EP0594945B1 - Particules de toner fluorocarbonées lubrifiées pour imprimante - Google Patents

Particules de toner fluorocarbonées lubrifiées pour imprimante Download PDF

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Publication number
EP0594945B1
EP0594945B1 EP19930110126 EP93110126A EP0594945B1 EP 0594945 B1 EP0594945 B1 EP 0594945B1 EP 19930110126 EP19930110126 EP 19930110126 EP 93110126 A EP93110126 A EP 93110126A EP 0594945 B1 EP0594945 B1 EP 0594945B1
Authority
EP
European Patent Office
Prior art keywords
toner particles
toner
solvent
fluorocarbon
oil
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19930110126
Other languages
German (de)
English (en)
Other versions
EP0594945A1 (fr
Inventor
John H. Stewart
Dennis P. Davidson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HP Inc
Original Assignee
Hewlett Packard Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hewlett Packard Co filed Critical Hewlett Packard Co
Publication of EP0594945A1 publication Critical patent/EP0594945A1/fr
Application granted granted Critical
Publication of EP0594945B1 publication Critical patent/EP0594945B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/0802—Preparation methods
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/0825—Developers with toner particles characterised by their structure; characterised by non-homogenuous distribution of components
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/087—Binders for toner particles
    • G03G9/08742—Binders for toner particles comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • G03G9/08759—Polyethers
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/097—Plasticisers; Charge controlling agents
    • G03G9/09733—Organic compounds
    • G03G9/09766—Organic compounds comprising fluorine

Definitions

  • JP-1091141 relates to a toner for developing an electrostatic latent image according to which the toner includes a binding resin powder and fine powder particles having a diameter smaller than that of the powder of the binding resin.
  • the toner includes a binding resin powder and fine powder particles having a diameter smaller than that of the powder of the binding resin.
  • fluorocarbon oil and solvent There is no mention concerning the amounts of fluorocarbon oil and solvent and as to the use of a solvent in combination with the fluorocarbon oil.
  • the process further employs a solvent for the fluorocarbon oil.
  • the chosen solvent must not attack the toner particles, and must exhibit a low boiling point.
  • a preferred solvent is perfluoro alkane, a non-polar solvent that does not attack polar surfaces of toner particles and is a good solvent for fluorocarbon oils.
  • the 3M Company, Commercial Chemicals Division, 223-6S-04 3M Center, Saint Paul, Minnesota 55144-1000 markets a perfluoro alkane solvent called "Fluorinert" which was employed in the development of the invention.
  • the preferred solvent is Fluorinert (FC-72) which is a C8 perfluoro alkane.
  • the mechanism used to carry out the invention was a "Rotavapor" system such as is shown in the Fig.
  • a mixture of toner particles, fluorocarbon lubricant and a perfluoro alkane solvent was emplaced in a flask 10 that was attached to a vacuum/drive system 12.
  • Flask 10 was immersed in a heating bath 14 that enabled an elevation of the temperature of the mixture contained in flask 10. The elevated temperature is sufficiently high to enhance volatilization of the solvent, but must not exceed the melting temperature of the toner particles.
  • Flask 10 is rotated by drive system 12 while simultaneously, a vacuum is applied to flask 10. During operation, the elevated temperature of flask 10 causes volatilization of the perfluoro alkane solvent, which solvent enters the cooling system 16 via tube 18. Within cooling system 16, the solvent condenses and precipitates into receiving flask 20.
  • a magnetic ink character recognition (MICR) toner e.g. a MICR toner that is a styrene-based monocomponent-type toner, obtained from the Canon Corporation, Japan was coated with perfluoro poly propoxy-methoxy oil (Fomblin Y). The coating was accomplished by adding either 15 or 300 micro liters of Fomblin Y to 200 mL of perfluoro alkane solvent (3M FC72). One hundred grams of the monocomponent toner was added to a 500 mL round bottom flask 10 (see Fig.). A mixture of the solvent and fluorocarbon lubricant was added to the flask.
  • MICR magnetic ink character recognition
  • the fluorocarbon oil was found to be stable and nonvolatile.
  • the toner operated successfully in the printer and the perfluoro alkane solvent used did not degrade the toner.
  • the print quality was equal to noncoated toner particles.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Developing Agents For Electrophotography (AREA)

Claims (4)

