| 摘要 |
PURPOSE:To contrive enhancement of color reproduction property, heat resistance, molar absorptivity, preservation stability and ink-preparing property, by using a specified azo coloring matter as a coloring matter for sublimation-type thermal transfer recording. CONSTITUTION:An amine of formula II, wherein D is any of formulas IV-VI, is converted into a diazo compound, which is coupled with an 8-aminoquinoline of formula III, wherein R<1> is subst. or unsubst. 1-8C alkyl, and R<2> is hydrogen or methyl, to obtain a cyan coloring matter of formula I. The coloring matter is dissolved or dispersed in a solvent such as water and an alcohol together with a binder such as a water-soluble resin and an acrylic resin to prepare an ink, which is applied to a base such as a tissue paper and a heat-resistant film to produce a thermal recording sheet. The coloring matter can be used in combination with an appropriate magenta color and an appropriate yellow color to obtain full color. |
