IL40061A - Electrophotographic reproduction method and sheet - Google Patents

Electrophotographic reproduction method and sheet

Info

Publication number
IL40061A
IL40061A IL40061A IL4006172A IL40061A IL 40061 A IL40061 A IL 40061A IL 40061 A IL40061 A IL 40061A IL 4006172 A IL4006172 A IL 4006172A IL 40061 A IL40061 A IL 40061A
Authority
IL
Israel
Prior art keywords
polyvinyl butyral
polyvinyl
content
layer
process according
Prior art date
Application number
IL40061A
Other versions
IL40061A0 (en
Original Assignee
Gestetner Ltd
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 Gestetner Ltd filed Critical Gestetner Ltd
Publication of IL40061A0 publication Critical patent/IL40061A0/en
Publication of IL40061A publication Critical patent/IL40061A/en

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
    • G03G5/0532—Macromolecular bonding materials obtained by reactions only involving carbon-to-carbon unsatured bonds
    • G03G5/0542—Polyvinylalcohol, polyallylalcohol; Derivatives thereof, e.g. polyvinylesters, polyvinylethers, polyvinylamines

Claims (12)

40061/2 S WHAT WE CLAIM IS: .
1. An electrophotographic sheet comprising a support sheet coated with a "layer of a dispersion of dye-sensitized zinc oxide in a resinous binder comprising a major proportion of. polyvinyl butyral having a hydro;cy content below 15% and a polyvinyl butyral content of at least 85%.
2. An electrophotographic sheet according to Claim 1 in which the polyvinyl butyral has an acid value below 1.
3. An electrophotographic sheet according to Claim 1 or 2 in which the polyvinyl butyral has a polyvinyl alcohol content of 9 to 13% and a polyvinyl acetate content below
4. An electrophotographic sheet according to any of Claims 1-3 in which the resinous binder is 100% polyvinyl butyral.
5. Process of copying which comprises electrically charging a layer of dye-se sitized zinc oxide dispersed in a resinous binder comprising a major proportion of polyvinyl butyral having a hydroxy content below 15% and a polyvinyl butyral content of at least 85%, exposing said charged layer to light in a pattern corresponding to. the image to be copied thereby producing a charged image on said layer, developing said image, and transferring the on which it is Tixed same to a recipient surface therefor/and repeating said charging, image-wise discharging, developing and transfer at least 800 times using the same zinc oxide layer.
6. Process according to claim 5 in which the polyvinyl butyral has an acid value below 1.
7. Process according to Claim 5 or 6 in which the polyvinyl butyral has a polyvinyl alcohol content of 9 to 13% and a polyvinyl acetate content below 2½%.
8. Process according to any of Claims 5 to 7 in which the resinous binder is 100% polyvinyl butyral.
9. Process according to any of Claims 5 to 8 in which 600 to 1000 copies are produced at a rate of at least two copies per minute.
10. An electrophotographic sheet according to Claim 1 substantially as described in the Example.
11. Process according to Claim 5 substantially a3 hereinbefore described.
12. Copies produced by the process of any of Claims 5 ,to 9 or 11. - -
IL40061A 1971-08-12 1972-08-07 Electrophotographic reproduction method and sheet IL40061A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3789471A GB1361990A (en) 1971-08-12 1971-08-12 Electrophotographic reproduction

Publications (2)

Publication Number Publication Date
IL40061A0 IL40061A0 (en) 1972-10-29
IL40061A true IL40061A (en) 1976-02-29

Family

ID=10399757

Family Applications (1)

Application Number Title Priority Date Filing Date
IL40061A IL40061A (en) 1971-08-12 1972-08-07 Electrophotographic reproduction method and sheet

Country Status (17)

Country Link
JP (1) JPS5228571B2 (en)
AT (1) AT325946B (en)
AU (1) AU462779B2 (en)
BE (1) BE787330A (en)
CA (1) CA974114A (en)
CH (1) CH564798A5 (en)
DD (1) DD99457A5 (en)
DE (1) DE2239431A1 (en)
ES (1) ES405787A1 (en)
FR (1) FR2150048A5 (en)
GB (1) GB1361990A (en)
IE (1) IE36888B1 (en)
IL (1) IL40061A (en)
IT (1) IT963957B (en)
NL (1) NL7211006A (en)
SE (1) SE373960B (en)
ZA (1) ZA725438B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5434571U (en) * 1977-08-09 1979-03-07
JPS6029944B2 (en) * 1978-12-13 1985-07-13 株式会社リコー Laminated electrophotographic photoreceptor and method for manufacturing the same
DE3705888A1 (en) * 1986-02-24 1987-08-27 Fuji Photo Film Co Ltd ELECTROPHOTOGRAPHIC FLAT PRINT FORMING
JPH0690546B2 (en) * 1986-03-14 1994-11-14 富士写真フイルム株式会社 Electrophotographic lithographic printing plate
JPH0750338B2 (en) * 1986-05-02 1995-05-31 富士写真フイルム株式会社 Electrophotographic lithographic printing plate

Also Published As

Publication number Publication date
IE36888L (en) 1973-02-12
IE36888B1 (en) 1977-03-16
AU4553872A (en) 1974-02-14
SE373960B (en) 1975-02-17
BE787330A (en) 1972-12-01
NL7211006A (en) 1973-02-14
ATA695772A (en) 1975-01-15
DD99457A5 (en) 1973-08-05
ZA725438B (en) 1973-04-25
CH564798A5 (en) 1975-07-31
AU462779B2 (en) 1975-07-10
IL40061A0 (en) 1972-10-29
CA974114A (en) 1975-09-09
FR2150048A5 (en) 1973-03-30
ES405787A1 (en) 1975-07-16
GB1361990A (en) 1974-07-30
IT963957B (en) 1974-01-21
AT325946B (en) 1975-11-10
JPS5228571B2 (en) 1977-07-27
JPS4829442A (en) 1973-04-19
DE2239431A1 (en) 1973-02-15

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