公开(公告)号：JPH08333538A

公开(公告)日：1996-12-17

申请号：JP6166996

申请日：1996-02-26

Applicant: CANON KK

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

IPC: B41J2/01 ,  B41J2/05 ,  B41J2/14 ,  B41J2/175 ,  B41M5/00 ,  C09D11/00 ,  C09D11/322 ,  C09D11/328 ,  C09D11/38

Abstract: PURPOSE: To obtain an ink containing an amphoteric polymer having both an anionic group and a cationic group, and capable of giving a water-resistant picture image having a high quality to plain paper in a high picture image concentration without bleeding. CONSTITUTION: This ink contains a coloring agent, a liquid medium for dissolving or dispersing the coloring agent, and an amphoteric polymer having both an anionic group (preferably a carboxyl group or a sulfonyl group) and a cationic group (preferably either of an amino group, an imino group, a pyrrolidone ring and an imidazole ring). The polymer is the copolymer of a monomer having an anionic group in the molecule (e.g. acrylic acid) with a monomer containing a cationic group in the molecule (e.g. 2-vinyl-pyrrolidone), and has an isoelectric point in a pH range of 3-10 and a weight-average mol.wt. of 1,000-1,000,000, concretely preferably allylamine-maleic acid copolymer, etc.

公开(公告)号：JPH07150086A

公开(公告)日：1995-06-13

申请号：JP29820193

申请日：1993-11-29

Applicant: CANON KK

Inventor： TERAOKA HISASHI ,  TAKIZAWA YOSHIHISA ,  YAMAMOTO MAYUMI ,  NAGASHIMA SATOSHI ,  SATO SHINICHI ,  SAITOU ERIKO ,  HATTORI YOSHIFUMI ,  MURAI KEIICHI ,  MAFUNE KUMIKO ,  YAMAMOTO TAKAO ,  SANADA MIKIO ,  KATSURAGI TAKASHI

IPC: B41J2/01 ,  B41J2/175 ,  B41M5/00 ,  C09D11/00 ,  C09D11/326 ,  C09D11/328 ,  C09D11/38 ,  C09D11/40

Abstract: PURPOSE:To obtain ink having excellent dissolution stability of dye and water resistance, providing a high-quality colored picture image, comprising a dye containing at least one ammonium ion in a molecule and an organic amine. CONSTITUTION:This ink comprises (A) a dye containing at least one ammonium ion as a counter ion in a molecule, especially preferably compounds of formula I and II, etc., (B) an organic amine, preferably a primary to a tertiary amine such as monoethanolamine or diethanolamine, preferably further (C) a surfactant, (D) a nitrogen-containing compound, (E) at least one compound of a hydroxide and an alkali metal salt and (F) a sulfate. The amount of the component A is 0.2-10%, preferably 0.5.-8.0% based on the whole amount of the ink. The amount of the component B is 0.01-10%, preferably 0.1-5.0% based on the whole amount of the ink.

公开(公告)号：JP2002144596A

公开(公告)日：2002-05-21

申请号：JP2000342131

申请日：2000-11-09

Applicant: CANON KK

Inventor： KOTAKI YASUO ,  SANADA MIKIO ,  HAYASHI KOKI ,  SUGAMA SADAYUKI

IPC: B41J2/175

Abstract: PROBLEM TO BE SOLVED: To fill an ink holding member with ink more surely, easily and quickly. SOLUTION: Under a state where an ink tank 200 is held on a tank holding stage 101 and an ink holding member 201 subjected to hydrophilic treatment and contained in the ink tank 200 is opened to the atmosphere, a specified quantity of ink is injected from an ink supply mechanism 104 into the ink tank 200 and the tank holding stage 101 is reciprocated by driving a stage moving mechanism 102 to collide against stopper members 103 and 121 thus imparting a specified inertial force to the ink injected into the ink tank 200.

