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    • 5. 发明申请
    • Cyan ink, ink set, set of ink and reaction liquid, and image forming method
    • 青色墨水,墨水组,墨水和反应液体,以及成像方法
    • US20060103703A1
    • 2006-05-18
    • US11313959
    • 2005-12-22
    • Yasuhiro NitoMikio SanadaSadayuki Sugama
    • Yasuhiro NitoMikio SanadaSadayuki Sugama
    • G01D11/00C09D11/00
    • C09D11/40C09D11/54
    • Provided is a cyan ink applicable to an ink set having four kinds of aqueous inks composed of the cyan ink, a magenta ink, a yellow ink, and a black ink each containing water; a water-insoluble coloring material; and 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 content of the water-insoluble coloring material in the cyan ink is in a specific range, and the ratio B1/A1 between the good medium and the poor medium is also 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. The ratio A/B between the good medium and the poor medium in an arbitrary aqueous ink in the ink set except the cyan ink and B1/A1 satisfy a specific relationship. The cyan ink provides an image having a sufficiently large area factor even with a small amount of ink droplets, and having a high image density, and is excellent in storage stability and bronzing resistance.
    • 提供了适用于具有四种由青色油墨,品红色油墨,黄色油墨和各自含有水的黑色油墨组成的四种水性油墨的油墨组的青色油墨。 水不溶性着色材料; 以及多种水溶性有机溶剂,其包括用于水不溶性着色材料的良好介质或良好介质,以及用于水不溶性着色材料的差介质或不良介质。 青色墨水中的水不溶性着色材料的含量在特定范围内,良好介质和不良介质之间的比例B 1 / A 1 / 也在一个特定的范围。 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。 除了青色墨水和B 1 / A 1 N以外的墨水组中的任意水性墨水中的良好介质和不良介质之间的比A / B满足特定关系 。 青色油墨即使使用少量的墨滴也提供了具有足够大的面积因子的图像,并且具有高图像密度,并且具有优异的储存稳定性和耐烫金性。
    • 8. 发明授权
    • Recording medium
    • 录音媒体
    • US08449957B2
    • 2013-05-28
    • US13231803
    • 2011-09-13
    • Yasuhiro NitoHisao KamoTetsuro NoguchiRyo TaguriIsamu OguriOlivia Herlambang
    • Yasuhiro NitoHisao KamoTetsuro NoguchiRyo TaguriIsamu OguriOlivia Herlambang
    • B41M5/40
    • B41M5/52B41M5/5218B41M5/5227Y10T428/256
    • A recording medium includes an ink-receiving layer on a substrate, in which the ink-receiving layer contains a hydrated alumina, an alkylsulfonic acid having 1 to 4 carbon atoms, and at least one salt of a sulfur compound represented by general formula (1) or (2): R1—SO2M1  general formula (1) R2—SO2—SM2  general formula (2) wherein R1 and R2 each represent an alkyl group, an aryl group, or a heterocyclic group; and M1 and M2 each represent an alkali metal, ammonium, or an alkanolamine. The proportion of the alkylsulfonic acid having 1 to 4 carbon atoms is in the range of 1.0% by mass to 2.0% by mass with respect to the hydrated alumina. The proportion of the salt of the sulfur compound is in the range of 0.2% by mass to 4.0% by mass with respect to the hydrated alumina.
    • 记录介质包括在基板上的油墨接收层,其中油墨接收层含有水合氧化铝,具有1至4个碳原子的烷基磺酸和至少一种由通式(1)表示的硫化合物的盐 )或(2):R1-SO2M1通式(1)R2-SO2-SM2通式(2)其中R1和R2各自表示烷基,芳基或杂环基; M1和M2各自表示碱金属,铵或链烷醇胺。 相对于水合氧化铝,具有1〜4个碳原子的烷基磺酸的比例在1.0质量%〜2.0质量%的范围内。 硫化合物的盐的比例相对于水合氧化铝为0.2质量%〜4.0质量%。