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    • 1. 发明授权
    • Process for formation of base
    • 碱的形成过程
    • US4981965A
    • 1991-01-01
    • US242406
    • 1988-09-09
    • Yoshiharu YabukiJiro TsukaharaTaku Nakamura
    • Yoshiharu YabukiJiro TsukaharaTaku Nakamura
    • G03C1/61
    • G03C1/615
    • A base precursor in the form of a salt of an organic base with a carboxylic acid is disclosed. The organic base is a diacidic to tetraacidic base which is composed of two to four guanidine moieties and at least one linking group for the guanidine moities. The organic base is such a hydrophilic compound that the number of carbon atoms contained in the organic base is not more than six times the number of the guanidine moieties. The linking group is a residue of a hydrocarbon or a heterocyclic ring. The guanidine moiety corresponds to an atomic group formed by removing one or two hydrogen atoms from a compound having the following formula (I): ##STR1## where each of R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 independently is hydrogen, an alkyl group, an alkenyl group, an alkynyl group, a cycloalkyl group, an aralkyl group, an aryl group or a heterocyclic group, each of which may have one or more substituent groups, and any two of R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 may be combined together to form a five-membered or six-membered nitrogen-containing heterocyclic ring. A process for formation of an organic base from the base precursor and a light-sensitive material containing the base precursor are also disclosed.
    • 10. 发明授权
    • Ink set, ink cartridge, ink jet printer and recording method
    • 墨盒,墨盒,喷墨打印机和录像方式
    • US07083668B2
    • 2006-08-01
    • US10645795
    • 2003-08-22
    • Toshiki TaguchiYoshiharu YabukiToru HaradaNaotaka Wachi
    • Toshiki TaguchiYoshiharu YabukiToru HaradaNaotaka Wachi
    • C09D11/02
    • C09D11/328C09D11/40
    • The ink set of the present invention provides a high ejection stability, gives an image having an excellent hue, light-resistance and waterproofness and improves the image preservability under severe conditions in ink jet recording, in which the ink set comprising a plurality of inks different in hues, wherein the plurality of inks includes a yellow ink containing a coloring agent that is a dye having: a λmax of from 390 nm to 470 nm; an I(λmax+70 nm)/I(λmax) ratio of not greater than 0.4, in which I(λmax) is the absorbance at λmax and I(λmax+70 nm) is the absorbance at (λmax+70 nm); and a forced fading rate constant of not greater than 5.0×10−2 [hour−1], an ink cartridge having the ink set received therein, an ink jet printer comprising the ink cartridge mounted therein and an image recording method.
    • 本发明的油墨组提供高的喷射稳定性,给出了具有优异的色调,耐光性和防水性的图像,并且在喷墨记录的苛刻条件下提高了图像保存性,其中包含多种油墨的油墨组不同 其中所述多种油墨包括含有着色剂的黄色油墨,所述着色剂是染色剂,所述着色剂具有390nm至470nm的兰姆巴姆; I(lambdamax + 70nm)/ I(lambdamax)比不大于0.4,其中I(lambdamax)是lambdamax和I(lambdamax + 70nm)处的吸光度是(lambdamax + 70nm)处的吸光度; 和强制衰落速率常数不大于5.0×10 -2 [小时-1],其中容纳有墨水组的墨盒,喷墨打印机包括 安装在其中的墨盒和图像记录方法。