公开(公告)号：EP1764396A4

公开(公告)日：2009-06-10

申请号：EP05755739

申请日：2005-06-28

Applicant: CANON KK

Inventor： KITAMURA YUI ,  SANADA MIKIO ,  TAKIZAWA YOSHIHISA ,  OGASAWARA MASASHI ,  WATANABE TOMONARI ,  IMAI TAKASHI ,  NITO YASUHIRO ,  IWATA TETSU ,  HAKAMADA SHINICHI ,  SUGAMA SADAYUKI

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

CPC classification number: C09D11/326

Abstract: Disclosed is an aqueous ink containing water, a plurality of water-soluble organic solvents and a colorant. The colorant is composed of a pigment, and at least one ionic group is bonded to the surface of a pigment particle directly or via an other atomic group. The water-soluble organic solvents contain a good solvent and a poor solvent for the pigment. The poor solvent does not solvate the pigment at all or does not substantially solvate the pigment. The ionic group is not dissociated at all or is not substantially dissociated in the poor solvent. Furthermore, a poor solvent has the largest Ka value, which is determined by the Bristow method, among the water-soluble organic solvents.

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：AT433867T

公开(公告)日：2009-07-15

申请号：AT06112575

申请日：1999-03-19

Applicant: CANON KK

Inventor： OSUMI KOICHI ,  HATTORI YOSHIFUMI ,  TAKIZAWA YOSHIHISA ,  MISHINA SHINYA ,  SANADA MIKIO ,  TERAOKA HISASHI ,  YAKUSHIGAWA YUKO

IPC: B41J2/01 ,  B41M5/00 ,  C09C1/48 ,  C09D11/00 ,  C09D11/322 ,  C09D11/324 ,  C09D11/326 ,  C09D11/328 ,  C09D11/38

Abstract: Provided is a black ink capable of mitigating the dependency on image quality of recording media and giving a high quality image stably, which comprises at least one salt selected from the group consisting of (M1) 2 SO 4 , CH 3 COO(M1), Ph_COO(M1), (M1)NO 3 , (M1)Cl, (M1)Br, (M1)I, (M1) 2 SO 3 and (M1) 2 CO 3 , where M1 is an alkali metal, ammonium or organo-ammonium and Ph is a phenyl group, and a self dispersible carbon black.

公开(公告)号：DE60131326D1

公开(公告)日：2007-12-27

申请号：DE60131326

申请日：2001-06-21

Applicant: CANON KK

Inventor： YAKUSHIGAWA YUKO ,  TAKIZAWA YOSHIHISA ,  MAFUNE KUMIKO ,  TERAOKA HISASHI ,  KANKE TSUYOSHI

IPC: C09D11/00

Abstract: An ink set includes inks each containing a colorant and an aqueous medium, wherein in a fading test under conditions that cause fading corresponding to pseudo-indoor sunlight fading through a window for 3 years or more, the difference between respective images' ”E, the images being produced with the respective inks, is 10 or less in a CIELAB color space display system, and each of the images has a residual ratio of reflection density of 70% or more. By using the ink set including the color inks with which images having substantially the same fading ”E after long-term storage are produced, the color balance of a recorded image can be maintained after long-term storage.

公开(公告)号：DE60116820T2

公开(公告)日：2006-08-31

申请号：DE60116820

申请日：2001-09-03

Applicant: CANON KK

Inventor： TAKUHARA HIROYUKI ,  TAKIZAWA YOSHIHISA ,  MAFUNE KUMIKO ,  TERAOKA HISASHI ,  TAKADA YOICHI ,  ASAKI NORIYASU ,  TAKADA YUKO ,  KANKE TSUYOSHI

IPC: C09D11/00 ,  C09D11/02

Abstract: An ink set which comprises a black ink containing an aqueous medium and a pigment dispersed in the aqueous medium by an action of an ionic group, and at least two color inks each containing a coloring material and an aqueous medium, wherein (i) respective images formed with the respective color inks have the same DELTA E or have the difference in DELTA E that is 10 or less in a CIELAB color space display system in a fading test under conditions that cause fading corresponding to pseudo-indoor sunlight fading through a window for 3 years or more, and (ii) at least one of the color inks contains at least one of a coloring material and an additive that destabilize dispersion stability of the pigment in the black ink. The ink set can provide a high quality multicolor image keeping color balance after long preservation and showing less bleeding between black and color regions.

公开(公告)号：ES2256130T3

公开(公告)日：2006-07-16

申请号：ES01121094

申请日：2001-09-03

Applicant: CANON KK

Inventor： TAKUHARA HIROYUKI ,  TAKIZAWA YOSHIHISA ,  MAFUNE KUMIKO ,  TERAOKA HISASHI ,  TAKADA YOICHI ,  ASAKI NORIYASU

IPC: C09D11/02 ,  C09D11/00

Abstract: Conjunto de tintas que comprende una tinta negra que contiene un medio acuoso y un pigmento dispersado en el medio acuoso mediante la acción de un grupo iónico y, por lo menos, tres tintas de color conteniendo cada una de ellas un material colorante y un medio acuoso, en las cuales, (i) las respectivas imágenes formadas con las respectivas tintas de color tienen el mismo AE o tienen una diferencia en AE que es de 10 o menos en un sistema de indicación de un espacio de color CIELAB, siendo AE la diferencia entre la imagen inicial y la imagen después de un ensayo de decoloración bajo condiciones que producen una decoloración correspondiente a una decoloración pseudo-interior por luz solar a través de una ventana, durante 3 años o más, en la que las condiciones del ensayo de decoloración son de acuerdo con la norma ISO 10977, y (ii) por lo menos, una de las tintas de color contiene, por lo menos, un material colorante y un aditivo que desestabiliza la estabilidad de la dispersión del pigmentoen la tinta negra.

