GB1255018A - Liquid-development of electrostatic images - Google Patents

Liquid-development of electrostatic images

Info

Publication number
GB1255018A
GB1255018A GB5265068A GB5265068A GB1255018A GB 1255018 A GB1255018 A GB 1255018A GB 5265068 A GB5265068 A GB 5265068A GB 5265068 A GB5265068 A GB 5265068A GB 1255018 A GB1255018 A GB 1255018A
Authority
GB
United Kingdom
Prior art keywords
resin
liquid
hydrocarbons
ccl
toner
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
Application number
GB5265068A
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Publication of GB1255018A publication Critical patent/GB1255018A/en
Expired 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
    • G03G9/12—Developers with toner particles in liquid developer mixtures
    • G03G9/13—Developers with toner particles in liquid developer mixtures characterised by polymer components
    • G03G9/132—Developers with toner particles in liquid developer mixtures characterised by polymer components 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
    • G03G13/00—Electrographic processes using a charge pattern
    • G03G13/06—Developing
    • G03G13/10—Developing using a liquid developer, e.g. liquid suspension
    • 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
    • G03G9/12—Developers with toner particles in liquid developer mixtures
    • 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
    • G03G9/12—Developers with toner particles in liquid developer mixtures
    • G03G9/125—Developers with toner particles in liquid developer mixtures characterised by the liquid
    • 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
    • G03G9/12—Developers with toner particles in liquid developer mixtures
    • G03G9/13—Developers with toner particles in liquid developer mixtures characterised by polymer components
    • G03G9/131—Developers with toner particles in liquid developer mixtures characterised by polymer components obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991—Coated
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31786—Of polyester [e.g., alkyd, etc.]

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Liquid Developers In Electrophotography (AREA)

Abstract

1,255,018. Electro-photographic liquid development. RICOH K.K. Nov.6, 1968 [Nov.6, 1967], No.52650/68. Heading G2H. An electro-photographic latent image on a support is developed by immersing the support in a liquid developer comprising a dispersion of a toner in an electrically insulating carrier liquid, said toner comprising particles of pigment coated with an alkyd resin, phenol resin, vinyl resin or methacrylate resin, said carrier liquid comprising a mixture of two liquids one having a greater solvent power for said resin than the other and both being selected from n-paraffinic hydrocarbons, isoparaffinic hydrocarbons, aromatic hydrocarbons, petroleum hydrocarbon mixtures including paraffins and aromatic hydrocarbons, and halogenated hydrocarbons, wherein the said mixture contains a sufficiently high proportion of the liquid of lower solvent power for the resin to impart a negative charge to the toner particles. Specified pigment particles are carbon black, resins include proprietory alkyd and phenol resins and copolymers of lauryl methacrylate with dimethyl or diethyl aminoethyl methacrylate or with styrene, and carrier liquids include chlorofluorohydrocarbons (e.g. CCl 3 F, CCl 2 F-CClF 2 , (CCl 2 F) 2 , perchlorethylene, CCl 4 , toluene, and various proprietory isoparaffinic or petroleum hydrocarbons.
GB5265068A 1967-11-06 1968-11-06 Liquid-development of electrostatic images Expired GB1255018A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7099167 1967-11-06

Publications (1)

Publication Number Publication Date
GB1255018A true GB1255018A (en) 1971-11-24

Family

ID=13447502

Family Applications (2)

Application Number Title Priority Date Filing Date
GB5265068A Expired GB1255018A (en) 1967-11-06 1968-11-06 Liquid-development of electrostatic images
GB1951771A Expired GB1256049A (en) 1967-11-06 1968-11-06 Liquid-development of electrostatic images

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB1951771A Expired GB1256049A (en) 1967-11-06 1968-11-06 Liquid-development of electrostatic images

Country Status (6)

Country Link
US (2) US3640751A (en)
BE (1) BE723435A (en)
DE (1) DE1807330B2 (en)
FR (1) FR1590854A (en)
GB (2) GB1255018A (en)
NL (1) NL6815797A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3640751A (en) * 1967-11-06 1972-02-08 Ricoh Kk Method for liquid-developing an electrostatic image
US3870644A (en) * 1969-02-10 1975-03-11 Ricoh Kk Liquid developer for plural-color electrophotography
US3939085A (en) * 1971-06-21 1976-02-17 Savin Business Machines Corporation Process for forming a liquid developer organisol
US3860552A (en) * 1973-09-12 1975-01-14 Pitney Bowes Inc Copolymer compositions and method of preparation
US4157973A (en) * 1974-05-15 1979-06-12 Pitney-Bowes, Inc. Copolymer compositions and method of preparation
US4285801A (en) * 1979-09-20 1981-08-25 Xerox Corporation Electrophoretic display composition
US4663264A (en) * 1986-04-28 1987-05-05 E. I. Du Pont De Nemours And Company Liquid electrostatic developers containing aromatic hydrocarbons
DE3673412D1 (en) * 1986-05-29 1990-09-13 Agfa Gevaert Nv HEAT AND PRINT FIXING OF A WET OR DAMP TONER IMAGE COMPREHENSIVE IMAGE PRODUCTION PROCESS.
IL112731A0 (en) * 1995-02-21 1995-05-26 Indigo Nv Imaging apparatus with temperature control
US5652282A (en) * 1995-09-29 1997-07-29 Minnesota Mining And Manufacturing Company Liquid inks using a gel organosol
US6255363B1 (en) 1995-09-29 2001-07-03 3M Innovative Properties Company Liquid inks using a gel organosol

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3058914A (en) * 1957-10-01 1962-10-16 Commw Of Australia Non-inflammable liquid developers for electrostatic images
NL285128A (en) * 1961-07-10
US3220830A (en) * 1961-10-02 1965-11-30 Kenffel & Esser Company Method of developing a negative electrostatic latent image
US3296140A (en) * 1964-02-13 1967-01-03 Dick Co Ab Liquid developer for electrographic printing
DE1497123A1 (en) * 1964-03-23 1969-08-07 Commw Of Australia Method for controlling the relative polarity of liquid developers for electrostatic printing
US3356498A (en) * 1964-11-09 1967-12-05 Dow Chemical Co Electrophotographic method comprising rinsing the imaged plate
US3357828A (en) * 1964-11-09 1967-12-12 Dow Chemical Co Electrophotographic rinse and method
FR1460650A (en) * 1965-09-01 1966-03-04 Commissariat Energie Atomique Improvements to recorders, analyzers or time selectors, of electrical pulses which can follow one another at extremely short intervals
US3438904A (en) * 1966-01-10 1969-04-15 Scm Corp Liquid toner
US3444083A (en) * 1966-09-19 1969-05-13 Australia Res Lab Electrophotographic toners
US3640751A (en) * 1967-11-06 1972-02-08 Ricoh Kk Method for liquid-developing an electrostatic image

Also Published As

Publication number Publication date
US3770485A (en) 1973-11-06
GB1256049A (en) 1971-12-08
DE1807330A1 (en) 1969-08-21
FR1590854A (en) 1970-04-20
US3640751A (en) 1972-02-08
DE1807330B2 (en) 1972-02-10
NL6815797A (en) 1969-05-08
BE723435A (en) 1969-04-16

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