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    Aqueous ink, ink set, and image-forming method
    7.
    发明授权
    Aqueous ink, ink set, and image-forming method 有权
    水性油墨，油墨组合和成像方法

    公开(公告)号：US07402200B2

    公开(公告)日：2008-07-22

    申请号：US11313670

    申请日：2005-12-22

    申请人： Takashi Imai ,  Mikio Sanada ,  Yasuhiro Nito ,  Tetsu Iwata ,  Shinichi Hakamada ,  Sadayuki Sugama ,  Hideki Takayama

    发明人： Takashi Imai ,  Mikio Sanada ,  Yasuhiro Nito ,  Tetsu Iwata ,  Shinichi Hakamada ,  Sadayuki Sugama ,  Hideki Takayama

    IPC分类号： C09D11/02

    CPC分类号： C09D11/40 ,  C09D11/54

    摘要： The present invention aims to provide an ink which has a sufficiently large area factor even in a small ink droplet quantity and can obtain images having a high image density, and further has a superior storage stability. According to the present invention, a cyan ink is provided which is used in an ink set having four kinds of aqueous inks consisting of a cyan ink, a magenta ink, a yellow ink and a black ink in which each ink comprises at least water, a water-insoluble coloring material, and a plurality of water-soluble organic solvents having a good medium or good mediums for the water-insoluble coloring material and a poor medium or poor mediums for the water-insoluble coloring material, wherein, the ratio B1/A1 is from 0.5 or more to 3.0 or less, where A1 denotes the total content (mass %) of the good medium based on the total mass of the cyan ink and B1 denotes the total content (mass %) of the poor medium based on the total mass of the cyan ink, and a water-soluble organic solvent which shows the maximum Ka value among the respective Ka values of the plurality of water-soluble organic solvents as determined by the Bristow method is the poor medium.

    摘要翻译： 本发明的目的在于提供即使在小的墨滴量中也具有足够大的面积因数并且可以获得具有高图像密度的图像的墨水，并且还具有优良的储存稳定性。 根据本发明，提供一种青色墨水，其用于具有四种由青色墨水，品红色墨水，黄色墨水和黑色墨水组成的水性墨水的墨水组合，其中每种墨水至少包含水， 水不溶性着色材料和多种水溶性着色材料介质或介质良好的水溶性有机溶剂和水不溶性着色材料的不良介质或不良介质，其中B比 1 1 <1 为0.5以上至3.0以下，其中，A 1表示良好介质的总含量（质量％） 基于青色墨水的总质量，B＆lt; 1＆lt; 1＆gt;表示基于青色墨水的总质量的不良介质的总含量（质量％）和表示 通过Bristow法测定的多种水溶性有机溶剂的各Ka值中的最大Ka值是不良介质。

    Recording method, ink cartridge, and image-forming method
    8.
    发明授权
    Recording method, ink cartridge, and image-forming method 有权
    记录方法，墨盒和成像方法

    公开(公告)号：US07635182B2

    公开(公告)日：2009-12-22

    申请号：US11314010

    申请日：2005-12-22

    申请人： Shinichi Hakamada ,  Mikio Sanada ,  Takashi Imai ,  Yasuhiro Nito ,  Sadayuki Sugama

    发明人： Shinichi Hakamada ,  Mikio Sanada ,  Takashi Imai ,  Yasuhiro Nito ,  Sadayuki Sugama

    IPC分类号： G01D11/00

    CPC分类号： B41J2/2107 ,  C09D11/30 ,  C09D11/40 ,  C09D11/54

    摘要： A recording method is provided which enables formation of an image with high image density and low graininess. The recording is conducted by using a recording method using a first aqueous ink for higher-density recording and a second aqueous ink for lower-density recording, characterized in that the first aqueous ink includes at least water, a water-insoluble coloring material, and plurality of water-soluble organic solvents, the plurality of water-soluble organic solvents including a good medium or good mediums for the water-insoluble coloring material and a poor medium or poor mediums for the water-insoluble coloring material, the ratio B/A in the second aqueous ink being less than the ratio B/A in the first aqueous ink, where A denotes the total content (mass %) of good medium based on the total mass of the aqueous ink and B denotes the total content (mass %) of poor medium based on the total mass of the aqueous ink; and the second aqueous ink has the same hue as the first aqueous ink.

    摘要翻译： 提供了能够形成具有高图像密度和低颗粒度的图像的记录方法。 记录是通过使用使用第一水性油墨进行更高密度记录的记录方法和用于低密度记录的第二含水油墨进行的，其特征在于，所述第一含水油墨至少包括水，水不溶性着色材料和 多种水溶性有机溶剂，多种水溶性有机溶剂包括用于水不溶性着色材料的良好介质或良好介质和用于水不溶性着色材料的差介质或差介质，B / A比 在第二水性油墨中，比第一水性油墨中的B / A比低，其中A表示基于水性油墨的总质量的良好介质的总含量（质量％），B表示总含量（质量％ ）基于水性油墨的总质量的不良介质; 并且第二水性墨水具有与第一水性墨水相同的色调。

