公开(公告)号：JPH09109548A

公开(公告)日：1997-04-28

申请号：JP29068095

申请日：1995-10-13

Applicant: CANON KK

Inventor： YAMAMOTO MAYUMI ,  TAKIZAWA YOSHIHISA ,  SANADA MIKIO

IPC: B41J2/21 ,  B41J2/01 ,  B41J2/165 ,  B41M5/00 ,  C09D11/00 ,  C09D11/326 ,  C09D11/328 ,  C09D11/38 ,  C09D11/40

Abstract: PROBLEM TO BE SOLVED: To obtain a clear color image with high color density and a sharp edge, without line thickening even when two inks of different colors are printed one on another and without boundary extruding even when two inks of different colors are printed adjoiningly. SOLUTION: In an ink set used for a method for ink jet recording wherein a color image is recorded on a material to be recorded by using inks of at least two different colors by means of a method for ink jet recording system, the ink contains a dye, a liq. medium and a polymer substance as essential ingredients and has a viscosity of 1×10 to 1×10 Pa.s at 25 deg.C and a dye used for at least one ink among inks with at least two different colors is an anionic dye and a dye used for an ink with a different color from the ink is a combination of cationic dyes.

公开(公告)号：JP2006348304A

公开(公告)日：2006-12-28

申请号：JP2006213471

申请日：2006-08-04

Applicant: CANON KK

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

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

Abstract: PROBLEM TO BE SOLVED: To provide an ink capable of mitigating the dependency on image quality of recording media and giving a high quality image stably. SOLUTION: The ink for inkjet recording contains carbon black and a salt. The carbon black is a self dispersible carbon black having a hydrophilic group: -COO(M2) (wherein, M2 is a hydrogen atom, an alkali metal, ammonium or an organic ammonium) bonded to the surface of the carbon black through a substituted or nonsubstituted phenylene group. The salt is represented by Ph-COO(M1) (wherein, M1 is ammonium; and Ph is a phenyl group). COPYRIGHT: (C)2007,JPO&INPIT

公开(公告)号：JP2001162824A

公开(公告)日：2001-06-19

申请号：JP34691499

申请日：1999-12-06

Applicant: CANON KK

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

IPC: B41J2/175 ,  D06M13/51 ,  D06M13/513 ,  D06M15/647 ,  D06M101/00 ,  D06M101/16 ,  D06M101/18

Abstract: PROBLEM TO BE SOLVED: To provide a fiber material capable of providing the ink supply property compatible with various inks and high speed printing as well as facilitating the ink ejection, and a liquid storing container having the same. SOLUTION: An ink tank 1 is provided with a PP fiber material (the sectioned part in the figure) 2 as a negative pressure generating member with respect to an ink-jet head for recording by ejecting a liquid over the substantially the entirety of the inside such that the liquid to be supplied to the ink-jet head is sustained by the PP fiber material 2 for storage. An atmosphere communication opening 3 is provided on the upper end of a tank housing. Moreover, an entangled PP fiber with the surface processed by a hydrophilic treatment is used as the PP fiber material 2.

公开(公告)号：JPH09151348A

公开(公告)日：1997-06-10

申请号：JP33436495

申请日：1995-11-30

Applicant: CANON KK

Inventor： YAMAMOTO MAYUMI ,  TAKIZAWA YOSHIHISA ,  SANADA MIKIO ,  SAITOU ERIKO

IPC: B41J2/21 ,  B41J2/01 ,  B41J2/175 ,  B41M5/00 ,  C09D11/00 ,  C09D11/322 ,  C09D11/326 ,  C09D11/328 ,  C09D11/38

Abstract: PROBLEM TO BE SOLVED: To provide an ink set using an ink capable of giving enough picture concentration, having a high homogeneity in the picture concentration, especially preventing bleedings in color pictures, giving clear and uniform pictures in high quality and capable of improving letter characteristics in a printed matter in recording on common paper. SOLUTION: In this ink set combining two or more different color inks used for recording a color pictures on a material to be recorded by an ink jet recording method, the ink comprises a color material and a liquid medium as essential components, contains an anionic or a cationic surfactant at least in one color ink and an amphoteric ionic compound in the other ink having a color different from that of the above ink.

