公开(公告)号：DE602008006290D1

公开(公告)日：2011-06-01

申请号：DE602008006290

申请日：2008-04-29

Applicant: CANON KK

Inventor： OKAMURA DAIJI ,  YOSHIZAWA JUN

IPC: B41J2/01 ,  B41M5/00 ,  C09B35/037 ,  C09B35/34 ,  C09D11/00 ,  C09D11/326 ,  C09D11/328 ,  C09D11/38 ,  C09D11/40

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:

公开(公告)号：AT481457T

公开(公告)日：2010-10-15

申请号：AT05758108

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

Abstract: The present invention aims to provide an ink jet black ink which can improve weatherability, optical density and sticking recovery property of nozzles of a recording head. According to the present invention, an ink jet black ink is provided which comprises at least a coloring material and a water-soluble organic solvent, wherein the coloring material is a compound represented by the following general formula (I) or a salt thereof, and the water-soluble organic solvent is a water-soluble organic solvent having a relative permittivity of from 30.0 or more to less than 70.0 at 20°C and capable of dissolving the compound represented by the following general formula (I) or a salt thereof, by 1.0 mass% or more at 25°C, and is in a content of 50.0 mass% or more with respect to the total content of all water-soluble organic solvents contained in the ink jet black ink.

公开(公告)号：AT481456T

公开(公告)日：2010-10-15

申请号：AT05758158

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.

公开(公告)号：BRPI0512898A

公开(公告)日：2008-04-15

申请号：BRPI0512898

申请日：2005-07-04

Applicant: CANON KK

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

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

Abstract: The present invention aims to provide an ink jet black ink which can improve weatherability, optical density and sticking recovery property of nozzles of a recording head. According to the present invention, an ink jet black ink is provided which comprises at least a coloring material and a water-soluble organic solvent, wherein the coloring material is a compound represented by the following general formula (I) or a salt thereof, and the water-soluble organic solvent is a water-soluble organic solvent having a relative permittivity of from 30.0 or more to less than 70.0 at 20°C and capable of dissolving the compound represented by the following general formula (I) or a salt thereof, by 1.0 mass% or more at 25°C, and is in a content of 50.0 mass% or more with respect to the total content of all water-soluble organic solvents contained in the ink jet black ink.

公开(公告)号：EP2031028A4

公开(公告)日：2014-03-12

申请号：EP07744450

申请日：2007-05-24

Applicant: CANON KK

Inventor： MAFUNE KUMIKO ,  SANADA MIKIO ,  MORIBE KENJI ,  WATANABE TOMONARI ,  OKAMURA DAIJI ,  KUDO SATOSHI ,  NAKAMURA FUMIHARU

IPC: C09D11/00 ,  B41J2/01 ,  B41M5/00 ,  C09D11/322 ,  C09D11/324 ,  C09D11/326 ,  C09D11/38

CPC classification number: C09D11/322

Abstract: Provided herein is an aqueous ink, which is excellent in both image density and fixing ability irrespective of the kind of a recording medium even when the volume of an ink droplet is small and has such excellent properties that white stripes are not caused even when high-speed recording is conducted. The aqueous ink comprises at least water, a water-soluble organic solvent, a water-insoluble coloring material, a surfactant and a poor medium for the water-insoluble coloring material and/or a salt. The dynamic surface tension of the aqueous ink at a lifetime of 50 milliseconds determined by a maximum bubble pressure method is higher than 47 mN/m, and the dynamic surface tension at a lifetime of 5,000 milliseconds determined by the maximum bubble pressure method is 38 mN/m or lower.

Abstract translation: 这里提供的是一种水性油墨，即使在油墨体积小的情况下，即使在高分辨率的情况下也不会产生白色条纹，其图像浓度和定影能力都优异，而与记录介质的种类无关。 进行速度记录。 水性油墨至少包含水，水溶性有机溶剂，水不溶性着色材料，表面活性剂和用于水不溶性着色材料和/或盐的不良介质。 通过最大气泡压力法确定的50毫秒寿命的水性油墨的动态表面张力高于47mN / m，通过最大气泡压力法确定的5000毫秒的寿命的动态表面张力为38mN / m以下。

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：EP2649142A4

公开(公告)日：2015-05-27

申请号：EP12764352

申请日：2012-03-19

Applicant: CANON KK

Inventor： OKAMURA DAIJI ,  YAMASAKI KOUSUKE ,  MORIBE KENJI ,  OKUMURA KOUICHIROU ,  SHIIBA KENICHI ,  KISHI HIROMITSU

IPC: C09D11/00 ,  B41J2/01 ,  B41M5/00 ,  C08G18/65 ,  C09D11/102 ,  C09D11/30 ,  C09D11/322 ,  C09D11/54

CPC classification number: C09D11/30 ,  B41J2/01 ,  B41J2/17503 ,  C09D11/102 ,  C09D11/322 ,  C09D11/54 ,  C09D175/04

公开(公告)号：EP1775327A4

公开(公告)日：2008-08-20

申请号：EP05780169

申请日：2005-07-28

Applicant: CANON KK

Inventor： OKAMURA DAIJI ,  TAKIZAWA YOSHIHISA ,  SATO SHINICHI ,  YOSHIZAWA JUN ,  NAKAMURA KUNIHIKO ,  AIKAWA YOSHIHIDE ,  YAMASHITA TOMOHIRO ,  JINNOU MASANORI

IPC: B41J2/01 ,  B41M5/00 ,  C09B47/26 ,  C09D11/00 ,  C09D11/322 ,  C09D11/40

CPC classification number: C09D11/40

Abstract: A light ink-jet ink which has excellent coloring properties and can combine resistance to environmental gases with freedom from bronzing. The light ink-jet ink is used in combination with a deep ink-jet ink having a relatively high colorant content, and comprises water, a water-soluble organic solvent, and a colorant. The light ink-jet ink is characterized in that the deep ink-jet ink and the light ink-jet ink satisfy a specific requirement.

公开(公告)号：EP2480614A4

公开(公告)日：2014-03-05

申请号：EP10837205

申请日：2010-10-28

Applicant: CANON KK

Inventor： OKAMURA DAIJI ,  YAMASAKI KOUSUKE ,  ISHII MITSURU ,  NISHINO YUUKI ,  TAKADA YOICHI ,  ICHINOSE HIROFUMI ,  TOMIOKA HIROSHI

IPC: C09D11/00 ,  B41J2/01 ,  B41M5/00 ,  C09D11/322

CPC classification number: C09D11/322 ,  B41J2/2107

Abstract: An ink jet ink contains a self-dispersing pigment and a polyurethane polymer. The polyurethane polymer has units derived from a polyisocyanate, a polyol having no acid group, and a diol having an acid group. The polyurethane polymer has a cross-linked structure and an acid value of the polyurethane polymer is 60 mgKOH/g or more and 100 mgKOH/g or less.