| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a thermally sensitive recording body which is excellent in recording sensitivity and shelf life of recorded images regarding the thermally sensitive recording body utilizing a coloring reaction between a colorless or light color leuco dye and a color developer. <P>SOLUTION: The thermally sensitive recording body includes a thermally sensitive recording layer containing the leuco dye, the color developer and a sensitizer on a supporting body. In the thermally sensitive recording body, at least one kind which is selected from 4,4'-(3-tosylureid)diphenylmethane, 4,4'-(3-tosylureid)diphenylether, N-(3-tosyl)-N'-phenylurea and butyl 4-(p-tosylureid)benzoate is contained as the color developer. Also, 2-naphthyl benzyl ether is contained by 50 to 200 mass% based on the total mass of the all color developer contained in the thermally sensitive recording layer as the sensitizer in the thermally sensitive recording body. <P>COPYRIGHT: (C)2013,JPO&INPIT |
