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    2.
    发明专利
    未知

    公开(公告)号：BRPI0512737A

    公开(公告)日：2008-04-08

    申请号：BRPI0512737

    申请日：2005-07-04

    Applicant: CANON KK

    Inventor： OKAMURA DAIJI ,  SATO SHIN-ICHI ,  YOSHIZAWA JUN ,  NAKAMURA KUNIHIKO ,  YAMASHITA TOMOHIRO ,  JINNOU MASANORI

    IPC: B41J2/01 ,  B41M5/00 ,  C09B47/26 ,  C09D11/00 ,  C09D11/322 ,  C09D11/328

    Abstract: An ink jet ink is disclosed which includes water, a water-soluble organic solvent and a coloring material and has excellent properties. The coloring material is a specific phthalocyanine derivative and is contained in a specific amount in the ink. The water-soluble organic solvent includes a specific amount of 2-pyrrolidone. In addition, a d 75 value is in a specific range where the d 75 value corresponds to 75% of a dispersion distance distribution, measured by a small angle X-ray scattering method, of molecular aggregates in the ink jet ink whose coloring material concentration is adjusted to 0.5 mass%.

    3.
    发明专利
    未知

    公开(公告)号：BRPI0512711A

    公开(公告)日：2008-04-01

    申请号：BRPI0512711

    申请日：2005-07-04

    Applicant: CANON KK

    Inventor： YOSHIZAWA JUN ,  NAKAMURA KUNIHIKO ,  OKAMURA DAIJI ,  JINNOU MASANORI ,  YAMASHITA TOMOHIRO ,  SATO SHINICHI

    IPC: B41J2/01 ,  B41M5/00 ,  C09B47/26 ,  C09D11/00

    Abstract: There is provided ink jet ink containing at least a coloring material, in which: the coloring material is a compound represented by the following general formula (I) or a salt thereof; a content (weight%) of the coloring material is 3.0 weight% or more with respect to a total weight of the ink jet ink; in a dispersion distance distribution, measured by a small-angle X-ray scattering method, of molecular aggregates in the ink jet ink whose coloring material concentration is adjusted to 3.0 weight%, a dispersion distance d 75 value corresponding to 75% of the distribution is 3.0 mass% is 6.50 nm or more and 7.10 nm or less:

    5.
    发明专利
    未知

    公开(公告)号：DE602005020146D1

    公开(公告)日：2010-05-06

    申请号：DE602005020146

    申请日：2005-07-04

    Applicant: CANON KK

    Inventor： FUJIMOTO KUNIAKI ,  SATO SHIN-ICHI ,  YOSHIZAWA JUN ,  AIKAWA YOSHIHIDE ,  NAKAMURA KUNIHIKO ,  JINNOU MASANORI

    IPC: B41J2/01 ,  B41J2/175 ,  B41M5/00 ,  C09B5/14 ,  C09D11/00 ,  C09D11/30

    Abstract: Provided is an ink jet ink containing a coloring material having a buffer region in an ink use range, the ink jet ink being capable of suppressing the occurrence of the deterioration (dissolution) of a heating portion surface in contact with liquid; and the disconnection of wiring for applying a voltage to a heating portion even when long term continuous printing is performed. The ink jet ink is used for an ink jet recording apparatus equipped with a recording head having a heating portion surface in contact with liquid comprising a metal and/or a metal oxide. The ink jet ink contains a coloring material in a content (mass%) of 3 mass% or more with respect to the total mass of the ink jet ink. The coloring material is a colorant having a buffer region in an ink use range, and comprises a compound represented by the following general formula (I) and/or a compound represented by the following general formula (II). General formula (II) €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒH(OCH 2 CH 2 ) p R 5

    8.
    发明专利
    未知

    公开(公告)号：AT461979T

    公开(公告)日：2010-04-15

    申请号：AT05758024

    申请日：2005-07-04

    Applicant: CANON KK

    Inventor： FUJIMOTO KUNIAKI ,  SATO SHIN-ICHI ,  YOSHIZAWA JUN ,  AIKAWA YOSHIHIDE ,  NAKAMURA KUNIHIKO ,  JINNOU MASANORI

