发明名称 |
Reversible thermosensitive coloring composition and reversible thermosensitive recording medium using the same |
摘要 |
A reversible thermosensitive coloring composition is provided, which contains (a) an electron-donating coloring compound; and (b) an electron-accepting compound, which is an aromatic carboxylic acid compound comprising at least one hydrocarbon group, which induces color formation in the electron-donating coloring compound. The reversible thermosensitive coloring composition reversibly assumes a color-developed state or a decolorized state, in response to at least one of (1) the temperature thereof when heated and (2) the cooling rate of the reversible thermosensitive coloring composition when cooled after the heating thereof. A reversible thermosensitive recording medium using the coloring composition is also provided.
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申请公布号 |
US5932516(A) |
申请公布日期 |
1999.08.03 |
申请号 |
US19960710718 |
申请日期 |
1996.09.20 |
申请人 |
RICOH COMPANY, LTD. |
发明人 |
TORII, MASAFUMI;FURUYA, HIROMI;SHIMADA, MASARU;TSUTSUI, KYOJI |
分类号 |
B41M5/337;B41M5/28;B41M5/30;B41M5/333;C09B11/28;(IPC1-7):B41M5/20;B41M5/24 |
主分类号 |
B41M5/337 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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