FR2369600A1 - Particules de marquage electroscopiques - Google Patents

Particules de marquage electroscopiques

Info

Publication number
FR2369600A1
FR2369600A1 FR7732627A FR7732627A FR2369600A1 FR 2369600 A1 FR2369600 A1 FR 2369600A1 FR 7732627 A FR7732627 A FR 7732627A FR 7732627 A FR7732627 A FR 7732627A FR 2369600 A1 FR2369600 A1 FR 2369600A1
Authority
FR
France
Prior art keywords
hydrophobic silica
silica particles
enveloped
outer layer
electroscopic marking
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.)
Withdrawn
Application number
FR7732627A
Other languages
English (en)
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.)
AUSTRALIA RES LAB
Original Assignee
AUSTRALIA RES LAB
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 AUSTRALIA RES LAB filed Critical AUSTRALIA RES LAB
Publication of FR2369600A1 publication Critical patent/FR2369600A1/fr
Withdrawn legal-status Critical Current

Links

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
    • G03G9/093—Encapsulated toner particles
    • G03G9/09307—Encapsulated toner particles specified by the shell material
    • G03G9/09342—Inorganic compounds
    • 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
    • G03G9/09—Colouring agents for toner particles
    • G03G9/0926—Colouring agents for toner particles characterised by physical or chemical properties
    • 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
    • G03G9/093—Encapsulated toner particles
    • G03G9/0935—Encapsulated toner particles specified by the core material
    • G03G9/09357—Macromolecular compounds
    • G03G9/09371—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • 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
    • G03G9/093—Encapsulated toner particles
    • G03G9/0935—Encapsulated toner particles specified by the core material
    • G03G9/09378—Non-macromolecular organic compounds
    • 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
    • G03G9/093—Encapsulated toner particles
    • G03G9/0935—Encapsulated toner particles specified by the core material
    • G03G9/09385—Inorganic compounds
    • 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
    • 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
    • G03G9/09775—Organic compounds containing atoms other than carbon, hydrogen or oxygen

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Dry Development In Electrophotography (AREA)

Abstract

L'invention concerne des particules de marquage électroscopiques comprenant une phase aqueuse intérieure contenant une matière colorante et enveloppée d'une couche extérieure de particules de silice hydrophobe. Selon l'invention on dissout dans de l'eau un liant et éventuellement un colorant solubles dans l'eau, puis on disperse dans cette solution de la magnétite de qualité pigment et éventuellement un autre pigment et on mélange rigoureusement avec des particules de silice hydrophobe, pour former une phase intérieure aqueuse contenant la matière colorante et enveloppée d'une couche extérieure de particules de silice hydrophobe. Applications au développement d'images électrostatiques latentes contenues sur la surface d'élément d'enregistrement diélectrique ou photoconducteur.
FR7732627A 1976-10-28 1977-10-28 Particules de marquage electroscopiques Withdrawn FR2369600A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU791276 1976-10-28

Publications (1)

Publication Number Publication Date
FR2369600A1 true FR2369600A1 (fr) 1978-05-26

Family

ID=3698582

Family Applications (2)

Application Number Title Priority Date Filing Date
FR7732626A Granted FR2369598A1 (fr) 1976-10-28 1977-10-28 Revelateurs electroscopiques
FR7732627A Withdrawn FR2369600A1 (fr) 1976-10-28 1977-10-28 Particules de marquage electroscopiques

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR7732626A Granted FR2369598A1 (fr) 1976-10-28 1977-10-28 Revelateurs electroscopiques

Country Status (5)

Country Link
JP (2) JPS5355127A (fr)
AU (1) AU506742B2 (fr)
DE (2) DE2747725A1 (fr)
FR (2) FR2369598A1 (fr)
GB (1) GB1594023A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1122460A (fr) * 1977-05-18 1982-04-27 James W. Consaul Tireuse electrographique comprenant une poudre non aqueuse contenant un liquide
US4749638A (en) * 1985-05-08 1988-06-07 Kao Corporation Electrophotographic toner composition
JPH049961A (ja) * 1990-04-27 1992-01-14 Matsushita Electric Ind Co Ltd 静電荷像現像用トナーおよび記録装置
DE4418842A1 (de) * 1994-05-30 1995-12-07 Hoechst Ag Verwendung ringförmiger Oligosaccharide als Ladungssteuermittel

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1362933A (fr) * 1962-07-11 1964-06-05 Gevaert Photo Prod Nv Procédé pour l'encapsulage d'eau et de composés en phase aqueuse

Also Published As

Publication number Publication date
FR2369598B1 (fr) 1982-06-04
AU506742B2 (en) 1980-01-24
JPS5355126A (en) 1978-05-19
GB1594023A (en) 1981-07-30
DE2747725A1 (de) 1978-05-03
DE2747701A1 (de) 1978-05-03
JPS5355127A (en) 1978-05-19
AU2983577A (en) 1979-04-26
FR2369598A1 (fr) 1978-05-26

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse