公开(公告)号：AT486107T

公开(公告)日：2010-11-15

申请号：AT05755744

申请日：2005-06-28

Applicant: CANON KK

Inventor： HAKAMADA SHINICHI ,  IMAI TAKASHI ,  SANADA MIKIO ,  NITO YASUHIRO ,  IWATA TETSU ,  SUGAMA SADAYUKI

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

Abstract: An aqueous ink comprises water, a water-insoluble coloring material, and plurality of water-soluble organic solvents and the plurality of water-soluble organic solvents including a good medium or good mediums for the water-insoluble coloring material and a poor medium or poor mediums for the water-insoluble coloring material. The ratio of the content of the poor medium and the content of the good medium is in a specific range. A water-soluble organic solvent showing the maximum Ka value out of respective Ka values of the plurality of water-soluble organic solvents is the poor medium. When the aqueous ink is in contact with a specific reaction liquid, the dissolution state or dispersed state of the water-insoluble coloring material in the ink is made unstable. As a result, an image which has a sufficiently large area factor even with a small amount of ink droplets and is excellent in image density, bleeding resistance, and fixability can be obtained. In addition, the aqueous ink is excellent in storage stability.

公开(公告)号：AT470693T

公开(公告)日：2010-06-15

申请号：AT05755859

申请日：2005-06-28

Applicant: CANON KK

Inventor： TSUJIMURA MASASHI ,  SANADA MIKIO ,  NITO YASUHIRO ,  SUGAMA SADAYUKI

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

Abstract: A cyan ink applicable to an ink set has multiple aqueous inks each containing at least: water; a water-insoluble coloring material; and multiple water-soluble organic solvents including a good solvent with respect to the water-insoluble coloring material and a poor solvent with respect to the water-insoluble coloring material. A ratio of a poor solvent to a good solvent in the cyan ink is in a specific range. A water-soluble organic solvent showing the maximum Ka value out of respective Ka values of the multiple water-soluble organic solvents is the poor solvent. A ratio of a poor solvent to a good solvent in an arbitrary aqueous ink in the ink set except the cyan ink and the ratio of the poor solvent to the good solvent in the cyan ink satisfy a specific relationship.

公开(公告)号：DE602008000459D1

公开(公告)日：2010-02-11

申请号：DE602008000459

申请日：2008-02-28

Applicant: CANON KK

Inventor： MIZUTANI MICHINARI ,  SANADA MIKIO

IPC: B41J2/01 ,  B41J2/21 ,  B41M5/00 ,  C09D11/00 ,  C09D11/322 ,  C09D11/324 ,  C09D11/38

公开(公告)号：DE69941020D1

公开(公告)日：2009-07-30

申请号：DE69941020

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：AT425005T

公开(公告)日：2009-03-15

申请号：AT05822525

申请日：2005-12-27

Applicant: CANON KK

Inventor： SANADA MIKIO ,  MATSUMOTO NOBUYUKI ,  KOITABASHI NORIBUMI

IPC: B41J2/165

公开(公告)号：AT402229T

公开(公告)日：2008-08-15

申请号：AT04010199

申请日：2004-04-29

Applicant: CANON KK

Inventor： WATANABE TOMONARI ,  SANADA MIKIO ,  OGASAWARA MASASHI ,  TOKUDA YUI

IPC: C09D11/00

Abstract: An aqueous ink comprising at least water, a water-soluble organic solvent and a colorant. The colorant comprises a pigment containing a pigment particle having at least one ionic group bonded to a surface of the pigment particle directly or via another atomic group. The organic solvent undergoes completely or substantially no solvation with the pigment and the ionic group of the pigment particle undergoes completely or substantially no ion dissociation in the organic solvent.

