| 摘要 |
PURPOSE:To obtain a reddish-hue thermal transfer coloring material favorable in various kinds of fastness and having a high color value and favorable thermal stability at the time of transferring, by using a coloring material of a specified formula. CONSTITUTION:A coloring material of general formula( I ), wherein X is chlorine or bromine, R<1> is lower alkyl, lower alkoxyalkyl, allyloxyalkyl, tetrahydrofurfuryl or cyanoalkyl R<2> is lower alkyl, lower alkoxyalkyl, allyloxyalkyl, tetrahydrofurfuryl, cyanoalkyl or hydrogen, and R<3> is methyl or ethyl, is used. In a method of using the coloring material for thermal transfer type recording, the coloring material is finely dispersed or dissolved in a liquid, the resultant liquid is applied to a thin base to produce a color sheet, and by using the sheet, images are transfer recorded on a printing paper by a thermal head. |
