公开(公告)号：JP2002338864A

公开(公告)日：2002-11-27

申请号：JP2002061997

申请日：2002-03-07

Applicant: CANON KK

Inventor： TAKAIDE FUMI ,  SUGA YUKO ,  KASHIWAZAKI AKIO

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

Abstract: PROBLEM TO BE SOLVED: To provide a water-base pigment ink which gives good print density and print quality on various kinds of plain paper and is excellent in reliability. SOLUTION: This water-base pigment ink contains a pigment, an at least one water-soluble organic solvent selected from among diol monoalkyl ethers, triol monoalkyl ethers, and triol dialkyl ethers, and a dispersant which has a hydrophobic part and a hydrophilic part consisting of a polymer containing 3-25 mol% long-chain nonionic-group-containing monomer units and 5-60 mol% α,β-ethylenically unsaturated carboxylic acid units.

公开(公告)号：JPH09183934A

公开(公告)日：1997-07-15

申请号：JP1245797

申请日：1997-01-27

Applicant: CANON KK

Inventor： SHIMOMURA MASAKO ,  SUGA YUKO

IPC: B41J2/01 ,  B41M5/00 ,  C09D11/00 ,  C09D11/02 ,  C09D11/033 ,  C09D11/324 ,  C09D11/326 ,  C09D11/38

Abstract: PROBLEM TO BE SOLVED: To provide an ink jet recording fluid excellent in the fastness of a print always capable of stable delivery even when driving condition are fluctuated and even when it is used for a long period of time, and excellent in long- term shelf stability. SOLUTION: Neutral or basic carbon black is used in combination with at least one water-soluble resin selected from the group consisting of acrylic acid/butyl acrylate methyl methacrylate copolymers and styrene/maleic ester/ maleic anhydride copolymer in an aq. liq. medium, provided that the carbon black to water-soluble resin ratio is in the range of 3:1 to 10:1 by weight.

公开(公告)号：JPH0790208A

公开(公告)日：1995-04-04

申请号：JP23458293

申请日：1993-09-21

Applicant: CANON KK

Inventor： KASHIWAZAKI AKIO ,  TAKAIDE FUMI ,  NOGUCHI HIROMICHI ,  SUGA YUKO

IPC: B41J2/01 ,  B41M5/00 ,  C09D11/00 ,  C09D11/02 ,  C09D11/023 ,  C09D11/033 ,  C09D11/037 ,  C09D11/322 ,  C09D11/324 ,  C09D11/38

Abstract: PURPOSE:To obtain the recording ink having excellent abrasion properties on a material to be printed, mechanical fastness, etc., by adding an adduct compound of a polyisocyanate with an amino-alcohol to water-based pigment ink comprising water, a water-soluble organic solvent and a pigment dispersion. CONSTITUTION:The water-based pigment ink is obtained by blending water- based pigment ink comprising (A) water, (B) a water-soluble organic solvent (e.g. ethylene glycol, hexylene glycol or ethanol) and (C) a pigment dispersion composed of pigment (preferably 1-20%, more preferably 2-12% by weight ratio) and a dispersant (e.g. styrene or vinylnaphthalene) with 0.5-15wt.%, preferably 3-10wt.% in ink of an adduct of a polyisocyanate with an amino-alcohol of preferably formula I, formula II or formula III (R is polyisocyanate residue; R1 to R4 are amino-alcohol residue) (e.g. compound of formula IV).

公开(公告)号：JPH06322306A

公开(公告)日：1994-11-22

申请号：JP10823393

申请日：1993-05-10

Applicant: CANON KK

Inventor： TAKAIDE FUMI ,  SUGA YUKO ,  KASHIWAZAKI AKIO

IPC: B41J2/01 ,  B41J2/17 ,  B41J2/175 ,  B41M5/00 ,  C09D11/00 ,  C09D11/023 ,  C09D11/033 ,  C09D11/037 ,  C09D11/10 ,  C09D11/106 ,  C09D11/107 ,  C09D11/108 ,  C09D11/322 ,  C09D11/326 ,  C09D11/38

