Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
REVERSIBLE MULTI-COLOR RECORDING MEDIUM AND RECORDING METHOD USING THIS MEDIUM
Document Type and Number:
Japanese Patent JP2005066936
Kind Code:
A
Abstract:

To provide a reversible multi-color thermosensitive recording medium which shows a clear-cut contrast without color fog and also color fading even in case recording and erasure of image data are repeatedly performed, and a recording method using this medium.

In this reversible multi-color recording medium, a first to an "n"th recording layer containing reversible thermosensitive color developing compositions of mutually different developed hues, are sequentially formed, in the planar direction of a support substrate, from the substrate side, in the way that the layers are separately independent of each other. In addition, the first to the "n"th recording layers contain a photothermal conversion composition which generates heat upon absorption of near infrared rays of respectively different wavelength regions. Besides, the relationship: 1,500 nm>λmax1>λmax2>...>λmaxn>750 nm is established when the absorption peak wavelengths in the near infrared regions of the first to the "n"th recording layer are given as λmax1-λ maxn.


Inventors:
TSUBOI HISANORI
KURIHARA KENICHI
KISHII NORIYUKI
Application Number:
JP2003297407A
Publication Date:
March 17, 2005
Filing Date:
August 21, 2003
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
SONY CORP
International Classes:
B41M5/34; B41M5/26; B41M5/28; B41M5/30; B41M5/337; B41M5/40; B41M5/42; B41M5/46; (IPC1-7): B41M5/26
Attorney, Agent or Firm:
Chieko Tateno