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    INK, INK JET RECORDING METHOD, RECORDING UNIT, INK CARTRIDGE, AND INK JET RECORDING APPARATUS
    4.
    发明公开
    INK, INK JET RECORDING METHOD, RECORDING UNIT, INK CARTRIDGE, AND INK JET RECORDING APPARATUS 有权
    TINTE，TINTENSTRAHLAUFZEICHNUNGSVERFAHREN，AUFZEICHNUNGSEINHEIT，TINTENPATRONE UNDTINTENSTRAHLAUFZEICHNUNGSGERÄT

    公开(公告)号：EP1767590A4

    公开(公告)日：2007-12-05

    申请号：EP05757791

    申请日：2005-07-04

    Applicant: CANON KK

    Inventor： YOSHIZAWA JUN ,  SATO SHIN-ICHI ,  NAKAMURA KUNIHIKO ,  YAMASHITA TOMOHIRO

    IPC: B41J2/01 ,  B41M5/00 ,  C09B56/04 ,  C09B56/08 ,  C09B67/44 ,  C09D11/00 ,  C09D11/328

    CPC classification number: C09D11/40 ,  C09D11/32

    Abstract: An ink for ink jet recording satisfying the following requirements (A) and (B) possesses excellent color development and moisture resistance. (A) A color difference E of 9 or less as judged by a method comprising the following steps (1) to (3). (1) The step of applying an ink containing a colorant, water, and a water soluble organic solvent, which has a lower evaporative rate X than water, has a moisture absorption Y (mass%) of not less than 20 and satisfies Y ≥ 2.8X + 10, and then superimposing an ink having the same composition as the above ink except for the use of water instead of the colorant. (2) The step of allowing the record to stand under the first and second conditions. (3) The step of judging the record in terms of a color difference (ΔE) represented by formula (1): wherein L1, a1 and b1 represent L, a and b of Lab color system before the second standing; and L2, a2 and b2 represent L, a and b of Lab color system after the second standing. (B) A content of the water soluble organic solvent satisfying Y ≤ 2.8X + 10 of not less than 50% by mass.

    Abstract translation: 满足以下要求（A）和（B）的用于喷墨记录的油墨具有优异的显色性和耐湿性。 （A）通过包括以下步骤（1）至（3）的方法判断的色差E为9或更小。 （1）涂布含有着色剂，水和水溶性有机溶剂且蒸发率X比水少的油墨的油墨的吸湿率Y（质量％）为20以上，满足Y≥ 2.8X + 10，然后叠加与上述油墨具有相同组成的油墨，除了使用水代替着色剂。 （2）允许记录在第一和第二条件下站立的步骤。 （3）根据由公式（1）表示的色差（ΔE）来判断记录的步骤：其中L1，a1和b1代表第二站之前Lab颜色系统的L，a和b; 而L2，a2和b2代表第二站之后Lab颜色系统的L，a和b。 （B）满足Y≤2.8X+ 10的水溶性有机溶剂的含量不小于50质量％。

    6.
    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%.

    7.
    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:

    8.
    发明专利
    未知

    公开(公告)号：AT551405T

    公开(公告)日：2012-04-15

    申请号：AT05757791

    申请日：2005-07-04

    Applicant: CANON KK

    Inventor： YOSHIZAWA JUN ,  SATO SHIN-ICHI ,  NAKAMURA KUNIHIKO ,  YAMASHITA TOMOHIRO

    IPC: B41J2/01 ,  B41M5/00 ,  C09B56/04 ,  C09B56/08 ,  C09B67/44 ,  C09D11/00 ,  C09D11/328

    Abstract: An ink-jet ink contains at least a coloring material and a specific water-soluble organic solvent and has both excellent coloring property and excellent humidity resistance. The coloring material exhibits a small (9 or less) color difference ”E value which is determined by a method including a series of specific steps and is represented as the square root of (L 1 - L 2 ) 2 + (a 1 - a 2 ) + (b 1 - b 2 ) 2 . The specific water-soluble organic solvent has an evaporation rate X smaller than that of water and a moisture absorptivity Y, the values of X and Y satisfying the relation of Y ‰ 2.8X + 10. The content of the specific water-soluble organic solvent is 50 mass % or more of the total amount of water-soluble organic solvents contained in the ink.

    9.
    发明专利
    未知

    公开(公告)号：AT483005T

    公开(公告)日：2010-10-15

    申请号：AT05758159

    申请日：2005-07-04

    Applicant: CANON KK

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

    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:

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