基本信息:
- 专利标题： Thermographic system using naphthoylated leuco phenazine dyes
- 专利标题（中）：使用萘甲酰化的无色吩嗪染料的热成像系统
- 申请号：EP84302244.3 申请日：1984-04-02
- 公开(公告)号：EP0124296A1 公开(公告)日：1984-11-07
- 发明人： Brown, Harvey A. , Miller, Alan G. , Leichter, Louis M.
- 申请人： MINNESOTA MINING AND MANUFACTURING COMPANY
- 申请人地址： 3M Center, P.O. Box 33427 St. Paul, Minnesota 55133-3427 US
- 专利权人： MINNESOTA MINING AND MANUFACTURING COMPANY
- 当前专利权人： MINNESOTA MINING AND MANUFACTURING COMPANY
- 当前专利权人地址： 3M Center, P.O. Box 33427 St. Paul, Minnesota 55133-3427 US
- 代理机构： Baillie, Iain Cameron
- 优先权： US482320 19830405
- 主分类号： B41M5/26
- IPC分类号： B41M5/26 ; C09B17/02
摘要：
This invention involves thermographic imaging systems. The thermographic system under consideration comprises a euco dye, a nitrate salt, and, optionally, an acid and stabilizing :ompound. Dyes in their reduced leuco form can provide the pasis of color image forming systems. However, the leuco form of a given dye can often revert spontaneously to the colored form of the dye during manufacture unless the structure of the dye is altered to promote stability. In this invention, which involves stabilization of the leuco dye, the stabilized leuco dye contains a phenazine nucleus with naphthoyl substituents on the 10-position and, optionally on one or both of the 3- and 7-positions through an amino group.
In their oxidized form, the leuco dyes of this invention orovide access to a range of red and magenta colors which ex- nibit greater stability when subjected to light and temperatures characteristic of the stage of overhead projectors than that exhibited by previously available leuco dyes of this color range.
摘要（中）：
In their oxidized form, the leuco dyes of this invention orovide access to a range of red and magenta colors which ex- nibit greater stability when subjected to light and temperatures characteristic of the stage of overhead projectors than that exhibited by previously available leuco dyes of this color range.
本发明涉及热成像系统。 所考虑的热成像系统包含一种euco染料，一种硝酸盐，以及任选的一种酸和稳定剂：复合物。 减少隐色形式的染料可以提供彩色图像形成系统的粘贴。 然而，给定染料的无色形式通常可以在制造过程中自发回复到染料的着色形式，除非改变染料的结构以促进稳定性。 在涉及无色染料稳定的本发明中，稳定的无色染料包含在10位具有萘酰基取代基并任选在3-和7-位中的一个或两个上通过氨基的吩嗪核。 在它们的氧化形式中，本发明的无色染料保持接近一定范围的红色和品红色，当受到高架投影仪的阶段的光和温度特性时，该颜色具有比先前可用的无色染料显示的更高的稳定性 颜色范围。
公开/授权文献:
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 |