THERMOCHROMIC COLOR-MEMORY COMPOSITION AND THERMOCHROMIC COLOR-MEMORY MICROCAPSULE PIGMENT INCLUDING SAME
申请人:THE PILOT INK CO., LTD.
公开号:EP3192845A1
公开(公告)日:2017-07-19
[Problem] An object of the present invention is to provide: thermochromic color-memorizing composition which effectively expresses a property of being capable of interchangeably memorizing and retaining colors and is thus applicable to various fields; and thermochromic color-memorizing microcapsule pigment encapsulating the same.
[Means for Solution] Provided are thermochromic color-memorizing composition and thermochromic color-memorizing microcapsule pigment encapsulating the same, the thermochromic color-memorizing composition including: (a) an electron-donating color-developing organic compound; (b) an electron-accepting compound; and (c) an ester compound represented by the following formula (1) as a reaction medium which controls color reaction between the components (a) and (b):
(wherein, R represents an alkyl group having 4 to 22 carbon atoms, an alkenyl group having 4 to 22 carbon atoms, a cycloalkylalkyl group having 6 to 11 carbon atoms or a cycloalkyl group having 5 to 7 carbon atoms; X represents a hydrogen atom, an alkyl group, an alkoxy group or a halogen atom; Y represents a hydrogen atom, an alkyl group, an alkoxy group or a halogen atom; and n represents 0 or 1).
[问题]本发明的目的是提供:热致变色颜色记忆组合物,该组合物有效地表达了能够互换记忆和保留颜色的特性,因此适用于各种领域;以及封装该组合物的热致变色颜色记忆微胶囊颜料。
[解决方法]本发明提供了热致变色颜色记忆组合物和封装该组合物的热致变色颜色记忆微胶囊颜料,热致变色颜色记忆组合物包括:(a) 电子捐赠显色有机化合物;(b) 电子接受化合物;以及 (c) 由下式 (1) 表示的酯类化合物,作为反应介质,控制成分 (a) 和 (b) 之间的颜色反应:
(其中,R 代表具有 4 至 22 个碳原子的烷基、具有 4 至 22 个碳原子的烯基、具有 6 至 11 个碳原子的环烷基或具有 5 至 7 个碳原子的环烷基;X 代表氢原子、烷基、烷氧基或卤素原子;Y 代表氢原子、烷基、烷氧基或卤素原子;n 代表 0 或 1)。