GB1179016A - Photoconductive Imaging Member - Google Patents
Photoconductive Imaging MemberInfo
- Publication number
- GB1179016A GB1179016A GB5639/67A GB563967A GB1179016A GB 1179016 A GB1179016 A GB 1179016A GB 5639/67 A GB5639/67 A GB 5639/67A GB 563967 A GB563967 A GB 563967A GB 1179016 A GB1179016 A GB 1179016A
- Authority
- GB
- United Kingdom
- Prior art keywords
- photo
- fibres
- conductive layer
- conductive
- backing
- 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
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
-
- 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
- G03G5/0557—Macromolecular bonding materials obtained otherwise than by reactions only involving carbon-to-carbon unsatured bonds
- G03G5/0585—Cellulose and derivatives
-
- 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
- G03G5/0589—Macromolecular compounds characterised by specific side-chain substituents or end groups
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Paper (AREA)
- Photoreceptors In Electrophotography (AREA)
Abstract
1,179,016. Electrophotographic materials. HARRIS-INTERTYPE CORP. 6 Feb., 1967 [7 Feb., 1966], No. 5639/67. Heading H1K. [Also in Division D2] The photo-conductive layer of an electrophotographic material consists of a particulate photo-conductor dispersed in and chemically associated with an intertwined matted fibrous material. The fibres may be cellulosic materials obtained from wood pulp or cotton. In the purification of wood pulp, lignin is removed to leave cellulose and polyglucuronic acid, the carboxyl groups of which are thought responsible for the association between the fibres and the photo-conductor (zinc oxide, titanium dioxide, or zinc sulphide). Treated wood pulp contains residues of many processing agents; these should be washed from the pulp before making it into copy paper. The carboxyl content of the fibres may be increased by one or more of several methods: (A) bleaching the pure pulp increases the carboxyl content by oxidation-bleach residue &c. should be washed out. (B) One component (ferrous ions, for example) of a polymerization catalyst system may be absorbed on the fibres by ion exchange involving the existing carboxyl groups, and a carboxylated ethylenically unsaturated monomer added to the fibre slurry together with the second component (hydrogen peroxide) of the catalyst system. The monomer then polymerizes and, though it may only be closely associated with the fibre, probably forms a graft polymer with the fibre using reactive groups near the carboxyl groups bearing the catalyst component. Suitable monomers are acrylic acid, α- and #-methacrylic acids, itaconic acid, and maleic acid. They may be incorporated as homopolymers or as copolymers with non- acidic vinyl monomers. (C) The fibrous furnish may be mixed with a latex of a carboxylated polymer-with a latex of small particle size the particles become associated with the fibres by secondary valence effects. Suitable polymers are copolymers of crotonic acid and vinyl acetate; carboxylated styrene-butadiene copolymers; and terpolymers of styrene and butadiene with acrylic, fumaric or crotonic acid. The fibres, treated or untreated, are dispersed with the photo-conductor and may be fed to a vertical paper-making machine. Alternatively non-woven fabric techniques may be used and supplementary adhesives incorporated, or high temperatures may be us d to melt flow the fibre-polymer adduct to form a sheet. Additives which may be incorporated in the photo-conductive layer include ammonium lignin sulphonate (with or without wood sugars), inorganic titanium gels, optical sensitizers, and pigments to change the colour of the layers. The photo-conductive layer may be used alone or may be attached to relatively conductive backing. Such a backing may have photo-conductive layers on both surfaces. The layers may be separately exposed and developed. To attach the backing the photo-conductive layer may be wet-laminated to a partially dewatered paper base stock containing one or more of chrysotile asbestos, alkyl ketene dimers or non-photo-conductive conductive pigments (e.g. certain forms of zinc oxide) to increase its conductivity. Paper processing additives are preferably removed from the backing to prevent their diffusion into the photo-conductive layer.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US52529466A | 1966-02-07 | 1966-02-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1179016A true GB1179016A (en) | 1970-01-28 |
Family
ID=24092667
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5639/67A Expired GB1179016A (en) | 1966-02-07 | 1967-02-06 | Photoconductive Imaging Member |
Country Status (4)
Country | Link |
---|---|
US (1) | US3486889A (en) |
DE (1) | DE1522643A1 (en) |
FR (1) | FR1510575A (en) |
GB (1) | GB1179016A (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3620729A (en) * | 1969-08-28 | 1971-11-16 | Nat Starch Chem Corp | Electrophotographic coating compositions employing styrene terpolymers as binders |
US4194020A (en) * | 1974-03-08 | 1980-03-18 | Canon Kabushiki Kaisha | Method for preventing degradation of a liquid developer for electrostatic recording |
JPS50120836A (en) * | 1974-03-08 | 1975-09-22 | ||
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 |
US5053301A (en) * | 1988-03-14 | 1991-10-01 | Fuji Photo Film Co., Ltd. | Electrophotographic lithographic printing plate precursor |
US20030037893A1 (en) * | 2000-04-04 | 2003-02-27 | Sami Simula | Electrophotographic paper and method for manufacturing thereof |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2297691A (en) * | 1939-04-04 | 1942-10-06 | Chester F Carlson | Electrophotography |
US2599542A (en) * | 1948-03-23 | 1952-06-10 | Chester F Carlson | Electrophotographic plate |
US2965481A (en) * | 1955-08-01 | 1960-12-20 | Haloid Xerox Inc | Electrostatic charging and image formation |
US3155503A (en) * | 1959-02-26 | 1964-11-03 | Gevaert Photo Prod Nv | Electrophotographic material |
US3062700A (en) * | 1960-02-11 | 1962-11-06 | Harold R Dalton | Static discharging paper |
-
1966
- 1966-02-07 US US525294A patent/US3486889A/en not_active Expired - Lifetime
-
1967
- 1967-02-03 DE DE19671522643 patent/DE1522643A1/en active Pending
- 1967-02-06 GB GB5639/67A patent/GB1179016A/en not_active Expired
- 1967-02-07 FR FR94024A patent/FR1510575A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1522643A1 (en) | 1969-10-02 |
FR1510575A (en) | 1968-01-19 |
US3486889A (en) | 1969-12-30 |
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