公开(公告)号：DE69434442T2

公开(公告)日：2006-05-24

申请号：DE69434442

申请日：1994-02-24

Applicant: CANON KK

Inventor： MAFUNE KUMIKO ,  EIDA TSUYOSHI ,  MURAI KEIICHI ,  HATTORI YOSHIFUMI ,  YAMAMOTO MAYUMI ,  NISHIWAKI OSAMU ,  TAKIZAWA YOSHIHISA ,  YAMAMOTO TAKAO ,  NAGASHIMA AKIRA ,  TONOGAKI MASAHIKO ,  SATO SHINICHI ,  KATSURAGI RYUJI ,  SANADA MIKIO ,  TERAOKA HISASHI ,  SAITO ERIKO

IPC: C09D11/00

Abstract: A metal-noncorrosive ink comprising a dye having at least one -COOM (M being an alkali metal atom or an ammonium ion) in its molecule and a liquid medium dissolving or dispersing the dye therein, wherein the ink comprises a sulfate and a hydroxide, and its pH is adjusted within a range of from 7 to 10.5.

公开(公告)号：CA2565700A1

公开(公告)日：2006-01-05

申请号：CA2565700

申请日：2005-06-28

Applicant: CANON KK

Inventor： KITAMURA YUI ,  SANADA MIKIO ,  OGASAWARA MASASHI ,  WATANABE TOMONARI ,  TAKIZAWA YOSHIHISA ,  SUGAMA SADAYUKI ,  HAKAMADA SHINICHI ,  NITO YASUHIRO ,  IWATA TETSU ,  IMAI TAKASHI

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

Abstract: Disclosed is an aqueous ink comprising at least water, a plurality of water-soluble organic solvents and a coloring material. The coloring material is a pigment, and, it contains a pigment particle having at least one ionic group bonded to a surface of the pigment particle directly or via another atomic group. The plurality of water-soluble organic solvents have a good medium or good mediums for the pigment and a poor medium or poor mediums for the pigment. The poor medium does not solvate perfectly or substantially the pigment. The ionic group undergoes perfectly or substantially no ionic dissociation in the poor medium. Also, among the respective Ka values of the plurality of water-soluble organic solvents as determined by the Bristow method, the Ka value of the poor medium is maximum.

公开(公告)号：CA2356809C

公开(公告)日：2005-11-22

申请号：CA2356809

申请日：2001-08-30

Applicant: CANON KK

Inventor： ASAKI NORIYASU ,  TAKADA YOICHI ,  TAKUHARA HIROYUKI ,  MAFUNE KUMIKO ,  KANKE TSUYOSHI ,  YAKUSHIGAWA YUKO ,  TAKIZAWA YOSHIHISA ,  TERAOKA HISASHI

IPC: C09D11/02 ,  C09D11/00 ,  B41J2/21

Abstract: An ink set which comprises a black ink containing an aqueous medium and a pigment dispersed in the aqueous medium by an action of an ionic group, and at least two color inks each containing a coloring material and an aqueous medium, wherein (i) respective images formed with the respective color inks have the same .DELTA.E or have the difference in .DELTA.E that is 10 or less in a CIELAB color space display system in a fading test under conditions that cause fading corresponding to pseudo-indoor sunlight fading through a window for 3 years or more, and (11) at least one of the color inks contains at least one of a coloring material and an additive that destabilize dispersion stability of the pigment in the black ink. The ink set can provide a high quality multicolor image keeping color balance after long preservation and showing less bleeding between black and color regions.

公开(公告)号：DE69434076T2

公开(公告)日：2005-11-17

申请号：DE69434076

申请日：1994-02-24

Applicant: CANON KK

Inventor： MAFUNE KUMIKO ,  EIDA TSUYOSHI ,  MURAI KEIICHI ,  HATTORI YOSHIFUMI ,  YAMAMOTO MAYUMI ,  NISHIWAKI OSAMU ,  TAKIZAWA YOSHIHISA ,  YAMAMOTO TAKAO ,  NAGASHIMA AKIRA ,  TONOGAKI MASAHIKO ,  SATO SHINICHI ,  KATSURAGI RYUJI ,  SANADA MIKIO ,  TERAOKA HISASHI ,  SAITO ERIKO

IPC: C09D11/00

Abstract: A metal-noncorrosive ink comprising a dye having at least one -COOM (M being an alkali metal atom or an ammonium ion) in its molecule and a liquid medium dissolving or dispersing the dye therein, wherein the ink comprises a sulfate and a hydroxide, and its pH is adjusted within a range of from 7 to 10.5.