink that fluoresces in the near infrared is used to mark documents such as bank checks for automatic identification. Markings with this ink are reliably detectable, even in the presence of other markings commonly found on such documents. The preferred fluorescent material of our invention is a phenoxazine dye 3,7-BIS(diethylamino) phenoxazonium nitrate.
|
| 申请公布号 |
US4540595(A) |
申请公布日期 |
1985.09.10 |
| 申请号 |
US19820433311 |
申请日期 |
1982.10.07 |
| 申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
ACITELLI, MARIO A.;TYNAN, RICHARD F.;WAYSON, ALAN R. |
| 分类号 |
B41M3/06;B41M3/14;B44F1/12;C09D11/00;C09D11/02;(IPC1-7):B41M3/14;B05C11/00 |
主分类号 |
B41M3/06 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
