THERMAL RECORDING MEDIUM
PURPOSE:To obtain a thermal recording medium having small ground color development by forming leuco dye of fluoran compound having a specific structure in the medium having a thermal color developed layer containing at least leuco dye and developer on a hydrophobic support. CONSTITUTION:A thermal re...
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Main Authors | , , |
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Format | Patent |
Language | English |
Published |
21.02.1995
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Edition | 6 |
Subjects | |
Online Access | Get full text |
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Summary: | PURPOSE:To obtain a thermal recording medium having small ground color development by forming leuco dye of fluoran compound having a specific structure in the medium having a thermal color developed layer containing at least leuco dye and developer on a hydrophobic support. CONSTITUTION:A thermal recording medium comprises at least leuco dye and developer on a hydrophobic support, wherein the dye is formed of fluoran compound represented by a formula (wherein R , R are H, methyl group, ethyl group, isopropyl group, sec-butyl group, sec-pentyl group, 2,6-xylidino group, or the R and R may be bonded to form a heterocycle together with N. R is H, halogen atom, methyl group. R , R are H, halogen group, lower alkyl group). As a result, the medium having small ground color development can be obtained. |
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Bibliography: | Application Number: JP19930193624 |