公开(公告)号：JPH09136426A

公开(公告)日：1997-05-27

申请号：JP29843795

申请日：1995-11-16

Applicant: CANON KK

Inventor： MORITA OSAMU ,  IKETANI MASARU ,  SANADA MIKIO ,  MASUDA KAZUAKI ,  HINAMI ATSUSHI

IPC: B41J2/175

Abstract: PROBLEM TO BE SOLVED: To refill a cartridge with ink without breaking it by providing an ink injection port connected with an ink chamber and sealing members which are put into the ink injection port to seal the port and dropped in the ink chamber by pushing to lift the sealing. SOLUTION: A ball 7a which is fitted into the ink injection port 5 of an ink cartridge 1 with ink exhausted is dropped into an ink chamber 6 by pushing with a rod 8 to open the ink injection port 5. The ink injection tube 10 of a bellows-shaped ink packing container 9 is inserted into the opened ink injection port 5, and the container 9 is compressed by hand to inject ink 11 into the ink chamber 6. After that, into the opened ink injection port 5 is fitted a ball prepared separately with the rod 8 to seal the port 5. In this way, the cartridge 1 can be refilled with ink without being broken.

公开(公告)号：JPH09109547A

公开(公告)日：1997-04-28

申请号：JP29067995

申请日：1995-10-13

Applicant: CANON KK

Inventor： YAMAMOTO MAYUMI ,  TAKIZAWA YOSHIHISA ,  SANADA MIKIO ,  HATTORI YOSHIFUMI

IPC: B41J2/21 ,  B41J2/01 ,  B41J2/165 ,  B41M5/00 ,  C09D11/00 ,  C09D11/326 ,  C09D11/328 ,  C09D11/38 ,  C09D11/40

Abstract: PROBLEM TO BE SOLVED: To obtain a clear color image with high color density and a sharp edge, without line thickening even when two kinds of inks of different colors are printed one on another and without boundary extruding even when two kinds of inks of different colors are printed adjoiningly. SOLUTION: In a method for ink jet recording wherein a color image is recorded on a material to be recorded by using inks of at least two different colors by means of a method for ink jet recording system, the ink contains a dye, a liq. medium and a polymer substance as essential ingredients and has a viscosity of 1×10 to 1×10 Pa.s at 25 deg.C and a dye used for at least one ink among inks with at least two different colors is an anionic dye and a dye used for an ink with a different color from the ink is a cationic dye.

公开(公告)号：JPH0995637A

公开(公告)日：1997-04-08

申请号：JP27515595

申请日：1995-09-29

Applicant: CANON KK

Inventor： SAITOU ERIKO ,  YAMAMOTO MAYUMI ,  SANADA MIKIO ,  MAFUNE KUMIKO ,  NAGASHIMA SATOSHI

IPC: B41J2/01 ,  B41J2/175 ,  C09D11/00

Abstract: PROBLEM TO BE SOLVED: To obtain an ink for an ink jet, excellent in the clogging resistance at the tip of a nozzle and stability with time in the storing for a long period. SOLUTION: This ink is obtained by dissolving or dispersing (A) a coloring agent such as a carbon black and (B) urea and/or a urea derivative, and a compound of formula I [R1 , R2 are each amino, carboxyl, sulfone, OH, cyano, acetyl, H, -OCn H2n+1 (n is 1-8) or -NHCm H2m+1 (m is 1, 2)] (the optimum example; a compound of formula II) with (C) a liquid medium. Further, the content of the component C is 0.01-50wt.% (0.1-10wt.% is especially preferable), and the content of the component B is 0.01-20wt.% (preferably 0.1-15wt.%).

