GB1005247A - Improvements in or relating to electrophotographic materials - Google Patents

Improvements in or relating to electrophotographic materials

Info

Publication number
GB1005247A
GB1005247A GB44933/61A GB4493361A GB1005247A GB 1005247 A GB1005247 A GB 1005247A GB 44933/61 A GB44933/61 A GB 44933/61A GB 4493361 A GB4493361 A GB 4493361A GB 1005247 A GB1005247 A GB 1005247A
Authority
GB
United Kingdom
Prior art keywords
photo
zinc oxide
reducing
reducing agent
relating
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
GB44933/61A
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak 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 Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of GB1005247A publication Critical patent/GB1005247A/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
    • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/02—Charge-receiving layers
    • G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
    • G03G5/08—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being inorganic
    • G03G5/087—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being inorganic and being incorporated in an organic bonding material
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/02—Charge-receiving layers
    • G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
    • G03G5/09—Sensitisors or activators, e.g. dyestuffs

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Paper (AREA)

Abstract

The dark resistance of photo-conductive zinc oxide which is to be incorporated in electrophotographic material is decreased by treating between 0.1 and 20% of the powder surface with a reducing agent having a reducing potential equal to or greater than that of the stannous ion. Reducing agents specified are tannic acid, gentisic acid, pyrogallol, benzylaminophenol, ascorbic acid, and stannous salts. The zinc oxide is treated by adding a solution of the reducing agent to a slurry of the oxide. The other components of a photo-conductive layer may then be added, for example polymers and dyes, and an electro-photographic material made by coating the mix on to a support. Specifications 1,005,245 and 1,005,246 are referred to.
GB44933/61A 1960-12-14 1961-12-14 Improvements in or relating to electrophotographic materials Expired GB1005247A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US7575360A 1960-12-14 1960-12-14

Publications (1)

Publication Number Publication Date
GB1005247A true GB1005247A (en) 1965-09-22

Family

ID=22127772

Family Applications (3)

Application Number Title Priority Date Filing Date
GB44931/61A Expired GB1005245A (en) 1960-12-14 1961-12-14 Improvements in or relating to electrophotographic materials
GB44933/61A Expired GB1005247A (en) 1960-12-14 1961-12-14 Improvements in or relating to electrophotographic materials
GB44932/61A Expired GB1005246A (en) 1960-12-14 1961-12-14 Improvements in or relating to electrophotographic materials

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB44931/61A Expired GB1005245A (en) 1960-12-14 1961-12-14 Improvements in or relating to electrophotographic materials

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB44932/61A Expired GB1005246A (en) 1960-12-14 1961-12-14 Improvements in or relating to electrophotographic materials

Country Status (5)

Country Link
JP (1) JPS3822646B1 (en)
BE (1) BE611387A (en)
DE (1) DE1241709B (en)
FR (1) FR1314045A (en)
GB (3) GB1005245A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0001140A1 (en) * 1977-09-13 1979-03-21 Agfa-Gevaert N.V. Electrophotographic recording material

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1408425A (en) * 1972-05-05 1975-10-01 Zochem Ltd Production of photoconductive zinc oxide
US3948658A (en) * 1973-07-26 1976-04-06 St. Joe Minerals Corporation Bicharge photoconductive zinc oxides containing iodine
JPS5467698A (en) 1977-11-08 1979-05-31 Matsushita Electric Ind Co Ltd Method of reducing resistance of conductive material
JPS5646240A (en) * 1979-09-20 1981-04-27 Canon Inc Electrophotographic receptor
JPS5646565A (en) * 1979-09-21 1981-04-27 Canon Inc Manufacture of photoconductive particle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0001140A1 (en) * 1977-09-13 1979-03-21 Agfa-Gevaert N.V. Electrophotographic recording material

Also Published As

Publication number Publication date
GB1005245A (en) 1965-09-22
BE611387A (en)
GB1005246A (en) 1965-09-22
DE1241709B (en) 1967-06-01
FR1314045A (en) 1963-01-04
JPS3822646B1 (en) 1963-10-25

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