公开(公告)号：BRPI0511981A

公开(公告)日：2008-01-22

申请号：BRPI0511981

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

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：DE60034100T2

公开(公告)日：2007-12-13

申请号：DE60034100

申请日：2000-12-05

Applicant: CANON KK

Inventor： HAYASHI HIROKI ,  SUGAMA SADAYUKI ,  HATTORI SHOZO ,  YAMAMOTO HAJIME ,  SHIMIZU EIICHIRO ,  SANADA MIKIO ,  KOSHIKAWA HIROSHI ,  KITABATAKE KENJI

IPC: B41J2/175

Abstract: A fiber body which exhibits sufficient ink supplying characteristics for keeping up with the trend toward diversification of ink and high printing speed while ensuring an easy and simple ink injection operation and a liquid container having the same. The ink tank 1 has a PP fiber body (crosshatched area of the figures) 2, as a negative pressure generating member for an ink jet head which ejects liquid to perform recording, arranged almost all over the interior thereof, so as to allow the fiber body to hold a liquid to be supplied to an ink jet head. On the top of the tank casing, provided is an atmosphere communication port 3. And as a PP fiber body 2, used is an assembly of intertwined PP fibers of which surface has been subjected to surface treatment of giving hydrophilic nature thereto.

公开(公告)号：DE60033487D1

公开(公告)日：2007-04-05

申请号：DE60033487

申请日：2000-12-05

Applicant: CANON KK

Inventor： HAYASHI HIROKI ,  SUGAMA SADAYUKI ,  HATTORI SHOZO ,  YAMAMOTO HAJIME ,  SHIMIZU EIICHIRO ,  SANADA MIKIO ,  KOSHIKAWA HIROSHI ,  KITABATAKE KENJI

IPC: B41J2/175

Abstract: To provide a recording liquid feed path, recording liquid container, and recording liquid feed device having the same, as well surface modifying method for the recording liquid feed device to feed efficiently a recording liquid for ejection through a feed tube. If the interior of the feed tube is not rendered hydrophilic as shown in Fig. 3A, air which has passed through a wall of the feed tube forms a bubble, which bubble adheres to an inner surface of the feed tube and obstructs a flow of the recording liquid. But if the inner surface of the feed tube is rendered hydrophilic to form a hydrophilic surface as shown in Fig. 3B, the recording liquid is conducted along the hydrophilic surface at the inner surface portion of the feed tube with the bubble adhered thereto, so that the adhesion area of the bubble to the feed tube inner surface is reduced and the bubble floats from the inner surface. Consequently, when the recording liquid is fed, the bubble can be removed easily by the flow of the recording liquid and thus the flow of the recording liquid can be prevented from being obstructed by the bubble.

公开(公告)号：ES2251930T3

公开(公告)日：2006-05-16

申请号：ES00126177

申请日：2000-11-30

Applicant: CANON KK

Inventor： SANADA MIKIO ,  SUGAMA SADAYUKI ,  HAYASHI HIROKI

IPC: C08J7/12 ,  B05D1/18 ,  C08F8/42 ,  C08J7/04 ,  C08J7/14 ,  C09D183/00 ,  C09D183/04 ,  C09D183/08 ,  C09D183/12 ,  D06M13/507 ,  D06M15/647 ,  D06M23/00 ,  D06M13/513 ,  D06M15/643

Abstract: Método de modificación de superficies para modificar una superficie que comprende, como mínimo, una parte de la superficie de un elemento estructural mediante la administración de un grupo funcional para la modificación de dicha superficie, en el que dicho método de modificación de superficies comprende: una primera etapa de administración de un líquido que contiene un polímero que comprende una primera parte que tiene un grupo funcional y una segunda parte que tiene una energía interfacial diferente de la de dicho grupo funcional y, aproximadamente, igual a la energía superficial de dicha superficie y que es diferente del material constituyente que forma dicha superficie, en el que dicho líquido es capaz de disolver dicho polímero y es humectable con dicha superficie de dicho elemento a tratar; una segunda etapa de orientación de la segunda parte de dicho polímero hacia dicha superficie y la orientación de dicha primera parte hacia una cara diferente de dicha superficie para proporcionar dicho grupo funcional a dicha superficie; una tercera etapa de administración de un catalizador para dividir un polímero en el líquido que contiene el polímero en dicha primera etapa; una cuarta etapa de división de dicho polímero mientras dicho catalizador de división se concentra en dicho líquido durante su evaporación utilizando dicho catalizador para dividir un polímero para generar polímeros fraccionados sobre dicha superficie; y una quinta etapa de unión de dichos polímeros fraccionados entre sí sobre dicha superficie, en la que dicho polímero se obtiene de una manera en la que el fraccionamiento se realiza mediante dicho catalizador para dividir un polímero y se unen los polímeros fraccionados.