发明授权
- 专利标题: Reversible thermosensitive coloring composition and recording material using the composition and recording method using the recording material
- 专利标题(中): 使用该记录材料的组合物和记录方法的可逆热敏着色组合物和记录材料
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申请号: US09251209申请日: 1999-02-16
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公开(公告)号: US06207613B1公开(公告)日: 2001-03-27
- 发明人: Masafumi Torii , Hiroaki Matsui , Masaru Shimada
- 申请人: Masafumi Torii , Hiroaki Matsui , Masaru Shimada
- 优先权: JP10-051477 19980217; JP10-152296 19980515
- 主分类号: B41M530
- IPC分类号: B41M530
摘要:
A reversible thermosensitive coloring composition including an electron donating coloring agent and an electron accepting color developer, wherein the composition achieves a colored state when heated at a temperature not lower than a coloring temperature and then cooled at a cooling speed (a), and the composition in the colored state achieves a non-colored state when heated at a temperature lower than the coloring temperature and not lower than an erasing temperature, or when heated at a temperature not lower than the coloring temperature and then cooled relatively slowly compared to the cooling speed (a), and wherein the electron accepting color developer includes a phenolic compound having the following formula (1): wherein n is an integer of from 1 to 3; m is an integer of from 1 to 20; r is 0 or an integer of from 1 to 3; X and Y independently represent a divalent group including a hetero atom; R1 represents a hydrocarbon group having from 1 to 20 carbon atoms; and R2 represents a hydrocarbon group having from 2 to 20 carbon atoms. A reversible thermosensitive recording material having a recording layer including the composition is also provided. In addition, a reversible thermal recording method using the reversible thermosensitive recording material is also provided.
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