公开(公告)号：JP2002144595A

公开(公告)日：2002-05-21

申请号：JP2000340646

申请日：2000-11-08

Applicant: CANON KK

Inventor： SANADA MIKIO ,  HAYASHI KOKI ,  SUGAMA SADAYUKI

IPC: B41J2/175

Abstract: PROBLEM TO BE SOLVED: To realize a liquid ejection recorder in which ink is absorbed quickly into an absorber contained in a tank part on a carriage at the time of supplementing ink and a brilliant ink supply operation is ensured. SOLUTION: A head cartridge comprising a recording head for ejecting ink and a tank section 9 for holding ink being supplied to the recording head is carried on a carriage reciprocating in the widthwise direction of a recording sheet. A negative pressure generating member 10 composed of fibrous material is contained in the tank section 9 wherein the surface of fibers composing the negative pressure generating member 10 has been rendered lyophilic. When the carriage moves to a specified position and ink in a large tank 6 is supplied through a supply tube 7 to the negative pressure generating member 10, ink is absorbed quickly into the negative pressure generating member 10 and the operation for supplying ink into the tank section 9 is completed in a short time.

公开(公告)号：JP2001220457A

公开(公告)日：2001-08-14

申请号：JP2000367479

申请日：2000-12-01

Applicant: CANON KK

Inventor： SANADA MIKIO ,  HAYASHI KOKI ,  SUGAMA SADAYUKI

IPC: C08J7/02 ,  C08J7/00 ,  C09K3/18 ,  D06M15/643

Abstract: PROBLEM TO BE SOLVED: To provide a method for modifying the surface of an article, by which a uniform and persistent modification treatment can affectively be applied to the prescribed surface portion of the article, to provide a surface-treating liquid used for the method, and to provide the article having a modified surface treated by the method. SOLUTION: This method for modifying the surface of an article, is characterized by orienting the second portion of a polymer toward the modifying surface on the modifying surface constituting at least one portion of the surface of the prescribed article and further orienting the first portion of the polymer toward a side different from the modifying surface. The polymer has the first portion having functional groups and the second portion which has groups having an interfacial energy that is different from the interfacial energy of the functional groups and is the nearly same as the surface energy of the modifying surface, and is different from the material for constituting the modifying surface.

公开(公告)号：JP2001152060A

公开(公告)日：2001-06-05

申请号：JP2000272934

申请日：2000-09-08

Applicant: CANON KK

Inventor： SANADA MIKIO ,  MISHINA SHINYA ,  OSUMI KOICHI ,  SATO SHINICHI

IPC: B41J2/01 ,  B41M5/00 ,  C09C1/56 ,  C09C3/06 ,  C09C3/10 ,  C09D11/00

Abstract: PROBLEM TO BE SOLVED: To provide a water-color ink or the like which improves the concentrations of images and the color development of the ink, while maintaining the image fastness of formed images, such as light resistance. SOLUTION: This water-color ink containing a capsulated coloring material prepared by coating a water-insoluble coloring material with an organic polymer, is characterized in that the content of the organic polymer in the capsulated coloring material on the basis of the water-insoluble coloring material is >=1 wt.% and

公开(公告)号：JP2000198955A

公开(公告)日：2000-07-18

申请号：JP6827299

申请日：1999-03-15

Applicant: CANON KK

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

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

Abstract: PROBLEM TO BE SOLVED: To provide a black ink which alleviates the influence of a recording medium on image qualities and can stably give a high-quality image. SOLUTION: This ink comprises at least one salt selected from among (M1)2SO4, CH3COO(M1), Ph-COO(M1), (M1)NO3, (M1)C1, (M1)Br, (Mi)I, (M1)2SO3, and (M1)2CO3 and a self-dispersible carbon black. In the formulae, M1 is an alkali metal, ammonium, or an organoammonium, and Ph is phenyl.

