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    • 56. 发明申请
    • THERMOCHROMIC INK AND DOCUMENT PRINTED THEREWITH
    • 热敏墨水和文件打印
    • US20130255536A1
    • 2013-10-03
    • US13906545
    • 2013-05-31
    • The Standard Register Company
    • Rajendra MehtaRichard L. Shields
    • C09D11/00
    • C09D11/50B41M5/282B42D25/29B42D2033/04B42D2033/20B42D2035/24B42D2035/34C09D5/26D21H19/12D21H21/48D21H21/54
    • A document which may be a security document has a thermochromic coating which may be a thermochromic ink on the substrate of the document. The ink may include several thermochromic materials which transition from various different colors to substantially clear in appearance as the ink is warmed to various temperatures. The combination of the colors of the thermochromic materials can give the document a different color at a number of different temperatures, until the coating is warmed to the highest color change point. When at or above the highest color change temperature, the coating becomes substantially transparent and the printed area assumes the color of the underlying substrate. The coating may also include non-reactive materials of yet another color that mixes with the colors of the thermochromic materials. The document may additionally include printed indicia on the substrate that are masked by the thermochromic materials at certain temperatures, and not masked by the thermochromic materials at other temperatures.
    • 可以是安全文件的文件具有热变色涂层,其可以是文档的基底上的热变色油墨。 油墨可以包括几种热变色材料,当油墨被加热到各种温度时,它们从各种不同的颜色转变为基本上清晰的外观。 热变色材料的颜色的组合可以在许多不同的温度下给予文件不同的颜色,直到涂层被加热到最高的颜色变化点。 当处于或高于最高变色温度时,涂层变得基本上是透明的,并且印刷区域呈现下面的基底的颜色。 涂层还可以包括与热变色材料的颜色混合的另一颜色的非反应性材料。 文件还可以包括在基板上的在特定温度下由热变色材料掩蔽的印刷标记,并且在其它温度下不被热变色材料掩蔽。