发明名称 REVERSIBLE HEAT-SENSITIVE RECORDING MEDIUM
摘要 <P>PROBLEM TO BE SOLVED: To provide a reversible heat-sensitive recording medium which is free from decrease of coloring density and occurrence of blow marks on the recording medium even by repetitive use, further free from sticking of tailings to a thermal head and furthermore excellent in light fastness. <P>SOLUTION: For the reversible heat-sensitive recording medium comprising a base material, a reversible heat-sensitive recording layer which is formed on the base material contains an electron donative coloring compound and an electron receptive compound and develops color and vanish color according to a difference of a heating temperature and/or a cooling speed after the heating and a protective layer formed on the recording layer, the protective layer contains inorganic fine particles of &ge;10 nm and &le;70 nm in an average particle size and an ultraviolet absorbing polymer. <P>COPYRIGHT: (C)2005,JPO&NCIPI
申请公布号 JP2005041087(A) 申请公布日期 2005.02.17
申请号 JP20030202550 申请日期 2003.07.28
申请人 RICOH CO LTD 发明人 OKADA NORITOMO;TSUTSUI KYOJI;FURUYA HIROMI
分类号 B42D15/10;B41M5/26;B41M5/30;B41M5/333;B41M5/337 主分类号 B42D15/10
代理机构 代理人
主权项
地址