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    • 2. 发明授权
    • Black ink and ink set for inkjet recording
    • 黑色油墨和墨水设置用于喷墨记录
    • US07491266B2
    • 2009-02-17
    • US10578229
    • 2004-11-04
    • Toshiki TaguchiNaotaka WachiManabu Ogawa
    • Toshiki TaguchiNaotaka WachiManabu Ogawa
    • C09D11/02
    • C09D11/40
    • To provide an inkjet black ink having excellent image durability and ink discharge properties and an ink set, the inkjet black ink, which contains a dye having a λmax of from 500 nm to 700 nm and a half-band width of 100 nm or more in an absorption spectrum of a diluted solution standardized at an absorbance of 1.0 at the λmax, has the change ratio of absorbance at the λmax in the visible region, specified in the specification; and the inkjet ink set containing at least two black inks having different densities has the relationship among the at least two black inks, specified in the specification.
    • 为了提供具有优异的图像耐久性和油墨排出性能的喷墨黑色油墨和油墨组,该喷墨黑色油墨包含具有500nm至700nm的拉姆达姆的染料和100nm以上的半带宽度 在lambdamax的吸光度为1.0时标准化的稀释溶液的吸收光谱具有说明书中规定的可见区域中的lambdamax的吸光度变化率; 并且包含至少两种具有不同密度的黑色油墨的喷墨油墨组在本说明书中指定的至少两种黑色油墨之间具有关系。
    • 7. 发明申请
    • Ink for ink jet recording, ink set for ink jet recording and ink jet recording method
    • 用于喷墨记录的墨水,用于喷墨记录的墨水组和喷墨记录方法
    • US20050057629A1
    • 2005-03-17
    • US10502388
    • 2003-01-23
    • Toshiki TaguchiManabu OgawaTakashi Ozawa
    • Toshiki TaguchiManabu OgawaTakashi Ozawa
    • B41M5/00B41M5/52C09B29/033C09B29/36C09D11/00G01D11/00
    • C09D11/00B41M5/52C09B29/0025C09B29/3604C09D11/32C09D11/328
    • An object of the present invention is to provide a magenta ink for ink jet recording excellent in weathering resistance. An additional object of the present invention is to provide a magenta ink for ink jet recording which is preferably provided with a hue as magenta ink, exhibits a high stability in ejection and causes no defects in water resistance and image quality in addition to the aforesaid requirement. The objects of the present invention are accomplished with an ink for ink jet recording comprising a magenta dye selected from azo dyes dissolved or dispersed in an aqueous medium, characterized in that said magenta dye is a dye having a absorption maximum in a spectral range of from 500 to 580 nm in said aqueous medium and a more positive oxidation potential than 1.0V (vs SCE), particularly with the aforesaid ink for ink jet recording wherein the azo dye has a specific structure having a 5-membered heterocyclic ring and a 4-amino-6-membered heterocyclic ring connected to the azo group.
    • 本发明的目的是提供耐候性优良的用于喷墨记录的品红色油墨。 本发明的另一个目的是提供一种用于喷墨记录的品红色油墨,其优选地具有品红色油墨的色调,在喷射中表现出高稳定性,并且除了上述要求之外,不会产生耐水性和图像质量的缺陷 。 本发明的目的是通过一种用于喷墨记录的油墨来实现的,其包括选自溶于或分散在水性介质中的偶氮染料的品红色染料,其特征在于所述品红染料是在光谱范围内具有最大吸收的染料 在所述水性介质中为500〜580nm,比1.0V(与SCE)相比具有更高的氧化电位,特别是与上述喷墨记录用油墨相比,偶氮染料具有5元杂环的特殊结构, 连接到偶氮基的氨基-6-元杂环。