公开(公告)号：JP2000168106A

公开(公告)日：2000-06-20

申请号：JP34693698

申请日：1998-12-07

Applicant: CANON KK

Inventor： SANADA MIKIO ,  KOTAKI YASUO

IPC: B41J2/01 ,  B41J2/125 ,  B41J2/175 ,  B41M5/00 ,  B41M5/50 ,  B41M5/52

Abstract: PROBLEM TO BE SOLVED: To provide a method for accurately testing the ejection state of a recording processing liquid in an ink-jet recording apparatus for continuously ejecting an ink and colorless transparent recording processing liquid, and mixing them on a recording medium for fixing the ink on the recording medium, capable of improving the water resistance of the ink and capable of preventing blurring, and an ejection test film used in the method. SOLUTION: An ejection test film obtained by forming a recording processing liquid accepting layer with 8 pigment compound to be discolored according to the pH change such as bromo thymol blue dispersed in a binder component such as a resin formed On a film base material is used for judgment of the ejection state by ejecting a recording processing liquid onto the film for discoloration so that the impact position of the recording processing liquid is confirmed by visual observation.

公开(公告)号：JP2000080315A

公开(公告)日：2000-03-21

申请号：JP17674099

申请日：1999-06-23

Applicant: CANON KK

Inventor： TAKADA YOICHI ,  TAKIZAWA YOSHIHISA ,  MISHINA SHINYA ,  SANADA MIKIO ,  OSUMI KOICHI ,  TERAOKA HISASHI

IPC: B41J2/01 ,  B41J2/175 ,  B41M5/00 ,  C09C1/56 ,  C09D11/00 ,  C09D11/322 ,  C09D11/324 ,  C09D11/326 ,  C09D11/38

Abstract: PROBLEM TO BE SOLVED: To obtain a pigment ink which can form a picture excellent in fastness such as water-resistance, light resistance, etc., and in letter properties, and has the higher jet efficiency when applied to recording of an ink jet by incorporating a self-dispersing carbon black, an aqueous medium and a silicon compound. SOLUTION: As a coloring material, a self-dispersing type carbon in which at least one hydrophilic group is bound on a surface of carbon black through other atomic group is used. Both anionic and cationic group are used as the hydrophilic one. The anionic hydrophilic group contains, for example, -COOM, -SO3M, -PO3HM (wherein M is H, an alkaline metal, ammonium or the like) or the like. The cationic hydrophilic group contains -SO2N+H3, -N+R3, a group of the formula (wherein R is a 1-12C alkyl, a phenyl or a naphthyl) or the like. The above other atomic group contains, for example, a 1-12C alkylene, a phenylene, a naphthylene or the like. As a silicon compound, a silicon surfactant is preferable, for example.

公开(公告)号：JPH1161637A

公开(公告)日：1999-03-05

申请号：JP22164897

申请日：1997-08-18

Applicant: CANON KK

Inventor： YAMAMOTO HAJIME ,  HAYASHI KOKI ,  SHIMIZU EIICHIRO ,  HINAMI ATSUSHI ,  HAMAZAKI YUJI ,  TSUKUDA KEIICHIRO ,  TAKIZAWA YOSHIHISA ,  SANADA MIKIO

IPC: B41J2/175 ,  D06M11/38 ,  D06M13/02 ,  D06M13/10 ,  D06M13/148 ,  D06M13/17 ,  D06M13/244 ,  D06M13/282 ,  D06M13/292 ,  D06M15/53

Abstract: PROBLEM TO BE SOLVED: To inexpensively obtain a fiber material that is useful for producing an ink-absorber of high performance with exclusion of influence of the finishing oil as a contaminant by contact treatment of fibers produced by melt-spinning a thermoplastic resin with an ethylene oxide-added glycol. SOLUTION: A thermoplastic resin at least one selected from polyethylene, polypropylene, ethylene-propylene copolymer, poly(methylpentene) and ethylene- olefin copolymers are melt-spurn to produce a fiber material for a liquid- contacting member with an ink for ink jetting. At this time, the spun yarns in a plurality of cans 136 are taken out and brought into contact with a glycol to which ethylene oxide is added (as ethylene oxide adduct on 2,4,7,9- tetramethyl-5-decine-4,7-diol) using a spray 180 for their treatment to give the objective fiber material. In a preferred embodiment, this fiber material is used to produce the objective ink-absorber.