    IPC: B41J2/01 ,  B41J2/175 ,  B41M5/00 ,  C09B5/14 ,  C09D11/00 ,  C09D11/30

    Abstract: Provided is an ink jet ink containing a coloring material having a buffer region in an ink use range, the ink jet ink being capable of suppressing the occurrence of the deterioration (dissolution) of a heating portion surface in contact with liquid; and the disconnection of wiring for applying a voltage to a heating portion even when long term continuous printing is performed. The ink jet ink is used for an ink jet recording apparatus equipped with a recording head having a heating portion surface in contact with liquid comprising a metal and/or a metal oxide. The ink jet ink contains a coloring material in a content (mass%) of 3 mass% or more with respect to the total mass of the ink jet ink. The coloring material is a colorant having a buffer region in an ink use range, and comprises a compound represented by the following general formula (I) and/or a compound represented by the following general formula (II). General formula (II) €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒH(OCH 2 CH 2 ) p R 5

    9.
    发明专利
    未知

    公开(公告)号：BRPI0511903A

    公开(公告)日：2008-01-15

    申请号：BRPI0511903

    申请日：2005-07-04

    Applicant: CANON KK

    Inventor： NAKAMURA KUNIHIKO ,  SATO SHIN-ICHI ,  YOSHIZAWA JUN ,  MAFUNE KUMIKO ,  TAKAYAMA HIDEKI ,  OKAMURA DAIJI

    IPC: B41J2/01 ,  B41M5/00 ,  C09B33/18 ,  C09B33/28 ,  C09B56/08 ,  C09D11/00 ,  C09D11/328 ,  C09D11/38 ,  C09D11/40

    Abstract: It is an object of the present invention to provide a black ink for an ink jet which possesses preferable color as a black ink for an ink jet, can attain high ozone resistance, high image density and sticking recovery property, and can suppress the decomposition of the compound represented by the general formula (I) or salt thereof during long-term storage. According to the present invention, there is provided a black ink for an ink jet characterized by comprising at least a compound represented by the following general formula (I) or a salt thereof, characterized in that the black ink comprises at least one moisture-retaining nitrogen compound, and the pH of the ink and the pH of the ink after storing for 10 days in an environment at a temperature of 60°C are 9.5 or less.

    INKJET BLACK INK, INK SET, INKJET RECORDING METHOD, INK CARTRIDGE, RECORDING UNIT, AND INKJET RECORDER
    10.
    发明公开
    INKJET BLACK INK, INK SET, INKJET RECORDING METHOD, INK CARTRIDGE, RECORDING UNIT, AND INKJET RECORDER 有权
    苏格兰INKJET-TINTE，TINTENKOMBINATION，INKJET-AUFZEICHNUNGSVERFAHREN，TINTENPATRONE，AUFZEICHNUNGSAGGREGAT UND INKJET-AUFZEICHNUNGSGERÄT

    公开(公告)号：EP1783180A4

    公开(公告)日：2007-08-29

    申请号：EP05758108

    申请日：2005-07-04

    Applicant: CANON KK

    Inventor： TAKAYAMA HIDEKI ,  MAFUNE KUMIKO ,  OKAMURA DAIJI ,  SATO SHIN-ICHI ,  YOSHIZAWA JUN ,  NAKAMURA KUNIHIKO

    IPC: B41J2/01 ,  B41M5/00 ,  C09B33/18 ,  C09B35/64 ,  C09D11/00 ,  C09D11/322 ,  C09D11/326 ,  C09D11/328 ,  C09D11/38

    CPC classification number: C09B35/64 ,  C09D11/32 ,  C09D11/40

    Abstract: Disclosed is an inkjet black ink which is improved in weather resistance, optical density and fixation resistance to recording head nozzles. Specifically disclosed is an inkjet black ink containing at least a colorant and water-soluble organic solvents which is characterized in that the colorant is composed of a compound represented by the general formula (I) below or a salt thereof, the relative dielectric constant of the ink is not less than 30.0 and less than 70.0 at 20°C, and the amount of water-soluble organic solvents capable of dissolving not less than 1.0 mass% of the compound represented by the general formula (I) below or a salt thereof at 25°C is not less than 50.0 mass% of the total water-soluble organic solvents contained in the inkjet black ink.

    Abstract translation: 本发明的目的在于提供一种能够提高记录头的喷嘴的耐候性，光学密度和粘着恢复性的喷墨黑色油墨。 根据本发明，提供一种喷墨黑色油墨，其至少包含着色材料和水溶性有机溶剂，其中着色材料是由以下通式（I）表示的化合物或其盐，以及 水溶性有机溶剂是在20℃下相对介电常数为30.0以上且小于70.0的水溶性有机溶剂，能够溶解下述通式（I）表示的化合物或其盐， 在25℃下为1.0质量％以上，相对于喷墨黑色油墨中所含的全部水溶性有机溶剂的总含量为50.0质量％以上。

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