- 专利标题: Reversible thermosensitive coloring composition, recording medium, recording method, and image display apparatus using the recording medium
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申请号: US338112申请日: 1994-11-09
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公开(公告)号: US5432534A公开(公告)日: 1995-07-11
- 发明人: Shoji Maruyama , Hiroshi Goto , Eiichi Kawamura , Masaru Shimada , Keishi Kubo , Kyoji Tsutsui , Hideaki Ema , Takehito Yamaguchi , Hiroki Kuboyama , Ichiro Sawamura , Keishi Taniguchi
- 申请人: Shoji Maruyama , Hiroshi Goto , Eiichi Kawamura , Masaru Shimada , Keishi Kubo , Kyoji Tsutsui , Hideaki Ema , Takehito Yamaguchi , Hiroki Kuboyama , Ichiro Sawamura , Keishi Taniguchi
- 申请人地址: JPX Tokyo
- 专利权人: Ricoh Company, Ltd.
- 当前专利权人: Ricoh Company, Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX2-414436 19901226; JPX2-414438 19901226; JPX3-042813 19910214; JPX3-138476 19910514; JPX3-155440 19910531; JPX3-185242 19910629; JPX3-195997 19910710; JPX3-198901 19910712; JPX3-229572 19910815; JPX3-258552 19910910; JPX3-258553 19910910; JPX3-355078 19911220
- 主分类号: B41M5/30
- IPC分类号: B41M5/30 ; B41M5/333 ; B41M5/26 ; B41J2/32 ; B41J2/435 ; B41J2/475
摘要:
A reversible thermosensitive coloring composition is composed of (i) an electron-donor coloring compound and (ii) an electron-acceptor compound selected from the group consisting of an organic phosphoric acid compound, an aliphatic carboxylic acid, and a phenolic compound, each having a straight chain or branched chain alkyl group or alkyenyl group having 12 or more carbon atoms, the electron-donor coloring compound and the electron-acceptor compound being capable of reacting to induce color formation in the reversible thermosensitive coloring composition at the eutectic temperature thereof. The electron-donor coloring compound and the electron-acceptor compound, when fused and colored in a mixed state, with application of heat thereto, followed by rapidly cooling the fused mixture, exhibit an exothermic peak in a temperature elevation process in a differential scanning calorific analysis or in a differential thermal analysis. A recording medium and display medium using the above reversible thermosensitive coloring composition, a recording method of using the recording medium, a display method of using the display medium, a display method of using the display medium, and a display apparatus using the display medium are disclosed.