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1. 发明申请

WO2017146799A3 ARTICLES INCLUDING INFRARED ABSORPTIVE MATERIAL AND COMPRISING RADIATION-TREATED AND NON-RADIATION-TREATED REGIONS 审中-公开
标题翻译：包括红外吸收材料和包括辐射处理和非辐射处理区域的物品
公开(公告)号：WO2017146799A3
公开(公告)日：2017-08-31
申请号：PCT/US2016/065199
申请日：2016-12-06
申请人： 3M INNOVATIVE PROPERTIES COMPANY
发明人： NIGATU, Tadesse Gizaw , PATEL, Suman K. , SCHMIDT, Craig A. , PAVELKA, Lee A. , SHARMA, Neeraj
IPC分类号： B42D25/382 , B42D25/324 , B42D25/29 , B42D25/24 , B42D25/23 , B42D25/41 , B42D25/425 , C09K9/00
摘要： Techniques are described in which articles (e.g., security documents, traffic signage and personal protective equipment) are formed to include an infrared absorptive material. In some instances, the infrared absorptive material includes a reduced tungsten oxide, such as cesium tungsten oxide, calcium tungsten oxide, potassium tungsten oxide, or the like, and exposed to radiation such that one or more regions of the security document has a modified appearance, thereby providing a visual marking or information on the article. Example articles include at least one layer including a polymer and an infrared absorptive material including a reduced tungsten oxide. The layer includes a radiation-treated region that exhibits a first appearance under visible light and at least one non-radiation-treated region that exhibits a second, different appearance under visible light. The at least one radiation-treated region may be formed by exposing the at least one radiation-treated region to infrared light to change at least one property of the reduced tungsten oxide in the radiation-treated region compared to the reduced tungsten oxide in the non-radiation-treated region. The first appearance may be whiter than the second appearance.
摘要翻译：描述了其中制作物品（例如，安全文件，交通标牌和个人防护设备）以包括红外吸收材料的技术。在一些情况下，红外吸收材料包括还原的氧化钨，例如氧化铯钨，氧化钙钨，氧化钨钾等，并暴露于辐射下，使得安全文件的一个或多个区域具有改变的外观从而提供关于物品的视觉标记或信息。实例制品包括至少一个包含聚合物和包含还原的氧化钨的红外吸收材料的层。该层包括在可见光下呈现第一外观的辐射处理区域和在可见光下呈现第二种不同外观的至少一个未辐射处理区域。至少一个经辐射处理的区域可以通过以下方式形成：将至少一个经辐射处理的区域暴露于红外光以改变经辐射处理的区域中的还原氧化钨的至少一种性质，照射处理区域。第一次出现可能比第二次出现更白。

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