GB1109294A - Process for the manufacture of an electrophotographic material - Google Patents

Process for the manufacture of an electrophotographic material

Info

Publication number
GB1109294A
GB1109294A GB22175/65A GB2217565A GB1109294A GB 1109294 A GB1109294 A GB 1109294A GB 22175/65 A GB22175/65 A GB 22175/65A GB 2217565 A GB2217565 A GB 2217565A GB 1109294 A GB1109294 A GB 1109294A
Authority
GB
United Kingdom
Prior art keywords
resin
photoconductor
particles
vinyl
polymers
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
GB22175/65A
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.)
Lumiere SA
Original Assignee
Lumiere SA
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 Lumiere SA filed Critical Lumiere SA
Publication of GB1109294A publication Critical patent/GB1109294A/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
    • G03G5/05—Organic bonding materials; Methods for coating a substrate with a photoconductive layer; Inert supplements for use in photoconductive layers
    • G03G5/0528—Macromolecular bonding materials
    • G03G5/0596—Macromolecular compounds characterised by their physical properties
    • 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
    • G03G5/05—Organic bonding materials; Methods for coating a substrate with a photoconductive layer; Inert supplements for use in photoconductive layers
    • G03G5/0528—Macromolecular bonding materials
    • 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
    • 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

Landscapes

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

Abstract

Particles of photoconductors are coated with a continuous layer of resin having an electrical specific resistance above 1013 Ohm. cm. The photoconductor is preferably ZnO but may also be, for example, an oxide of antimony, aluminium, bismuth, cadmium, mercury, molybdenum or lead. The resin may be a hydrophobic resin. Specified are silicone resins, polymers of styrene, vinyl esters, preferably vinyl butyral, vinyl acetate and vinyl chloride, with which, if desired, a small proportion of a carboxylic acid, for example acrylic or maleic acid, may have been polymerized. The coating is supplied by mixing the particles with a solution of the resin, filtering and drying the residue.ALSO:A process for the manufacture of an electrophotographic material by coating a support with a resin layer containing particles of a photo-conductor and solidifying the said resin layer, comprising the particles of photoconductor are first coated with a continuous layer of a resin having an electrical specific resistance above 1013 Ohm. cm. and then making a preparation from the photoconductor thus pretreated and a resin acting as a binder in an aqueous medium that does not dissolve the resin coating of the photoconductor, and then applying the aqueous preparation to a support. The resin having a specific resistance above 1013 Ohm. cm. may be a hydrophobic resin. Examples are polymers of styrene, vinyl esters, preferably vinyl acetate and vinyl chloride with which, if desired, a small proportion of a carboxylic acid, for example acrylic or maleic acid may have been copolymerized. Such polymers can be dissolved, for example, in acetone. Silicone resins which are soluble in toluene are also specified. The binder may be a resin that contains carboxylic acid groups. These polymers should be of a nature such that they are soluble in water at least in the form of their alkali metal or ammonium salts. Suitable polymerizable carboxylic acids are crotonic, methacrylic, chloracylic, acrylic and maleic acids which may be co-polymerised with for example acrylic acid esters, vinyl esters of lower carboxylic acids, e.g. vinyl acetate, and vinyl chloride or styrene. Photoconductors specified are the oxides of antimony, aluminium, bismuth, cadmium, mercury, molybdenum, lead and zinc. The photoconductor particles have a size of preferably below 1u. 0.1% to 5%, based on the weight of the photoconductor, of the following elements or a compound thereof may be added singly or in an admixture with each other; boron, thallium, lithanium, lead, cobalt or silver. When a water-soluble resin is used as a binder, there may be added to the preparation substances which on being heated render the resin water-insoluble by forming insoluble polyamides. Such substances are compounds of hexavalent chromium, for example ammonium bichromate and amines which are non-volatile at temperatures up to 120 DEG C. containing at least two reactive amino groups. The support may be of paper and may be coated on both sides.
GB22175/65A 1964-05-25 1965-05-25 Process for the manufacture of an electrophotographic material Expired GB1109294A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH678964A CH438944A (en) 1964-05-25 1964-05-25 Method of making an electrophotographic material

Publications (1)

Publication Number Publication Date
GB1109294A true GB1109294A (en) 1968-04-10

Family

ID=4315046

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22175/65A Expired GB1109294A (en) 1964-05-25 1965-05-25 Process for the manufacture of an electrophotographic material

Country Status (8)

Country Link
US (1) US3460963A (en)
BE (1) BE664380A (en)
CH (1) CH438944A (en)
DE (1) DE1497236A1 (en)
FR (1) FR1434760A (en)
GB (1) GB1109294A (en)
NL (1) NL6506615A (en)
SE (1) SE311597B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0056879A1 (en) * 1981-01-15 1982-08-04 Océ-Nederland B.V. Reusable electrophotographic element and process for preparing that element

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3511648A (en) * 1966-09-02 1970-05-12 Dow Chemical Co Electrophotographic coatings
DE2952650C2 (en) * 1978-12-28 1983-08-04 Konishiroku Photo Industry Co., Ltd., Tokyo Encapsulated photoconductor
JP2549541B2 (en) * 1987-03-09 1996-10-30 富士写真フイルム株式会社 Electrophotographic photoreceptor
US5462825A (en) * 1992-11-16 1995-10-31 Mita Industrial Co., Ltd. Electrophotographic photoconductor having a photosensitive layer with charge generating particles and a charge transporting material dispersed in a binder
DE102015015354B4 (en) * 2015-12-01 2017-06-14 Waldemar Frei Method for producing a design surface of an electrically conductive body

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2717246A (en) * 1952-12-10 1955-09-06 American Cyanamid Co Titanium dioxide pigment coated with a hydrous oxide and a polysiloxane
BE541668A (en) * 1955-08-30
US2875054A (en) * 1956-05-24 1959-02-24 Eastman Kodak Co Preparation of coatings of improved internal strength
BE562338A (en) * 1956-11-14
US3121006A (en) * 1957-06-26 1964-02-11 Xerox Corp Photo-active member for xerography
US3160503A (en) * 1959-06-22 1964-12-08 Warren S D Co Electrophotographic recording paper and method of making
US3139354A (en) * 1961-03-31 1964-06-30 Rca Corp Magnetic recording element containing magnetic particles treated with werner-type complex compound and method of manufacture thereof
GB943554A (en) * 1961-04-10 1963-12-04 British Titan Products Titanium dioxide pigment compositions
BE621481A (en) * 1961-08-17
US3330693A (en) * 1962-10-29 1967-07-11 Pateco Method of making a magnetic record member with encapsulated ferromagnetic particles in a binder and resulting product
US3245786A (en) * 1964-06-08 1966-04-12 Gevaert Photo Prod Nv Photoconductive recording materials

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0056879A1 (en) * 1981-01-15 1982-08-04 Océ-Nederland B.V. Reusable electrophotographic element and process for preparing that element

Also Published As

Publication number Publication date
US3460963A (en) 1969-08-12
SE311597B (en) 1969-06-16
FR1434760A (en) 1966-04-08
NL6506615A (en) 1965-11-26
BE664380A (en) 1965-11-24
CH438944A (en) 1967-06-30
DE1497236A1 (en) 1969-05-22

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