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    • 6. 发明授权
    • Set of color ink compositions for ink-jet printing and method of forming
color images using the color ink set
    • 用于喷墨打印的一组彩色油墨组合物和使用彩色油墨组形成彩色图像的方法
    • US6120589A
    • 2000-09-19
    • US253035
    • 1999-02-19
    • Akiko BannaiAkio KojimaKiyofumi NagaiMasato IgarashiMasayuki KoyanoHiroyuki MochizukiTakanori TsuyukiIkuko Tanaka
    • Akiko BannaiAkio KojimaKiyofumi NagaiMasato IgarashiMasayuki KoyanoHiroyuki MochizukiTakanori TsuyukiIkuko Tanaka
    • C09D11/00C09D11/02
    • C09D11/40
    • A set of color ink compositions for ink-jet printing includes yellow, magenta and cyan ink composition, each of which having water, a water-soluble coloring agent, a wetting agent, a surfactant and an antiseptic and mildewproofing agent, and the yellow ink composition has the lightness index L* of 95.+-.5 and the chromaticness indices a* and b* of respectively -6.+-.5 and 23 .+-.12, the magenta ink composition has the lightness index L* of 75.+-.5 and the chromaticness indices a* and b* of respectively 55.+-.25 and -28.+-.10, and the cyan ink composition has the lightness index L* of 87.+-.5 and the chromaticness indices a* and b* of respectively -35.+-.10 and -19.+-.8. Further, color ink images are formed on a recording material with a Stockigt sizing degree of 10 sec or more using the above set of color ink compositions and a printing head with a plurality of ink-ejecting orifices by performing dot printing on the recording material by ejecting the ink compositions from the ink-ejecting orifices with the printing head scanned over the recording material a plurality of times.
    • 用于喷墨打印的一组彩色油墨组合物包括黄色,品红色和青色油墨组合物,每种都具有水,水溶性着色剂,润湿剂,表面活性剂和防腐防霉剂,以及黄色油墨 组合物的亮度指数L *为95 +/- 5,色度指数a *和b *分别为-6 +/- 5和23 +/- 12,品红色油墨组合物的亮度指数L *为75+ / -5,色度指数a *和b *分别为55 +/- 25和-28 +/- 10,青色油墨组合物的亮度指数L *为87 +/- 5,色度指数a * 和b *分别为-35 +/- 10和-19 +/- 8。 此外,使用上述彩色油墨组合物和具有多个喷墨孔的打印头,在具有St + E,uml o + EE ckigt施胶度为10秒以上的记录材料上形成彩色油墨图像, 通过在记录材料上扫描打印头多次来从喷墨孔喷射墨水组合物,在记录材料上进行点印刷。