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    • 6. 发明授权
    • Phase change ink composition employing a combination of dyes
    • 使用染料组合的相变油墨组合物
    • US5507864A
    • 1996-04-16
    • US338072
    • 1994-11-14
    • C. Wayne JaegerLoc V. BuiDonald R. Titterington
    • C. Wayne JaegerLoc V. BuiDonald R. Titterington
    • C09D11/00C09D11/02C09D11/12
    • C09D11/34
    • The present invention preferably employs a phase change ink composition that includes a combination of different dye types such as an anthraquinone dye and a xanthene dye, which is most preferably a rhodamine dye. While each dye type is insufficiently soluble with respect to favored carrier compositions to preserve color saturation in reduced ink quantity prints, the dye type combination permits increased dye loading and maintains print quality. In a preferred embodiment of the invention, a favored carrier composition is adjusted to promote the colored form of a preferred rhodamine dye (C.I. Solvent Red 49) and mixed with a preferred anthraquinone dye (C.I. Solvent Red 172) whose concentration is kept below a critical level to prevent post printed blooming. The resulting preferred phase change ink compositions provide a magenta phase change ink with enhanced light fastness and color saturation, as well as good compatibility with preferred existing subtractive primary color phase change inks.
    • 本发明优选使用包含不同染料类型的相变油墨组合物,例如蒽醌染料和呫吨染料,其最优选为罗丹明染料。 尽管每种染料类型相对于有利的载体组合物不够溶解以在减少的油墨量印刷品中保持颜色饱和度,但染料类型组合允许增加染料负载并保持打印质量。 在本发明的优选实施方案中,调节有利的载体组合物以促进优选的罗丹明染料(CI溶剂红49)的着色形式,并与其浓度保持低于临界值的优选蒽醌染料(CI溶剂红172)混合 水平防止后印花。 所得优选的相变油墨组合物提供具有增强的耐光性和色饱和度的品红相变油墨,以及与优选的现有减色原色相变油墨的良好相容性。
    • 9. 发明授权
    • Methods for making colorant compounds
    • 制备着色剂化合物的方法
    • US07053227B2
    • 2006-05-30
    • US10260379
    • 2002-09-27
    • C. Wayne JaegerJeffery H. Banning
    • C. Wayne JaegerJeffery H. Banning
    • C09B1/16
    • C09B1/5145
    • A process for preparing a colorant of the formula which comprises preparing a first reaction mixture by admixing leucoquinizarin and, optionally, quinizarin, an aminobenzene substituted with an alcohol group of the formula —R1—OH, boric acid, and an optional solvent, and heating the first reaction mixture to prepare an alcohol-substituted colorant of the formula followed by converting the colorant thus prepared to either an ester-substituted colorant by reaction with an esterification compound which is either an anhydride of the formula or an acid of the formula R2COOH in the presence of an optional esterification catalyst or a urethane-substituted colorant by reaction with an isocyanate compound of the formula R4—N═C═O and brominating the colorant thus prepared, wherein either conversion to ester or urethane can be performed before bromination or bromination can be performed before conversion to ester or urethane.
    • 一种制备下式的着色剂的方法,其包括通过混合无色茜素和任选的茜素,用式-R 1 -OH的醇基取代的氨基苯来制备第一反应混合物,硼酸 和任选的溶剂,并加热第一反应混合物以制备下式的醇取代的着色剂,然后通过与酯化化合物反应将由此制备的着色剂转化为酯取代的着色剂,所述酯化化合物是式 或式R 2 COOH的酸,在任选的酯化催化剂或氨基甲酸酯取代的着色剂的存在下,通过与式的线性化学式描述的“ “公式”end =“lead”?> R NCO <?in-line-formula description =“In-line Formulas”end =“tail”?>并溴化所制备的着色剂 ,其中可以进行转化为酯或氨基甲酸酯 在转化成酯或氨基甲酸酯之前可以进行溴化或溴化。