Abstract: PURPOSE:To provide a water-dispersed pigment ink containing a specific water- soluble organic solvent and a dispersing agent, having excellent printed image fastness, enabling stable ejection over a long period and giving printed image having excellent quality and density even on a plain paper. CONSTITUTION:The objective ink contains (A) a pigment, (B) a dispersing agent consisting of a polymer having a hydrophilic part and a hydrophobic part and containing 3-25mol% of at least one kind of monomer having long chain nonionic group and expressed by formula I; CH2=C(R)-COO-(CH2CH2O)m-H, formula II;CH2=C(R)-COO-(CH2CH2O)n-(CH2)lH, formula III; CH2=C(R)- COO-(CH2CH2O)p-phenyl-(CH2)qH (R is H or CH3; (m) and (n) are 2-24; (l) and (p) are 1-12; (q) is 0-16) and 5-60mol% of an alpha, beta-ethylenic unsaturated carboxylic acid as the monomers constituting the hydrophilic part, (C) at least one kind of water-soluble organic solvent selected from monoalkyl ether of diol, monoalkyl ether of triol and dialkyl ether of triol and (D) water.

公开(公告)号：JPH06306318A

公开(公告)日：1994-11-01

申请号：JP9952893

申请日：1993-04-26

Applicant: CANON KK

Inventor： KASHIWAZAKI AKIO ,  SUGA YUKO ,  TAKAIDE FUMI

IPC: B41J2/01 ,  B41J2/165 ,  B41J2/17 ,  B41J2/175 ,  B41M5/00 ,  C09D11/00 ,  C09D11/023 ,  C09D11/033 ,  C09D11/037 ,  C09D11/10 ,  C09D11/106 ,  C09D11/107 ,  C09D11/108 ,  C09D11/322 ,  C09D11/326 ,  C09D11/38

Abstract: PURPOSE:To obtain the title ink with which high-density characters of good quality are recorded even on various plain papers and which does not cause nozzle clogging and has excellent long-term storage stability by using a specific monomer to produce a dispersant. CONSTITUTION:The ink comprises a pigment, a dispersant, a water-soluble organic solvent, and water, the dispersant being a polymer having a hydrophilic part and a hydrophobic part containing 5-70mol% units derived from at least one monomer selected from ones represented by the formulae I and II wherein R1 is H or CH3 and R2 is a 1-5C alkyl.

公开(公告)号：JPH06279718A

公开(公告)日：1994-10-04

申请号：JP6847193

申请日：1993-03-26

Applicant: CANON KK

Inventor： SUGA YUKO ,  TAKAIDE FUMI ,  KASHIWAZAKI AKIO ,  SHIROTA KATSUHIRO ,  NOGUCHI HIROMICHI

IPC: B41J2/01 ,  B41J2/165 ,  B41J2/175 ,  B41M5/00 ,  C09D11/00 ,  C09D11/023 ,  C09D11/033 ,  C09D11/037 ,  C09D11/10 ,  C09D11/102 ,  C09D11/322 ,  C09D11/328

Abstract: PURPOSE:To obtain the fluid which can embody recording excellent in the quality of print and with a high fixability, by using a specific water-soluble urethane oligomer as the constituent of a water-base recording fluid. CONSTITUTION:The fluid comprises water, a water-soluble organic solvent, a coloring agent and a water-soluble urethane oligomer which comprises a water-soluble polyurethane formed from a hydrophobic diol based on a acetylene glycol and represented by formula I, a carboxylated hydrophilic diol having two hydroxyl groups and one or two carboxyl groups in the molecule, and a diisocyanate. In formula I, R1 and R2 are each CH3-CH2- or a group of formula II, R3 is [CH2CH2O]n-H, and R4 is [CH2CH2O]m-H (wherein n+m=N and 3

公开(公告)号：JPH06136309A

公开(公告)日：1994-05-17

申请号：JP29037192

申请日：1992-10-28

Applicant: CANON KK

Inventor： SUGA YUKO ,  MORIYAMA JIRO ,  INUI TOSHIJI ,  KATAYAMA MASATO

IPC: B41J2/21 ,  B41J2/01 ,  B41J2/175 ,  B41M5/00 ,  C09D11/00 ,  C09D11/02 ,  C09D11/023 ,  C09D11/033 ,  C09D11/037 ,  C09D11/322 ,  C09D11/324 ,  C09D11/326 ,  C09D11/328 ,  C09D11/38

Abstract: PURPOSE:To provide an ink jet recording method whereby a sufficient image density can be obtained even in plain paper recording, the uniformity of an image density is high, the bleeding in especially a color image can be prevented, high quality of black character can be attained, and the simplification of a recorder is possible and to obtain an ink set and a recorder used therefor. CONSTITUTION:A process for recording a color image by using color inks which are at least Yellow, Magenta and Cyan color inks and a black ink and delivering these inks to a substrate to form a color image, wherein each of the color inks contains a penetrating surfactant and/or a penetrating solvent, and the black ink contains a pigment as a colorant, is provided.

