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    • 31. 发明授权
    • Aqueous pigment ink composition and method of manufacturing the same
    • 水性颜料墨水组合物及其制造方法
    • US07553883B2
    • 2009-06-30
    • US11130431
    • 2005-05-16
    • Masahiro Yatake
    • Masahiro Yatake
    • C09D11/00
    • C09D11/322
    • The invention provides an aqueous pigment ink composition that ensures excellent recording characteristics on any type of recording mediums. An aqueous pigment ink composition of the invention includes a pigment, a water-dispersible polymer, water, and a water-soluble organic solvent, where the pigment is dispersed as primary particles having an average primary particle diameter of not greater than 50 nm and as secondary particles having a ratio of an average secondary particle diameter to the average primary particle diameter in a range of 1 to 10, and the water-dispersible polymer has a minimum glass transition temperature of lower than 100° C. Using this polymer ensures good dispersion stability and favorable glossiness on a glossy medium.
    • 本发明提供一种在任何类型的记录介质上确保优异的记录特性的水性颜料油墨组合物。 本发明的水性颜料墨水组合物包含颜料,水分散性聚合物,水和水溶性有机溶剂,其中颜料分散为平均一次粒径不大于50nm的一次粒子,并且以 二次粒子的平均二次粒径与平均一次粒径的比例在1〜10的范围内,水分散性聚合物的玻璃化转变温度低于100℃。使用该聚合物可确保良好的分散性 在光泽介质上的稳定性和良好的光泽度。
    • 35. 发明授权
    • Water-based ink
    • 水性油墨
    • US07052536B2
    • 2006-05-30
    • US10677627
    • 2003-10-02
    • Masahiro Yatake
    • Masahiro Yatake
    • C09D11/00
    • C09D11/322C09D11/38
    • There is provided a water-based ink that gives good coloration and little blurring on regular paper, gives adequate coloration on specialist paper, and has good fixability, and further gives excellent discharge stability with ink jet recording, and moreover exhibits the effect of a chelating agent even in a small amount, and is not harmful due to evaporating, subliming or the like. The water-based ink of the present invention comprises a colorant, water, a water-soluble organic solvent, a surfactant, and a chelating agent, wherein the chelating agent is nitrilotriacetic acid (NTA) or a salt thereof, methylglycine diacetic acid (MGDA) or a salt thereof, L-glutamine diacetic acid (GLDA) or a salt thereof, L-aspartic acid diacetic acid (ASDA) or a salt thereof, diethylenetriamine pentaacetic acid (DTPA) or a salt thereof, gluconic acid (GA) or a salt thereof, citric acid (CA) or a salt thereof, nitrilotripropionic acid (NTP) or a salt thereof, nitrilotrisphosphonic acid (NTPO) or a salt thereof, dihydroxyethylglycine (DHEG) or a salt thereof, hydroxyethyliminodiacetic acid (HIDA) or a salt thereof, 1,3-diamino-2-hydroxypropane tetraacetic acid (DPTA-OH) or a salt thereof, hydroxyethylidene diphosphonic acid (HEDP) or a salt thereof, nitrilotrimethylene phosphonic acid (NTMP) or a salt thereof, or phosphonobutane tricarboxylic acid (PBTC) or a salt thereof.