公开(公告)号：JPH0939262A

公开(公告)日：1997-02-10

申请号：JP19496395

申请日：1995-07-31

Applicant: CANON KK

Inventor： MASUDA KAZUAKI ,  MORITA OSAMU ,  IKETANI MASARU ,  HINAMI ATSUSHI ,  SANADA MIKIO

IPC: B41J2/175

Abstract: PROBLEM TO BE SOLVED: To provide simple and easy means without overflowing ink from an ink inlet at the time of refilling the ink conducted when the ink in a tank is wasted or without requiring a long time for filling in a head tank integral type cartridge for an ink jet type printer. SOLUTION: A second atmosphere communication port 209 is provided except an orifice 204 and an atmosphere communication port 203. The port 209 is shut OFF the atmosphere by a rubber cap 1 at the time of normally using a cartridge 200, and at the time of refilling the ink, the cap 1 is removed to communicate with the atmosphere, and the ink 20 is refilled in a tank 201 by a piston 11.

公开(公告)号：JPH0931381A

公开(公告)日：1997-02-04

申请号：JP20404295

申请日：1995-07-19

Applicant: CANON KK

Inventor： SANADA MIKIO ,  SAITOU ERIKO ,  YAMAMOTO MAYUMI ,  MAFUNE KUMIKO ,  NAGASHIMA SATOSHI

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

Abstract: PROBLEM TO BE SOLVED: To obtain a jet recording ink with which water-resistant images can be formed on plain paper and which has satisfactory anticlogging properties by using a specific dye which is a free acid and an amine composite compound having a specific group such as sulfonic acid. SOLUTION: A dye which is a free acid represented by formula I (wherein R1 to R4 each is carboxy, sulfunic acid, amino, etc.; X is a group represented by formula II, etc.; Y is a group represented by formula III, etc.; R7 to R10 each is carboxy, a group represented by formula IV, etc.; (n) is 1-5; and R5 and R6 each is carboxy, sulfonic acid, a 1-8C alkyl, etc.) and an amine compound (a) selected from among secondary and tertiary amines (derivatives thereof) and composites of these and having any of alkyls, carboxy, and sulfonic acid are dispersed and dissolved into a liquid medium to produce a jet recording ink. An example of the compound (a) is represented by formula V. The compound (a) preferably has its minimum solubility in the ink pH range of 4 to 10. The medium is preferably a mixture of water with a water-soluble organic solvent.

公开(公告)号：JPH0912950A

公开(公告)日：1997-01-14

申请号：JP18766195

申请日：1995-07-03

Applicant: CANON KK

Inventor： YAMAMOTO MAYUMI ,  SAITOU ERIKO ,  SANADA MIKIO ,  MAFUNE KUMIKO ,  NAGASHIMA SATOSHI

IPC: B41J2/01 ,  B41M5/00 ,  C09D11/00 ,  C09D11/02

Abstract: PROBLEM TO BE SOLVED: To obtain a recording liquid excellent in water resistance, stick restorability and delivery stability, and capable of giving prints with high color development ad high deepness, containing an anionic dye with anionic group salt-formed by an alkali metal ion. SOLUTION: This recording liquid comprises an organic solvent, water and a carboxyl-contg. anionic dye with the anionic group bearing the form of salts selected from an alkali metal (including Li and Na) salt, ammonium salt, organic amine salt and alkanolamine salt and the alkali metal salt, ammonium or organic amine salt and alkanolamine salt accounting for 30-100%, 0-50% and 0-60% of the the number of the salt-formed anionic groups, respectively. The anionic dye is pref. a dye of formula I Pc is a metallophthalocyanine nucleus; R1 to R3 are each, an alkyl, etc.; X is carbonyl, of formula II [Z is NR4 R5 , SR6 (R4 to R6 are each H, an aralkyl, etc.), etc.], etc.; G is a COSH and/or COOH substituted colorless organic group; (t+q) is 3-4}.