发明授权
US06197460B1 Rewritable, heat sensitive, color image recording medium and image recording method using same
失效
可重写，热敏，彩色图像记录介质和使用相同的图像记录方法
- 专利标题： Rewritable, heat sensitive, color image recording medium and image recording method using same
- 专利标题（中）： 可重写，热敏，彩色图像记录介质和使用相同的图像记录方法
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申请号： US09072695申请日： 1998-05-06
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公开(公告)号： US06197460B1公开(公告)日： 2001-03-06
- 发明人: Nobuyuki Tamaoki , Alexander Parfenov , Atsushi Masaki , Hiro Matsuda
- 申请人： Nobuyuki Tamaoki , Alexander Parfenov , Atsushi Masaki , Hiro Matsuda
- 优先权： JP9-134338 19970508
- 主分类号： G03C173
- IPC分类号： G03C173
摘要：
A rewritable, heat sensitive, color image recording medium having a pair of opposed substrate sheets at least one of which is transparent, and a heat sensitive layer interposed between the substrate sheets and containing a cholesteric liquid crystal compound having a molecular weight of not greater than 2,000 and a glass transition point of at least 35° C. A color image is formed on the recording medium by varying imagewise the temperature of the heat sensitive layer from a first temperature to a second temperature such that the cholesteric liquid crystal compound assumes a cholesteric liquid crystal phase at at least one of the first and second temperatures. The image is fixed by rapidly cooling the recording medium to a temperature lower than the glass transition point of the cholesteric liquid crystal compound.