    • 提供了一种水性油墨,其在常规纸上具有良好的着色和模糊,在专用纸上赋予足够的着色性,并且具有良好的定影性,并且通过喷墨记录进一步提供优异的喷射稳定性,此外还显示出螯合作用 即使少量,并且由于蒸发,升华等而不是有害的。 本发明的水性油墨包括着色剂,水,水溶性有机溶剂,表面活性剂和螯合剂,其中螯合剂是次氮基三乙酸(NTA)或其盐,甲基甘氨酸二乙酸(MGDA )或其盐,L-谷氨酰胺二乙酸(GLDA)或其盐,L-天冬氨酸二乙酸(ASDA)或其盐,二亚乙基三胺五乙酸(DTPA)或其盐,葡萄糖酸(GA)或 其盐,柠檬酸(CA)或其盐,次氮基丙酸(NTP)或其盐,次氮基三膦酸(NTPO)或其盐,二羟基乙基甘氨酸(DHEG)或其盐,羟乙基亚氨基二乙酸(HIDA)或 其盐,1,3-二氨基-2-羟基丙烷四乙酸(DPTA-OH)或其盐,羟乙叉基二膦酸(HEDP)或其盐,次氮基三亚甲基膦酸(NTMP)或其盐或膦酸丁烷三羧酸 (PBTC)或其盐。
    • 36. 发明申请
    • Aqueous ink composition and method of manufacturing the same
    • 水性油墨组合物及其制造方法
    • US20050004261A1
    • 2005-01-06
    • US10819096
    • 2004-04-06
    • Masahiro Yatake
    • Masahiro Yatake
    • B41J2/01B41M5/00C09D11/00C09D11/322C09D11/38C03C17/00C09D5/00
    • C09D11/322C09D11/16
    • An aqueous ink composition comprising: a pigment, having a particle diameter as determined by the light scattering method of no less than 20 nm and no more than 200 nm; and a water dispersible polymer, having a styrene-equivalent number average molecular weight of as determined by gel permeation chromatography no less than 5000 and no more than 200000, having a surface tension of no less than 20 mN/m and no more than 40 mN/m, and wherein the abovementioned pigment is a polymer-coated pigment that is coated with the abovementioned water dispersible polymer, is provided. The water-dispersible polymer may be a copolymer of monomers, mainly comprising acrylic acid and/or methacrylic acid and an acrylate and/or methacrylate. With this ink composition, the printing quality can be improved.
    • 一种水性墨水组合物,其特征在于,含有:通过光散射法测定的粒径不小于20nm且不大于200nm的颜料; 和水分散性聚合物,其具有通过凝胶渗透色谱法测定的苯乙烯当量数均分子量不小于5000且不大于200000,表面张力不小于20mN / m且不大于40mN / m,并且其中上述颜料是涂覆有上述水分散性聚合物的聚合物涂覆的颜料。 水分散性聚合物可以是主要包含丙烯酸和/或甲基丙烯酸和丙烯酸酯和/或甲基丙烯酸酯的单体的共聚物。 利用这种油墨组合物,可以提高打印质量。
    • 37. 发明授权
    • Ink jet recording method and apparatus for forming an image on either plain paper or a specialty recording medium
    • 用于在普通纸或特种记录介质上形成图像的喷墨记录方法和装置
    • US06234601B1
    • 2001-05-22
    • US09061386
    • 1998-04-16
    • Hiroko HayashiMasahiro YatakeYoshiyuki OzawaMasayuki Momose
    • Hiroko HayashiMasahiro YatakeYoshiyuki OzawaMasayuki Momose
    • B41J2938
    • C09D11/30B41J2/01B41J2/2107B41J3/407B41M5/0017B41M5/0023B41M7/0018C09D11/40
    • An ink jet recording method which can produce a good image on both plain papers and specialty recording media for ink jet recording, and an ink jet recording apparatus for the ink jet recording method are disclosed. The ink jet recording method comprises: providing a black ink composition comprising a pigment as a colorant and a black ink composition comprising a dye as a colorant; and, when the recording medium comprises a gloss layer and/or an ink-receptive layer, printing only the black ink composition comprising a dye as the colorant on the recording medium, and, when the recording medium is plain paper, both the black ink composition comprising a pigment as the colorant and the black ink composition comprising a dye as the colorant are printed. According to this recording method, in the case of printing on plain paper, the density of black can be enhanced, while in the case of printing on a specialty paper for ink jet recording, an image having high chroma and good reproduction range can be produced.
    • 公开了能够在普通纸和用于喷墨记录的专用记录介质上产生良好图像的喷墨记录方法,以及用于喷墨记录方法的喷墨记录装置。 喷墨记录方法包括:提供包含着色剂颜料和包含染料作为着色剂的黑色油墨组合物的黑色油墨组合物; 并且当记录介质包含光泽层和/或油墨接收层时,仅将包含染料的黑色油墨组合物作为着色剂印刷在记录介质上,并且当记录介质为普通纸时,黑色油墨 印刷包含颜料作为着色剂的组合物和包含染料作为着色剂的黑色油墨组合物。 根据这种记录方法,在普通纸上打印的情况下,可以提高黑色的浓度,而在用于喷墨记录的专用纸上打印的情况下,可以产生具有高色度和良好再现范围的图像 。