公开(公告)号：JPH0692010A

公开(公告)日：1994-04-05

申请号：JP24224892

申请日：1992-09-10

Applicant: CANON KK

Inventor： KASHIWAZAKI AKIO ,  TAKAIDE FUMI ,  SUGA YUKO

IPC: B41J2/01 ,  B41M5/00

Abstract: PURPOSE:To obtain recording images showing good printing quality and superior fastness to any kind of general papers, by applying or spraying a solution containing fine particles or binder polymers to a recording medium prior to the inkjet recording. CONSTITUTION:By the inkjet recording method, a recording liquid containing pigments, a water-soluble solvent and water is discharged in drops from fine openings, thereby to perform recording. In this case, before recording is started, a solution containing fine particles, or fine particles and binder polymers is applied or discharged/jetted to a recording medium. That is, a liquid containing fine particles or, fine particles and binder polymers is jetted from a sub head 1b to a recording paper 2. Then, the recording liquid is jetted from a main head 1a a predetermined time later, thereby to perform recording. The heads 1a and 1b having a common part 3 are set beforehand so that the ink drops jetted out from the main head 1a agree with landing points of the liquid drops from the sub head 1b.

公开(公告)号：JPH05148441A

公开(公告)日：1993-06-15

申请号：JP31447091

申请日：1991-11-28

Applicant: CANON KK

Inventor： TAKAIDE FUMI ,  SUGA YUKO ,  SAITO EMI

IPC: B41M5/00 ,  C09D11/00 ,  C09D11/02 ,  C09D11/023 ,  C09D11/033 ,  C09D11/037 ,  C09D11/322 ,  C09D11/326 ,  C09D11/328 ,  C09D11/36 ,  C09D11/38 ,  C09D11/40

Abstract: PURPOSE:To obtain a recording liquid containing a pigment and a dye each having specific structures, water soluble resin, water soluble organic solvent and water, being Magenta excellent in water resistance and light stability of recording image and vivid in color tone and good in discharge stability. CONSTITUTION:The objective recording liquid contains (A) a pigment of formula I (R is H, methyl or Cl), (B) a dye of formula II (Y is H, methyl, methoxy, etc.; X is acetyl, benzoyl, paratoluenesulfonyl, etc. ; M , M and M are alkali metal, ammonium or amines), (C) water soluble resin (preferably styrene-acrylic acid copolymer), (D) water soluble organic solvent and (E) water (preferably ion exchange water) and being (15:1) to (30:1) in weight ratio of the component A to the component C. The component D is preferably used in combination of triol such as glycerin or polyhydric alcohol such as triethylene glycol and ethanol or isopropylene glycol.

公开(公告)号：JPH05148436A

公开(公告)日：1993-06-15

申请号：JP31089491

申请日：1991-11-26

Applicant: CANON KK

Inventor： SUGA YUKO ,  SAITO EMI ,  TAKAIDE FUMI

IPC: B41M5/00 ,  B41J2/01 ,  C09D11/00 ,  C09D11/02 ,  C09D11/023 ,  C09D11/033 ,  C09D11/037 ,  C09D11/322

Abstract: PURPOSE:To obtain the subject recording liquid, always and stably dischargeable and excellent in preservation stability for a long period without solidifying the ink at the head tip by dispersing a specific pigment and a water-soluble resin in the coexistence of an aqueous medium and then adding the aqueous medium to the resultant dispersion. CONSTITUTION:The objective recording liquid is obtained by dispersing (A) a quinacridone-based compound pigment expressed by the formula (R is H, CH3 or Cl) and (B) a water-soluble resin (preferably a styrene-acrylic acid copolymer, etc.) at (15:1) to (30:1) weight ratio in the coexistence of (C) an aqueous medium and then adding the component (C) to the resultant pigment dispersion. The obtained recording liquid contains the components (A) to (C). A mixed solvent of ion exchange water with a water-soluble organic solvent is preferred as the component (C). Triols such as glycerol are preferred as the water-soluble organic solvent. Ethanol or isopropyl alcohol in an amount of >=3% is preferably used in combination from the viewpoint of discharge stability of the recording liquid.