公开(公告)号：EP1767593A4

公开(公告)日：2007-10-24

申请号：EP05758024

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

CPC classification number: C09B5/14 ,  C09D11/328

Abstract: This invention provides an ink for ink jet recording that, even when an ink for ink jet recording containing a colorant having a buffer region in an ink working range is used to perform continuous printing for a long period of time, can suppress a deterioration (dissolution) on a liquid contact face in a heat generating part and can suppress the occurrence of disconnection in wiring for applying voltage to the heat generating part. The ink for ink jet recording is used in an ink jet recording apparatus provided with a recording head having a metal and/or metal oxide-containing heat generating part liquid contact face and has a colorant content (% by mass) of not less than 3% by mass based on the total mass of the ink for ink jet recording. The colorant has a buffer region in an ink working range. The ink further contains a compound represented by general formula (I) and/or a compound represented by general formula (II).

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％。

公开(公告)号：EP2410026A4

公开(公告)日：2013-12-04

申请号：EP09768485

申请日：2009-03-17

Applicant: CANON KK

Inventor： TAKANO AKI ,  SATO SHIN-ICHI

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

CPC classification number: C09D11/32

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。

公开(公告)号：EP1767594A4

公开(公告)日：2009-06-03

申请号：EP05758158

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

CPC classification number: C09B35/64 ,  C09B5/14 ,  C09B33/18 ,  C09B35/50 ,  C09D11/328

Abstract: Disclosed is an inkjet black ink having a desirable color as a black ink for inkjet recording which enables to obtain high ozone resistance, high image density and recovery from fixation. Such an inkjet black ink is suppressed in decomposition of a compound represented by the general formula (I) below or a salt thereof during long-term storage. Specifically disclosed is an inkjet black ink containing at least a compound represented by the general formula (I) below or a salt thereof which is characterized in that it further contains at least one moisture-keeping nitrogen-containing compound and the initial pH of the ink and the pH of the ink after 10 days storage at 60°C are not more than 9.5.

Abstract translation: 本发明的目的是提供一种用于喷墨的黑色油墨，其具有优选的颜色作为用于喷墨的黑色油墨，可以获得高耐臭氧性，高图像密度和粘附恢复性，并且可以抑制 由通式（I）表示的化合物或其盐在长期储存期间。 根据本发明，提供一种用于喷墨的黑色油墨，其特征在于至少包含由以下通式（I）表示的化合物或其盐，其特征在于，黑色油墨包含至少一种保湿性 氮化合物，并且在温度为60℃的环境中储存10天后，油墨的pH值和油墨的pH值为9.5以下。

公开(公告)号：EP1767591A4

公开(公告)日：2008-08-27

申请号：EP05758022

申请日：2005-07-04

Applicant: CANON KK

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

IPC: B41J2/01 ,  B41M5/00 ,  C09B5/14 ,  C09B62/04 ,  C09B67/44 ,  C09D11/00 ,  C09D11/322 ,  C09D11/328 ,  C09K15/30

CPC classification number: C09D11/40 ,  C09D11/32

Abstract: This invention provides an ink for ink jet recording, characterized by comprising a colorant comprising at least a compound represented by general formula (I) or its salt: and a compound represented by general formula (II): This ink can provide image quality comparable with the image quality of silver salt photographs and can realize high lightfastness in records.

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%.

公开(公告)号：EP1752503A4

公开(公告)日：2012-12-05

申请号：EP05770625

申请日：2005-08-03

Applicant: CANON KK

Inventor： SATO SHIN-ICHI

IPC: B41J2/01 ,  B41J2/165 ,  B41J2/17 ,  B41J2/18 ,  B41J2/185 ,  B41M5/00 ,  C09D11/00 ,  C09D11/322 ,  C09D11/328 ,  C09D11/40

CPC classification number: C09D11/38 ,  C09D11/40

公开(公告)号：EP1783181A4

公开(公告)日：2008-10-08

申请号：EP05768889

申请日：2005-07-28

Applicant: CANON KK

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

IPC: B41J2/01 ,  B41M5/00 ,  C09B5/14 ,  C09B47/20 ,  C09B47/26 ,  C09B56/04 ,  C09D11/00 ,  C09D11/328

CPC classification number: C09D11/32 ,  C09D11/40

Abstract: Disclosed is an inkjet yellow ink which is balanced in color fading due to light and environmental gases, and can be used together with an ink having excellent light resistance and environmental gas resistance. Specifically disclosed is an inkjet yellow ink used for forming an image together with a yellow ink cyan ink containing, as a colorant, a compound represented by the general formula (1) or a compound represented by the general formula (2). The inkjet yellow ink is characterized by containing, as a colorant, at least one substance selected from the group A below and at least one substance selected from the group B below. Group A: C.I. direct yellow 132, C.I. direct yellow 173 Group B: C.I. direct yellow 142, C.I. direct yellow 86, a compound represented by the general formula (3)

公开(公告)号：EP1767592A4

公开(公告)日：2007-12-12

申请号：EP05758023

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

CPC classification number: C09B47/26 ,  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%.