GB1475875A - Indirect electrophotographic processes - Google Patents

Indirect electrophotographic processes

Info

Publication number
GB1475875A
GB1475875A GB5308873A GB5308873A GB1475875A GB 1475875 A GB1475875 A GB 1475875A GB 5308873 A GB5308873 A GB 5308873A GB 5308873 A GB5308873 A GB 5308873A GB 1475875 A GB1475875 A GB 1475875A
Authority
GB
United Kingdom
Prior art keywords
nitro
electro
formula
bromine
hydroxyl
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
GB5308873A
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.)
Canon Production Printing Holding BV
Original Assignee
Oce Van der Grinten NV
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 Oce Van der Grinten NV filed Critical Oce Van der Grinten NV
Priority to CH836374A priority Critical patent/CH593503A5/xx
Priority to AU70235/74A priority patent/AU484142B2/en
Priority to NL7408346A priority patent/NL7408346A/en
Priority to JP7179774A priority patent/JPS5836334B2/en
Priority to US05/483,566 priority patent/US4054450A/en
Priority to DE2432388A priority patent/DE2432388A1/en
Priority to SE7408904A priority patent/SE387753B/en
Priority to BR5616/74A priority patent/BR7405616D0/en
Priority to IT69167/74A priority patent/IT1014488B/en
Priority to CA204,333A priority patent/CA1028889A/en
Priority to FR7423614A priority patent/FR2237228A1/fr
Priority to ES428055A priority patent/ES428055A1/en
Publication of GB1475875A publication Critical patent/GB1475875A/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)

Abstract

1475875 Sensitized electro-photographic materials OCE-VAN DER GRINTEN NV 9 July 1974 [9 July 1973 15 Nov 1973] 32553/73 and 53088/73 Heading G2C An electro-photographic process wherein an electro-photographic material containing a photoconductive layer sensitized by a dye of Formula or a mesomeric or tantomeric form thereof wherein M 1 and M 2 are H, metal, methyl or ethyl, X is C or sulphoxide, Y 1 and Y 2 are H, halogen, C 1-4 alkyl, C 1-4 alkoxy, nitro, hydroxyl or esterified hydroxyl or together are heterocyclic oxygen, and each remaining position is unsubstituted or substituted by halogen, C 1-4 alkyl, C 1-4 alkoxy, nitro, hydrexyl or esterified hydroxyl provided that one position ortho to the keto - or M 1 O- group or both is nitro substituted; is uniformly charged, imagewise exposed and the latent image is (i) either powder developed and transferred or (ii) transferred and powder developed. Specified dyes are fluoresceins of Formula wherein A is H, nitro, bromine or iodine, B is nitro, H, hydroxyl, bromine or chlorine and D is H, bromine or chlorine, or phthalein dyes of Formula wherein A is H, Br, Cl, OH, Me, OMe or NO 2 , B is NO 2 , Q is H or OH, Y is H or NO 2 , and D is H, Br or I. ZnO is the specified photo-conductor. Electro-photographic materials sensitized by fluorescein dyes of the first Formula wherein Y 1 and Y 2 , together represent O and X is carbon and M 1 and M 2 are as specified above are disclosed in App. No. 32554/73.
GB5308873A 1973-07-09 1973-11-15 Indirect electrophotographic processes Expired GB1475875A (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
CH836374A CH593503A5 (en) 1973-07-09 1974-06-19
AU70235/74A AU484142B2 (en) 1973-07-09 1974-06-19 Indirect electrophotographic process with dye sensitized photoconductive materials
NL7408346A NL7408346A (en) 1973-07-09 1974-06-21 INDIRECT ELECTROPHOTOGRAPHIC METHOD.
JP7179774A JPS5836334B2 (en) 1973-07-09 1974-06-22 Indirect electrophotographic copying method
US05/483,566 US4054450A (en) 1973-07-09 1974-06-27 Indirect electrophotographic process with a nitro-phenolsultonephthalein
DE2432388A DE2432388A1 (en) 1973-07-09 1974-07-05 INDIRECT ELECTROPHOTOGRAPHIC PROCESS WITH DYE-SENSITIZED PHOTOLOCONDUCTIVE MATERIALS
SE7408904A SE387753B (en) 1973-07-09 1974-07-05 PROCEDURE FOR INDIRECT ELECTROPHOTOGRAPHIC COPYING WITH COMMON-SIBILIZED PHOTOELECTRIC CONDUCTIVE MATERIAL
BR5616/74A BR7405616D0 (en) 1973-07-09 1974-07-08 PROCESS FOR INDIRECT ELECTROPHOTOGRAPHIC COPYING
IT69167/74A IT1014488B (en) 1973-07-09 1974-07-08 PROCEDURE OF INDIRECT ELECTRO PHOTOGRAPHIC COPYING
CA204,333A CA1028889A (en) 1973-07-09 1974-07-08 Indirect electrophotographic process with dye sensitized photoconductive materials
FR7423614A FR2237228A1 (en) 1973-07-09 1974-07-08
ES428055A ES428055A1 (en) 1973-07-09 1974-07-08 Indirect electrophotographic process with a nitro-phenolsultonephthalein

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3255373 1973-07-09

Publications (1)

Publication Number Publication Date
GB1475875A true GB1475875A (en) 1977-06-10

Family

ID=10340406

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5308873A Expired GB1475875A (en) 1973-07-09 1973-11-15 Indirect electrophotographic processes

Country Status (1)

Country Link
GB (1) GB1475875A (en)

Similar Documents

Publication Publication Date Title
US3498785A (en) Novel photographic products and processes
US3184313A (en) Silver halide emulsion desensitized with a tetraalkyl thiuram disulfide
GB1475875A (en) Indirect electrophotographic processes
US4036643A (en) Diffusion transfer color process using lactone or sultone ring containing lipophilic non-diffusing color formers which yield diffusing dyes
GB1459171A (en) Thio-substituted a-alkanoyl acetamides and their use as yellow-forming photographic couplers
GB1316335A (en) Process for the development of silver halide photographic light- sensitive materials
GB1218936A (en) Diazotype light-sensitive copying papers
JPS5480118A (en) Silver halide photosensitive material
JPS5746980A (en) Thiopyrylium compound and photoconductive composition containing the same
US3590692A (en) Silver halide developing agents and photographic process
GB1280174A (en) Colour photographic sensitive materials
GB1475876A (en) Dye sensitised photoconductive materials
JPS5639541A (en) Color photographic material
GB1265043A (en)
JPS56164343A (en) Color photographic sensitive silver halide material
GB1298542A (en) Development of silver halide photographic materials
US3342595A (en) Non-silver photosensitive printout compositions
US3560216A (en) Light sensitive free radical imaging material containing pyrazoline sensitizers
JPS57176032A (en) Silver halide photographic material
JPS56111849A (en) Silver halide photographic sensitive material
US3230083A (en) Photographic processes and products
US3784383A (en) Light sensitive silver halide color photographic material
US3690884A (en) Photographic dry copying process
GB1344690A (en) Method of developing silver halide photosensitive material
JPS5461519A (en) Photographic emulsion of silver halide

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee