GB914703A - Reversal type electroscopic developer powder - Google Patents

Reversal type electroscopic developer powder

Info

Publication number
GB914703A
GB914703A GB10220/59A GB1022059A GB914703A GB 914703 A GB914703 A GB 914703A GB 10220/59 A GB10220/59 A GB 10220/59A GB 1022059 A GB1022059 A GB 1022059A GB 914703 A GB914703 A GB 914703A
Authority
GB
United Kingdom
Prior art keywords
coated
wax
march
zinc oxide
electroscopic
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
GB10220/59A
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.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
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 RCA Corp, Radio Corporation of America filed Critical RCA Corp
Publication of GB914703A publication Critical patent/GB914703A/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
    • G03G9/097—Plasticisers; Charge controlling agents
    • G03G9/09708—Inorganic compounds
    • G03G9/09725—Silicon-oxides; Silicates
    • 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
    • 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
    • G03G9/09708—Inorganic compounds
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S101/00—Printing
    • Y10S101/37—Printing employing electrostatic force
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/001—Electric or magnetic imagery, e.g., xerography, electrography, magnetography, etc. Process, composition, or product
    • Y10S430/101—Photoconductive powder

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Developing Agents For Electrophotography (AREA)

Abstract

914,703. Electrophotographic developer powders. RADIO CORPORATION OF AMERICA. March 24, 1959 [March 28, 1958], No. 10220/59. Class 98 (2). An electrophotographic developer powder suitable for producing reversed prints comprises particles of electroscopic material coated with 1.5 to 9 parts by weight per 100 parts of said particles of colloidal silica, the electroscopic material being tribo-electrically positive with respect to the colloidal silica. The electroscopic material may be a thermoplastic film-forming material having a melting-point of 90‹ C. to 250‹ C., or it may comprise zinc oxide coated with such a thermoplastic material, especially a coated photoconductive zinc oxide according to Specification 914,702. Suitable thermoplastic materials are Piccolastic, Carnauba Wax, Polymekon Wax, specified petroleum waxes, Piccolyte (a hydrocarbon terpene resin) or a mixture of Acrawax C (a synthetic wax) with calcium stearate or a solid silicone resin. Dyes and pigments are specified for adding to the developer powders.
GB10220/59A 1958-03-28 1959-03-24 Reversal type electroscopic developer powder Expired GB914703A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US724522A US2986521A (en) 1958-03-28 1958-03-28 Reversal type electroscopic developer powder

Publications (1)

Publication Number Publication Date
GB914703A true GB914703A (en) 1963-01-02

Family

ID=24910748

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10220/59A Expired GB914703A (en) 1958-03-28 1959-03-24 Reversal type electroscopic developer powder

Country Status (6)

Country Link
US (1) US2986521A (en)
CH (1) CH386839A (en)
DE (1) DE1089265B (en)
FR (1) FR1219480A (en)
GB (1) GB914703A (en)
SE (1) SE311113B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3720617A (en) * 1970-05-20 1973-03-13 Xerox Corp An electrostatic developer containing modified silicon dioxide particles
US3939087A (en) * 1973-11-19 1976-02-17 Pitney-Bowes, Inc. Toner compositions containing silane treated fumed silica
US5082761A (en) * 1988-02-12 1992-01-21 Sharp Kabushiki Kaisha Set of electrophotographic toners

Families Citing this family (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE594137A (en) * 1959-08-17
BE606518A (en) * 1960-07-27
US3215527A (en) * 1960-09-02 1965-11-02 Rca Corp Method for preparing cured polymeric etch resists using a xerographic developer containing a curable polymer
US3343956A (en) * 1961-09-29 1967-09-26 Rca Corp Electrostatic printing process wherein development is achieved by sequenctial application of carrier liquid and developer particles
NL284236A (en) * 1961-10-24
BE626060A (en) * 1961-12-16
US3268332A (en) * 1962-05-25 1966-08-23 Itek Corp Electrophotographic element
NL297491A (en) * 1962-09-06 1900-01-01
US3275556A (en) * 1962-10-25 1966-09-27 Australia Res Lab Developer composition for electro-photographic images
US3376133A (en) * 1964-11-25 1968-04-02 Interchem Corp Multicolor electrostatic printing
US3392139A (en) * 1965-05-03 1968-07-09 Monsanto Graphic Syst Electroscopic powder containing titania-calcium sulfate pigment
US3504625A (en) * 1968-05-03 1970-04-07 Monsanto Graphic Syst Electrostatic printing
NL6916641A (en) * 1968-11-12 1970-05-14
US3933664A (en) * 1968-12-30 1976-01-20 Canon Inc. Organic photoconductive toner materials
US3852208A (en) * 1968-12-30 1974-12-03 Canon Kk Photoconductive toner composition
US3870644A (en) * 1969-02-10 1975-03-11 Ricoh Kk Liquid developer for plural-color electrophotography
US3819367A (en) * 1970-05-20 1974-06-25 Xerox Corp Imaging system
BE789988A (en) * 1971-10-12 1973-04-12 Xerox Corp COMPOSITION OF DEVELOPER AND METHOD FOR ITS USE
US3983045A (en) * 1971-10-12 1976-09-28 Xerox Corporation Three component developer composition
US4054712A (en) * 1971-11-15 1977-10-18 Canon Kabushiki Kaisha Toner image receiving sheet with color forming agents
US3893932A (en) * 1972-07-13 1975-07-08 Xerox Corp Pressure fixable toner
GB1442835A (en) * 1972-10-21 1976-07-14 Konishiroku Photo Ind Toner for use in developing electrostatic images
JPS5628259B2 (en) * 1973-02-13 1981-06-30
JPS556895B2 (en) * 1974-04-10 1980-02-20
NL7508056A (en) * 1975-07-07 1977-01-11 Oce Van Der Grinten Nv TONER POWDER FOR DEVELOPING ELECTROSTATIC IMAGES.
JPS5857103B2 (en) * 1976-02-28 1983-12-19 株式会社リコー dry developer powder
JPS52136635A (en) * 1976-05-12 1977-11-15 Toshiba Corp Electrostatic image developing toner
US4140644A (en) * 1977-08-03 1979-02-20 Eastman Kodak Company Polyester toner compositions
US4307169A (en) * 1977-11-10 1981-12-22 Moore Business Forms, Inc. Microcapsular electroscopic marking particles
JPS5692545A (en) * 1979-12-26 1981-07-27 Minolta Camera Co Ltd Electrophotographic developing agent and developing method
DE3142974A1 (en) 1980-10-31 1982-06-03 Canon K.K., Tokyo DEVELOPER FOR ELECTROPHOTOGRAPHIC PURPOSES AND DEVELOPMENT METHOD
US4517272A (en) * 1983-08-12 1985-05-14 Eastman Kodak Company Electrostatic dry toner composition
US4788123A (en) * 1987-06-08 1988-11-29 Xerox Corporation Process for minimizing image de-enhancement in flash fusing systems
US4837105A (en) * 1988-02-22 1989-06-06 Xerox Corporation Imaging process with prevention of toner spots
US5202213A (en) * 1988-08-31 1993-04-13 Canon Kabushiki Kaisha Developer with surface treated silicic acid for developing electrostatic image
US5069995A (en) * 1989-05-23 1991-12-03 Commtech International Management Corporation Stain elimination in consecutive color toning
US5194356A (en) * 1990-11-05 1993-03-16 Xerox Corporation Toner compositions
US5135832A (en) * 1990-11-05 1992-08-04 Xerox Corporation Colored toner compositions
US5364723A (en) * 1992-10-16 1994-11-15 Xerox Corporation Toner compositions with styrene terpene resins
US6190814B1 (en) * 1994-04-28 2001-02-20 Xerox Corporation Modified silica particles
US5948583A (en) * 1998-04-13 1999-09-07 Xerox Corp Toner composition and processes thereof
US6004714A (en) * 1998-08-11 1999-12-21 Xerox Corporation Toner compositions
US6214507B1 (en) 1998-08-11 2001-04-10 Xerox Corporation Toner compositions
US6190815B1 (en) 1998-08-11 2001-02-20 Xerox Corporation Toner compositions
US6017668A (en) * 1999-05-26 2000-01-25 Xerox Corporation Toner compositions
US6087059A (en) * 1999-06-28 2000-07-11 Xerox Corporation Toner and developer compositions
US6194117B1 (en) 1999-08-26 2001-02-27 Xerox Corporation Carrier composition and processes thereof
US6420078B1 (en) 2000-12-28 2002-07-16 Xerox Corporation Toner compositions with surface additives
US6426170B1 (en) 2001-05-07 2002-07-30 Xerox Corporation Toner and developer compositions with charge enhancing additives
US6451495B1 (en) 2001-05-07 2002-09-17 Xerox Corporation Toner and developer compositions with charge enhancing additives
US6566025B1 (en) 2002-01-16 2003-05-20 Xerox Corporation Polymeric particles as external toner additives

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1952886A (en) * 1932-06-14 1934-03-27 William J O'brien Pigment
US2277393A (en) * 1939-05-29 1942-03-24 American Zinc Lead & Smelting Nonreactive pigment
US2303330A (en) * 1942-02-02 1942-12-01 New Jersey Zinc Co Zinc oxide
US2585461A (en) * 1946-01-04 1952-02-12 Benjamin L Hirsch Method of making fluorescent zinc oxide
IT453731A (en) * 1948-05-01
US2753308A (en) * 1952-12-22 1956-07-03 Haloid Co Xerography developer composition
US2735784A (en) * 1953-07-30 1956-02-21 Process of electrostatic printing
US2839400A (en) * 1953-10-30 1958-06-17 Rca Corp Electrostatic printing
US2758939A (en) * 1953-12-30 1956-08-14 Rca Corp Electrostatic printing
US2785990A (en) * 1954-02-08 1957-03-19 American Zinc Lead & Smelting Method of surface treating zinc oxide
US2892794A (en) * 1955-01-03 1959-06-30 Haloid Xerox Inc Electrostatic developer and toner
US2901427A (en) * 1956-05-12 1959-08-25 Chem Fab Grunau Ag Dry fire extinguishing composition
US2877133A (en) * 1956-10-22 1959-03-10 Gen Dynamics Corp Electrostatic photography

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3720617A (en) * 1970-05-20 1973-03-13 Xerox Corp An electrostatic developer containing modified silicon dioxide particles
US3939087A (en) * 1973-11-19 1976-02-17 Pitney-Bowes, Inc. Toner compositions containing silane treated fumed silica
US5082761A (en) * 1988-02-12 1992-01-21 Sharp Kabushiki Kaisha Set of electrophotographic toners

Also Published As

Publication number Publication date
US2986521A (en) 1961-05-30
SE311113B (en) 1969-05-27
CH386839A (en) 1965-01-15
DE1089265B (en) 1960-09-15
FR1219480A (en) 1960-05-18

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