  1. Un procédé pour appliquer sur des particules de toner polaire à monocomposant, à base de styrène, un mince revêtement d'une huile fluorocarbonée, ces particules de toner étant appropriées pour être utilisées dans une imprimante électrostatique, le procédé comportant les étapes:
    a) combiner lesdites particules de toner avec un mélange d'une huile fluorocarbonée et d'un solvant non-polaire du type perfluoro-alkane, ladite huile fluorocarbonée et ledit solvant du type perfluoro-alkane étant présent dans ledit mélange selon un rapport de l'huile fluorocarbonée au solvant se situant dans une gamme de 15 à 300 microlitres de ladite huile pour 100 ml dudit solvant, le tout par 100 grammes de particules de toner;
    b) de chauffer la combinaison de mélange de l'étape (a) à une température élevée dans un environnement sous vide, cette température étant inférieure à la température de fusion desdites particules de toner; et
    c) d'agiter ledit mélange pendant ladite étape de chauffage afin de réaliser sur lesdites particules de toner un revêtement au moyen de ladite huile fluorocarbonée, tandis que ledit chauffage provoque l'évaporation dudit solvant du type perfluoro-alkane.
  2. Le procédé tel que spécifié dans la revendication 1, dans lequel ladite huile fluorocarbonée est une huile perfluoro-polypropoxy-méthoxy.
  3. Le procédé tel que spécifié dans la revendication 1, dans lequel ledit toner est un toner de reconnaissance de caractères magnétiques.
  4. Le procédé tel que spécifié dans la revendication 1, dans lequel ledit solvant de type perfluoro-alkane est un perfluoro-alkane en C8.
EP19930110126 1992-10-21 1993-06-24 Particules de toner fluorocarbonées lubrifiées pour imprimante Expired - Lifetime EP0594945B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US96432692A 1992-10-21 1992-10-21
US964326 1992-10-21

Publications (2)

Publication Number Publication Date
EP0594945A1 EP0594945A1 (fr) 1994-05-04
EP0594945B1 true EP0594945B1 (fr) 1998-12-16

Family

ID=25508417

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930110126 Expired - Lifetime EP0594945B1 (fr) 1992-10-21 1993-06-24 Particules de toner fluorocarbonées lubrifiées pour imprimante

Country Status (3)

Country Link
EP (1) EP0594945B1 (fr)
JP (1) JP3481280B2 (fr)
DE (1) DE69322596T2 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6838114B2 (en) 2002-05-24 2005-01-04 Micron Technology, Inc. Methods for controlling gas pulsing in processes for depositing materials onto micro-device workpieces
US6955725B2 (en) 2002-08-15 2005-10-18 Micron Technology, Inc. Reactors with isolated gas connectors and methods for depositing materials onto micro-device workpieces
US6926775B2 (en) 2003-02-11 2005-08-09 Micron Technology, Inc. Reactors with isolated gas connectors and methods for depositing materials onto micro-device workpieces
US7581511B2 (en) 2003-10-10 2009-09-01 Micron Technology, Inc. Apparatus and methods for manufacturing microfeatures on workpieces using plasma vapor processes
US7584942B2 (en) 2004-03-31 2009-09-08 Micron Technology, Inc. Ampoules for producing a reaction gas and systems for depositing materials onto microfeature workpieces in reaction chambers
US8133554B2 (en) 2004-05-06 2012-03-13 Micron Technology, Inc. Methods for depositing material onto microfeature workpieces in reaction chambers and systems for depositing materials onto microfeature workpieces
JP2006285198A (ja) * 2005-03-09 2006-10-19 Hosokawa Funtai Gijutsu Kenkyusho:Kk トナー粒子、トナー粒子の製造装置及び製造方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53124428A (en) * 1977-04-07 1978-10-30 Mita Industrial Co Ltd Developing agent for use in electrostatic image
JPS598821B2 (ja) * 1978-10-09 1984-02-27 コニカ株式会社 静電荷像現像用磁性トナ−
JPS5716460A (en) * 1980-07-02 1982-01-27 Sakata Shokai Ltd Preparation of powdery toner
US4369240A (en) * 1980-11-07 1983-01-18 E. I. Du Pont De Nemours And Company Element having images developed with dry nonelectroscopic toners
US4960677A (en) * 1987-08-14 1990-10-02 E. I. Du Pont De Nemours And Company Dry nonelectroscopic toners surface coated with organofunctional substituted fluorocarbon compounds
JPS6491141A (en) * 1987-10-02 1989-04-10 Konishiroku Photo Ind Electrostatic image developing toner
JPH0277759A (ja) * 1988-09-13 1990-03-16 Seiko Epson Corp トナーの製造方法

Also Published As

Publication number Publication date
JPH06202372A (ja) 1994-07-22
DE69322596D1 (de) 1999-01-28
EP0594945A1 (fr) 1994-05-04
JP3481280B2 (ja) 2003-12-22
DE69322596T2 (de) 1999-07-15

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