| 摘要 |
<p>A thermosensitive recording sheet having a thermosen- , sitive color developing layer containing a basic leuco dye and an organic color developer, said organic color developer consisting at least partly of a halogen-substituted benzoic acid zinc salt represented by the following general formula
<Chemistry id="chema01" num="0001"><Image id="ia01" he="25" wi="70" file="IMGA0001.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>wherein 2 X, represents a halogen atom, X<Sub>2</Sub> represents a hydrogen or halogen atom, and R<Sub>1</Sub>, R<Sub>2</Sub> and R<Sub>3</Sub>, independently from each other, represent a hydrogen atom or an alkyl, alkoxy, cycloalkyl, nitro, cyano or hydroxyl group.</p> |