    Aqueous ink, aqueous ink set, ink cartridge, ink-jet recording apparatus, ink-jet recording method, and image-forming method
    9.
    发明申请
    Aqueous ink, aqueous ink set, ink cartridge, ink-jet recording apparatus, ink-jet recording method, and image-forming method 审中-公开
    水性油墨，水性油墨组，墨盒，喷墨记录装置，喷墨记录方法和图像形成方法

    公开(公告)号：US20060098068A1

    公开(公告)日：2006-05-11

    申请号：US11313689

    申请日：2005-12-22

    申请人： Shinichi Hakamada ,  Takashi Imai ,  Mikio Sanada ,  Yasuhiro Nito ,  Tetsu Iwata ,  Sadayuki Sugama

    发明人： Shinichi Hakamada ,  Takashi Imai ,  Mikio Sanada ,  Yasuhiro Nito ,  Tetsu Iwata ,  Sadayuki Sugama

    IPC分类号： G01D11/00 ,  C09D11/02 ,  C09D11/00

    CPC分类号： C09D11/40 ,  C09D11/54

    摘要： An aqueous ink comprises water, a water-insoluble coloring material, and plurality of water-soluble organic solvents and the plurality of water-soluble organic solvents including a good medium or good mediums for the water-insoluble coloring material and a poor medium or poor mediums for the water-insoluble coloring material. The ratio of the content of the poor medium and the content of the good medium is in a specific range. A water-soluble organic solvent showing the maximum Ka value out of respective Ka values of the plurality of water-soluble organic solvents is the poor medium. When the aqueous ink is in contact with a specific reaction liquid, the dissolution state or dispersed state of the water-insoluble coloring material in the ink is made unstable. As a result, an image which has a sufficiently large area factor even with a small amount of ink droplets and is excellent in image density, bleeding resistance, and fixability can be obtained. In addition, the aqueous ink is excellent in storage stability.

    摘要翻译： 水性油墨包括水，水不溶性着色材料和多种水溶性有机溶剂，以及多种水溶性有机溶剂，包括用于水不溶性着色材料的良好介质或良好介质和不良介质或差 介质为水不溶性着色材料。 不良介质的含量与良好介质的含量的比例在特定范围内。 在多种水溶性有机溶剂的各Ka值中显示出最大Ka值的水溶性有机溶剂是不良介质。 当水性油墨与特定的反应液体接触时，水不溶性着色材料在油墨中的溶解状态或分散状态变得不稳定。 结果，可以获得即使具有少量墨滴也具有足够大的面积因子并且图像密度，耐渗色性和定影性优异的图像。 此外，水性油墨的保存稳定性优异。

    Aqueous ink, aqueous ink set, ink cartridge, ink-jet recording apparatus, ink-jet recording method, and image-forming method
    10.
    发明授权
    Aqueous ink, aqueous ink set, ink cartridge, ink-jet recording apparatus, ink-jet recording method, and image-forming method 有权
    水性油墨，水性油墨组，墨盒，喷墨记录装置，喷墨记录方法和图像形成方法

    公开(公告)号：US08016406B2

    公开(公告)日：2011-09-13

    申请号：US12576823

    申请日：2009-10-09

    申请人： Shinichi Hakamada ,  Takashi Imai ,  Mikio Sanada ,  Yasuhiro Nito ,  Tetsu Iwata ,  Sadayuki Sugama

    发明人： Shinichi Hakamada ,  Takashi Imai ,  Mikio Sanada ,  Yasuhiro Nito ,  Tetsu Iwata ,  Sadayuki Sugama

    IPC分类号： G01D11/00

    CPC分类号： C09D11/40 ,  C09D11/54

    摘要： An aqueous ink comprises water, a water-insoluble coloring material, and plurality of water-soluble organic solvents and the plurality of water-soluble organic solvents including a good medium or good mediums for the water-insoluble coloring material and a poor medium or poor mediums for the water-insoluble coloring material. The ratio of the content of the poor medium and the content of the good medium is in a specific range. A water-soluble organic solvent showing the maximum Ka value out of respective Ka values of the plurality of water-soluble organic solvents is the poor medium. When the aqueous ink is in contact with a specific reaction liquid, the dissolution state or dispersed state of the water-insoluble coloring material in the ink is made unstable. As a result, an image which has a sufficiently large area factor even with a small amount of ink droplets and is excellent in image density, bleeding resistance, and fixability can be obtained. In addition, the aqueous ink is excellent in storage stability.

    摘要翻译： 水性油墨包括水，水不溶性着色材料和多种水溶性有机溶剂，以及多种水溶性有机溶剂，包括用于水不溶性着色材料的良好介质或良好介质和不良介质或差 介质为水不溶性着色材料。 不良介质的含量与良好介质的含量的比例在特定范围内。 在多种水溶性有机溶剂的各Ka值中显示出最大Ka值的水溶性有机溶剂是不良介质。 当水性油墨与特定的反应液体接触时，水不溶性着色材料在油墨中的溶解状态或分散状态变得不稳定。 结果，可以获得即使具有少量墨滴也具有足够大的面积因子并且图像密度，耐渗色性和定影性优异的图像。 此外，水性油墨的保存稳定性优异。