申请人:Nichiyu Giken Kogyo Co. Ltd.
公开号:EP2554961A1
公开(公告)日:2013-02-06
A temperature management indictor having simple structure is provided, which, not containing a hazardous metal, especially mercury among others, is safe and excellently durable, especially durable against light and repetition of heating and cooling cycle, is capable of indicating specific temperature ranges by means of reversible color changes, and also is able, as need be, to indicate an arrival at a specific temperature by means of an irreversible color change. A temperature management indicator 10 comprises; a reversible temperature indicating member 14 including reversible temperature indicating pigment particles devoid of mercury, which reversibly undergoes color changes at a predetermined temperature, wherein in the reversible temperature indicating member 14, the reversible temperature indicating pigment particles contain an iron-containing complex compound and are dispensed to be dispersed in a resin thereof.
本发明提供了一种结构简单的温度管理指示器,该指示器不含有害金属,特别是汞,安全耐用,特别是耐光和耐重复加热和冷却循环,能够通过可逆的颜色变化指示特定的温度范围,也能够根据需要通过不可逆的颜色变化指示到达特定温度。温度管理指示器 10 包括:可逆温度指示部件 14,其中包括不含汞的可逆温度指示颜料颗粒,该颜料颗粒在预定温度下可逆地发生颜色变化,其中在可逆温度指示部件 14 中,可逆温度指示颜料颗粒包含含铁的复合化合物,并被分配分散在其树脂中。