JPS5729494A - Original plate for planographic printing - Google Patents

Original plate for planographic printing

Info

Publication number
JPS5729494A
JPS5729494A JP10411080A JP10411080A JPS5729494A JP S5729494 A JPS5729494 A JP S5729494A JP 10411080 A JP10411080 A JP 10411080A JP 10411080 A JP10411080 A JP 10411080A JP S5729494 A JPS5729494 A JP S5729494A
Authority
JP
Japan
Prior art keywords
intermediate layer
ethylene
copolymer
vinyl acetate
layer
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.)
Pending
Application number
JP10411080A
Other languages
Japanese (ja)
Inventor
Haruo Hasegawa
Giichi Kaneko
Tomoko Watanabe
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP10411080A priority Critical patent/JPS5729494A/en
Publication of JPS5729494A publication Critical patent/JPS5729494A/en
Pending legal-status Critical Current

Links

Landscapes

  • Photoreceptors In Electrophotography (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Photosensitive Polymer And Photoresist Processing (AREA)

Abstract

PURPOSE: To improve hydrophilic propety and water-proof of an intermediate layer by a method wherein special vinyl acetate ethylene copolymer and inorganic pigment are mixed as a main component on the intermediate layer of the original plate of a planographic printing.
CONSTITUTION: On a water-proof support like wet strength high grade paper are provided a photoconductive layer, a dielectric resin layer, a photosensitive cinnamic acid resin, in which specific intermediate layer, photoconductive zinc oxide are dispersed in bonding agent resin. In this case, the intermediate layer is made up, as the main component, of a bonding agent obtained by saponifying completely or partially the copolymer of inorganic pigment like clay, potassium conbonate etc., ethylene and vinyl acetate. The complete saponified material is obtained as a copolymer of ethylene and vinyl alcohol and the partial saponified material is obtained as a triple copolyer of ethylene, vinyl alcohol and vinyl acetate. Accordingly the intermediate layer is sufficiently waterproof and hydrophilic and rich in reliability.
COPYRIGHT: (C)1982,JPO&Japio
JP10411080A 1980-07-29 1980-07-29 Original plate for planographic printing Pending JPS5729494A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10411080A JPS5729494A (en) 1980-07-29 1980-07-29 Original plate for planographic printing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10411080A JPS5729494A (en) 1980-07-29 1980-07-29 Original plate for planographic printing

Publications (1)

Publication Number Publication Date
JPS5729494A true JPS5729494A (en) 1982-02-17

Family

ID=14371980

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10411080A Pending JPS5729494A (en) 1980-07-29 1980-07-29 Original plate for planographic printing

Country Status (1)

Country Link
JP (1) JPS5729494A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59159394A (en) * 1983-03-03 1984-09-08 Ricoh Co Ltd Thermal recording material
JPS60176045A (en) * 1984-02-22 1985-09-10 Tomoegawa Paper Co Ltd Electrophotographic sensitive body
JPH02212854A (en) * 1989-02-13 1990-08-24 Konica Corp Photosensitive body

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59159394A (en) * 1983-03-03 1984-09-08 Ricoh Co Ltd Thermal recording material
JPS60176045A (en) * 1984-02-22 1985-09-10 Tomoegawa Paper Co Ltd Electrophotographic sensitive body
JPH0365547B2 (en) * 1984-02-22 1991-10-14
JPH02212854A (en) * 1989-02-13 1990-08-24 Konica Corp Photosensitive body

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