GB1020755A - Improvements in or relating to photoconductive materials - Google Patents

Improvements in or relating to photoconductive materials

Info

Publication number
GB1020755A
GB1020755A GB31098/62A GB3109862A GB1020755A GB 1020755 A GB1020755 A GB 1020755A GB 31098/62 A GB31098/62 A GB 31098/62A GB 3109862 A GB3109862 A GB 3109862A GB 1020755 A GB1020755 A GB 1020755A
Authority
GB
United Kingdom
Prior art keywords
materials
binder
black
wax
grey
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
GB31098/62A
Inventor
Meyer Louis Sugarman
Nicholas Peter Steiner
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.)
American Photocopy Equipment Co
Original Assignee
American Photocopy Equipment 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 American Photocopy Equipment Co filed Critical American Photocopy Equipment Co
Publication of GB1020755A publication Critical patent/GB1020755A/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
    • G03G5/09—Sensitisors or activators, e.g. dyestuffs

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Paper (AREA)

Abstract

1,020,755. Electrophotographic materials. AMERICAN PHOTOCOPY EQUIPMENT CO. Aug. 14, 1962, No. 31098/62. Heading H1K. An electrophotographic material having photoconductive zinc oxide dispersed in an insulating binder is sensitized with a dye mixture which is grey or black in colour, so that the resultant material is substantially white in appearance. In the embodiments suitable combinations of known sensitizing dyes are used to provide the grey or black dye mixture. The binder is a natural or synthetic resin or wax which does not interefere with the spectral response of the material. Suitable binders include vinyl resins, silicone resins, phenolformaldehyde compounds, cellulose ethers, cellulose esters, paraffin wax, carnauba wax, and beeswax. Mixtures of binders may be used and plasticizers or similar modifying agents may be added. In the six specific examples the binder used is a silicone resin, and dye mixtures containing three or more components are used. The spectral response curves (two of which are similar) of the materials of the specific examples are illustrated in Figs. 1-5 (not shown). The photoconductive material in these examples is applied to a paper support, but possible supports include other relatively insulating materials, and also relatively conductive materials such as metal foils and paper impregnated with carbon black.
GB31098/62A 1959-10-26 1962-08-14 Improvements in or relating to photoconductive materials Expired GB1020755A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US848600A US3051569A (en) 1959-10-26 1959-10-26 Photoconductive materials
LU42233 1962-08-18

Publications (1)

Publication Number Publication Date
GB1020755A true GB1020755A (en) 1966-02-23

Family

ID=26639898

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31098/62A Expired GB1020755A (en) 1959-10-26 1962-08-14 Improvements in or relating to photoconductive materials

Country Status (5)

Country Link
US (1) US3051569A (en)
BE (1) BE621774A (en)
GB (1) GB1020755A (en)
LU (1) LU42233A1 (en)
NL (1) NL282476A (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE604419A (en) * 1960-06-01
FR1309799A (en) * 1961-01-14 1962-11-16 Kalle Ag Electrophotographic reproduction process
US3238149A (en) * 1961-07-10 1966-03-01 Method for improxvlnxg the the photocondug thqe response of dye sensitized zinc ox de
NL285128A (en) * 1961-07-10
US3268332A (en) * 1962-05-25 1966-08-23 Itek Corp Electrophotographic element
US3345161A (en) * 1963-03-13 1967-10-03 Gen Aniline & Film Corp Photoconductive material and process for its preparation
US3241959A (en) * 1963-07-29 1966-03-22 Eastman Kodak Co Sensitized electrophotographic composition
US3310401A (en) * 1963-08-28 1967-03-21 Rca Corp Electrophotographic member and process utilizing polyarylmethane dye intermediates
DE1447907A1 (en) * 1964-01-11 1968-12-05 Kalle Ag Multicolor electrophotographic printing
US3622316A (en) * 1964-10-05 1971-11-23 Polaroid Corp Photoresponsive articles comprising multilayer spectral sensitization systems
US3622317A (en) * 1965-03-08 1971-11-23 Polaroid Corp Photoresponsive articles comprising pseudo-polymeric spectral sensitization systems
US3403023A (en) * 1965-05-14 1968-09-24 Gaf Corp Dye sensitization of zinc oxide photoconductors
FR2191225B1 (en) * 1972-06-26 1977-08-05 Matsushita Electric Ind Co Ltd
GB1594352A (en) * 1976-06-09 1981-07-30 Fujitsu Ltd Photoconductive recording element
US4820620A (en) * 1986-07-17 1989-04-11 Minnesota Mining And Manufacturing Company Supersensitization of and reduction of dark decay rate in photoconductive films
US4990286A (en) * 1989-03-17 1991-02-05 President And Fellows Of Harvard College Zinc oxyfluoride transparent conductor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA576733A (en) * 1959-05-26 Canadian Kodak Co. Limited Sensitized photoconductive compositions comprising zinc oxide
CA576729A (en) * 1959-05-26 Canadian Kodak Co. Limited Electrophotographic printing element

Also Published As

Publication number Publication date
US3051569A (en) 1962-08-28
NL282476A (en)
BE621774A (en)
LU42233A1 (en) 1962-10-18

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